MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503
SHA3-384 hash: 125871a9bfaee8584d19e24b53d5201e22e0369ba691a7253b72a7e1920002c73fc235a1340ff4f06b5ae0e0e455c1c4
SHA1 hash: b98819322bd2448972f28703e9abef734d679292
MD5 hash: aea1734f0f47ad1bd4be38ed8aa381d3
humanhash: tennis-papa-october-beer
File name:EXP263 Grupa Decora ARKU8341370 1x40.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:485'224 bytes
First seen:2024-05-06 11:14:53 UTC
Last seen:2024-05-06 12:24:42 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (115 x GuLoader, 54 x Formbook, 40 x VIPKeylogger)
ssdeep 6144:VXFKo5xWzMenDLsk2FvdyssghsGxG/f7QbZoILLmJ3kwawaeYqrK8EINaQeofcqN:VXYnD1wsh/lSwlrK6aQff3wlLO
TLSH T1E9A4CD476A40C536FEB31970CE62D2F96675ADD0FA52460F72E0BE1FB8352507A3122B
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 43e0e0c8d971b3c5 (2 x RemcosRAT, 2 x GuLoader)
Reporter Anonymous
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Washaway
Issuer:Washaway
Algorithm:sha256WithRSAEncryption
Valid from:2024-03-02T04:06:10Z
Valid to:2027-03-02T04:06:10Z
Serial number: 65449c9fae2792792f379d33eb9efe78f8f19445
Thumbprint Algorithm:SHA256
Thumbprint: 5c4a5433cd33c6d9f0855576b848cd7cbe7dd6bd423b572e9b9f23ca2156ac27
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
346
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503.exe
Verdict:
Malicious activity
Analysis date:
2024-05-06 11:15:50 UTC
Tags:
rat remcos evasion keylogger
Link:
https://app.any.run/tasks/3dac3635-0f60-4912-a575-a60361a2f455

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.3254.32424.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a recently created process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/6638bbbb1c9796b80ab3b7b3/reports/906a4209-8bd5-4899-9fa6-8b765849946d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/db93eebf-3434-44d6-bd3c-0b807c1cc140
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1436701
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Powershell drops PE file
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Wab/Wabmig Unusual Parent Or Child Processes
Snort IDS alert for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1436701 Sample: EXP263  Grupa Decora  ARKU8... Startdate: 06/05/2024 Architecture: WINDOWS Score: 100 46 learfo55ozj02.duckdns.org 2->46 48 ricohltd.top 2->48 50 geoplugin.net 2->50 58 Snort IDS alert for network traffic 2->58 60 Multi AV Scanner detection for domain / URL 2->60 62 Found malware configuration 2->62 66 14 other signatures 2->66 10 EXP263  Grupa Decora  ARKU8341370  1x40.exe 1 35 2->10         started        signatures3 64 Uses dynamic DNS services 46->64 process4 file5 42 C:\Users\user\AppData\...\gastrogenital.Fel, ASCII 10->42 dropped 74 Suspicious powershell command line found 10->74 14 powershell.exe 20 10->14         started        signatures6 process7 file8 44 EXP263  Grupa Deco...KU8341370  1x40.exe, PE32 14->44 dropped 82 Obfuscated command line found 14->82 84 Writes to foreign memory regions 14->84 86 Found suspicious powershell code related to unpacking or dynamic code loading 14->86 88 2 other signatures 14->88 18 wab.exe 5 15 14->18         started        23 conhost.exe 14->23         started        25 cmd.exe 1 14->25         started        signatures9 process10 dnsIp11 52 learfo55ozj02.duckdns.org 193.222.96.21, 29871, 49739, 49740 SWISSCOMSwisscomSwitzerlandLtdCH Germany 18->52 54 ricohltd.top 104.21.60.38, 443, 49738 CLOUDFLARENETUS United States 18->54 56 geoplugin.net 178.237.33.50, 49741, 80 ATOM86-ASATOM86NL Netherlands 18->56 40 C:\Users\user\AppData\Roaming\fvberms.dat, data 18->40 dropped 68 Maps a DLL or memory area into another process 18->68 70 Hides threads from debuggers 18->70 72 Installs a global keyboard hook 18->72 27 wab.exe 1 18->27         started        30 wab.exe 1 18->30         started        32 wab.exe 14 18->32         started        34 cmd.exe 1 18->34         started        file12 signatures13 process14 signatures15 76 Tries to steal Instant Messenger accounts or passwords 27->76 78 Tries to harvest and steal browser information (history, passwords, etc) 27->78 80 Tries to steal Mail credentials (via file / registry access) 30->80 36 conhost.exe 34->36         started        38 reg.exe 1 1 34->38         started        process16
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=afmvmpmglatrm6vlxuelwrww4qlyeqbyypncq7mg5fuf6cnu6ubq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader downloader execution persistence
Link:
https://tria.ge/reports/240506-ncj46adc37/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Guloader,Cloudeye
Unpacked files
SH256 hash:
0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503
MD5 hash:
aea1734f0f47ad1bd4be38ed8aa381d3
SHA1 hash:
b98819322bd2448972f28703e9abef734d679292
Link:
https://www.unpac.me/results/140fe357-00eb-443b-8c6e-ebe46b9500f8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0159563d8658/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/0159563d865827167aabbd08bb46d6e417824038c3da287d86e9685f09b4f503

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:NSIS_April_2024
Create hunting rule
Author:NDA0N
Description:Detects NSIS installers
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

The table below shows additional information about this malware sample such as delivery method and external references.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetDiskFreeSpaceW
KERNEL32.dll::GetCommandLineW
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileW
KERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
KERNEL32.dll::DeleteFileW
KERNEL32.dll::MoveFileW
KERNEL32.dll::MoveFileExW
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueW
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExW
ADVAPI32.dll::RegDeleteKeyW
ADVAPI32.dll::RegOpenKeyExW
ADVAPI32.dll::RegQueryValueExW
ADVAPI32.dll::RegSetValueExW
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuW
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExW
USER32.dll::OpenClipboard
USER32.dll::PeekMessageW
USER32.dll::CreateWindowExW

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