MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d
SHA3-384 hash: cfb6a790f738b2ef810e663414ec2a13e9f38d70b933fa5e100489b58e076b262c8d7ed23b2b41cd2201347826f57dc1
SHA1 hash: 8b4e9c604c5597c660133da71e23cc1cd81bbe44
MD5 hash: 6c4bb3b95606b439e5e2fb3414c63b70
humanhash: winter-berlin-five-chicken
File name:scanned order 1.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:675'840 bytes
First seen:2020-08-11 11:48:57 UTC
Last seen:2020-08-11 13:19:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash df85ac537d57e3a7e2b1ddaa5fca9ad3 (3 x AgentTesla, 2 x Formbook, 2 x HawkEye)
ssdeep 12288:bV5mZ52HqKRoIYXSi8yrxEMPqdee+OLg8QeUhAgYD:B8ZqbfksrD6h6
Threatray 1'206 similar samples on MalwareBazaar
TLSH DCE49E6EE1D048B7C11326795D6B5B3867277E201B74244A2AE57DCC5B372C33C2B98B
Reporter abuse_ch
Tags:RAT RemcosRAT scr


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: vepo.donoralpha.com
Sending IP: 111.118.214.86
From: sales <sales@rhmsafety.com>
Subject: RFQ 20202792 RHM Safety Co
Attachment: scanned order 1.cab (contains "scanned order 1.scr")

Intelligence

File Origin
# of uploads :
2
# of downloads :
80
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/43312/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Connection attempt
Sending a UDP request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Setting a global event handler for the keyboard
Unauthorized injection to a system process
Enabling autorun by creating a file
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/418667
Signature
Allocates memory in foreign processes
Contains functionality to capture and log keystrokes
Contains functionality to detect sleep reduction / modifications
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Creates files in alternative data streams (ADS)
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Drops VBS files to the startup folder
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Queues an APC in another process (thread injection)
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Keylogger Generic
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 261653 Sample: scanned order 1.scr Startdate: 11/08/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->40 42 Detected unpacking (changes PE section rights) 2->42 44 14 other signatures 2->44 8 scanned order 1.exe 2->8         started        11 wscript.exe 1 2->11         started        process3 signatures4 48 Writes to foreign memory regions 8->48 50 Allocates memory in foreign processes 8->50 52 Queues an APC in another process (thread injection) 8->52 13 notepad.exe 5 8->13         started        17 wimdows.exe 11->17         started        process5 file6 30 C:\Users\user\AppData\Roaming\...\wimdows.exe, PE32 13->30 dropped 32 C:\Users\user\...\wimdows.exe:Zone.Identifier, ASCII 13->32 dropped 34 C:\Users\user\AppData\Roaming\...\wimdows.vbs, ASCII 13->34 dropped 54 Creates files in alternative data streams (ADS) 13->54 56 Drops VBS files to the startup folder 13->56 19 wimdows.exe 13->19         started        58 Maps a DLL or memory area into another process 17->58 22 wimdows.exe 17->22         started        signatures7 process8 signatures9 46 Maps a DLL or memory area into another process 19->46 24 wimdows.exe 2 3 19->24         started        process10 dnsIp11 36 172.111.200.225, 8069 M247GB United States 24->36 28 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 24->28 dropped file12
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2020-08-11 11:50:11 UTC
AV detection:
21 of 48 (43.75%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=oohksjoz6jw4apay57kb3zpdcaufunxo6akh453hujo46p5rwjgq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
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c0a656a2f73c254ed2f1e73630083849890b7c1e36161e89fe29d2fd014f9fff
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eee72be9b19c5e0fa5fd1b5404798a7ccd5b73830249562f9465583004980a18
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f9441d3651d67748ec1a2fd325ea1aa9d914208c7fae0853e5b769e52e66ccb8
RemcosRAT
+ 1'196 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
rat family:remcos
Link:
https://tria.ge/reports/200811-2gr2zva2ms/
Behaviour
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
172.111.200.225:8069
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/738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d

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

rar 5ba45d8c9d5c2a00b6947a7ff864da585a24ac14424d8a05ede8e64683184183

RemcosRAT

Executable exe 738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d

(this sample)

  
Dropped by
MD5 1bd74fa19c87febe98087f47198561b2
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5ba45d8c9d5c2a00b6947a7ff864da585a24ac14424d8a05ede8e64683184183
Cape
Cape
https://www.capesandbox.com/analysis/43312/

Comments