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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91. 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


RemcosRAT


Vendor detections: 17


Intelligence 17 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91
SHA3-384 hash: f41837444ae7dc0789626c5e92d081072c00fea542e6edb43923af3bff1827b80e9b6f5ec48a85b8b1b60227fa67ead0
SHA1 hash: db84bde9beacc4549a909707a84c74b17d269211
MD5 hash: cbca17f362f2c30d7c44c6450c3e055c
humanhash: lamp-river-oregon-muppet
File name:scan.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:356'648 bytes
First seen:2025-12-03 08:31:21 UTC
Last seen:2026-05-20 17:30:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 56a78d55f3f7af51443e58e0ce2fb5f6 (739 x GuLoader, 453 x Formbook, 295 x Loki)
ssdeep 6144:ObE/HUS18DBzawXXgXUNhoT3G8S2203sqFNApMDnKIUUmy0:ObY8DBGwnKSkWF03JF+2GUmF
TLSH T1D8741201B314C037D581073109B1E63BDEBEEABD12625E170B552B2DBEA6392DD5F352
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 2882ce69d234b1b8 (5 x RemcosRAT, 2 x GuLoader)
Reporter lowmal3
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Drattevorn
Issuer:Drattevorn
Algorithm:sha256WithRSAEncryption
Valid from:2025-10-07T04:53:04Z
Valid to:2026-10-07T04:53:04Z
Serial number: 743ecf8e5af364515ab893ef833f9fa64ceb9f02
Thumbprint Algorithm:SHA256
Thumbprint: 5b16b2967e8a9e4fb31a5335953f821f21f62e1d0a32f164fb140fdfc1099319
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
5
# of downloads :
136
Origin country :
DE DE
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
GuLoader
an XOR decryption key and an extracted component
GuLoader
a c2 URL, a useragent string, and a string XOR key
NSIS
extracted archive contents
Link:
https://research.acce.ciphertechsolutions.com/results/8c1e2e14-d962-420e-b4d2-019e8777ac2c/
Malware family:
remcos
Create hunting rule
ID:
1
File name:
scan.exe
Verdict:
Malicious activity
Analysis date:
2025-12-03 08:40:42 UTC
Tags:
remcos rat auto-reg remote stealer
Link:
https://app.any.run/tasks/3799b786-5e32-4e90-8a54-532bcb97808a

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/42236/
Detection(s):
SecuriteInfo.com.Malware-Cryptor.NSISex.Heur.6381.16087.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692ff590264b106bd64650b2
Tags:
virus sage blic
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file
Creating a file in the Windows subdirectories
DNS request
Creating a file in the %temp% directory
Delayed reading of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug blackhole fingerprint installer installer installer-heuristic microsoft_visual_cc nsis overlay signed
Link:
https://www.filescan.io/uploads/692ff58fddcd694c78ba2092/reports/2acb0782-1cbe-4eee-97c0-62426e6c26f3/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-12-02T20:43:00Z UTC
Last seen:
2025-12-05T06:42:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sba HEUR:Trojan-Dropper.Win32.Agentb.gen
Link:
https://opentip.kaspersky.com/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4cc15582-cf48-473e-a41a-65ab8e7180db
Result
Threat name:
GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1825182
Signature
AI detected suspicious PE digital signature
Antivirus / Scanner detection for submitted 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
Unusual module load detection (module proxying)
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91
Threat name:
Win32.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2025-12-03 02:53:42 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=f37m4evc3xamkufnoydkbklflaxfxmvmrc7qd6vyj3gulqghpwiq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/251203-kfd6jaxlcq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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 NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
176.117.107.48:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/da4aed46-14c2-4e3f-a3d5-6979fdd75c53
Unpacked files
SH256 hash:
2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91
MD5 hash:
cbca17f362f2c30d7c44c6450c3e055c
SHA1 hash:
db84bde9beacc4549a909707a84c74b17d269211
Link:
https://www.unpac.me/results/ce84b5ec-ab03-4f84-81b3-77bc51a77e75/
SH256 hash:
8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8
MD5 hash:
cff85c549d536f651d4fb8387f1976f2
SHA1 hash:
d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e
Link:
https://www.unpac.me/results/ce84b5ec-ab03-4f84-81b3-77bc51a77e75/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2efece12a2dd/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/2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

RemcosRAT

zip 0246919f4b9f7e52718b317fa01fc0cdc856e37f3d4770dff90d6febdea842f0

RemcosRAT

Executable exe 2efece12a2ddc0c550ad7606a0a965582e5bb2ac88bf01fab84ecd45c0c77d91

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/42236/
  
Dropped by
SHA256 0246919f4b9f7e52718b317fa01fc0cdc856e37f3d4770dff90d6febdea842f0
  
Dropped by
MD5 bf6e9bfddef227dd69818457b4abc2ea

Comments