MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 941d7828d89da175afca52906a1e519707a09685f30332937917505fa8999f87. 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: 9


Intelligence 9 IOCs YARA 7 File information Comments

SHA256 hash: 941d7828d89da175afca52906a1e519707a09685f30332937917505fa8999f87
SHA3-384 hash: 78c2faeb4badd76e8d19aec9c8218c29bdb122cc153fd0c3561a310a5b1026ae28b8a8d970a06379a49567713a6a223d
SHA1 hash: 5ead7b026aa51ba272548be89118991378f54fb3
MD5 hash: 53ee3e51b223773a7db458eba4bd0528
humanhash: fix-beryllium-uncle-fix
File name:382410201721.exe
Download: download sample
Signature RemcosRAT
File size:995'840 bytes
First seen:2021-02-17 16:18:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'611 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:bmQWhajfdJLszbiBtI4h9vBGY+RC+dCmFZ59QM8/z+Tw6MapxpYDVp+aN/trfwjY:bk6fdJoqBBy9C0CmAdzBtQXofgxy
Threatray 70 similar samples on MalwareBazaar
TLSH 5925CF98322472EECA67C031DAA98C64E721657A631F8603D02719DD9E0DF67EF144FB
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vps.helitactica.xyz
Sending IP: 203.159.80.22
From: office@kolsitegroups.com
Subject: 38241/02/017/21
Attachment: 382410201721.zip (contains "382410201721.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a process with a hidden window
Deleting a recently created file
Running batch commands
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
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
Sigma detected: Remcos
Sigma detected: Suspicious Svchost Process
Uses dynamic DNS services
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 354312 Sample: 382410201721.exe Startdate: 17/02/2021 Architecture: WINDOWS Score: 100 49 qweerreww.duckdns.org 2->49 51 fgtrert.duckdns.org 2->51 57 Found malware configuration 2->57 59 Malicious sample detected (through community Yara rule) 2->59 61 Detected Remcos RAT 2->61 63 6 other signatures 2->63 12 382410201721.exe 3 2->12         started        16 remcos.exe 2 2->16         started        18 remcos.exe 2 2->18         started        signatures3 process4 file5 47 C:\Users\user\...\382410201721.exe.log, ASCII 12->47 dropped 65 Contains functionality to steal Chrome passwords or cookies 12->65 67 Contains functionality to capture and log keystrokes 12->67 69 Contains functionality to inject code into remote processes 12->69 73 2 other signatures 12->73 20 382410201721.exe 4 5 12->20         started        71 Injects a PE file into a foreign processes 16->71 23 remcos.exe 16->23         started        25 remcos.exe 18->25         started        signatures6 process7 file8 43 C:\Users\user\AppData\Roaming\...\remcos.exe, PE32 20->43 dropped 45 C:\Users\user\...\remcos.exe:Zone.Identifier, ASCII 20->45 dropped 27 wscript.exe 1 20->27         started        process9 process10 29 cmd.exe 1 27->29         started        process11 31 remcos.exe 3 29->31         started        34 conhost.exe 29->34         started        signatures12 75 Multi AV Scanner detection for dropped file 31->75 77 Machine Learning detection for dropped file 31->77 79 Injects a PE file into a foreign processes 31->79 36 remcos.exe 31->36         started        39 remcos.exe 31->39         started        process13 dnsIp14 53 fgtrert.duckdns.org 213.142.154.45, 8494 IPR-INTERNATIONAL-LLCUS Turkey 36->53 55 qweerreww.duckdns.org 36->55 41 svchost.exe 36->41         started        process15
Threat name:
ByteCode-MSIL.Packed.Generic
Status:
Suspicious
First seen:
2021-02-17 16:19:07 UTC
AV detection:
13 of 26 (50.00%)
Threat level:
  1/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos persistence rat
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Remcos
Unpacked files
SH256 hash:
20c0f13ae385d72e95967e7136fc364dcf62f53b05576565ed6fd6f13c6e03aa
MD5 hash:
a0e48612317f305b6c78a3938797a257
SHA1 hash:
d62ce487e1bdef4dc90f90422feb8325892e6ff2
SH256 hash:
2ec41720b412f91f91daaefea38007449491b2c016238aa8f23b6866c89bc788
MD5 hash:
987ce346069cf47535e5ac57265c7228
SHA1 hash:
d0085325ed78fcac6d1f605753237abd1c40db22
SH256 hash:
e78c3472f16b0163d0ee36f4425816a700623257c07aa91985fcb5385444efc3
MD5 hash:
b84205a479f5c5c3c3af51c715080979
SHA1 hash:
21cbce2f298edca1c8b0538a8146ee398fbeaebf
Detections:
win_remcos_g0
SH256 hash:
941d7828d89da175afca52906a1e519707a09685f30332937917505fa8999f87
MD5 hash:
53ee3e51b223773a7db458eba4bd0528
SHA1 hash:
5ead7b026aa51ba272548be89118991378f54fb3
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:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants

File information


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

Malspam

RemcosRAT

Executable exe 941d7828d89da175afca52906a1e519707a09685f30332937917505fa8999f87

(this sample)

  
Delivery method
Distributed via e-mail attachment

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