MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b
SHA3-384 hash: 42ee49b440710ac7b3f80b519d958e8fe6d9945c91b294d1eaaa0ddafffad4ba869f0108519c926600461173aeb4865b
SHA1 hash: 6e2220145b9c30e267c3819f4ad5fabccf48842f
MD5 hash: 7b0c1ca4cd44af568c567560ed0d5a23
humanhash: glucose-september-alaska-lithium
File name:RFQ_0098W662L9.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'016'464 bytes
First seen:2023-12-11 15:01:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 66fcdd6338ffed276966867e7cf86116 (9 x GuLoader, 2 x AgentTesla, 2 x RemcosRAT)
ssdeep 24576:tNNLHQu+Ml8c2X7mNqPDjnzB0yKAz4WmovS/ST0hX2CnG:j+zmXyKty8wim+G
TLSH T1BA25BF2CBAB653EEF952D73D29C642ADF5E02E342915090F7671BF190B326958FC220D
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon fcec78787870e4c0 (4 x Formbook, 2 x GuLoader, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT signed

Code Signing Certificate

Organisation:Mewl
Issuer:Mewl
Algorithm:sha256WithRSAEncryption
Valid from:2023-04-30T10:10:01Z
Valid to:2026-04-29T10:10:01Z
Serial number: 73abdedaf5bb8d9e54437602882f346552da878d
Thumbprint Algorithm:SHA256
Thumbprint: ea24555250939fa54000f9d33b14e2ca8dd00d4660252ea3d7b4d1c63b598b06
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
236
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
guloader
Create hunting rule
ID:
1
File name:
RFQ_0098W662L9.exe
Verdict:
Malicious activity
Analysis date:
2023-12-11 16:59:14 UTC
Tags:
guloader loader trojan rat remcos remote stealer keylogger
Link:
https://app.any.run/tasks/57354b1d-bb80-4197-9c41-8832fc636bf7

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/465424/
Detection(s):
SecuriteInfo.com.Win32.Malware-gen.881.29896.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Creating a file in the Windows subdirectories
Searching for the window
Searching for the Windows task manager window
Launching a process
Creating a process with a hidden window
Sending an HTTP GET request
Using the Windows Management Instrumentation requests
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control installer lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/65772a0e3f60a810348f323e/reports/38027296-31fe-4371-b5f6-187cca7b18f0/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0e3e4c53-810e-4bfe-9fbd-5c276ca43928
Result
Threat name:
Remcos, GuLoader
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1359745
Signature
Antivirus detection for URL or domain
Contains functionality to modify clipboard data
Found suspicious powershell code related to unpacking or dynamic code loading
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Maps a DLL or memory area into another process
Powershell drops PE file
Sigma detected: Remcos
Snort IDS alert for network traffic
Suspicious powershell command line found
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)
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Remcos RAT
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1359745 Sample: RFQ_0098W662L9.exe Startdate: 12/12/2023 Architecture: WINDOWS Score: 100 45 geoplugin.net 2->45 47 Snort IDS alert for network traffic 2->47 49 Antivirus detection for URL or domain 2->49 51 Yara detected GuLoader 2->51 53 6 other signatures 2->53 9 RFQ_0098W662L9.exe 5 41 2->9         started        signatures3 process4 file5 33 C:\Users\user\AppData\Local\...njoyers.Ele, ASCII 9->33 dropped 35 C:\Users\user\AppData\Local\...\nsExec.dll, PE32 9->35 dropped 65 Suspicious powershell command line found 9->65 13 powershell.exe 19 9->13         started        signatures6 process7 file8 37 C:\Users\user\AppData\...\RFQ_0098W662L9.exe, PE32 13->37 dropped 67 Writes to foreign memory regions 13->67 69 Maps a DLL or memory area into another process 13->69 71 Found suspicious powershell code related to unpacking or dynamic code loading 13->71 73 Powershell drops PE file 13->73 17 wab.exe 3 15 13->17         started        22 conhost.exe 13->22         started        signatures9 process10 dnsIp11 39 204.44.78.196, 49709, 80 ASN-QUADRANET-GLOBALUS United States 17->39 41 185.202.173.178, 2404, 49710, 49711 UNREAL-SERVERSUS Netherlands 17->41 43 geoplugin.net 178.237.33.50, 49713, 80 ATOM86-ASATOM86NL Netherlands 17->43 31 C:\ProgramData\remcos\logs.dat, data 17->31 dropped 55 Maps a DLL or memory area into another process 17->55 57 Installs a global keyboard hook 17->57 24 wab.exe 1 17->24         started        27 wab.exe 1 17->27         started        29 wab.exe 14 17->29         started        file12 signatures13 process14 signatures15 59 Tries to steal Instant Messenger accounts or passwords 24->59 61 Tries to harvest and steal browser information (history, passwords, etc) 24->61 63 Tries to steal Mail credentials (via file / registry access) 27->63
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b/
Threat name:
Win32.Trojan.Remcosrat
Create hunting rule
Status:
Malicious
First seen:
2023-12-11 08:05:20 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
12 of 23 (52.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lko7s7ieuhlwkbx3rr4hjbhl2ob2miikchrpcdybxcyiic6hmfnq._file
Verdict:
unknown
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost collection downloader rat
Link:
https://tria.ge/reports/231211-sm1bcabfe2/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Loads dropped DLL
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
185.202.173.178:2404
Unpacked files
SH256 hash:
9d5381858e9384b98d79aac9d4734370db928dab4a9964c8163c3819bdff4d22
MD5 hash:
7d465dc57978cea8971b565c9ad8a1a0
SHA1 hash:
d47aa8e942308c182fead31b9fdd09dbb55600c6
Link:
https://www.unpac.me/results/d7203869-e122-4fac-b82f-e8281ac2017f/
SH256 hash:
7a1a8f8cef4d46e9196606b28fa92f30c5d36b6bc325e3005fc5204f61808736
MD5 hash:
574682608a9b24979cd3fb6f196f5559
SHA1 hash:
46a3295ddf42cd837835141d9274e5cb2ea29999
Link:
https://www.unpac.me/results/d7203869-e122-4fac-b82f-e8281ac2017f/
SH256 hash:
5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b
MD5 hash:
7b0c1ca4cd44af568c567560ed0d5a23
SHA1 hash:
6e2220145b9c30e267c3819f4ad5fabccf48842f
Link:
https://www.unpac.me/results/d7203869-e122-4fac-b82f-e8281ac2017f/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5a9df97d04a1/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/5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b

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:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

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

Malspam

RemcosRAT

Executable exe 5a9df97d04a1d76506fb8c787484ebd383a6210a11e2f10f01b8b0840bc7615b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/465424/

Comments