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Windows Analysis Report REQUIREMENT.exe

Overview

General Information

Sample Name:	REQUIREMENT.exe
Analysis ID:	502075
MD5:	fb70ff484021669624233d0fbd77ec6a
SHA1:	6820b13631967663ec2637c43c828468633051fd
SHA256:	2b40757a6763aa725d86426ce3cd16fcf1380a9152837d4fbe5e5b085710054c
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)

Tries to detect virtualization through RDTSC time measurements

C2 URLs / IPs found in malware configuration

Uses 32bit PE files

Contains functionality to call native functions

Sample file is different than original file name gathered from version info

Contains functionality to read the PEB

Program does not show much activity (idle)

Uses code obfuscation techniques (call, push, ret)

Contains functionality for execution timing, often used to detect debuggers

Abnormal high CPU Usage

Detected potential crypto function

Classification

Process Tree

System is w10x64

REQUIREMENT.exe (PID: 6976 cmdline: 'C:\Users\user\Desktop\REQUIREMENT.exe' MD5: FB70FF484021669624233D0FBD77EC6A)

cleanup

Malware Configuration

Threatname: GuLoader

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

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
00000000.00000002.1188115207.0000000002C50000.00000040.00000001.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: 00000000.00000002.1188115207.0000000002C50000.00000040.00000001.sdmp

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

Source: REQUIREMENT.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=downloa

Source: REQUIREMENT.exe

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

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

Code function: 0_2_02C576AD NtAllocateVirtualMemory,

Source: REQUIREMENT.exe, 00000000.00000000.665138036.0000000000417000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameStablerne.exe vs REQUIREMENT.exe
Source: REQUIREMENT.exe	Binary or memory string: OriginalFilenameStablerne.exe vs REQUIREMENT.exe

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

Process Stats: CPU usage > 98%

Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_004016F9
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00401746
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_0040150A
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C576AD
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5BBCC
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5AAF9
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C55A93
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C558A9
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5A8BF
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C59A51
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C57A08
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C55E2B
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C573C1
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C56185
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C59D8D
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C55F15
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C55F11

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

File created: C:\Users\user\AppData\Local\Temp\~DF487C68D7539D4AB0.TMP

Jump to behavior

Source: REQUIREMENT.exe

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

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

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

Source: C:\Users\user\Desktop\REQUIREMENT.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: 00000000.00000002.1188115207.0000000002C50000.00000040.00000001.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00404C7B push eax; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00404619 push esp; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00405035 push ss; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00403ADA push ecx; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_0040528D push esp; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_004044B5 push eax; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00403B4B push ebp; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00405775 push eax; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_00404F2B push edi; iretd
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C542C3 push eax; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C526CA push FFFFFF81h; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C540EC push eax; retn 0010h
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5209B push ecx; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C53E65 pushad ; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5A1C7 push eax; retf B6D8h
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C513C7 push eax; retf
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C50792 push ds; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C54B54 push ecx; ret
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C54125 push eax; retn 0010h

Source: C:\Users\user\Desktop\REQUIREMENT.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Process information set: NOOPENFILEERRORBOX
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Process information set: NOOPENFILEERRORBOX

Malware Analysis System Evasion:

Tries to detect virtualization through RDTSC time measurements

Show sources

Source: C:\Users\user\Desktop\REQUIREMENT.exe	RDTSC instruction interceptor: First address: 000000000040F697 second address: 000000000040F697 instructions: 0x00000000 rdtsc 0x00000002 pushfd 0x00000003 popfd 0x00000004 cmp ecx, 0Fh 0x00000007 popad 0x00000008 wait 0x00000009 mfence 0x0000000c dec edi 0x0000000d wait 0x0000000e wait 0x0000000f cmp edi, 00000000h 0x00000012 jne 00007F6D0C3927BDh 0x00000014 pushfd 0x00000015 popfd 0x00000016 cmp ecx, 000000CAh 0x0000001c pushad 0x0000001d cmp eax, 000000F0h 0x00000022 cmp eax, 02h 0x00000025 rdtsc
Source: C:\Users\user\Desktop\REQUIREMENT.exe	RDTSC instruction interceptor: First address: 0000000002C5A0C8 second address: 0000000002C5A0C8 instructions: 0x00000000 rdtsc 0x00000002 mov eax, AA54BF9Eh 0x00000007 xor eax, 18F07B17h 0x0000000c xor eax, 2300AFC3h 0x00000011 xor eax, 91A46B4Bh 0x00000016 cpuid 0x00000018 popad 0x00000019 cmp dl, 00000034h 0x0000001c call 00007F6D0C93C838h 0x00000021 lfence 0x00000024 mov edx, 246E52A3h 0x00000029 xor edx, 20DEFFF8h 0x0000002f xor edx, 4C51A0A7h 0x00000035 xor edx, 371F0DE8h 0x0000003b mov edx, dword ptr [edx] 0x0000003d lfence 0x00000040 jmp 00007F6D0C93C876h 0x00000042 cmp ecx, eax 0x00000044 cmp bh, ah 0x00000046 ret 0x00000047 sub edx, esi 0x00000049 ret 0x0000004a add edi, edx 0x0000004c dec dword ptr [ebp+000000F8h] 0x00000052 cmp dword ptr [ebp+000000F8h], 00000000h 0x00000059 jne 00007F6D0C93C817h 0x0000005b test bx, 23AAh 0x00000060 call 00007F6D0C93C874h 0x00000065 call 00007F6D0C93C85Ch 0x0000006a lfence 0x0000006d mov edx, 246E52A3h 0x00000072 xor edx, 20DEFFF8h 0x00000078 xor edx, 4C51A0A7h 0x0000007e xor edx, 371F0DE8h 0x00000084 mov edx, dword ptr [edx] 0x00000086 lfence 0x00000089 jmp 00007F6D0C93C876h 0x0000008b cmp ecx, eax 0x0000008d cmp bh, ah 0x0000008f ret 0x00000090 mov esi, edx 0x00000092 pushad 0x00000093 rdtsc

Source: all processes

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

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

Code function: 0_2_02C5A0C0 rdtsc

Anti Debugging:

Found potential dummy code loops (likely to delay analysis)

Show sources

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

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

Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C594D3 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C5AAF9 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C57244 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\REQUIREMENT.exe	Code function: 0_2_02C59C43 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: C:\Users\user\Desktop\REQUIREMENT.exe

Code function: 0_2_02C5A0C0 rdtsc

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

Code function: 0_2_02C5BBCC RtlAddVectoredExceptionHandler,

Source: REQUIREMENT.exe, 00000000.00000002.1187775011.0000000000D80000.00000002.00020000.sdmp	Binary or memory string: Program Manager
Source: REQUIREMENT.exe, 00000000.00000002.1187775011.0000000000D80000.00000002.00020000.sdmp	Binary or memory string: Shell_TrayWnd
Source: REQUIREMENT.exe, 00000000.00000002.1187775011.0000000000D80000.00000002.00020000.sdmp	Binary or memory string: Progman
Source: REQUIREMENT.exe, 00000000.00000002.1187775011.0000000000D80000.00000002.00020000.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	OS Credential Dumping	Security Software Discovery21	Remote Services	Archive Collected Data1	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	Data from Removable Media	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 Discovery11	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

No Antivirus matches

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:	502075
Start date:	13.10.2021
Start time:	15:36:14
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 7m 23s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	REQUIREMENT.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:	15
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: 35.8% (good quality ratio 16.8%) Quality average: 28.9% Quality standard deviation: 35.7%
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): BackgroundTransferHost.exe, backgroundTaskHost.exe, svchost.exe, wuapihost.exe Excluded IPs from analysis (whitelisted): 20.82.210.154, 23.203.141.148, 20.50.102.62, 20.54.110.249, 40.112.88.60, 2.20.178.24, 2.20.178.33 Excluded domains from analysis (whitelisted): displaycatalog-rp-europe.md.mp.microsoft.com.akadns.net, neu-displaycatalogrp.frontdoor.bigcatalog.commerce.microsoft.com, ris-prod.trafficmanager.net, asf-ris-prod-neu.northeurope.cloudapp.azure.com, store-images.s-microsoft.com-c.edgekey.net, iris-de-prod-azsc-neu-b.northeurope.cloudapp.azure.com, iris-de-prod-azsc-uks.uksouth.cloudapp.azure.com, a1449.dscg2.akamai.net, arc.msn.com, ris.api.iris.microsoft.com, e12564.dspb.akamaiedge.net, consumer-displaycatalogrp-aks2aks-europe.md.mp.microsoft.com.akadns.net, store-images.s-microsoft.com, arc.trafficmanager.net, displaycatalog.mp.microsoft.com, img-prod-cms-rt-microsoft-com.akamaized.net, displaycatalog-rp.md.mp.microsoft.com.akadns.net

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):	5.945342837977056
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:	REQUIREMENT.exe
File size:	102400
MD5:	fb70ff484021669624233d0fbd77ec6a
SHA1:	6820b13631967663ec2637c43c828468633051fd
SHA256:	2b40757a6763aa725d86426ce3cd16fcf1380a9152837d4fbe5e5b085710054c
SHA512:	57bcac78a12191df511dbb96f6d494096b56f269c3d009f373993574ff529698239bcc886dcc10ef162ef0c1d9ac0a4c6008813dc88becf4db8c700c35c0f47e
SSDEEP:	1536:tWD8iCOQRnNBM9rJvWMyWiWjkulM6AnhmXDLZBD:tW4iCOING9rAMy+M6KYB
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$........i.......................*..............Rich....................PE..L....&.Q.................P...0......x........`....@........

File Icon


Icon Hash:	69e1c892f664c884

Static PE Info

General
Entrypoint:	0x401378
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:	0x51B926D4 [Thu Jun 13 01:56:36 2013 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:	669316531b5190f02843878b6ed87394

Entrypoint Preview

Instruction
push 00410DDCh
call 00007F6D0C979F45h
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
inc eax
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [edx-04h], bh
js 00007F6D0C979F7Dh
std
test byte ptr [ebp+559B9F4Eh], bl
out 8Eh, al
mov ds, word ptr [00000000h]
add byte ptr [eax], al
add dword ptr [eax], eax
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
push ebx
inc ecx
inc esi
push esp
push ebx
push eax
dec esi
inc esp
dec ecx
dec esi
inc edi
inc ebp
dec esi
push ebx
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
dec esp
xor dword ptr [eax], eax
cmp byte ptr [edx-25h], ch
movsb
dec ebp

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x15b34	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x17000	0x1cb2	.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	0x230	0x20
IMAGE_DIRECTORY_ENTRY_IAT	0x1000	0x134	.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	0x14fe8	0x15000	False	0.514962332589	data	6.38314027792	IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_READ
.data	0x16000	0xd0c	0x1000	False	0.00634765625	data	0.0	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_WRITE, IMAGE_SCN_MEM_READ
.rsrc	0x17000	0x1cb2	0x2000	False	0.348388671875	data	3.76635467806	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
CUSTOM	0x189b4	0x2fe	MS Windows icon resource - 1 icon, 32x32, 16 colors	English	United States
CUSTOM	0x180f6	0x8be	MS Windows icon resource - 1 icon, 32x32, 8 bits/pixel	English	United States
CUSTOM	0x17df8	0x2fe	MS Windows icon resource - 1 icon, 32x32, 16 colors, 4 bits/pixel	English	United States
RT_ICON	0x17550	0x8a8	data
RT_GROUP_ICON	0x1753c	0x14	data
RT_VERSION	0x171a0	0x39c	data	English	United States

Imports

DLL

Import

MSVBVM60.DLL

_CIcos, _adj_fptan, __vbaVarMove, __vbaFreeVar, __vbaStrVarMove, __vbaFreeVarList, _adj_fdiv_m64, _adj_fprem1, __vbaSetSystemError, __vbaHresultCheckObj, _adj_fdiv_m32, _adj_fdiv_m16i, _adj_fdivr_m16i, __vbaVarTstLt, _CIsin, __vbaChkstk, EVENT_SINK_AddRef, __vbaStrCmp, DllFunctionCall, _adj_fpatan, EVENT_SINK_Release, _CIsqrt, EVENT_SINK_QueryInterface, __vbaExceptHandler, _adj_fprem, _adj_fdivr_m64, __vbaFPException, __vbaStrVarVal, __vbaDateVar, _CIlog, __vbaErrorOverflow, __vbaFileOpen, __vbaNew2, _adj_fdiv_m32i, _adj_fdivr_m32i, __vbaStrCopy, __vbaFreeStrList, _adj_fdivr_m32, _adj_fdiv_r, __vbaLateMemCall, __vbaVarAdd, __vbaStrToAnsi, __vbaVarDup, __vbaFpI4, _CIatan, __vbaStrMove, _allmul, __vbaLateIdSt, _CItan, _CIexp, __vbaFreeStr, __vbaFreeObj

Version Infos

Description	Data
Translation	0x0409 0x04b0
LegalCopyright	Collides Systems, Inc.
InternalName	Stablerne
FileVersion	4.00
CompanyName	Collides Systems, Inc.
LegalTrademarks	Collides Systems, Inc.
Comments	Collides Systems, Inc.
ProductName	Collides Systems, Inc.
ProductVersion	4.00
FileDescription	Collides Systems, Inc.
OriginalFilename	Stablerne.exe

Possible Origin

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

Network Behavior

No network behavior found

Code Manipulations

Statistics

System Behavior

Analysis Process: REQUIREMENT.exe PID: 6976 Parent PID: 900

General

Start time:	15:37:10
Start date:	13/10/2021
Path:	C:\Users\user\Desktop\REQUIREMENT.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\REQUIREMENT.exe'
Imagebase:	0x400000
File size:	102400 bytes
MD5 hash:	FB70FF484021669624233D0FBD77EC6A
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Yara matches:	Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000000.00000002.1188115207.0000000002C50000.00000040.00000001.sdmp, Author: Joe Security
Reputation:	low

Disassembly

Code Analysis

Reset < >

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 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 REQUIREMENT.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:

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

Code Manipulations

Statistics

System Behavior

Analysis Process: REQUIREMENT.exe PID: 6976 Parent PID: 900

General

Disassembly

Code Analysis