MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429
SHA3-384 hash: 6ee0c311a71fe38aa3e5e4767287e7bb44195a0141cd4310888e5d8b2e8d3ff3e485dac5384724c3be648047d603691c
SHA1 hash: 56d0b1a5047f7f247a26002f1e9d6a2ddf834262
MD5 hash: 823328aa4d9437a6c338e145a6642a06
humanhash: fanta-jupiter-johnny-finch
File name:Optima Bank_ Төлөм көчүрмөсүpdf.bat
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:891'392 bytes
First seen:2023-07-19 06:21:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:A0tGByBT/FzVEbaoTAGNdqHKZh6Qf8OGXAWfbHAL:nfhSa5GPt/8OEXcL
TLSH T10615F28C67F0412ADB9E07B97878A30CD26DE49F2163938EC448BAA93735674C9F1753
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 64e4c8d0f0e8d4d4 (56 x AgentTesla, 7 x RemcosRAT, 5 x NanoCore)
Reporter abuse_ch
Tags:bat exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
Optima Bank_ Төлөм көчүрмөсүpdf.bat
Verdict:
Malicious activity
Analysis date:
2023-07-19 06:24:57 UTC
Tags:
rat remcos remote stealer
Link:
https://app.any.run/tasks/bb790c02-4a4c-4dcd-9bec-f93d692bc02b

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/424471/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.22162.31954.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429
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/ebb211a3-f0a0-4cfd-9cff-7cd6d977477c
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
spre.phis.troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1275682
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to inject code into remote processes
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
Drops PE files to the startup folder
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Copy file to startup via Powershell
Sigma detected: Remcos
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)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1275682 Sample: fpdf.bat.exe Startdate: 19/07/2023 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 11 other signatures 2->48 7 fpdf.bat.exe 3 2->7         started        process3 file4 30 C:\Users\user\AppData\...\fpdf.bat.exe.log, ASCII 7->30 dropped 56 Bypasses PowerShell execution policy 7->56 58 Writes to foreign memory regions 7->58 60 Allocates memory in foreign processes 7->60 62 Injects a PE file into a foreign processes 7->62 11 RegAsm.exe 3 13 7->11         started        15 powershell.exe 14 7->15         started        signatures5 process6 dnsIp7 36 23.227.196.61, 49690, 49691, 8957 HVC-ASUS United States 11->36 38 geoplugin.net 178.237.33.50, 49692, 80 ATOM86-ASATOM86NL Netherlands 11->38 64 Contains functionality to bypass UAC (CMSTPLUA) 11->64 66 Contains functionality to steal Chrome passwords or cookies 11->66 68 Contains functionality to inject code into remote processes 11->68 74 4 other signatures 11->74 18 RegAsm.exe 1 11->18         started        21 RegAsm.exe 1 11->21         started        23 RegAsm.exe 11->23         started        27 35 other processes 11->27 32 C:\Users\user\AppData\...\anydesk.exe.exe, PE32 15->32 dropped 34 C:\Users\...\anydesk.exe.exe:Zone.Identifier, ASCII 15->34 dropped 70 Drops PE files to the startup folder 15->70 72 Powershell drops PE file 15->72 25 conhost.exe 15->25         started        file8 signatures9 process10 dnsIp11 50 Tries to steal Instant Messenger accounts or passwords 18->50 52 Tries to steal Mail credentials (via file / registry access) 18->52 40 192.168.2.1 unknown unknown 27->40 54 Tries to harvest and steal browser information (history, passwords, etc) 27->54 signatures12
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429/
Threat name:
ByteCode-MSIL.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2023-07-19 02:40:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
23 of 25 (92.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=f5xy2ch46jz7u6nxue6twjgu64n3zhzp35uwll6xg7gmbvjrmquq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection rat spyware stealer
Link:
https://tria.ge/reports/230719-g4w5gagb76/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Reads user/profile data of web browsers
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Remcos
Malware Config
C2 Extraction:
23.227.196.61:8957
Unpacked files
SH256 hash:
dc3989cd43b6ffcb90276a1701b3279de4dbfa0fbc580834ae1475ea918219f2
MD5 hash:
3e901b494893cfb35e116fc24fdeb205
SHA1 hash:
66177d130c2d33e778921bba72febb0d1e91ac2c
Link:
https://www.unpac.me/results/bcd20401-214d-4335-9718-3abe737a0bf2/
SH256 hash:
65e47578274d16be1be0f50767bad0af16930df43556dd23d7ad5e4adc2bcbe3
MD5 hash:
848b847cd19805d19235b5acb8ef2bef
SHA1 hash:
38100751a4ae45a143232cbacf9bb441b31fb211
Link:
https://www.unpac.me/results/bcd20401-214d-4335-9718-3abe737a0bf2/
SH256 hash:
1ef1ca610a3ab76d1757a28cb8ee19ef5d9285518dfd7edc1a634a790287cca1
MD5 hash:
02d39bad58c5d8fb39725949431a956d
SHA1 hash:
1dbb863bee45b6491c5d79873f7beb164e7257a4
Detections:
Remcos
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/bcd20401-214d-4335-9718-3abe737a0bf2/
Parent samples :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 hash:
2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429
MD5 hash:
823328aa4d9437a6c338e145a6642a06
SHA1 hash:
56d0b1a5047f7f247a26002f1e9d6a2ddf834262
Link:
https://www.unpac.me/results/bcd20401-214d-4335-9718-3abe737a0bf2/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2f6f8d08fcf2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
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_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
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:QbotStuff
Create hunting rule
Author:anonymous
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:TeslaCryptPackedMalware
Create hunting rule
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
Rule name:yara_template
Create hunting rule

File information

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

Malspam

RemcosRAT

Executable exe 2f6f8d08fcf273fa79b7a13d3b24d4f71bbc9f2fdf6965afd737ccc0d5316429

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/424471/

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