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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b. 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: 7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b
SHA3-384 hash: b4229722bdead338ff5592e97b89cb85313294834f5f6707ce29cfc91031d73e47a5c0166c3a6ac8b72a9d7862811a25
SHA1 hash: bfe39774f356f799bd74649330ab7baecb95c052
MD5 hash: 0519c157d2d7450690a1cef20ea51e8f
humanhash: aspen-kentucky-bulldog-kentucky
File name:Skambenets.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:683'327 bytes
First seen:2025-03-04 10:30:22 UTC
Last seen:2026-05-20 17:52:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash e221f4f7d36469d53810a4b5f9fc8966 (118 x GuLoader, 28 x RemcosRAT, 21 x Formbook)
ssdeep 6144:ttXZXAehlzqxBd9SzzPV04yXmq5N08J4S9jlxWoESbm/NKwu7tblLa/bdiRqg4lj:tt4DeGJIojIVKz7tbBa3AGtmMYSBEo3
Threatray 561 similar samples on MalwareBazaar
TLSH T160E412287ED9E877C28118790EB1D6BEE7F67D0809118F27B72D3FAE1D3085269191E0
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 32e1cc9ace78b184 (2 x GuLoader, 1 x RemcosRAT)
Reporter lowmal3
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
3
# of downloads :
670
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
Skambenets.exe
Verdict:
Malicious activity
Analysis date:
2025-03-04 10:36:35 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/80d8d384-4956-4aad-ab57-98e80e279287

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.FileRepMalware.32150.27859.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67c6d752c668b65489beebf0
Tags:
injection virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
blackhole installer microsoft_visual_cc obfuscated overlay packed packer_detected
Link:
https://www.filescan.io/uploads/67c6d6653c5f644bd9420bd5/reports/e068d4d6-8258-4eb2-8f9a-06fc9d79313c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/b5578da7-d864-4292-8b48-7a06f89bde30
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1629090
Signature
Joe Sandbox ML 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 GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pxfd3p2kbwm6psdo3l5yg2mjstu7rhjoyuo6tchq7dd6yvhe7anq._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
1cbbee9b00f9510220882fc5a6daf414800b64d814f9938dace5e060d58e56de
GuLoader
213be309e9885ffee1f6dff8cbdc8527d22a0813105cb565dddb727b0d74ff6f
GuLoader
342a7c418f2125aee7a228634841450a97c0b0653c5f9217bd1bb0677a5b14db
GuLoader
6054e801f0c62698352dd4b1d1c3e82097ede19f36cdd2db9b4c69bc763f3adb
GuLoader
913172750585a6984011e58a573a38cd7ed051e2145690cf7a4b53b1ca49725c
GuLoader
e721952c765bb39555f2aa9f2141649fe2c1f2700224513c2860c8a7e25d2260
GuLoader
error
GuLoader
+ 551 additional samples on MalwareBazaar
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/250304-mj9gysypw5/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Program Files directory
Drops file in Windows 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/f3a3db67-aa90-46a7-a303-d9a086be3849
Unpacked files
SH256 hash:
7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b
MD5 hash:
0519c157d2d7450690a1cef20ea51e8f
SHA1 hash:
bfe39774f356f799bd74649330ab7baecb95c052
Link:
https://www.unpac.me/results/708e09c2-02b3-4531-a4b7-b506276aef09/
SH256 hash:
5a1c20a3e2e2eb182976977669f2c5d9f3104477e98f74d69d2434e79b92fdc3
MD5 hash:
7399323923e3946fe9140132ac388132
SHA1 hash:
728257d06c452449b1241769b459f091aabcffc5
Link:
https://www.unpac.me/results/708e09c2-02b3-4531-a4b7-b506276aef09/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/7dca3dbf4a0d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
GuLoader
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b

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: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 7dca3dbf4a0d99e7c86edafb83698994e9f89d2ec51de988f0f8c7ec54e4f81b

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteW
SHELL32.dll::SHFileOperationW
SHELL32.dll::SHGetFileInfoW
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessW
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.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::GetWindowsDirectoryW
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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