MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 388049273cb20d101193c3f9655123e42ba9a58593f2e1bf8818aacf6b689b22. 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 1 YARA 7 File information Comments

SHA256 hash: 388049273cb20d101193c3f9655123e42ba9a58593f2e1bf8818aacf6b689b22
SHA3-384 hash: 060cc2f60a8d8c534c66b5067b2821ce7f832ade4e3cc71623beb4d910e215227331e9a958891aa6ff12843561f48fd9
SHA1 hash: 82792d1c313286d06dd71c654403f1171f4e6e71
MD5 hash: dcc2a339d362079f47910060f4744be2
humanhash: finch-football-nitrogen-freddie
File name:Document.exe
Download: download sample
Signature RemcosRAT
File size:1'073'664 bytes
First seen:2021-07-28 15:10:29 UTC
Last seen:2021-07-29 05:05:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 04e2fca09a354b909f05dafce23756a7 (2 x RemcosRAT, 1 x AveMariaRAT)
ssdeep 12288:Emt6Xn/fYF7E9rTdcDNVn14ZNBehaSXYG0aAJ92PHiLeN0aSy3V6+1G6q:xt0XnVcDNcm7JBa2HKaLFt
Threatray 6 similar samples on MalwareBazaar
TLSH T162359E63B2A35437CC27243C5C2B87A4AD1DFB902F14E4D62BF51DE8AF35693B82514A
dhash icon 89acae83529aaa82 (3 x RemcosRAT, 1 x AveMariaRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
217.138.204.41:2404

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
217.138.204.41:2404 https://threatfox.abuse.ch/ioc/163388/

Intelligence


File Origin
# of uploads :
3
# of downloads :
137
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Document.exe
Verdict:
Malicious activity
Analysis date:
2021-07-28 15:16:19 UTC
Tags:
installer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
UNKNOWN
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:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
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 register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Writes to foreign memory regions
Yara detected Remcos RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 455566 Sample: Document.exe Startdate: 28/07/2021 Architecture: WINDOWS Score: 100 41 Multi AV Scanner detection for domain / URL 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 5 other signatures 2->47 6 Document.exe 1 19 2->6         started        11 Obmnoib.exe 13 2->11         started        13 Obmnoib.exe 13 2->13         started        process3 dnsIp4 25 cdn.discordapp.com 162.159.133.233, 443, 49750, 49752 CLOUDFLARENETUS United States 6->25 23 C:\Users\Public\Libraries\...\Obmnoib.exe, PE32 6->23 dropped 49 Writes to foreign memory regions 6->49 51 Allocates memory in foreign processes 6->51 53 Creates a thread in another existing process (thread injection) 6->53 15 dialer.exe 2 3 6->15         started        55 Injects a PE file into a foreign processes 11->55 19 DpiScaling.exe 11->19         started        27 162.159.135.233, 443, 49771 CLOUDFLARENETUS United States 13->27 21 secinit.exe 13->21         started        file5 signatures6 process7 dnsIp8 29 rem1.camdvr.org 217.138.204.41, 2404, 49757 M247GB United Kingdom 15->29 31 Contains functionalty to change the wallpaper 15->31 33 Contains functionality to steal Chrome passwords or cookies 15->33 35 Contains functionality to capture and log keystrokes 15->35 39 2 other signatures 15->39 37 Contains functionality to steal Firefox passwords or cookies 19->37 signatures9
Gathering data
Threat name:
Win32.Trojan.Woreflint
Status:
Malicious
First seen:
2021-07-28 15:11:04 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost persistence rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Program crash
Adds Run key to start application
Blocklisted process makes network request
Remcos
Malware Config
C2 Extraction:
rem1.camdvr.org:2404
rem16.hopto.org:2404
rem1666.hopto.org:2404
rem16.camdvr.org:2404
remmusic.freeddns.org:2404
sunwap1.ddns.net:2404
rem166.hopto.org:2404
Unpacked files
SH256 hash:
d174ea83359cec0b0a35da88fa2a1791a1308e35a5e36e83f51a2723e48582a6
MD5 hash:
5c63077607b089e7045eb5e93d8324d9
SHA1 hash:
9ca12c4d6e4a97269d26fe6755aae441276bff42
SH256 hash:
388049273cb20d101193c3f9655123e42ba9a58593f2e1bf8818aacf6b689b22
MD5 hash:
dcc2a339d362079f47910060f4744be2
SHA1 hash:
82792d1c313286d06dd71c654403f1171f4e6e71
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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
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:Detects win.remcos.

File information


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

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