MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5
SHA3-384 hash: 60e24bae4cc613ab59ceb18c96b673f542969da6300cb7e1469387914234d23ed06747d503840b6f4bebb815dd8918f1
SHA1 hash: 3559ff98f63ca3102dbd89c16eebf92bb9639a18
MD5 hash: 057a625799abaa12a80c3e1d011c3159
humanhash: colorado-blossom-maine-march
File name:PO-22385.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:984'064 bytes
First seen:2024-02-07 09:31:33 UTC
Last seen:2024-02-07 11:35:24 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:/4x7nA7KdHBQ0SYsQseVfBSGW+wnAfl8f2LH7n:/4x7nA6HBQ0GQtVf8GsnOPL
Threatray 680 similar samples on MalwareBazaar
TLSH T16E25129136AA8A99ED2F17B22D76A14002B73D4C94F6C60D64D93E3F36B33035856F27
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 68d8d8c8d9a9c1d9 (96 x SnakeKeylogger, 67 x RemcosRAT, 66 x Formbook)
Reporter lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
277
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5.exe
Verdict:
Malicious activity
Analysis date:
2024-02-07 10:04:36 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/d2bcfe1b-8b04-4849-a2b9-9ddd2263b87c

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/475086/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.32495.8201.UNOFFICIAL
Create hunting rule

Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65c34e1f127ab8eb4100cb8c/reports/e45928a9-e152-47ea-ad1b-42990dd49530/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5
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:
KeyBase
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bddcd411-496c-4901-a5cf-c13c2803342f
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/1388196
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
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 domain / URL
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: 1388196 Sample: PO-22385.exe Startdate: 07/02/2024 Architecture: WINDOWS Score: 100 51 geoplugin.net 2->51 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 Malicious sample detected (through community Yara rule) 2->61 63 14 other signatures 2->63 8 PO-22385.exe 7 2->8         started        12 zwBThK.exe 5 2->12         started        signatures3 process4 file5 47 C:\Users\user\AppData\Roaming\zwBThK.exe, PE32 8->47 dropped 49 C:\Users\user\AppData\Local\...\tmpB4A4.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 zwBThK.exe 12->26         started        signatures6 process7 dnsIp8 53 198.27.121.194, 2024, 49707, 49709 OVHFR Canada 14->53 55 geoplugin.net 178.237.33.50, 49712, 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 4 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/b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-07 08:43:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w42pg3o35k23gl7eiahexqp44r6jv622ysxa3ijcg6tbprsqotcq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
063e8dc308fea1f6ab248e3704894c8311b85959301e6389ae5ee55726e3ba2a
RemcosRAT
2db991b9ae725ec59f9a29654e4c5f8d2bf363662cfa8d271a8692fea4883744
RemcosRAT
7d5fb292b4477237a05a35eb135a13c9f6d1177987217e94c3558b91fa97c285
RemcosRAT
82703bb5de0f44978e23f29a593094ae3951c3a623bb40bfd54238978e3c8819
RemcosRAT
d5bc991d8b0e51e45a1b9b9baa71dda7f7dfd8e769e3a641d0cda1077bd01b04
RemcosRAT
fdbce12941b40f0a4be868f3034eee854add3b2193fd7b6cc9df4c2c1fec1778
RemcosRAT
+ 670 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-lhpwgsfdf5/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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/336cab9c-3c14-4b63-9334-f0a726e8b5cd/
Parent samples :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 hash:
fa710b5a429f2b5bd2966d4ffc6f752f12077ccadcdfb846879e1e73b8c8a32e
MD5 hash:
a4d95d4da560be99af5e3ac3f4f87a9a
SHA1 hash:
5c6bdeeab434291c37235f17512dc983dedcbe2e
Link:
https://www.unpac.me/results/336cab9c-3c14-4b63-9334-f0a726e8b5cd/
SH256 hash:
38e0c6d980305c75802c29c0296f16fe0e9d8ef0c387580096acbfb914a805a3
MD5 hash:
6d6dc9776d8f8feaf6f35048c87e3c85
SHA1 hash:
2a93098d71c171354d458ecabd97c5b2aca00cf4
Link:
https://www.unpac.me/results/336cab9c-3c14-4b63-9334-f0a726e8b5cd/
SH256 hash:
4396c1c899c6f224b8f81a9e16917c6e608b8a0a9b11854ba1dd0bb9010bb6d0
MD5 hash:
795e061bb1ae9b340a208963a2435544
SHA1 hash:
03fe269a7a0c85742ce97d5264ecb12f7e5add13
Link:
https://www.unpac.me/results/336cab9c-3c14-4b63-9334-f0a726e8b5cd/
SH256 hash:
b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5
MD5 hash:
057a625799abaa12a80c3e1d011c3159
SHA1 hash:
3559ff98f63ca3102dbd89c16eebf92bb9639a18
Link:
https://www.unpac.me/results/336cab9c-3c14-4b63-9334-f0a726e8b5cd/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b734f36ddbea/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/b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5

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:NETexecutableMicrosoft
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 b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475086/

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