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Windows Analysis Report GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Overview

General Information

Sample Name:	GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe
Analysis ID:	491600
MD5:	991bee5a9edd18a183c900b7edeccefe
SHA1:	18189c5a9d3ab005df5426494e2016a5d64b8c72
SHA256:	e3c94531505c4a4d5bb35bb62e773676f7e9ab522111d930f02c3144c971414d
Tags:	exeguloader
Infos:
Most interesting Screenshot:

Detection

GuLoader

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

Signatures

Found malware configuration

Multi AV Scanner detection for submitted file

Yara detected GuLoader

C2 URLs / IPs found in malware configuration

Uses 32bit PE files

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

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)

Contains functionality for execution timing, often used to detect debuggers

Detected potential crypto function

Classification

Process Tree

System is w10x64

GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe (PID: 6336 cmdline: 'C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe' MD5: 991BEE5A9EDD18A183C900B7EDECCEFE)

cleanup

Malware Configuration

Threatname: GuLoader

{"Payload URL": "https://drive.google.com/uc?export=download&id=1ycJKs"}

Yara Overview

Memory Dumps

Source	Rule	Description	Author	Strings
00000001.00000002.505045374.0000000002A30000.00000040.00000001.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: 00000001.00000002.505045374.0000000002A30000.00000040.00000001.sdmp

Malware Configuration Extractor: GuLoader {"Payload URL": "https://drive.google.com/uc?export=download&id=1ycJKs"}

Multi AV Scanner detection for submitted file

Show sources

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Virustotal: Detection: 27%			Perma Link
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	ReversingLabs: Detection: 11%

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.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=download&id=1ycJKs

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

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

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000000.237743772.0000000000417000.00000002.00020000.sdmp	Binary or memory string: OriginalFilenameKios2.exe vs GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Binary or memory string: OriginalFilenameKios2.exe vs GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Static PE information: Resource name: RT_ICON type: GLS_BINARY_LSB_FIRST

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A37233
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A37403

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Virustotal: Detection: 27%
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	ReversingLabs: Detection: 11%

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

File created: C:\Users\user\AppData\Local\Temp\~DF2528AA0FB36E21C6.TMP

Jump to behavior

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

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

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

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

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

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

Source: classification engine

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

Data Obfuscation:

Yara detected GuLoader

Show sources

Source: Yara match

File source: 00000001.00000002.505045374.0000000002A30000.00000040.00000001.sdmp, type: MEMORY

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_004055C5 push eax; retf
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_00402ACE push ecx; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_004066FC push ebx; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A320A4 push esp; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A36288 push cs; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A350E2 push ebp; retf
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A33EF3 push ss; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A344FF push cs; retf
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A36215 push 89000002h; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A32219 push ss; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A3626F push cs; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A3225C push ss; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A321A7 push ss; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A363BB push ss; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A363E9 push ss; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A36312 push cs; iretd
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A32565 push ds; ret
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A34576 push cs; retf

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Process information set: NOOPENFILEERRORBOX

Source: all processes

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

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Code function: 1_2_02A39850 rdtsc

Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A3CC88 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A395F7 mov eax, dword ptr fs:[00000030h]
Source: C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	Code function: 1_2_02A3D33B 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\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe

Code function: 1_2_02A39850 rdtsc

Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000002.504865617.0000000000C60000.00000002.00020000.sdmp	Binary or memory string: Shell_TrayWnd
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000002.504865617.0000000000C60000.00000002.00020000.sdmp	Binary or memory string: Progman
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000002.504865617.0000000000C60000.00000002.00020000.sdmp	Binary or memory string: SProgram Managerl
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000002.504865617.0000000000C60000.00000002.00020000.sdmp	Binary or memory string: Shell_TrayWnd,
Source: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe, 00000001.00000002.504865617.0000000000C60000.00000002.00020000.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	Process Injection1	OS Credential Dumping	Security Software Discovery1	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	Obfuscated Files or Information1	LSASS Memory	Process Discovery1	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 Information	Security Account Manager	System Information 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

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
GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	28%	Virustotal		Browse
GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe	11%	ReversingLabs

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:	491600
Start date:	27.09.2021
Start time:	18:31:27
Joe Sandbox Product:	CloudBasic
Overall analysis duration:	0h 5m 32s
Hypervisor based Inspection enabled:	false
Report type:	light
Sample file name:	GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.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:	23
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.winEXE@1/0@0/0
EGA Information:	Failed
HDC Information:	Successful, ratio: 22.6% (good quality ratio 9.8%) Quality average: 26.5% Quality standard deviation: 34.9%
HCA Information:	Failed
Cookbook Comments:	Adjust boot time Enable AMSI Found application associated with file extension: .exe
Warnings:	Show All Exclude process from analysis (whitelisted): MpCmdRun.exe, BackgroundTransferHost.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe Excluded IPs from analysis (whitelisted): 23.54.113.53, 95.100.54.203, 20.82.209.183, 23.0.174.200, 23.0.174.185, 40.112.88.60, 23.10.249.26, 23.10.249.43, 20.82.210.154 Excluded domains from analysis (whitelisted): iris-de-prod-azsc-neu.northeurope.cloudapp.azure.com, fs.microsoft.com, wu-shim.trafficmanager.net, ris-prod.trafficmanager.net, asf-ris-prod-neu.northeurope.cloudapp.azure.com, store-images.s-microsoft.com-c.edgekey.net, e1723.g.akamaiedge.net, ctldl.windowsupdate.com, iris-de-prod-azsc-neu-b.northeurope.cloudapp.azure.com, a767.dspw65.akamai.net, fs-wildcard.microsoft.com.edgekey.net, fs-wildcard.microsoft.com.edgekey.net.globalredir.akadns.net, a1449.dscg2.akamai.net, arc.msn.com, download.windowsupdate.com.edgesuite.net, ris.api.iris.microsoft.com, e12564.dspb.akamaiedge.net, store-images.s-microsoft.com, arc.trafficmanager.net, img-prod-cms-rt-microsoft-com.akamaized.net, prod.fs.microsoft.com.akadns.net Not all processes where analyzed, report is missing behavior information

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):	6.300769509172339
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:	GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe
File size:	102400
MD5:	991bee5a9edd18a183c900b7edeccefe
SHA1:	18189c5a9d3ab005df5426494e2016a5d64b8c72
SHA256:	e3c94531505c4a4d5bb35bb62e773676f7e9ab522111d930f02c3144c971414d
SHA512:	49a38be3d5d5fe4cdbb765c95ab455b1584e9ad7f28165ffe25a08f9fb9fa56a41354bdac74b77e42fe0ffdd64165d85b58f3817d5c4654e9a429de0be3f9109
SSDEEP:	1536:q1W8dYk9oHqzOMTkjBTJGUByj1x+amIBFOFWFJfc8b12r/:cGkRKB9JIjP+G4YcE27
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......u...1...1...1.......0...~...0.......0...Rich1...........PE..L...=.CV.................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:	0x5643B13D [Wed Nov 11 21:21:01 2015 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 00007F18D0AA83E5h
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
mov eax, 3817F674h
inc esi
inc esi
movsb
inc edi
jl 00007F18D0AA83DDh
inc edx
sar dword ptr [ecx-38h], 1
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add dword ptr [eax], eax
add byte ptr [eax], al
add byte ptr [eax], al
or cl, ch
adc dword ptr [ebx], eax
dec ebx
popad
jc 00007F18D0AA8456h
imul esi, dword ptr [edi], 00000000h
add byte ptr [eax], al
dec esp
xor dword ptr [eax], eax
add ebp, esp
sal dword ptr [ebp+0F667C11h], cl
inc eax
nop
stosb
rol al, cl
mov bl, 9Eh
jc 00007F18D0AA8444h
lea ebx, dword ptr [eax]
push esp
cmpsb
cmpsd
rol byte ptr [edi-78h], 00000000h
outsd
jp 00007F18D0AA842Dh
push ecx
cdq
cmp cl, byte ptr [edi-53h]
xor ebx, dword ptr [ecx-48EE309Ah]
or al, 00h
stosb
add byte ptr [eax-2Dh], ah
xchg eax, ebx
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al
add byte ptr [eax], al

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x15184	0x28	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x17000	0x1cb0	.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	0x14558	0x15000	False	0.567685081845	data	6.68912233	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	0x1cb0	0x2000	False	0.263793945312	data	3.45953582589	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country
CUSTOM	0x18b72	0x13e	MS Windows icon resource - 1 icon, 16x16, 16 colors	English	United States
CUSTOM	0x185f4	0x57e	MS Windows icon resource - 1 icon, 16x16, 8 bits/pixel	English	United States
CUSTOM	0x18076	0x57e	MS Windows icon resource - 1 icon, 16x16, 8 bits/pixel	English	United States
CUSTOM	0x17f38	0x13e	MS Windows icon resource - 1 icon, 16x16, 16 colors	English	United States
RT_ICON	0x178d0	0x668	dBase IV DBT of `.DBF, block length 1536, next free block index 40, next free block 252, next used block 65280
RT_ICON	0x175e8	0x2e8	data
RT_ICON	0x174c0	0x128	GLS_BINARY_LSB_FIRST
RT_GROUP_ICON	0x17490	0x30	data
RT_VERSION	0x17230	0x260	data	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	Kios2
FileVersion	1.00
CompanyName	CelRox
Comments	CelRox
ProductName	CelRox
ProductVersion	1.00
FileDescription	CelRox
OriginalFilename	Kios2.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 18:32:17.286511898 CEST	65307	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:32:17.306071043 CEST	53	65307	8.8.8.8	192.168.2.5
Sep 27, 2021 18:32:36.433238983 CEST	64344	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:32:36.496553898 CEST	53	64344	8.8.8.8	192.168.2.5
Sep 27, 2021 18:32:50.644388914 CEST	62060	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:32:50.671226978 CEST	53	62060	8.8.8.8	192.168.2.5
Sep 27, 2021 18:33:09.613759995 CEST	61805	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:33:09.632030010 CEST	53	61805	8.8.8.8	192.168.2.5
Sep 27, 2021 18:33:13.620054007 CEST	54795	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:33:13.646682024 CEST	53	54795	8.8.8.8	192.168.2.5
Sep 27, 2021 18:33:28.273520947 CEST	49557	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:33:28.309051991 CEST	53	49557	8.8.8.8	192.168.2.5
Sep 27, 2021 18:33:28.679156065 CEST	61733	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:33:28.729876995 CEST	53	61733	8.8.8.8	192.168.2.5
Sep 27, 2021 18:33:33.212605000 CEST	65447	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:33:33.232284069 CEST	53	65447	8.8.8.8	192.168.2.5
Sep 27, 2021 18:34:08.948594093 CEST	52441	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:34:08.976679087 CEST	53	52441	8.8.8.8	192.168.2.5
Sep 27, 2021 18:34:11.399032116 CEST	62176	53	192.168.2.5	8.8.8.8
Sep 27, 2021 18:34:11.425760031 CEST	53	62176	8.8.8.8	192.168.2.5

Code Manipulations

Statistics

System Behavior

Analysis Process: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe PID: 6336 Parent PID: 5768

General

Start time:	18:32:22
Start date:	27/09/2021
Path:	C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe
Wow64 process (32bit):	true
Commandline:	'C:\Users\user\Desktop\GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe'
Imagebase:	0x400000
File size:	102400 bytes
MD5 hash:	991BEE5A9EDD18A183C900B7EDECCEFE
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	Visual Basic
Yara matches:	Rule: JoeSecurity_GuLoader_2, Description: Yara detected GuLoader, Source: 00000001.00000002.505045374.0000000002A30000.00000040.00000001.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 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 GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.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

Network Port Distribution

UDP Packets

Code Manipulations

Statistics

System Behavior

Analysis Process: GRUPO MARI#U00d1O OBRAS Y SERVICIOS, SL Oferta 2709213390.exe PID: 6336 Parent PID: 5768

General

Disassembly

Code Analysis