MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
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SHA256 hash: f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2
SHA3-384 hash: 2d3e8a42891bbbd344fcd5c5a6619fc6f75db0549adbd35f5e59b12d0312ad55234ec6986cf84b69767aa157e52e2d97
SHA1 hash: 262fcead2cc63dc85138611352ced74ac0524de5
MD5 hash: c7607cc0873da44ef1aa8b9982de0e28
humanhash: arkansas-twenty-indigo-lithium
File name:SecuriteInfo.com.Win32.PWSX-gen.25481.5305
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:988'160 bytes
First seen:2023-10-03 10:38:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:Md7Ax5uP1ob3JxM2BDJBNjvI21CAzkQCq9uLtVEYI7Pel+A725enXFM:2MxA1YxM2xtI2AKLCq+VEYI6ljRXm
Threatray 2'631 similar samples on MalwareBazaar
TLSH T118250160E6BACDAED4350ABC503056110DB7AFCA0B12EBCC581D7DBDA830703A799937
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon b0cf4a4c4c4ccfb0 (31 x Formbook, 20 x RemcosRAT, 18 x AgentTesla)
Reporter SecuriteInfoCom
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
316
Origin country :
FR FR
Vendor Threat Intelligence
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Win32.PWSX-gen.25481.5305.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Launching a process
Restart of the analyzed sample
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
remcos
Link:
https://www.filescan.io/uploads/651bef4b5befb75cf35f9053/reports/0982e321-3f48-45ea-b599-39394c5efb0c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2
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:
Malicious Packer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8f74c7d4-d097-45e3-b95a-dd178d6d4579
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1318606
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 modify clipboard data
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1318606 Sample: SecuriteInfo.com.Win32.PWSX... Startdate: 03/10/2023 Architecture: WINDOWS Score: 100 46 Multi AV Scanner detection for domain / URL 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 11 other signatures 2->52 7 TJQZcCiCW.exe 5 2->7         started        10 SecuriteInfo.com.Win32.PWSX-gen.25481.5305.exe 7 2->10         started        process3 file4 56 Multi AV Scanner detection for dropped file 7->56 58 Contains functionality to bypass UAC (CMSTPLUA) 7->58 60 Machine Learning detection for dropped file 7->60 68 4 other signatures 7->68 13 schtasks.exe 7->13         started        15 TJQZcCiCW.exe 7->15         started        38 C:\Users\user\AppData\Roaming\TJQZcCiCW.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp5236.tmp, XML 10->40 dropped 62 Uses schtasks.exe or at.exe to add and modify task schedules 10->62 64 Adds a directory exclusion to Windows Defender 10->64 66 Injects a PE file into a foreign processes 10->66 17 SecuriteInfo.com.Win32.PWSX-gen.25481.5305.exe 3 16 10->17         started        22 powershell.exe 21 10->22         started        24 powershell.exe 21 10->24         started        26 2 other processes 10->26 signatures5 process6 dnsIp7 28 conhost.exe 13->28         started        42 167.114.189.33, 2404, 49784 OVHFR Canada 17->42 44 geoplugin.net 178.237.33.50, 49785, 80 ATOM86-ASATOM86NL Netherlands 17->44 36 C:\ProgramData\remcos\logs.dat, data 17->36 dropped 54 Installs a global keyboard hook 17->54 30 conhost.exe 22->30         started        32 conhost.exe 24->32         started        34 conhost.exe 26->34         started        file8 signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2/
Threat name:
Win32.Trojan.Znyonm
Create hunting rule
Status:
Malicious
First seen:
2023-10-03 10:39:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6tb72dqagjvzioisidlpiyhpeua7lgc6nye5hyxeokcedsiuc7ra._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
49e64d72d5ed4fb7967da4b6851d94cdceffe4ba0316587767a13901fe580239
RemcosRAT
4f827733e06b0ec1cb7edf3b3982487e6be429842e0cb09ff7900771ab58e8bb
RemcosRAT
8a7703a7a13f95e6e58aac075b70bc322355e7f683e04824c17407a1881838cf
RemcosRAT
a940a2266d54aab5f787e6b9a3889fb3c615d9754de46ad25a7ba3a1b5fe9109
RemcosRAT
b2fc36f6f4e72e2700737425abab14e4d75a190195c7cd8397cb9ae9761ec34b
RemcosRAT
ba82a2d12cfee47fcfab1e288a80e1792e6a8e8260e7582b007221918aba0310
RemcosRAT
bd9df3adf1e6c84fcab2206d63d2f02e3f1ce1b715c09459d21ff47c09cac2f8
RemcosRAT
+ 2'621 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/231003-mpyyeahh8w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Remcos
Malware Config
C2 Extraction:
167.114.189.33:2404
Unpacked files
SH256 hash:
0c65cc63943ef047c4604d51017264cb699337750d110c3b9558c3b6d9b218d0
MD5 hash:
d3dbba0102a129dfd4009d5886d9f11b
SHA1 hash:
8e9a6b10047ba4e99e82a9b09bd79335830e74a6
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/6dedbc2c-4ea1-4bb8-8b2b-9dc0250ff8c3/
Parent samples :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 hash:
5e47c6b39944648f88b88af1a9cb6be78301c3ea99b0f0fda1c5e9425fef7827
MD5 hash:
2daeb70d113792fb33a3565999d7692c
SHA1 hash:
8178f96fd80fa2a046d10a132e321fb70fb0b7b2
Link:
https://www.unpac.me/results/6dedbc2c-4ea1-4bb8-8b2b-9dc0250ff8c3/
SH256 hash:
7ec118e70613ce2d9aee29cda2918ca710dde346c68d4da75c2ea0402e6d4391
MD5 hash:
1622a62bf6805b2dca82a8632eceac71
SHA1 hash:
071b72a5a1231149dfe4b9fcfa3a6ee49265ab7c
Link:
https://www.unpac.me/results/6dedbc2c-4ea1-4bb8-8b2b-9dc0250ff8c3/
SH256 hash:
8eb7e221889d3e791816a1505e8a9d6141ea9a83ee76c4234855dab99ea40652
MD5 hash:
64f68838f429e48a82de5e196868bcbc
SHA1 hash:
00ee546dd9171c0ccc7ef2aa8a0be785922a7b3c
Link:
https://www.unpac.me/results/6dedbc2c-4ea1-4bb8-8b2b-9dc0250ff8c3/
SH256 hash:
f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2
MD5 hash:
c7607cc0873da44ef1aa8b9982de0e28
SHA1 hash:
262fcead2cc63dc85138611352ced74ac0524de5
Link:
https://www.unpac.me/results/6dedbc2c-4ea1-4bb8-8b2b-9dc0250ff8c3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f4c3fd0e0032/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/f4c3fd0e00326b94391240d6f460ef2501f5985e6e09d3e2e4728441c91417e2

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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.

Comments