MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d. 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: 16


Intelligence 16 IOCs YARA 15 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d
SHA3-384 hash: 190168b7c8261d080eaeec62f6b02fd3604f4c54f94827af7c62193de337c0c573440dabfae0d8d31b795259e0fd791e
SHA1 hash: 3013724dbc0bedda4bc2528ba01c7495f26614b1
MD5 hash: 85e8ae98556d7927fa40c5cba4e4a16a
humanhash: september-oregon-alaska-utah
File name:RFQ 2290.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'379'840 bytes
First seen:2022-10-05 03:22:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:WqHo1sfbYnNTHIsxcb5V9zpn8jte3q/3uASeA8vOE/dkJw1:WqIafENUkcb5rpn8Y3q/eAYU
Threatray 2'927 similar samples on MalwareBazaar
TLSH T1B055013716EA9F07D11E66B8A0D0D2B667A98C10F167C3DB9FC66C5FB08B725C620352
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% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
297
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d.exe
Verdict:
Malicious activity
Analysis date:
2022-10-05 04:45:15 UTC
Tags:
trojan rat remcos
Link:
https://app.any.run/tasks/bc2897dd-16b2-44c0-b5cb-78b62476e97e

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/316699/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.PackedNET.389.UNOFFICIAL
Create hunting rule

Win.Dropper.LokiBot-9971787-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/633cf89878d4acb349f4c979/reports/aba0c97b-6c52-4a64-b69e-3b2f88d061e7/overview
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:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0cc97d75-c074-4a25-ab6d-43b6cd035e2d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1083829
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 716386 Sample: RFQ 2290.exe Startdate: 05/10/2022 Architecture: WINDOWS Score: 100 44 valvesco.duckdns.org 2->44 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 56 11 other signatures 2->56 8 RFQ 2290.exe 7 2->8         started        12 iDKZenUzizmrGT.exe 5 2->12         started        signatures3 process4 file5 36 C:\Users\user\AppData\...\iDKZenUzizmrGT.exe, PE32 8->36 dropped 38 C:\...\iDKZenUzizmrGT.exe:Zone.Identifier, ASCII 8->38 dropped 40 C:\Users\user\AppData\Local\...\tmp64A8.tmp, XML 8->40 dropped 42 C:\Users\user\AppData\...\RFQ 2290.exe.log, ASCII 8->42 dropped 58 Adds a directory exclusion to Windows Defender 8->58 14 RFQ 2290.exe 2 2 8->14         started        18 powershell.exe 17 8->18         started        20 powershell.exe 21 8->20         started        22 schtasks.exe 1 8->22         started        60 Multi AV Scanner detection for dropped file 12->60 62 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 12->62 64 Machine Learning detection for dropped file 12->64 24 schtasks.exe 12->24         started        26 iDKZenUzizmrGT.exe 12->26         started        signatures6 process7 dnsIp8 46 valvesco.duckdns.org 81.161.229.148, 49703, 49704, 49705 CMCSUS Germany 14->46 48 192.168.2.1 unknown unknown 14->48 66 Installs a global keyboard hook 14->66 28 conhost.exe 18->28         started        30 conhost.exe 20->30         started        32 conhost.exe 22->32         started        34 conhost.exe 24->34         started        signatures9 process10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d/
Threat name:
Win32.Spyware.SnakeLogger
Create hunting rule
Status:
Malicious
First seen:
2022-09-27 05:36:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
22 of 26 (84.62%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7bi4zwe67d4ofbsi75qapcjwj2ok6xcsfjpheogo4ym2ekomqioq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
20d06c9366037f9c7d08d843ddcb74e264accf481dbefd7b1f77669abb4d9be9
RemcosRAT
2a6cd5b04a1f823de82896e8d2758ce91498ee9231032ae946363477ccc7701a
RemcosRAT
2f883759c2fd1aefb2578344f0ed2de3540ed71bb325ad6f20d58540cc10f79d
RemcosRAT
3309420da4cc8e91be71bd96a482fd2b544e2b1dd0d5a8e075b3cfe9bac1957f
RemcosRAT
58d5e75956574ad0a933ef2c4edaeeb7f601d3360e14ea8bb9a3c2d19e71f974
RemcosRAT
70d6e951bd55244ca98fe522042be5209783c38dbe261d9f4c577da2cc6939cd
RemcosRAT
825624416b00297bbc9a9544a99b2f5d32093307933009625d386b88c413405c
RemcosRAT
be4f9d4697e47ff2b6d73b0949a39be6f9defba32f4f4070673efc84de4c6113
RemcosRAT
+ 2'917 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:new rem stub evasion rat
Link:
https://tria.ge/reports/221005-dxgjnadbg7/
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
Maps connected drives based on registry
Checks BIOS information in registry
Checks computer location settings
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Remcos
Malware Config
C2 Extraction:
valvesco.duckdns.org:5050
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/964a14ab-43d4-4396-9e54-9c285a333aba
Unpacked files
SH256 hash:
c289ec2f57b341220c33145c8b6474d1011d387ab39dacb7b17d69c359548448
MD5 hash:
bd2adeed00397e7545a539d761458af9
SHA1 hash:
b5a1cbca39c6923308f914accf611771996f7097
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
Parent samples :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 hash:
6cf8476b32e0c7443ad9464bf2ed39af92a2098fdf21976af45b2e66f3db31f6
MD5 hash:
62670d7379de739a3cdede2cf51bf576
SHA1 hash:
8b903ce13e3622f8d86398dbd4cf5d8894f0d3cf
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
SH256 hash:
2470b39032f6182252039c88199016566b0de30c6aa02163a143427afedd12af
MD5 hash:
c3a1924684ca30ed22234ce1d9111dfc
SHA1 hash:
7347706241422758c06440fd6044ae4e042b456b
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
SH256 hash:
b6458fc63e5049b6e4947b6f18505954f5ffca2ffb3120d93c9150bf6260ca80
MD5 hash:
01b2d9a3dcdf314f5dc2a6a578673453
SHA1 hash:
38387a6e98e69914ac2325cec8f0112438c3c429
Detections:
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
SH256 hash:
f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d
MD5 hash:
85e8ae98556d7927fa40c5cba4e4a16a
SHA1 hash:
3013724dbc0bedda4bc2528ba01c7495f26614b1
Link:
https://www.unpac.me/results/e10e5690-8972-42cd-a778-87855b2127df/
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/f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d

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:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:RansomwareTest4
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest5
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest6
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:RansomwareTest7
Create hunting rule
Author:Daoyuan Wu
Description:Test Ransomware YARA rules
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Malspam

RemcosRAT

Executable exe f851ccd89ef8f8e28648ff600789364e9caf5c522a5e7238cee619a229cc821d

(this sample)

  
Dropped by
RemcosRAT
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/316699/

Comments