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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df
SHA3-384 hash: 13a5f1eb1478470b28fa69d1129d67913073a3ba974a4c9b196237bf54365609145e0b55d265e97b2d99fcb7df64c25f
SHA1 hash: bc17d0835d3bae86dde68dfdfa6b06eab08ba4df
MD5 hash: e3c5a157bec27e1c503226f0d911cb73
humanhash: may-skylark-three-king
File name:Swift-09-14-2026-00495944.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:278'456 bytes
First seen:2026-09-22 07:40:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (593 x GuLoader, 130 x RemcosRAT, 85 x EpsilonStealer)
ssdeep 6144:2Q606xzsYsIaaUZcqThv/WD17NP1UybduC:8spZcqlH+UyJf
TLSH T1EF44E1007310DEDBF8A4493465A3A35A0B75FC326D817B67A2A8FD0C74B36D0661FB5A
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 00dcc2da9eb6b64c (1 x GuLoader)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Overgangsbestemmelsers
Issuer:Overgangsbestemmelsers
Algorithm:sha256WithRSAEncryption
Valid from:2026-09-06T06:50:20Z
Valid to:2027-09-06T06:50:20Z
Serial number: 53ff002d647512bb8b6efd5657e7029801ad4919
Thumbprint Algorithm:SHA256
Thumbprint: 440fabdee3b61f3442f2c1977bbe4f14b3aa866ae2db0e5aa4f458f750b4cabd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/e98347b4-4063-45c1-a9c8-5a0044698fe8/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-22 08:03:35 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/cb21c8c2-c86a-4ad2-8456-f6695db7de68

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/88239/
Detection(s):
SecuriteInfo.com.FileRepMalware.52889143.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %temp% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 installer installer microsoft_visual_cc nsis signed
Link:
https://www.filescan.io/uploads/6ab231194921ab40f10fdbbb/reports/2cd1d10c-be27-4846-9002-ee3560e2fe8d/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-09-14T02:54:00Z UTC
Last seen:
2026-09-24T05:37:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/c68b271d-72e5-41a3-b901-53c698ad86a5
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
84 / 100
Link:
https://www.joesandbox.com/analysis/1976018
Signature
AI detected suspicious PE / MSI digital signature
Hides threads from debuggers
Multi AV Scanner detection for submitted file
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Unusual module load detection (module proxying)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/e3c5a157bec27e1c503226f0d911cb73
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2026-09-14 18:45:23 UTC
File Type:
PE (Exe)
Extracted files:
9
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u2tc5cgb26hltmeydzcz5zmjjmnczxsd3364xhh7j4tz57y2ihpq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/260922-jh8bqa1dra/
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
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df
MD5 hash:
e3c5a157bec27e1c503226f0d911cb73
SHA1 hash:
bc17d0835d3bae86dde68dfdfa6b06eab08ba4df
Link:
https://www.unpac.me/results/d7ebb8c2-84e2-4bd4-a74a-ef56b2b5d10d/
SH256 hash:
59cdb2c12d5635fd25af4007b70222507948be41fa9885b7f07967c2510a5311
MD5 hash:
82c3f38cd34739872af07443c65d0bd8
SHA1 hash:
1f4ee2d394404a291eda6419f856adaf4b960237
Link:
https://www.unpac.me/results/d7ebb8c2-84e2-4bd4-a74a-ef56b2b5d10d/
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/d7ebb8c2-84e2-4bd4-a74a-ef56b2b5d10d/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.52
Link:
https://yomi.yoroi.company/submissions/a6a62e88c1d78eb9b0981e459ee5894b1a2cde43defdcb9cff4f279eff1a41df

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:NSIS
Create hunting rule
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/88239/

Comments