MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c. 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
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SHA256 hash: f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c
SHA3-384 hash: 563c7821d5a750ca6acac5becb1ef4ad4f1cd79910b08fabca16d18898e1ca2d8e722307a1b79a497a453acd34a36e4e
SHA1 hash: 01349bcc977a41b424c4dc9d07f55c91316e27f5
MD5 hash: cb2775eef5670f31b9aa08c8e93f319f
humanhash: winter-georgia-cat-purple
File name:PO-22385.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'245'696 bytes
First seen:2024-02-07 06:50:15 UTC
Last seen:2024-02-07 08:40:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:LteaUDsdL+b3Lp9XXxexvNirpkn1zTZldvW9cxb:DssdL+7L3XRrunn/e
Threatray 696 similar samples on MalwareBazaar
TLSH T16645BEABB20E560DC4342574E77743F913AC5FA7A801C616B4D8FDBD247E2883609BDA
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon ecec889ce6d8e8f0 (40 x Formbook, 21 x AgentTesla, 12 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
290
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c.exe
Verdict:
Malicious activity
Analysis date:
2024-02-07 07:01:36 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/605c8111-057e-4b8c-a489-fcbfcab3ed66

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/474986/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.2511.1481.7479.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65c3285929ab210c3fab49bd/reports/bee0a493-5d23-4d8e-b1ad-cb1d62900069/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
MSIL Injector
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9f7eaa69-95e4-4ace-847c-c91242789b36
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1388040
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Tries to steal Mail credentials (via file registry)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1388040 Sample: PO-22385.exe Startdate: 07/02/2024 Architecture: WINDOWS Score: 100 51 geoplugin.net 2->51 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Antivirus detection for URL or domain 2->61 63 12 other signatures 2->63 8 PO-22385.exe 6 2->8         started        12 WPasZKJQnCPqBZ.exe 4 2->12         started        signatures3 process4 file5 47 C:\Users\user\AppData\...\WPasZKJQnCPqBZ.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmp8053.tmp, XML 8->49 dropped 65 Tries to steal Mail credentials (via file registry) 8->65 67 Uses schtasks.exe or at.exe to add and modify task schedules 8->67 69 Adds a directory exclusion to Windows Defender 8->69 71 Injects a PE file into a foreign processes 8->71 14 PO-22385.exe 3 14 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        73 Multi AV Scanner detection for dropped file 12->73 75 Contains functionality to bypass UAC (CMSTPLUA) 12->75 77 Contains functionalty to change the wallpaper 12->77 79 5 other signatures 12->79 24 schtasks.exe 12->24         started        26 WPasZKJQnCPqBZ.exe 12->26         started        signatures6 process7 dnsIp8 53 198.27.121.194, 2024, 49712, 49714 OVHFR Canada 14->53 55 geoplugin.net 178.237.33.50, 49718, 80 ATOM86-ASATOM86NL Netherlands 14->55 87 Tries to harvest and steal browser information (history, passwords, etc) 14->87 89 Maps a DLL or memory area into another process 14->89 28 PO-22385.exe 14->28         started        31 PO-22385.exe 14->31         started        33 PO-22385.exe 14->33         started        45 2 other processes 14->45 35 conhost.exe 18->35         started        37 WmiPrvSE.exe 18->37         started        39 conhost.exe 20->39         started        41 conhost.exe 22->41         started        43 conhost.exe 24->43         started        signatures9 process10 signatures11 81 Tries to steal Instant Messenger accounts or passwords 28->81 83 Tries to steal Mail credentials (via file / registry access) 28->83 85 Tries to harvest and steal browser information (history, passwords, etc) 31->85
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2024-02-06 10:30:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6gl7hjhrukdbharmq7ub3i4dv76iaxxl7r7toxxdfwqud2l4gm6a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0362ca22d88c46b40010c8d847a769ff5942df7071968f00911a41b59e1a59a5
RemcosRAT
7d5fb292b4477237a05a35eb135a13c9f6d1177987217e94c3558b91fa97c285
RemcosRAT
a34703455cfad3bd85b49213b77382c3308f677f2ebd0fc547531fe383dd24ca
RemcosRAT
b226cb72338d093e8d2c002963375994cc8f8992889d72207e7217aef2940ab3
RemcosRAT
+ 686 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:desk collection rat spyware stealer
Link:
https://tria.ge/reports/240207-hmhfesedd3/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Checks computer location settings
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
198.27.121.194:2024
Unpacked files
SH256 hash:
549c0978868a5951b6d124a720f17830f9e26f5c92748cd57a23aa95db116895
MD5 hash:
f4fd6b54c37440df5200d28a97b2edb8
SHA1 hash:
ecab378d0d89a6089edb26da4749d014b6095dbb
Detections:
Remcos
Create hunting rule
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/59281b85-515f-4541-b737-ce8fdf34494c/
Parent samples :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 hash:
b12806cfc459d707518ce982849166ca99e95df5e05d4bc7bde7d3f4942cfe0e
MD5 hash:
7c59960bd60eda6f3da4824d1dd30e5e
SHA1 hash:
ab771360df8926364dee0758a6fb6814576fd03e
Link:
https://www.unpac.me/results/59281b85-515f-4541-b737-ce8fdf34494c/
SH256 hash:
b8d7b939f0c128b5c29a2233b1373ab8a63662969cc0556f734072a093fb1779
MD5 hash:
8fd3592238d9eed50bbde4fb0751cfaf
SHA1 hash:
4147277c8613a05b7f80aac5e82739213367a82c
Link:
https://www.unpac.me/results/59281b85-515f-4541-b737-ce8fdf34494c/
SH256 hash:
a3b82e2d17f660c450ba4dae95a26b906f12626462a4bb9a6c2833071dd9faf5
MD5 hash:
cf3241f04cc546fa617566e84b5c1793
SHA1 hash:
0b9cbe0c45fba268857e11ad4d71105193c19d02
Link:
https://www.unpac.me/results/59281b85-515f-4541-b737-ce8fdf34494c/
SH256 hash:
f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c
MD5 hash:
cb2775eef5670f31b9aa08c8e93f319f
SHA1 hash:
01349bcc977a41b424c4dc9d07f55c91316e27f5
Link:
https://www.unpac.me/results/59281b85-515f-4541-b737-ce8fdf34494c/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f197f3a4f1a2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
Link:
https://yomi.yoroi.company/submissions/f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe f197f3a4f1a28613822c87e81da383affc805eebfc7f375ee32da141e97c333c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/474986/

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