MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b
SHA3-384 hash: c91599c40bb031c4512b4c6844c000dac8f60f4a61abf9b9bc9ff70f47d12828d12725acb73f80015e3f1d7ee36a4dfd
SHA1 hash: ec51a2a895d8f5fd4cce8eef89a013b40f7668e6
MD5 hash: e0de5dec42b9a530323f9aced65ecefa
humanhash: california-black-wolfram-winner
File name:Purchase_Order_[PO-2025-001].exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'009'320 bytes
First seen:2025-11-10 09:00:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 24576:7RBix3+9AKMNOss0i4/Zu9/uDJu1ICkKSmwHB:9BdWhAWoUJu1Krh
TLSH T1E62512262680F5C1DEA488F017515B699FFA7DE2384468073707F79C3871387A9EEE26
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
Reporter adrian__luca
Tags:exe RemcosRAT signed

Code Signing Certificate

Organisation:Stumpnsen
Issuer:Stumpnsen
Algorithm:sha256WithRSAEncryption
Valid from:2025-09-15T06:11:43Z
Valid to:2026-09-15T06:11:43Z
Serial number: 6d274ea492727336b3dc59dc33d70bf627b46b61
Thumbprint Algorithm:SHA256
Thumbprint: 5427ab99af1d0a2677769e2eb5b850c0f5733db233f533b355185abaa78d3c21
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
119
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Purchase_Order_[PO-2025-001].exe
Verdict:
Malicious activity
Analysis date:
2025-11-10 09:05:13 UTC
Tags:
auto-reg remcos rat remote
Link:
https://app.any.run/tasks/1217f200-38c6-4fb6-856f-411292c9cba5

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/36669/
Verdict:
Clean
Score:
89.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6911aa31ac1ae236e1790230
Tags:
n/a
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Sending a custom TCP request
Creating a file in the %temp% directory
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Gathering data
Verdict:
Malicious
Labled as:
Malware_50.0
Link:
https://www.hybrid-analysis.com/sample/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-09T21:18:00Z UTC
Last seen:
2025-11-12T05:53:00Z UTC
Hits:
~1000
Detections:
HEUR:Backdoor.Win32.Remcos.gen Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba VHO:Trojan.Win32.Sdum.gen Trojan-Downloader.Win32.Minix.sb PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/94192835-4ab5-4236-98b0-2b74d129857c
Score:
94%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b
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/e0de5dec42b9a530323f9aced65ecefa
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-11-10 00:20:15 UTC
File Type:
PE (Exe)
Extracted files:
40
AV detection:
13 of 24 (54.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=32r2ghijqw26jmwyr2rzeklarjpamisv3uim3vuuzy447ikn7vfq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery persistence rat
Link:
https://tria.ge/reports/251110-kzbvhsej6t/
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 Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Accesses Microsoft Outlook accounts
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.72.121:2404
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/ecda2818-a3e4-4c44-bdf6-d2742b368d6c
Unpacked files
SH256 hash:
dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b
MD5 hash:
e0de5dec42b9a530323f9aced65ecefa
SHA1 hash:
ec51a2a895d8f5fd4cce8eef89a013b40f7668e6
Link:
https://www.unpac.me/results/4cffe55c-07d8-4399-8592-6aa7fb364bc4/
SH256 hash:
59cdb2c12d5635fd25af4007b70222507948be41fa9885b7f07967c2510a5311
MD5 hash:
82c3f38cd34739872af07443c65d0bd8
SHA1 hash:
1f4ee2d394404a291eda6419f856adaf4b960237
Link:
https://www.unpac.me/results/4cffe55c-07d8-4399-8592-6aa7fb364bc4/
SH256 hash:
f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37
MD5 hash:
8b3830b9dbf87f84ddd3b26645fed3a0
SHA1 hash:
223bef1f19e644a610a0877d01eadc9e28299509
Link:
https://www.unpac.me/results/4cffe55c-07d8-4399-8592-6aa7fb364bc4/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dea3a31d0985/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/dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b

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

File information

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

Malspam

RemcosRAT

Executable exe dea3a31d0985b5e4b2d88ea39229608a5e062255dd10cdd694ce39cfa14dfd4b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/36669/

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