MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63. 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: 27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63
SHA3-384 hash: ce703fc4c5620532cf5efef71e7c35c4f45d2c09625d2f067e46374da617dcbbaeacae2a4d70f91394151d44d8506093
SHA1 hash: c87ab5f9ec99bc7cfcb88cd93c63ce7e1dd6c89a
MD5 hash: 39a15ff28079a2f70242eb356aa1f47f
humanhash: moon-crazy-dakota-butter
File name:PO-22385.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'069'056 bytes
First seen:2024-02-08 07:33:48 UTC
Last seen:2024-02-08 09:33:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 24576:C+NxcVG654YhpeOdZyBWT/VimJaYKTx2+S:Vx765jeO6WkRYKTxX
Threatray 629 similar samples on MalwareBazaar
TLSH T16D35EF03795DC32ED56947F0F03142F082A1AF27C5A1EA67BAD5FCAE357178C0621ADA
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 lowmal3
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
3
# of downloads :
281
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63.exe
Verdict:
Malicious activity
Analysis date:
2024-02-08 08:02:21 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/e13c51f8-641c-4eea-b98e-7a5efd5d873d

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/475324/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.11539.32271.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed remcos
Link:
https://www.filescan.io/uploads/65c483f3186112aa12a3ada0/reports/940cd04c-5723-4230-bf56-baf6673853e3/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63
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/e7ca91cd-e4b7-408b-8c2e-bf6e88b66eac
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/1388881
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
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: 1388881 Sample: PO-22385.exe Startdate: 08/02/2024 Architecture: WINDOWS Score: 100 47 geoplugin.net 2->47 53 Multi AV Scanner detection for domain / URL 2->53 55 Found malware configuration 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 12 other signatures 2->59 8 PO-22385.exe 7 2->8         started        12 XcQOOWOfleLFvN.exe 5 2->12         started        signatures3 process4 file5 43 C:\Users\user\AppData\...\XcQOOWOfleLFvN.exe, PE32 8->43 dropped 45 C:\Users\user\AppData\Local\...\tmp3CF7.tmp, XML 8->45 dropped 61 Tries to steal Mail credentials (via file registry) 8->61 63 Uses schtasks.exe or at.exe to add and modify task schedules 8->63 65 Adds a directory exclusion to Windows Defender 8->65 67 Injects a PE file into a foreign processes 8->67 14 PO-22385.exe 3 14 8->14         started        18 powershell.exe 22 8->18         started        20 schtasks.exe 1 8->20         started        69 Multi AV Scanner detection for dropped file 12->69 71 Contains functionality to bypass UAC (CMSTPLUA) 12->71 73 Contains functionalty to change the wallpaper 12->73 75 4 other signatures 12->75 22 schtasks.exe 1 12->22         started        24 XcQOOWOfleLFvN.exe 12->24         started        signatures6 process7 dnsIp8 49 198.27.121.194, 2024, 49707, 49709 OVHFR Canada 14->49 51 geoplugin.net 178.237.33.50, 49712, 80 ATOM86-ASATOM86NL Netherlands 14->51 83 Tries to harvest and steal browser information (history, passwords, etc) 14->83 85 Maps a DLL or memory area into another process 14->85 26 PO-22385.exe 1 14->26         started        29 PO-22385.exe 14->29         started        31 PO-22385.exe 14 14->31         started        33 conhost.exe 14->33         started        35 WmiPrvSE.exe 18->35         started        37 conhost.exe 18->37         started        39 conhost.exe 20->39         started        41 conhost.exe 22->41         started        signatures9 process10 signatures11 77 Tries to steal Instant Messenger accounts or passwords 26->77 79 Tries to steal Mail credentials (via file / registry access) 26->79 81 Tries to harvest and steal browser information (history, passwords, etc) 29->81
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-02-08 06:58:32 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
12 of 24 (50.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=e5zbyvqyowdwnhuqg7kmon45vxundf63fprmqw5vmf3pjzmdjzrq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
063e8dc308fea1f6ab248e3704894c8311b85959301e6389ae5ee55726e3ba2a
RemcosRAT
455081f6fed14906ac4cbd035d37910a2d06776371f064e8dd94700f120ed6fd
RemcosRAT
50493a0bad941676566a58131684cefe655e9913366257e8f25092f0914eb3fa
RemcosRAT
b734f36ddbeab5b32fe4400e4bc1fce47c9afb5ac4ae0da12237a617c65074c5
RemcosRAT
c08cb69aed7f30fe924a3fee014f33aabadaf11644e304c25b28f64c4fa09c48
RemcosRAT
f28b0dc8310dfb51d94091e8d001c1f59dbabb57fc19bbad1cef370eceaa38dd
RemcosRAT
+ 619 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/240208-jd4gzaefem/
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/3b006b3b-b0d1-4f86-899b-a9628ef1a3c8/
Parent samples :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 hash:
5cc0c24f57d98dbf6eedee06152902ac191960812054c7c4f57bb79b1d7f61de
MD5 hash:
6bade2cfb178c598634231d93d6a9505
SHA1 hash:
67518a584db0b717cad69aaeb8255273c2b82b7e
Link:
https://www.unpac.me/results/3b006b3b-b0d1-4f86-899b-a9628ef1a3c8/
SH256 hash:
f53bef4888dc4cdbd300fe9164be1619415c151c916537efb20f1b42bb5980b9
MD5 hash:
0cde708a2f1b8399849ddb74560a4e7c
SHA1 hash:
0e1ac56188859701235d150aec8e96b2ffabc5ef
Link:
https://www.unpac.me/results/3b006b3b-b0d1-4f86-899b-a9628ef1a3c8/
SH256 hash:
3dff12ee9183149386bfb90aa8bb671f57201de4e1157b79dd22fea45d837562
MD5 hash:
02e3968ff81ca78205efb912d981ea81
SHA1 hash:
0846251d2774064940f11617e1b15b2eb63834aa
Link:
https://www.unpac.me/results/3b006b3b-b0d1-4f86-899b-a9628ef1a3c8/
SH256 hash:
27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63
MD5 hash:
39a15ff28079a2f70242eb356aa1f47f
SHA1 hash:
c87ab5f9ec99bc7cfcb88cd93c63ce7e1dd6c89a
Link:
https://www.unpac.me/results/3b006b3b-b0d1-4f86-899b-a9628ef1a3c8/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/27721c561875/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/27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63

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.

Malspam

RemcosRAT

Executable exe 27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/475324/

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