MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e. 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: 14


Intelligence 14 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e
SHA3-384 hash: 95cd544e37cad1239b35bf394a86c4085d21216059e89e4cad7c6b817229e30eee3727c21aacc59ec92af62b77b1d783
SHA1 hash: afc840f25adfcb5873f5b69e55b2920c370a2285
MD5 hash: 53441f2de2d573f3b2e4fb35c248229b
humanhash: foxtrot-emma-burger-shade
File name:IMAGE000Pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:915'632 bytes
First seen:2024-11-04 15:06:58 UTC
Last seen:2024-11-04 16:26:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (293 x GuLoader, 51 x VIPKeylogger, 48 x RemcosRAT)
ssdeep 12288:A3nIRS5/vuI8sOabBdHdWIXjwxipfpQGYAGau5yxX9O9u:A3IRgvuoO0pdZXjUiNuGYpawA9uu
TLSH T159156949A38C50C6DD3A3B32FA1D7613B655AC138550118A3AC8BE583BF57B07B9FA31
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 70ec79b052527171 (1 x RemcosRAT, 1 x GuLoader, 1 x Formbook)
Reporter abuse_ch
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Underretternes
Issuer:Underretternes
Algorithm:sha256WithRSAEncryption
Valid from:2024-01-25T09:16:23Z
Valid to:2027-01-24T09:16:23Z
Serial number: 0c38ded2c7c23be59c80206bbcc81e7bf88a1876
Thumbprint Algorithm:SHA256
Thumbprint: b488d28f491b0130739761d68a25298dfd95a7d90a466b370c1d833271156981
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
409
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
IMAGE000Pdf.exe
Verdict:
Malicious activity
Analysis date:
2024-11-04 15:07:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f15f1240-e89d-4a9d-92dc-a7af08a40a00

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.19070.28378.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6728e31a49e92a05dde2d592
Tags:
shellcode injection exploit nsis
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file
Creating a file in the %temp% subdirectories
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
installer microsoft_visual_cc overlay packed
Link:
https://www.filescan.io/uploads/6728e3184b1af2a68f4abdc2/reports/a9b71236-c4a9-4e39-bb8c-18f4ff13a750/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/bdeb346f-28d6-4476-92c3-a0f100b4860e
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
88 / 100
Link:
https://www.joesandbox.com/analysis/1548539
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
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:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2024-11-04 11:06:36 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lpclfaui6bupdqi6ngy4zffkznfq2kasjfgbm42hdoeq6hhgpkpa._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
error
GuLoader
Result
Malware family:
n/a
Score:
  7/10
Tags:
discovery
Link:
https://tria.ge/reports/241104-shavws1hka/
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/6cf4bfad-e1fe-41c0-bd01-195350b19f66
Unpacked files
SH256 hash:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Link:
https://www.unpac.me/results/7906541a-3cd2-46ed-92dd-2c2c472f63c9/
SH256 hash:
5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e
MD5 hash:
53441f2de2d573f3b2e4fb35c248229b
SHA1 hash:
afc840f25adfcb5873f5b69e55b2920c370a2285
Link:
https://www.unpac.me/results/7906541a-3cd2-46ed-92dd-2c2c472f63c9/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5bc4b28288f0/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/5bc4b28288f068f1c11e69b1cc94aacb4b0d2812494c1673471b890f1ce67a9e

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:PE_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
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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