MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd. 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: 12


Intelligence 12 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd
SHA3-384 hash: 0ca26d2db5357ef06de3cb2bff4a61ea6d0dc0d9d139e8e9bfc1eda81d9103e939dd05fc9d5d31d8b6dad47fcf5b7db2
SHA1 hash: ee07dfda2c004d798e724f65b7e775c76078deb0
MD5 hash: f0bb3fd79002b8dd5f40ef9aacf38cd5
humanhash: lamp-south-music-fillet
File name:CONFIRM BANK DETAILS_pdf__________________________.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:982'528 bytes
First seen:2021-08-23 13:20:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:/TJafQ0y+yjVNSBI85mp1hMVTzuXxfDOj6:rz0y+yB0BzohkzuBF
TLSH T1E32512453345FA8FD92E8D7999452C14E7F1E87A231BCB16ACC325E94E8F3858B012B7
Reporter GovCERT_CH
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
133
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CONFIRM BANK DETAILS_pdf__________________________.exe
Verdict:
Malicious activity
Analysis date:
2021-08-23 13:23:40 UTC
Tags:
rat remcos keylogger
Link:
https://app.any.run/tasks/935476eb-6e85-4b21-ab55-8bac34cb7f5a

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/181502/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.17848.13416.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Setting a keyboard event handler
Connection attempt to an infection source
Creating a file in the %AppData% subdirectories
Query of malicious DNS domain
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/bd7c15e5-5e25-49e1-897b-0d13cbb860c6
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/837552
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Sigma detected: Suspicious Double Extension
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-23 13:21:06 UTC
AV detection:
15 of 40 (37.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ib555oldcixhlee7jfqwhpxh2jqmr3bsdstfsazfzylif4cxihoq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:good rat
Link:
https://tria.ge/reports/210823-8t4h8fr3hx/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Remcos
Malware Config
C2 Extraction:
trucker5.ddns.net:3341
Unpacked files
SH256 hash:
8cbfe8b86da7f339298648ec7589d6538567549060baf461c69a0f67d6b5a6d2
MD5 hash:
670ef79ff4a681241df872e123482d21
SHA1 hash:
ed182b75563e4d2247c5112cddce87705d8925ad
Link:
https://www.unpac.me/results/4542723b-9cf5-487f-9049-7ba83f7b92d1/
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/4542723b-9cf5-487f-9049-7ba83f7b92d1/
SH256 hash:
d0d7a23808c5b1e2d6ce8055dee6dcff4f8ea698c2364812679e0302413a300d
MD5 hash:
9ff7467e9a1ec84d751c7d09e58fe9f1
SHA1 hash:
4a0d3d121f261e91430892962b6aa7c0d70dd088
Detections:
win_remcos_g0
Create hunting rule
Link:
https://www.unpac.me/results/4542723b-9cf5-487f-9049-7ba83f7b92d1/
Parent samples :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 hash:
407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd
MD5 hash:
f0bb3fd79002b8dd5f40ef9aacf38cd5
SHA1 hash:
ee07dfda2c004d798e724f65b7e775c76078deb0
Link:
https://www.unpac.me/results/4542723b-9cf5-487f-9049-7ba83f7b92d1/
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/407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

RemcosRAT

Executable exe 407bdeb963122e75909f496163bee7d260c8ec321ca6590325ce1682f05741dd

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/181502/

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