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Windows Analysis Report Kapitu.exe

Overview

General Information

Sample Name:	Kapitu.exe
Analysis ID:	491405
MD5:	149b6bd6b0d3dd2b0fbb111632d59fcc
SHA1:	33cdaa42e1a5c1fad1aa4f38dd9ad6ea75113aa7
SHA256:	b622dbe802148305104ef456835748d2fc0d8edeffa64787c43c78bcb1914b2f
Tags:	exeguloader
Infos:
Most interesting Screenshot:

Detection

GuLoader

Score:	68
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Found malware configuration

Yara detected GuLoader

Found potential dummy code loops (likely to delay analysis)

Machine Learning detection for sample

C2 URLs / IPs found in malware configuration

Creates a DirectInput object (often for capturing keystrokes)

Uses 32bit PE files

PE file contains strange resources

Contains functionality to read the PEB

Program does not show much activity (idle)

Uses code obfuscation techniques (call, push, ret)

Abnormal high CPU Usage

Detected potential crypto function

Classification

Process Tree

System is w10x64

Kapitu.exe (PID: 6004 cmdline: 'C:\Users\user\Desktop\Kapitu.exe' MD5: 149B6BD6B0D3DD2B0FBB111632D59FCC)

cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=downloadV"}

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.824313775.0000000002150000.00000040.00000001.sdmp	JoeSecurity_GuLoader_2	Yara detected GuLoader	Joe Security

Sigma Overview

No Sigma rule has matched

Jbx Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

Found malware configuration

Show sources

Source: Kapitu.exe

Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=downloadV"}

Machine Learning detection for sample

Show sources

Source: Kapitu.exe

Joe Sandbox ML: detected

Source: Kapitu.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Networking:

C2 URLs / IPs found in malware configuration

Show sources

Source: Malware configuration extractor

URLs: https://drive.google.com/uc?export=downloadV

Source: Kapitu.exe, 00000000.00000002.824160244.000000000071A000.00000004.00000020.sdmp

Binary or memory string: <HOOK MODULE="DDRAW.DLL" FUNCTION="DirectDrawCreateEx"/>

Source: Kapitu.exe

Static PE information: LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED

Source: Kapitu.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: C:\Users\user\Desktop\Kapitu.exe

Process Stats: CPU usage > 98%

Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02157807
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0215E1B8
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0215E3A7

Source: C:\Users\user\Desktop\Kapitu.exe

File created: C:\Users\user\AppData\Local\Temp\~DF4D2070BA92FABBC9.TMP

Jump to behavior

Source: Kapitu.exe

Static PE information: Section: .text IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ

Source: C:\Users\user\Desktop\Kapitu.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Source: C:\Users\user\Desktop\Kapitu.exe

Section loaded: C:\Windows\SysWOW64\msvbvm60.dll

Source: classification engine

Classification label: mal68.troj.evad.winEXE@1/0@0/0

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match

File source: 00000000.00000002.824313775.0000000002150000.00000040.00000001.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_00403C75 pushfd ; retf
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0040487A push esp; iretd
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0040480A push esp; iretd
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_00405F60 push ss; retf
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_00404F20 push 00000016h; ret
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_004033DC push eax; ret
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02152C34 push edi; retf
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02152EF9 push ebx; iretd
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02152F3E push ebx; iretd
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02152F88 push ebx; iretd
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_021549BD push edx; retf
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02152BFC push edi; retf
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_021507E5 push ecx; retf

Source: C:\Users\user\Desktop\Kapitu.exe

Process information set: NOOPENFILEERRORBOX

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Anti Debugging:

Found potential dummy code loops (likely to delay analysis)

Show sources

Source: C:\Users\user\Desktop\Kapitu.exe

Process Stats: CPU usage > 90% for more than 60s

Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0215D408 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_02159717 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0215CD70 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\Kapitu.exe	Code function: 0_2_0215E3A7 mov eax, dword ptr fs:[00000030h]

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: Kapitu.exe, 00000000.00000002.824238572.0000000000CA0000.00000002.00020000.sdmp	Binary or memory string: Program Manager
Source: Kapitu.exe, 00000000.00000002.824238572.0000000000CA0000.00000002.00020000.sdmp	Binary or memory string: Shell_TrayWnd
Source: Kapitu.exe, 00000000.00000002.824238572.0000000000CA0000.00000002.00020000.sdmp	Binary or memory string: Progman
Source: Kapitu.exe, 00000000.00000002.824238572.0000000000CA0000.00000002.00020000.sdmp	Binary or memory string: Progmanlock

Mitre Att&ck Matrix

Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Exfiltration	Command and Control	Network Effects	Remote Service Effects	Impact
Valid Accounts	Windows Management Instrumentation	Path Interception	Process Injection1	Virtualization/Sandbox Evasion11	Input Capture1	Security Software Discovery1	Remote Services	Input Capture1	Exfiltration Over Other Network Medium	Encrypted Channel1	Eavesdrop on Insecure Network Communication	Remotely Track Device Without Authorization	Modify System Partition
Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	Boot or Logon Initialization Scripts	Process Injection1	LSASS Memory	Virtualization/Sandbox Evasion11	Remote Desktop Protocol	Archive Collected Data1	Exfiltration Over Bluetooth	Application Layer Protocol1	Exploit SS7 to Redirect Phone Calls/SMS	Remotely Wipe Data Without Authorization	Device Lockout
Domain Accounts	At (Linux)	Logon Script (Windows)	Logon Script (Windows)	Obfuscated Files or Information1	Security Account Manager	Process Discovery1	SMB/Windows Admin Shares	Data from Network Shared Drive	Automated Exfiltration	Steganography	Exploit SS7 to Track Device Location	Obtain Device Cloud Backups	Delete Device Data
Local Accounts	At (Windows)	Logon Script (Mac)	Logon Script (Mac)	Binary Padding	NTDS	System Information Discovery1	Distributed Component Object Model	Input Capture	Scheduled Transfer	Protocol Impersonation	SIM Card Swap		Carrier Billing Fraud

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
Kapitu.exe	9%	ReversingLabs	Win32.Trojan.Mucc
Kapitu.exe	100%	Joe Sandbox ML

Dropped Files

No Antivirus matches

Unpacked PE Files

No Antivirus matches

Domains

No Antivirus matches

URLs

No Antivirus matches

Domains and IPs

Contacted Domains

No contacted domains info

Contacted IPs

No contacted IP infos

General Information

Joe Sandbox Version:	33.0.0 White Diamond
Analysis ID:	491405
Start date:	27.09.2021
Start time:	14:57:50
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 7m 16s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	Kapitu.exe
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:	17
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled HDC enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Detection:	MAL
Classification:	mal68.troj.evad.winEXE@1/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 31.6% (good quality ratio 21.4%) Quality average: 36.6% Quality standard deviation: 32%
HCA Information:	Failed
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe Override analysis time to 240s for sample files taking high CPU consumption
Warnings:	Show All Exclude process from analysis (whitelisted): MpCmdRun.exe, audiodg.exe, BackgroundTransferHost.exe, WMIADAP.exe, backgroundTaskHost.exe, conhost.exe, svchost.exe, wuapihost.exe Excluded IPs from analysis (whitelisted): 20.82.210.154, 23.0.174.200, 23.0.174.185, 20.199.120.182, 20.54.110.249, 40.112.88.60, 20.199.120.85, 23.10.249.43, 23.10.249.26, 20.199.120.151 Excluded domains from analysis (whitelisted): client.wns.windows.com, displaycatalog-rp-europe.md.mp.microsoft.com.akadns.net, wu-shim.trafficmanager.net, neu-displaycatalogrp.frontdoor.bigcatalog.commerce.microsoft.com, ris-prod.trafficmanager.net, asf-ris-prod-neu.northeurope.cloudapp.azure.com, ctldl.windowsupdate.com, iris-de-prod-azsc-neu-b.northeurope.cloudapp.azure.com, a767.dspw65.akamai.net, a1449.dscg2.akamai.net, arc.msn.com, download.windowsupdate.com.edgesuite.net, ris.api.iris.microsoft.com, wns.notify.trafficmanager.net, consumer-displaycatalogrp-aks2aks-europe.md.mp.microsoft.com.akadns.net, arc.trafficmanager.net, displaycatalog.mp.microsoft.com, img-prod-cms-rt-microsoft-com.akamaized.net, displaycatalog-rp.md.mp.microsoft.com.akadns.net Not all processes where analyzed, report is missing behavior information VT rate limit hit for: /opt/package/joesandbox/database/analysis/491405/sample/Kapitu.exe

Simulations

Behavior and APIs

No simulations

Joe Sandbox View / Context

IPs

No context

Domains

No context

ASN

No context

JA3 Fingerprints

No context

Dropped Files

No context

Created / dropped Files

No created / dropped files found

Static File Info

General
File type:	PE32 executable (GUI) Intel 80386, for MS Windows
Entropy (8bit):	6.2510687218535645
TrID:	Win32 Executable (generic) a (10002005/4) 99.15% Win32 Executable Microsoft Visual Basic 6 (82127/2) 0.81% Generic Win/DOS Executable (2004/3) 0.02% DOS Executable Generic (2002/1) 0.02% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	Kapitu.exe
File size:	102400
MD5:	149b6bd6b0d3dd2b0fbb111632d59fcc
SHA1:	33cdaa42e1a5c1fad1aa4f38dd9ad6ea75113aa7
SHA256:	b622dbe802148305104ef456835748d2fc0d8edeffa64787c43c78bcb1914b2f
SHA512:	d2783ef1112d892b9501cf0e8ce6e74277d0d55d0eb9cd3841802381682bc1e7631389c24a2f6f297a82f406fdb6c942ae7987df96f227d00e73ebbc6d01c51f
SSDEEP:	1536:RMigxMWRwt1aaGhFNEAAF9vq/eVlQ4F5kOrpdh/:aicCQhFWfFqWlQa19d1
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......u...1...1...1.......0...~...0.......0...Rich1...........PE..L......G.................P...0...............`....@................

File Icon


Icon Hash:	78f8d6d4ac88d0e2

Static PE Info

General
Entrypoint:	0x4012d4
Entrypoint Section:	.text
Digitally signed:	false
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, RELOCS_STRIPPED
DLL Characteristics:
Time Stamp:	0x47939ED5 [Sun Jan 20 19:19:49 2008 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	1eb0aaa4f15bbd841e91215ce68e26d2

Entrypoint Preview

Instruction
push 00413AA8h
call 00007FC6A8EBC425h
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
xor byte ptr [eax], al
add byte ptr [eax], al
cmp byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
scasd
cmp dword ptr [eax], esi
fmulp st(7), st(0)
and eax, 3D1FA54Eh
inc edi
push cs
pop edx
cmp bh, byte ptr [ebx+00000000h]
add byte ptr [eax], al
add dword ptr [eax], eax
add byte ptr [eax], al
add byte ptr [eax], al
loopne 00007FC6A8EBC41Ah
inc edx
add dl, byte ptr [ebx+54h]
push esi
push ebx
push ebp
add byte ptr [ecx+00h], al
add byte ptr [eax], al
add byte ptr [eax], al
dec esp
xor dword ptr [eax], eax
add dword ptr [esi+eax*8], esp
cwde
outsb
pop esp

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x15174	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x17000	0x1cb8	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x0	0x0
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x228	0x20
IMAGE_DIRECTORY_ENTRY_IAT	0x1000	0xdc	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0x14548	0x15000	False	0.564581008185	data	6.64813091297	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x16000	0x9f4	0x1000	False	0.00634765625	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x17000	0x1cb8	0x2000	False	0.264526367188	data	3.48286092723	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
CUSTOM	0x18b7a	0x13e	MS Windows icon resource - 1 icon, 16x16, 16 colors	English	United States
CUSTOM	0x185fc	0x57e	MS Windows icon resource - 1 icon, 16x16, 8 bits/pixel	English	United States
CUSTOM	0x1807e	0x57e	MS Windows icon resource - 1 icon, 16x16, 8 bits/pixel	English	United States
CUSTOM	0x17f40	0x13e	MS Windows icon resource - 1 icon, 16x16, 16 colors	English	United States
RT_ICON	0x178d8	0x668	dBase IV DBT of `.DBF, block length 1536, next free block index 40, next free block 252, next used block 65280
RT_ICON	0x175f0	0x2e8	data
RT_ICON	0x174c8	0x128	GLS_BINARY_LSB_FIRST
RT_GROUP_ICON	0x17498	0x30	data
RT_VERSION	0x17230	0x268	MS Windows COFF Motorola 68000 object file	English	United States

Imports

DLL

Import

MSVBVM60.DLL

_CIcos, _adj_fptan, __vbaFreeVar, __vbaStrVarMove, __vbaFreeVarList, _adj_fdiv_m64, _adj_fprem1, __vbaHresultCheckObj, _adj_fdiv_m32, __vbaAryDestruct, __vbaOnError, __vbaObjSet, _adj_fdiv_m16i, _adj_fdivr_m16i, __vbaFpR8, _CIsin, __vbaChkstk, EVENT_SINK_AddRef, __vbaGenerateBoundsError, __vbaStrCmp, _adj_fpatan, __vbaRedim, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, _CIlog, __vbaErrorOverflow, __vbaNew2, _adj_fdiv_m32i, _adj_fdivr_m32i, _adj_fdivr_m32, _adj_fdiv_r, __vbaFpI4, _CIatan, __vbaStrMove, _allmul, _CItan, _CIexp, __vbaFreeObj, __vbaFreeStr

Version Infos

Description	Data
Translation	0x0409 0x04b0
InternalName	Kapitu
FileVersion	1.00
CompanyName	CelRox
Comments	CelRox
ProductName	CelRox
ProductVersion	1.00
FileDescription	CelRox
OriginalFilename	Kapitu.exe

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Network Behavior

Network Port Distribution

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Sep 27, 2021 14:59:13.564524889 CEST	57459	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:13.577341080 CEST	53	57459	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:36.952847958 CEST	57875	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:36.975413084 CEST	53	57875	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:40.233134031 CEST	54154	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:40.246500015 CEST	53	54154	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:40.305094004 CEST	52806	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:40.375760078 CEST	53	52806	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:41.102195024 CEST	53910	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:41.182041883 CEST	53	53910	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:41.659959078 CEST	64021	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:41.674022913 CEST	53	64021	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:42.120876074 CEST	60784	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:42.185456991 CEST	53	60784	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:42.550785065 CEST	51143	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:42.627079010 CEST	53	51143	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:42.979408979 CEST	56009	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:42.992172956 CEST	53	56009	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:43.367402077 CEST	59026	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:43.446213007 CEST	53	59026	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:44.085958958 CEST	49572	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:44.099349022 CEST	53	49572	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:44.820997000 CEST	60823	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:44.842494011 CEST	53	60823	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:45.256865025 CEST	52130	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:45.342518091 CEST	53	52130	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:45.614876986 CEST	55102	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:45.643501997 CEST	53	55102	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:47.146346092 CEST	56236	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:47.178746939 CEST	53	56236	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:50.254987001 CEST	56527	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:50.274437904 CEST	53	56527	8.8.8.8	192.168.2.3
Sep 27, 2021 14:59:57.740142107 CEST	49559	53	192.168.2.3	8.8.8.8
Sep 27, 2021 14:59:57.772836924 CEST	53	49559	8.8.8.8	192.168.2.3
Sep 27, 2021 15:00:12.596714020 CEST	52650	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:00:12.623950958 CEST	53	52650	8.8.8.8	192.168.2.3
Sep 27, 2021 15:00:36.545851946 CEST	63297	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:00:36.559715986 CEST	53	63297	8.8.8.8	192.168.2.3
Sep 27, 2021 15:00:41.422981024 CEST	58361	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:00:41.460274935 CEST	53	58361	8.8.8.8	192.168.2.3
Sep 27, 2021 15:01:03.556252956 CEST	53615	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:01:03.569013119 CEST	53	53615	8.8.8.8	192.168.2.3
Sep 27, 2021 15:01:19.378797054 CEST	50728	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:01:19.395036936 CEST	53	50728	8.8.8.8	192.168.2.3
Sep 27, 2021 15:01:30.608416080 CEST	53777	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:01:30.622157097 CEST	53	53777	8.8.8.8	192.168.2.3
Sep 27, 2021 15:01:42.810854912 CEST	57106	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:01:42.846976995 CEST	53	57106	8.8.8.8	192.168.2.3
Sep 27, 2021 15:01:48.951628923 CEST	60352	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:01:48.985234022 CEST	53	60352	8.8.8.8	192.168.2.3
Sep 27, 2021 15:02:04.829898119 CEST	56773	53	192.168.2.3	8.8.8.8
Sep 27, 2021 15:02:04.850514889 CEST	53	56773	8.8.8.8	192.168.2.3

Code Manipulations

Statistics

System Behavior

Analysis Process: Kapitu.exe PID: 6004 Parent PID: 5272

General

Start time:	14:58:52
Start date:	27/09/2021
Path:	C:\Users\user\Desktop\Kapitu.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\Kapitu.exe'
Imagebase:	0x400000
File size:	102400 bytes
MD5 hash:	149B6BD6B0D3DD2B0FBB111632D59FCC
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Yara matches:	Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000000.00000002.824313775.0000000002150000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	low

Disassembly

Code Analysis

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Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	API monitoring, DLL monitoring, File monitoring, Named Pipes, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Binary file metadata, Email gateway, Environment variable, File monitoring, Malware reverse engineering, Network intrusion detection system, Network protocol analysis, Process command-line parameters, Process monitoring, Process use of network, SSL/TLS inspection, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use methods of capturing user input to obtain credentials or collect information. During normal system usage, users often provide credentials to various different locations, such as login pages/portals or system dialog boxes. Input capture mechanisms may be transparent to the user (e.g. Credential API Hooking ) or rely on deceiving the user into providing input into what they believe to be a genuine service (e.g. Web Portal Capture ).
Tactics:	Collection, Credential Access
Data Sources:	API monitoring, Binary file metadata, DLL monitoring, Kernel drivers, Loaded DLLs, PowerShell logs, Process command-line parameters, Process monitoring, User interface, Windows Registry, Windows event logs
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, File monitoring, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, Azure AD, GCP, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software/applications running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	API monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	AWS CloudTrail logs, Azure activity logs, Process command-line parameters, Process monitoring, Stackdriver logs
Platforms:	AWS, Azure, GCP, Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may compress and/or encrypt data that is collected prior to exfiltration. Compressing the data can help to obfuscate the collected data and minimize the amount of data sent over the network. Encryption can be used to hide information that is being exfiltrated from detection or make exfiltration less conspicuous upon inspection by a defender.
Tactics:	Collection
Data Sources:	Binary file metadata, File monitoring, Process command-line parameters, Process monitoring
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ a known encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Despite the use of a secure algorithm, these implementations may be vulnerable to reverse engineering if secret keys are encoded and/or generated within malware samples/configuration files.
Tactics:	Command and Control
Data Sources:	Malware reverse engineering, Netflow/Enclave netflow, Packet capture, Process monitoring, Process use of network, SSL/TLS inspection
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	DNS records, Netflow/Enclave netflow, Network protocol analysis, Packet capture, Process monitoring, Process use of network
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Warning!

Windows Analysis Report Kapitu.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Threatname: GuLoader

Yara Overview

Memory Dumps

Sigma Overview

Jbx Signature Overview

AV Detection:

Compliance:

Networking:

Key, Mouse, Clipboard, Microphone and Screen Capturing:

System Summary:

Data Obfuscation:

Hooking and other Techniques for Hiding and Protection:

Malware Analysis System Evasion:

Anti Debugging:

HIPS / PFW / Operating System Protection Evasion:

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

Contacted IPs

General Information

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASN

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Static PE Info

General

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Version Infos

Possible Origin

Network Behavior

Network Port Distribution

UDP Packets

Code Manipulations

Statistics

System Behavior

Analysis Process: Kapitu.exe PID: 6004 Parent PID: 5272

General

Disassembly

Code Analysis