MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8a4462c6b8f5d8728d5374adc98def5a5c38dd97d70a1c3859c876bfbe3fbd0. 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: 11


Intelligence 11 IOCs YARA 9 File information Comments

SHA256 hash: c8a4462c6b8f5d8728d5374adc98def5a5c38dd97d70a1c3859c876bfbe3fbd0
SHA3-384 hash: 8dd3fc726f79b959705406bea9b301fa5579419866da528b2536a660ab5ce9bdf94ebb62069c27cb31ddb04c468f0e62
SHA1 hash: 52f930dcce70cd3c6c4fcab5b9089d892fb20239
MD5 hash: a7983d32e7bd7228197e6dcf1c71ed66
humanhash: east-violet-high-single
File name:a7983d32e7bd7228197e6dcf1c71ed66
Download: download sample
Signature RemcosRAT
File size:920'782 bytes
First seen:2021-06-24 00:46:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf1390e9ce472c7270447fc5c61a0c1 (863 x DCRat, 118 x NanoCore, 94 x njrat)
ssdeep 12288:PQnk3GDYKGcblqQJ8IKwzef8FjdzVhf2QQAF1i5DADtCjz6ge69TEfWnrtWk+r:BAOcZpJ7Kwt1dbsCpt4myJrmr
Threatray 1'941 similar samples on MalwareBazaar
TLSH 12151202B6C188B2D57329310A396701AD7DBD600F25DA6EF3E41C6DDF729806636FA3
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
131
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a7983d32e7bd7228197e6dcf1c71ed66
Verdict:
Malicious activity
Analysis date:
2021-06-24 00:48:42 UTC
Tags:
rat remcos keylogger

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
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
Detected Remcos RAT
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Process Start Without DLL
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected AntiVM autoit script
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 439410 Sample: W3lunvI4cA Startdate: 24/06/2021 Architecture: WINDOWS Score: 100 26 shahzad73.ddns.net 2->26 28 shahzad73.casacam.net 2->28 34 Multi AV Scanner detection for domain / URL 2->34 36 Found malware configuration 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 7 other signatures 2->40 8 W3lunvI4cA.exe 24 2->8         started        12 eopllrk.pif 2->12         started        signatures3 process4 file5 22 C:\33333365\eopllrk.pif, PE32 8->22 dropped 52 Drops PE files with a suspicious file extension 8->52 14 eopllrk.pif 1 3 8->14         started        signatures6 process7 file8 24 C:\Users\user\AppData\Local\...\RegSvcs.exe, PE32 14->24 dropped 54 Multi AV Scanner detection for dropped file 14->54 56 Writes to foreign memory regions 14->56 58 Allocates memory in foreign processes 14->58 60 Injects a PE file into a foreign processes 14->60 18 RegSvcs.exe 2 3 14->18         started        signatures9 process10 dnsIp11 30 shahzad73.casacam.net 185.19.85.139, 2404, 49725, 49726 DATAWIRE-ASCH Switzerland 18->30 32 shahzad73.ddns.net 18->32 42 Contains functionality to steal Chrome passwords or cookies 18->42 44 Contains functionality to capture and log keystrokes 18->44 46 Contains functionality to inject code into remote processes 18->46 48 Contains functionality to steal Firefox passwords or cookies 18->48 signatures12 50 Uses dynamic DNS services 30->50
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2021-06-23 12:50:38 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:nanocore family:remcos botnet:june-bless keylogger persistence rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
NanoCore
Remcos
Malware Config
C2 Extraction:
shahzad73.casacam.net:2404
shahzad73.ddns.net:2404
Unpacked files
SH256 hash:
c95a1dcb6e22fb247d85f46b0ec9acb24d6e81b43d3814a2261795c4767d1836
MD5 hash:
a4d02efb00ccafec5040d23a69537c9e
SHA1 hash:
b6770ef0229becbe725c678a9b002bb5014c224e
Detections:
win_remcos_g0 win_remcos_auto
SH256 hash:
09b29aef4d8c5540fae08dfd65054e2ccc833470fc34e90caff4338fde4b43ae
MD5 hash:
eff112a0dae23be9faf2808bf093c5a3
SHA1 hash:
52a3aa096b03cacc5fc60396c1000c9417bbd177
SH256 hash:
c8a4462c6b8f5d8728d5374adc98def5a5c38dd97d70a1c3859c876bfbe3fbd0
MD5 hash:
a7983d32e7bd7228197e6dcf1c71ed66
SHA1 hash:
52f930dcce70cd3c6c4fcab5b9089d892fb20239
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
Author:abuse.ch
Rule name:Chrome_stealer_bin_mem
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:Keylog_bin_mem
Author:James_inthe_box
Description:Contains Keylog
Rule name:Parallax
Author:@bartblaze
Description:Identifies Parallax RAT.
Rule name:Remcos
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:remcos_rat
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Rule name:win_remcos_auto
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.

Web download

RemcosRAT

Executable exe c8a4462c6b8f5d8728d5374adc98def5a5c38dd97d70a1c3859c876bfbe3fbd0

(this sample)

  
Delivery method
Distributed via web download

Comments