MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
SHA3-384 hash: 829d1a818a2ad899a7c4f986892a4dd10ec3b333e65c82e6ccf9c551abecedf399579cc51842a2b51730143a65f2bb77
SHA1 hash: 6444103c3add87fc2ec252790932fb428ec76fbf
MD5 hash: 94cb6fa33a286b6e283f7955e1cbf62d
humanhash: single-potato-cat-north
File name:a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
Download: download sample
Signature GuLoader
Create hunting rule
File size:966'240 bytes
First seen:2026-06-08 09:35:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 9a16e282eba7cc710070c0586c947693 (37 x GuLoader, 15 x RemcosRAT, 11 x VIPKeylogger)
ssdeep 24576:oA7F7uC9LPvhdBuylMeBEFmNZpJGSqQc3DKtbPik+v:oUuCR7BHrDHVSKtTik+v
Threatray 2'369 similar samples on MalwareBazaar
TLSH T143252398F375831FE855D371C8BA8A60CB78AC6C3449960F6345B1A63CB37CA46153EE
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 70e8f0d0f0f8f001 (6 x GuLoader, 1 x RemcosRAT)
Reporter adrian__luca
Tags:exe GuLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
53
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/c7b109e2-e9f9-4a45-95d6-cc15d4597c2e/
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/69838/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a268ddfae2f98c00a68c974
Tags:
uloader virus nsis blic
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Delayed reading of the file
Creating a file
Deleting a recently created file
Restart of the analyzed sample
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug guloader installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed similar-threat
Link:
https://www.filescan.io/uploads/6a268dcdbf16337e43bb27c9/reports/80b94132-8866-4c57-96db-00b83e9f4a30/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-12T15:59:00Z UTC
Last seen:
2026-06-08T06:09:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/57aa9c9f-dfe7-4086-97c5-6ff41b309f3a
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2026-05-12 18:56:23 UTC
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcqudlpdl2kaufpk5simxmnb5i22xbdsl63wxsbni3b4rdnn3ica._file
Verdict:
malicious
Label(s):
cloudeye
Create hunting rule
Similar samples:
0e6ed705bf4d09492f4b49f74fdc708c36a26e4840a9b01187be793e3a123fc1
GuLoader
40954b27b8d9c5affe5035f26727cf48ddbc3479cc0aefa75f4394637534bb57
GuLoader
4f89186921e9841c761efd9608beafa691675d47ab5e0d08a816a64b9b62122d
GuLoader
6a46cc07f5f9740196f0dd8c3aa1cdd50f9b09389727cccafa92ce949741c1b4
GuLoader
88147aad7aa96d552ff975e54a28a013be2a82510226daf9e5bba144912e8ac3
GuLoader
a193b9010ae51ca97aaeb7a82ec5433ce8f79549cd3c1d48e4b6308fea98f449
GuLoader
a563955ca7d826b6c396cc89bb829f72d1ccd57e4696496f6ef7faae1c8b8353
GuLoader
a911931015d57eb23239aa6e827f330a426717d17c6bc63ee3e664d59c6e6f62
GuLoader
aea137eae4b972ffbecdedc149a7ba4c1b40dbe4958ec6209acb734998bbfe15
GuLoader
e7ee34ee21a62eebc2c09d2313efd23dbe4ebf1f9db7d60dea2026f900cdacd9
GuLoader
error
GuLoader
+ 2'359 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery installer persistence rat
Link:
https://tria.ge/reports/260608-ll45kscs9x/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Family: Remcos
Malware Config
C2 Extraction:
23.95.103.219:2404
Unpacked files
SH256 hash:
a8a141ade35e940a15eaec90cbb1a1ea35ab84725fb76bc82d46c3c88dadda04
MD5 hash:
94cb6fa33a286b6e283f7955e1cbf62d
SHA1 hash:
6444103c3add87fc2ec252790932fb428ec76fbf
Link:
https://www.unpac.me/results/e75d63f8-0eef-4f8c-9538-6cab90bfb287/
SH256 hash:
a44ca08afb3f6bafd76aa35c259f3d599fe34f6f49ea5118626c1c1a540b0f03
MD5 hash:
81e268e27dbbcadbf116b5a9402195ab
SHA1 hash:
bd2b701b2e5e279786e179bceee2dc132a2afc37
Link:
https://www.unpac.me/results/e75d63f8-0eef-4f8c-9538-6cab90bfb287/
Please note that we are no longer able to provide a coverage score for Virus Total.

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/69838/

Comments