MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4692d4716a224f54c928808d2d7ee7e9eaeb8531f1cd29b91886fa511a12f07a. 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: 4692d4716a224f54c928808d2d7ee7e9eaeb8531f1cd29b91886fa511a12f07a
SHA3-384 hash: 5c9296a26d26be670bfce7b06a571959896fc80afc90a3fae8aa6f0cd861b3fa77782a125f30d26895fb82ddabc8acd5
SHA1 hash: edd579f82bd634e2480f4478b520ec4d2d1ee6e2
MD5 hash: 4c17a5d2e9ef84a1b5023615ab26ae5c
humanhash: carpet-pluto-bluebird-quiet
File name:UAEOder082020_copy.scr
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:236'336 bytes
First seen:2020-08-05 06:55:42 UTC
Last seen:2020-08-05 08:00:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 3072:xfv5guvEar62+Nc2CIvdWzNo//WXrp13zl15twOuyEw8mcZWpnj/zrLag0:Vv5guvEar6v3Cro+bH3nKyEw8bWdux
Threatray 781 similar samples on MalwareBazaar
TLSH 0034B78C93460553E0182774C96EFF1403B129B9BA75EBF8FA94BB47EED07B61839019
Reporter abuse_ch
Tags:RemcosRAT scr


Avatar
abuse_ch
Malspam distributing RemcosRAT:

HELO: cloudhost-77552.us-midwest-1.nxcli.net
Sending IP: 209.126.25.80
From: prmtn@telusplanet.net
Subject: UAE 请报价
Attachment: UAEOder082020_copy.rar (contains "UAEOder082020_copy.scr")

RemcosRAT C2:
172.94.44.202:6606

Intelligence

File Origin
# of uploads :
2
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38997/
Detection(s):
SecuriteInfo.com.Trojan.Siggen8.46567.11819.13207.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Sending a custom TCP request
Sending a UDP request
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Setting a global event handler for the keyboard
Enabling autorun
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/410217
Signature
Allocates memory in foreign processes
Binary contains a suspicious time stamp
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
Creates an undocumented autostart registry key
Detected Remcos RAT
Drops PE files to the startup folder
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 257344 Sample: UAEOder082020_copy.scr Startdate: 05/08/2020 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Detected Remcos RAT 2->49 51 Yara detected Remcos RAT 2->51 53 2 other signatures 2->53 6 UAEOder082020_copy.exe 2 3 2->6         started        10 UAEOder082020_copy.exe 3 2->10         started        12 UAEOder082020_copy.exe 3 2->12         started        14 UAEOder082020_copy.exe 3 2->14         started        process3 file4 33 C:\Users\user\...\UAEOder082020_copy.exe, PE32 6->33 dropped 35 C:\...\UAEOder082020_copy.exe:Zone.Identifier, ASCII 6->35 dropped 55 Creates an undocumented autostart registry key 6->55 57 Drops PE files to the startup folder 6->57 59 Writes to foreign memory regions 6->59 16 AppLaunch.exe 6->16         started        19 AppLaunch.exe 2 3 6->19         started        61 Allocates memory in foreign processes 10->61 63 Injects a PE file into a foreign processes 10->63 23 AppLaunch.exe 10->23         started        25 AppLaunch.exe 10->25         started        27 AppLaunch.exe 12->27         started        29 AppLaunch.exe 14->29         started        signatures5 process6 dnsIp7 39 Contains functionality to steal Chrome passwords or cookies 16->39 41 Contains functionality to capture and log keystrokes 16->41 43 Contains functionality to inject code into remote processes 16->43 45 Contains functionality to steal Firefox passwords or cookies 16->45 37 172.94.44.202, 49743, 6606 AS40676US United States 19->37 31 C:\Users\user\AppData\Roaming\...\logs.dat, ASCII 19->31 dropped file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4692d4716a224f54c928808d2d7ee7e9eaeb8531f1cd29b91886fa511a12f07a/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 23:06:40 UTC
AV detection:
19 of 29 (65.52%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=i2jni4lkejhvjsjiqcgs27xh5hvoxbjr6hgstoiyq35fcgqs6b5a._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
0f307822855aabba644e0f79751eeb5f26e0575ae5ade7c6507c6d1ea7a64725
RemcosRAT
3b13ea61e91a0312f8c187096e435168cee2d2277c46373d01899497345bd0e9
RemcosRAT
667d35d2cff2979ca84df0afe1eca6c164e1d919b989e16b97166c7a30c77a87
RemcosRAT
6d6c5f16e0a786ca6fd218be24a98fe8ea46b6d73fa77a84e31b22717d81aad8
RemcosRAT
738ea925d9f26dc03c18efd41de5e310285a36eef0147e7767a25dcf3fb1b24d
RemcosRAT
93c327b46d6354a91a9b20311a2f1e1873e132765816ec26443eb1971ccd2946
RemcosRAT
af1cf572150e95fd75306a13eb3d2306e1e1fb4ef6c238f53f30f2525389e07b
RemcosRAT
b8a03fd14b3a3695af8b6c781eb946214a98986279678c6b2a477f22ba1ac3cf
RemcosRAT
c0a656a2f73c254ed2f1e73630083849890b7c1e36161e89fe29d2fd014f9fff
RemcosRAT
f9441d3651d67748ec1a2fd325ea1aa9d914208c7fae0853e5b769e52e66ccb8
RemcosRAT
+ 771 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
persistence rat family:remcos
Link:
https://tria.ge/reports/200805-zgff92v7cj/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Modifies WinLogon for persistence
Remcos
Malware Config
C2 Extraction:
172.94.44.202:6606
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/4692d4716a224f54c928808d2d7ee7e9eaeb8531f1cd29b91886fa511a12f07a

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 4bf61c5bf74d42fe00c49f31f2b94ef2b7c6316fe1890c391a8763ce522c75fb

RemcosRAT

Executable exe 4692d4716a224f54c928808d2d7ee7e9eaeb8531f1cd29b91886fa511a12f07a

(this sample)

  
Dropped by
MD5 64e456891de60154d05be65244c414b0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38997/
  
Dropped by
SHA256 4bf61c5bf74d42fe00c49f31f2b94ef2b7c6316fe1890c391a8763ce522c75fb

Comments