MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61
SHA3-384 hash: 706cee26cc8bf81a10280a6a04bc5e1b663eb0e63dee74569759f9f0da79574644befafafc5d7fbbf2e83039e87b76c7
SHA1 hash: f4b50358a668915198ffcac9570341927f41a261
MD5 hash: 8b955aac04b3a8c53cb1f68404096b11
humanhash: beer-yellow-north-nevada
File name:PO 331385674200010.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:461'483 bytes
First seen:2024-11-13 07:19:15 UTC
Last seen:2024-11-13 07:19:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger)
ssdeep 6144:eT4DtqvsmZF9tjcWX/LF5u9t5SoptQPyqNvJ8szRdHW+HmGkVqEsafxYjYmr/d:eTLpZF9yWXO6MayYv6gPaqEsapYNd
TLSH T124A401463390E677D47D02328C2783561B76AD218BE6AF0B3314B70D6DB23566D3BE61
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon 9c9262e6f1f1f224 (5 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
420
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO 331385674200010.exe
Verdict:
Malicious activity
Analysis date:
2024-11-12 13:03:12 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/0dbc2de9-488c-4bc2-8ca4-f12809c68281

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.74775584.24786.5845.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6735184534b6906b34828209
Tags:
uloader virus gates nsis
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
installer microsoft_visual_cc overlay packed packed packer_detected phishing
Link:
https://www.filescan.io/uploads/67345323dcee1c39e46fd86e/reports/27232eca-3abd-4770-b846-fb2e430964fc/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/b41c4eab-c877-4122-9664-483b09644911
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1554917
Signature
AI detected suspicious sample
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
96%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-11-12 06:26:46 UTC
File Type:
PE (Exe)
Extracted files:
7
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=eyp5y5iqxod27rbryztfbn7mupfttq56lsryc35cd4qlgivzjzqq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/241113-h535vazrfn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/75ec518a-b45f-43ec-a82c-4341b569616b
Unpacked files
SH256 hash:
7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
MD5 hash:
564bb0373067e1785cba7e4c24aab4bf
SHA1 hash:
7c9416a01d821b10b2eef97b80899d24014d6fc1
Link:
https://www.unpac.me/results/c84d7bf8-1f78-4802-98b0-d652cd37f917/
SH256 hash:
261fdc7510bb87afc431c66650b7eca3cb39c3be5ca3816fa21f20b322b94e61
MD5 hash:
8b955aac04b3a8c53cb1f68404096b11
SHA1 hash:
f4b50358a668915198ffcac9570341927f41a261
Link:
https://www.unpac.me/results/c84d7bf8-1f78-4802-98b0-d652cd37f917/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/261fdc7510bb/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:RansomPyShield_Antiransomware
Create hunting rule
Author:XiAnzheng
Description:Checking for malicious import combination that common Ransomware mostly use

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_AUTHENTICODEMissing Authenticodehigh
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
ADVAPI32.dll::SetFileSecurityW
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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