MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f. 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: 8


Intelligence 8 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f
SHA3-384 hash: f684091c2c6045bc1bbe74499d6a7e8d18141e1770c28ad3b361e6423564afa05206b13de748234b15ff5bdbe5ff12aa
SHA1 hash: 61a0770a21b3755e4dc62505744cb8e9fb3cd221
MD5 hash: 368d17947334bf579e64bc6305db9ca6
humanhash: london-alpha-arizona-charlie
File name:PRE ALERT NOTICE.zip
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:527'819 bytes
First seen:2023-02-10 08:38:14 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:qtNIDlw/5u22+S8FBR8NAJUbjjb31AGAtrM1n:QIDiBuN+SeRiA+bj331v1n
TLSH T1A0B4237F383301D69BE7B36B4B6A00290538DC99F065E10E7988263AE02757475DEDEB
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:RemcosRAT zip


Avatar
cocaman
Malicious email (T1566.001)
From: "ikb_sales02@Isewanthai.co.th<ikb_sales02@Isewanthai.co.th>" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [45.137.22.74]) "
Date: "10 Feb 2023 00:37:46 +0100"
Subject: "REVISED DRAFT EXPORT ENTRY // RE: CI,PLRe: Booking SITGLCNG336203 // RE: Booking New shipment ETD : 17/2/23 1*20GP"
Attachment: "PRE ALERT NOTICE.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
101
Origin country :
n/a
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:PRE ALERT NOTICE.exe
File size:542'528 bytes
SHA256 hash: 8453736e80df77744f2e82871bbfd9dcc62f166f5ed37e3f9e1e01a98bcef6e4
MD5 hash: e5f9fff610aaa0d3467e47a12dac32db
MIME type:application/x-dosexec
Signature RemcosRAT
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs3202.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Trojan.Garf.Gen.6.11528.17279.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63e602a7459bcf4604005f07/reports/5bea91fa-22e4-4895-84fb-18fd8d0c79d5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-02-09 23:08:17 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uqvsyjqp7li532skccjrh7s7sv7lrcwdwyy6x22pf6ebfo6l2b7q._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat
Link:
https://tria.ge/reports/230210-ktwmqsed45/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Executes dropped EXE
Loads dropped DLL
Remcos
Malware Config
C2 Extraction:
45.87.61.104:3033
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/a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f

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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Rule name:win_remcos_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.

File information

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

Malspam

RemcosRAT

zip a42b2c260ffad1ddea4a109313fe5f957eb88ac3b631ebeb4f2f8812bbcbd07f

(this sample)

RemcosRAT

Executable exe 8453736e80df77744f2e82871bbfd9dcc62f166f5ed37e3f9e1e01a98bcef6e4

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 8453736e80df77744f2e82871bbfd9dcc62f166f5ed37e3f9e1e01a98bcef6e4
  
Dropping
RemcosRAT

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