MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860
SHA3-384 hash: 5503b9fa8eb92476ed10f73a38e98a0ba77a007da4252b4b2fec72af81004457a65f713a72c65affc115ce1d8defc676
SHA1 hash: 482453c387f29a1e137284993b480c9d41251635
MD5 hash: 09fb5016edffd40b1ec16251b8e24793
humanhash: skylark-florida-artist-wolfram
File name:09fb5016edffd40b1ec16251b8e24793.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:402'567 bytes
First seen:2024-04-28 09:13:59 UTC
Last seen:2024-04-28 09:31:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 66fcdd6338ffed276966867e7cf86116 (9 x GuLoader, 2 x AgentTesla, 2 x RemcosRAT)
ssdeep 6144:j0xJt5VEpswfE/km+ZTKb4Aws5tevTfI18WUCnScdyhPd0SZo3r2VHPXDwg:j0Z4pV+kmF4Ug0SUwIqFXsg
Threatray 705 similar samples on MalwareBazaar
TLSH T19D8412386BECCCD6D99602B018BF2BA77F755C086061970BE3A8BA55B837740DE0E351
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 9ad8d8ccece5ce7c (2 x GuLoader)
Reporter abuse_ch
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860.exe
Verdict:
Malicious activity
Analysis date:
2024-04-28 09:30:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/12f987d0-b53c-49b7-89f2-0511e1a9a6d3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Creating a file in the %temp% subdirectories
Launching a process
Running batch commands
Using the Windows Management Instrumentation requests
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/662e135d54bafb7d21e361a6/reports/5063e9c2-b5ff-4bbe-98ad-cbc14d2480b4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860
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:
Malicious
Link:
https://analyze.intezer.com/analyses/d27ca965-4fd2-4296-ac1f-17bdc7f97a0f
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1432830
Signature
Antivirus detection for URL or domain
Found suspicious powershell code related to unpacking or dynamic code loading
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
Suspicious powershell command line found
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1432830 Sample: d7c3NkWr9i.exe Startdate: 28/04/2024 Architecture: WINDOWS Score: 96 33 Antivirus detection for URL or domain 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 2 other signatures 2->39 7 d7c3NkWr9i.exe 1 22 2->7         started        11 svchost.exe 1 1 2->11         started        process3 dnsIp4 25 C:\Users\user\AppData\...\liebhaverierne.Osc, ASCII 7->25 dropped 41 Suspicious powershell command line found 7->41 14 powershell.exe 20 7->14         started        31 127.0.0.1 unknown unknown 11->31 file5 signatures6 process7 file8 27 C:\Users\user\AppData\...\d7c3NkWr9i.exe, PE32 14->27 dropped 43 Obfuscated command line found 14->43 45 Writes to foreign memory regions 14->45 47 Found suspicious powershell code related to unpacking or dynamic code loading 14->47 49 Powershell drops PE file 14->49 18 wab.exe 12 14->18         started        21 conhost.exe 14->21         started        23 cmd.exe 1 14->23         started        signatures9 process10 dnsIp11 29 193.239.86.203, 49714, 80 MERITAPL Romania 18->29
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 02:24:03 UTC
File Type:
PE (Exe)
Extracted files:
6
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bkuikrarurbf5odglbkfpch6xh3jkknybquzms4mnuhokmkk5bqa._file
Verdict:
malicious
Similar samples:
086fd488622c16461d2c60ca3cd42a7d5147978f1624e51a04c7ceedcaa71c6c
GuLoader
0920bc3a9993954c4c2f092677b4a629be306568d7d8226b24c516ffb069f41e
GuLoader
4468fe52ea5aeb3bb0673ea101f9989fe4a1ea3ee8f729c64f56f66324e94988
GuLoader
94ffc7bec0cef06550d739bc5014a3232c9218a50524de0464b53b6dbbd7ed5f
GuLoader
98ac0a744497cf22f08ae5e2e49eba547253f7824b2a76ecfd7cf786dd1b34ce
GuLoader
ab4857661d0d6c808ce06c8978e589648f6e139412b1fde261f803dd0bc8f106
GuLoader
b300e18bf2da85f573018efd066241135b68e8097fedf22160cdf9c1eafd47dc
GuLoader
ccab68b5a4548b426960ac5e57511c5511f84868bb28b8a5ebd080632b5cf815
GuLoader
f77b953a53a607e534572eda08dfaa91ad61f52491e9982a0790869c80a714c4
GuLoader
+ 695 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/240428-k7bvgscf41/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860
MD5 hash:
09fb5016edffd40b1ec16251b8e24793
SHA1 hash:
482453c387f29a1e137284993b480c9d41251635
Link:
https://www.unpac.me/results/95f4fc7f-26b4-4cfd-af79-182f7bd65755/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0aa8854411a4/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/0aa8854411a4425eb86658545788feb9f69529b80c29964b8c6d0ee5314ae860

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

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
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

Comments