MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4. 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: 13


Intelligence 13 IOCs YARA 11 File information Comments

SHA256 hash: 41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
SHA3-384 hash: ad8bb274521854dceb4a781548f34c62b976f3144cb2c62cd8df9df3325e5a9463cb2dc5338b54851c0ea3790525c0b6
SHA1 hash: 9761138927c2146fc13f1f7412c38a08713eed15
MD5 hash: f1484465f0d58e374932d04f7855ecf4
humanhash: pasta-speaker-north-mississippi
File name:41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
Download: download sample
Signature RemcosRAT
File size:870'400 bytes
First seen:2021-08-31 10:24:20 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 12288:2kLHuNG6NUzpL/tIYXJ21WtG1HI8mhgDPzfM7OPcO3cOm4fHhd8lgkds73K:1LHutNipZIXv1/cOPzZPcOPm4pd8lJ
Threatray 514 similar samples on MalwareBazaar
TLSH T1640523287BFC42A8E77BDF37A6F63108963DF325AC1BD01525D24A46CDC6B80D9D142A
Reporter JAMESWT_WT
Tags:exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
128
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
Verdict:
Malicious activity
Analysis date:
2021-08-31 10:51:24 UTC
Tags:
rat remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Connection attempt
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
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
Detected Remcos RAT
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-07-01 06:41:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
45.137.22.101:5888
Unpacked files
SH256 hash:
e331e0721190e74691727fd3d9a7e4c6b6258e758124c5a83d461897843f3990
MD5 hash:
a31e4ac95dbf76e429ecfe50a493cac6
SHA1 hash:
6bfb585abc967d50782d25ce463d645fe9469139
SH256 hash:
5bede9eedf6ae6df5a9d587c116c9583b31474c159c2b53486b000093cb3fde6
MD5 hash:
072eeac61b35d3f09edee4ff4f80f52d
SHA1 hash:
696fd9905a47e526470c2e234fef32f1ec1b74ad
SH256 hash:
c06a1876a4b25de6e34e28430dc7c467e0f8466e447468e30cf2b284079de0b8
MD5 hash:
3a8f8b3d295b93b7b1ca7ffabdb694fa
SHA1 hash:
1d78561fb5f1d69b14faf2130eabb8d825f9fd35
Detections:
win_remcos_g0
SH256 hash:
41ed87725575a97d3f1a04554cb78dd3fb973e209950d2f7c54168626ce57ef4
MD5 hash:
f1484465f0d58e374932d04f7855ecf4
SHA1 hash:
9761138927c2146fc13f1f7412c38a08713eed15
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:ach_RemcosRAT
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

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