MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576. 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: 9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576
SHA3-384 hash: df5b232be5b7cc4b2adb5ccf691022aad582c8af81364bc1611ec870683c25c277c464e6a37dcf9c38c7d1a4a53153fa
SHA1 hash: 357218dec3d55889bd38fe7e534d6f77b1287f52
MD5 hash: 288d0b21f1fb2b42ea1fd1995413341b
humanhash: aspen-kansas-lake-winner
File name:New Order59687900898987.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'209'816 bytes
First seen:2025-04-25 14:02:34 UTC
Last seen:2025-05-09 14:02:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 57e98d9a5a72c8d7ad8fb7a6a58b3daf (60 x GuLoader, 20 x AZORult, 12 x RemcosRAT)
ssdeep 24576:s3f0pAlAAX0Ze7FZnPdoOdUAN2juOJm0ehrMXsGcsq44vZ:Sf0+NXgONoY2juOJmThruFcp44h
TLSH T1D845235B376484D7CAEC85710C2A6D814B26AD2E59A01A1FF7F677BE25B3303018B35E
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
dhash icon c1cc7c66beb4e3f0 (2 x GuLoader, 1 x AgentTesla)
Reporter TeamDreier
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:jammeren
Issuer:jammeren
Algorithm:sha256WithRSAEncryption
Valid from:2024-11-04T11:16:36Z
Valid to:2025-11-04T11:16:36Z
Serial number: 36d2b69ee09f7ac06f924ead5f624004c8e195b0
Thumbprint Algorithm:SHA256
Thumbprint: 69c2c912ff8bb9129c61a1f379262332ff4badf5f27e79de96f672f1c6fd6abb
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
434
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
NewOrder59687900898987.exe
Verdict:
Malicious activity
Analysis date:
2025-04-25 14:06:47 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cac3b5d3-b83b-4e71-b443-200ae4b4f7e6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/4093/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.254.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=680b96f63d067f84839941dd
Tags:
injector uloader virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context blackhole installer masquerade microsoft_visual_cc overlay overlay packed phishing signed
Link:
https://www.filescan.io/uploads/680b9627218c4a98ade1f7d8/reports/637f2efe-8ff8-4e27-8961-72ad86816f6d/overview
Verdict:
Malicious
Labled as:
Trojan.GenericS
Link:
https://www.hybrid-analysis.com/sample/9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/2ec2a4b5-8ba8-464d-b928-266f48ac7b46
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1674194
Signature
AI detected suspicious PE digital signature
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 GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-04-24 06:28:29 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
17 of 36 (47.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tjtk6mc2wnc4g62ar5ewycwreupbgrxucwdhilpsewxsyzle2v3a._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/250425-rcp7ysxn18/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Loads dropped DLL
Guloader family
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ffd05f1d-a785-4bfa-8b33-e9d04645e4fb
Unpacked files
SH256 hash:
9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576
MD5 hash:
288d0b21f1fb2b42ea1fd1995413341b
SHA1 hash:
357218dec3d55889bd38fe7e534d6f77b1287f52
Link:
https://www.unpac.me/results/3a23f8f8-5540-4d31-923a-5d5c20801892/
SH256 hash:
904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8
MD5 hash:
55a26d7800446f1373056064c64c3ce8
SHA1 hash:
80256857e9a0a9c8897923b717f3435295a76002
Detections:
win_qtbot_auto
Create hunting rule
Link:
https://www.unpac.me/results/3a23f8f8-5540-4d31-923a-5d5c20801892/
Parent samples :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 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/9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576

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:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information

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

Malspam

GuLoader

Executable exe 9a66af305ab345c37b408f496c0ad1251e1346f41586742df225af2c6564d576

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/4093/

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::SetFileSecurityA
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SECURITY_BASE_APIUses Security Base APIADVAPI32.dll::AdjustTokenPrivileges
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteExA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
ADVAPI32.dll::OpenProcessToken
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileExA
KERNEL32.dll::MoveFileA
WIN_BASE_USER_APIRetrieves Account InformationADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

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