MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4a3167ca8c35a365a3f308cebf6169b1f771eb5094a77de23e6b0799794f135. 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: 7


Intelligence 7 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4a3167ca8c35a365a3f308cebf6169b1f771eb5094a77de23e6b0799794f135
SHA3-384 hash: 17e892f63381780870c40467fd454f2b22dc13e79f244e36141bd667459f7a7dab6d73a7d95bd40fb2c9b62ad6c46c8b
SHA1 hash: d5302c83590a85c7c4df36e82f1f039596108233
MD5 hash: 99d61423ddad6c2eb67a0e52a4c75744
humanhash: jig-floor-cold-snake
File name:PO# 4524229716 Holy Caruschka Zavala Figueroa ,pdf.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:829'952 bytes
First seen:2020-06-26 15:41:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 40976bd0dfb9d8835690180f02eb563a (3 x RemcosRAT, 2 x FormBook, 1 x NetWire)
ssdeep 12288:PHDP+feVTP9D8jFUnohgvBsMWwo1fkR3CcYs6z7x1J11Mwb:vLVR9gjF8ohgvBfo9kchz1x
Threatray 981 similar samples on MalwareBazaar
TLSH 6F058E62F2915A3BD0321B7C8D1B53985926FD112D2C9D866FF89F4C5F3A3817C292A3
Reporter abuse_ch
Tags:BGR exe geo RAT RemcosRAT


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: host.eclicsys.org
Sending IP: 45.79.145.22
From: Holy Caruschka Zavala Figueroa <Holy.Zavala@univarsolutions.com>
Subject: Re: PO# 4524229716
Attachment: PO 4524229716 Holy Caruschka Zavala Figueroa ,pdf.iso (contains "PO# 4524229716 Holy Caruschka Zavala Figueroa ,pdf.exe")

RemcosRAT C2:
nagod.ddns.net

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/14969/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

SecuriteInfo.com.AI.Packer.7BA51BF319.27257.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a file
Launching the default Windows debugger (dwwin.exe)
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4a3167ca8c35a365a3f308cebf6169b1f771eb5094a77de23e6b0799794f135/
Threat name:
Win32.Trojan.Delf
Create hunting rule
Status:
Malicious
First seen:
2020-06-26 15:43:05 UTC
AV detection:
25 of 31 (80.65%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=usrrm7fiynndmwr7gcgox5qwtmpxohvvbffhpxrd42yhtf4u6e2q._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
28e5fa8a71a61c9a963340efa4179b8e1e966eca430c77f86c5795a28b66162a
RemcosRAT
2f07a5d8c1e6ac465e5d306b0fb8335aa41f3204b9bf9793337a849a93921a9a
RemcosRAT
3bdfaf82d5d56f2546be44b3355f8d72cc0508984586e0fba3d704a5adabf7d1
RemcosRAT
417022af236bc97978cd14c5ffb8e5ced3392987a8b73ae3a5f1906367419abd
RemcosRAT
5623d23f830311afc91586eeae9824ede5dd4233d9b45a45a6bea4110514db48
RemcosRAT
56a2574ca6e3e3036a5bdcc9f17deade4bff0920373a8d9944fc9e297b970650
RemcosRAT
64ba0f4265f9ed3f3f9315ee0256b360827074d5f898a7eb07ed98dd5f7fec7e
RemcosRAT
a9b90669d9cd5ec23e141533e94adc37e8f27eeb683aa59c5cac7f17bf9ac827
RemcosRAT
c59842c19c1b3f0171b40eebfb3e98ddccc4237edcaaa62990a0881ee1f6f798
RemcosRAT
da7ce8060ef04b847aeb11d727b9d8fad9526dc3314adce4ffa5e0b597ac5547
RemcosRAT
+ 971 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos persistence
Link:
https://tria.ge/reports/200626-3pe7v6sbgs/
Behaviour
Suspicious use of WriteProcessMemory
Modifies registry key
Adds Run entry to start application
Legitimate hosting services abused for malware hosting/C2
Executes dropped EXE
Remcos
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
Create hunting rule
Author:abuse.ch
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

iso 889052d8a645776eb87cc8f4544965174654aa46f4d39562aab7b825baf64a50

RemcosRAT

Executable exe a4a3167ca8c35a365a3f308cebf6169b1f771eb5094a77de23e6b0799794f135

(this sample)

  
Dropped by
MD5 8dda20182f2bea84f114dfcd13bfafc8
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/14969/
  
Dropped by
SHA256 889052d8a645776eb87cc8f4544965174654aa46f4d39562aab7b825baf64a50

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