MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198. 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: 10


Intelligence 10 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198
SHA3-384 hash: 78ddf755fdb9b65d7c6c60853bb1e82b71d39c5a0a25585e19bd389d416b2bcd244e02b456c5ae84c170cac4d44de819
SHA1 hash: e5a934dea63316685e77a7b1773807ee8e83584c
MD5 hash: 3bbe3235da11c57820aade4c7bbb3184
humanhash: skylark-connecticut-romeo-social
File name:PO FH8765446878-15-10-2020,pdf,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:900'608 bytes
First seen:2020-10-16 17:46:57 UTC
Last seen:2020-10-16 19:22:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'238 x SnakeKeylogger)
ssdeep 24576:roFt5cHpixeV23UP+DLu9TKJ0E6cpTGZ:rHHpiYV23UPESSh6a
TLSH DF15199C765072DEC86BC972DA685C74EB607C7A431BC20790533AADAA3D997CF101F2
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/72225/
Detection(s):
SecuriteInfo.com.ArtemisTrojan.9643.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a process with a hidden window
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/494057
Signature
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
Detected Remcos RAT
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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
Sigma detected: Remcos
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 AntiVM_3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-10-16 15:25:25 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qv5nbp4ud3sdjwlgsjdxx3awy4sxdtrgmci3us6mnfjpicnp6gma._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos
Link:
https://tria.ge/reports/201016-3hga2avdcn/
Behaviour
Creates scheduled task(s)
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
incidencias6645.ddns.net:8638
Unpacked files
SH256 hash:
857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198
MD5 hash:
3bbe3235da11c57820aade4c7bbb3184
SHA1 hash:
e5a934dea63316685e77a7b1773807ee8e83584c
Link:
https://www.unpac.me/results/26124fba-104f-4814-b210-1b845340920a/
SH256 hash:
82f8bd44e89d4a7bce66244db910416be74b6de4adaeaf9601e5e3be996acb5f
MD5 hash:
31673fcc744bcbd12e2fc7afd15a61bf
SHA1 hash:
5eaf54a16ffb03b1df564e1bf9a1516da1a781f0
Link:
https://www.unpac.me/results/26124fba-104f-4814-b210-1b845340920a/
SH256 hash:
f3d0527738dc71fa225aba647b281ef23a1b998309d97def975f47d6d1756954
MD5 hash:
255e46c2777f28a33853de4800c19b06
SHA1 hash:
9d748ed7e584dda447da748add86c476154cabbe
Link:
https://www.unpac.me/results/26124fba-104f-4814-b210-1b845340920a/
SH256 hash:
bcae4c5ca1ad436f05f6d52fbd3ffb22aeea32492b4dd378bd715869d81622fa
MD5 hash:
c81a2fbd4541f3ede628bcffa0c0d379
SHA1 hash:
ccbe2d29399246fea9c29cd62efda8277749fe58
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/26124fba-104f-4814-b210-1b845340920a/
Parent samples :
d18e31c42d64a21777bb04a3b0015d415050a6303ae3d864f129ecb50f0f87bb
736bd7b09aa1e987edac64868cc8e5db0d86e709652e0588e2023d052f3def8f
857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198
0f0f600613b5b1d1e9d80c6229d2ec639d4477d107fa080a5f58d3f61997bceb
18beca395ea8cfba85e8fb26a3adc366bf7c047088c2fe16b4ed587cecd6e57f
7a6f6659840dc30d797d816e1b2bbeb847c36c2e330fe45369b9037a113e8bc6
a0e87c60c05c9b9a184ad81e279fabb2e997ab1d79cba0248548d846ecab8510
94f225b0d4018228ee1c69317cd8f369f3c343378145e41cdf939d4dd30b988d
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/26124fba-104f-4814-b210-1b845340920a/
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/857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198

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
Create hunting rule
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Create hunting rule
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

RemcosRAT

Executable exe 857ad0bf941ee434d96692477bec16c72571ce266091ba4bcc6952f409aff198

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/72225/

Comments