MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382
SHA3-384 hash: 6d3fd0a98ea51a0652440241f5fa2b3a9c88258647b67b1582bb8cb4e286db05c51159c58bd06665a0819c5fc8ba4f4b
SHA1 hash: 2d8217b33639194edc86fc212cb5bf87f1552a42
MD5 hash: 833bc61d4955551fee83afc1fb812496
humanhash: venus-california-kilo-network
File name:833bc61d4955551fee83afc1fb812496
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:102'400 bytes
First seen:2022-07-22 03:10:45 UTC
Last seen:2022-07-22 11:08:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d3a62971944197f0701c7049a9c739d1 (60 x RemcosRAT)
ssdeep 3072:vhzYTGWVvJ8f2v1TbPzuMsIFSHNThy+JP/P6yrw:vhzOv2fM13jsIFSHNT7P/P6aw
TLSH T1D3A3E813FA4AD0B2E42591F546427F318EBCBC3236092173D39FCA819D79892D456EAF
TrID 33.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.6% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
14.0% (.SCR) Windows screen saver (13101/52/3)
11.2% (.EXE) Win64 Executable (generic) (10523/12/4)
7.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 989894b49c9494f0 (43 x RemcosRAT)
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
298
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
833bc61d4955551fee83afc1fb812496
Verdict:
Malicious activity
Analysis date:
2022-07-22 08:38:39 UTC
Tags:
rat remcos trojan
Link:
https://app.any.run/tasks/73fc9a66-9624-413b-8b39-a212f1827613

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/293282/
Detection(s):
Win.Malware.Azden-7587127-0
Create hunting rule

Win.Malware.Rescoms-6598304-0
Create hunting rule

Win.Malware.Zusy-6832224-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Setting a keyboard event handler
DNS request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/26981/overview
Behaviour
MalwareBazaar
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.
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e044c11c-57c0-44bc-8bce-73f7b84a231d
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1038971
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to capture and log keystrokes
Contains functionality to detect virtual machines (IN, VMware)
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 benign system names
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Uses dynamic DNS services
Uses ping.exe to check the status of other devices and networks
Uses ping.exe to sleep
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 671465 Sample: u75Gjw41le Startdate: 22/07/2022 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 7 other signatures 2->40 7 u75Gjw41le.exe 5 2->7         started        process3 file4 22 C:\Users\user\AppData\Roaming\...\svchost.exe, PE32 7->22 dropped 24 C:\Users\user\...\svchost.exe:Zone.Identifier, ASCII 7->24 dropped 42 Contains functionality to detect virtual machines (IN, VMware) 7->42 44 Contains functionality to steal Chrome passwords or cookies 7->44 46 Contains functionality to capture and log keystrokes 7->46 48 3 other signatures 7->48 11 cmd.exe 1 7->11         started        signatures5 process6 signatures7 50 Uses ping.exe to sleep 11->50 52 Uses ping.exe to check the status of other devices and networks 11->52 14 svchost.exe 1 3 11->14         started        18 PING.EXE 1 11->18         started        20 conhost.exe 11->20         started        process8 dnsIp9 26 windda.ddns.net 20.230.127.16, 2404 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 14->26 28 3.141.177.1, 10880, 49844 AMAZON-02US United States 14->28 32 2 other IPs or domains 14->32 54 Antivirus detection for dropped file 14->54 56 System process connects to network (likely due to code injection or exploit) 14->56 58 Tries to detect sandboxes and other dynamic analysis tools (window names) 14->58 60 2 other signatures 14->60 30 127.0.0.1 unknown unknown 18->30 signatures10
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382/
Threat name:
Win32.Backdoor.Rescoms
Create hunting rule
Status:
Malicious
First seen:
2022-07-22 03:11:06 UTC
File Type:
PE (Exe)
Extracted files:
2
AV detection:
25 of 26 (96.15%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=66otbgf7wcilnkvdsckd4jdrpdz2z734qikem7pqadgt6ebkeoba._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:president rat
Link:
https://tria.ge/reports/220722-dplhmscbd2/
Behaviour
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Deletes itself
Loads dropped DLL
Executes dropped EXE
Remcos
Malware Config
C2 Extraction:
widda1.ddns.net:2404
windda.ddns.net:2404
6.tcp.ngrok.io:10880
Unpacked files
SH256 hash:
f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382
MD5 hash:
833bc61d4955551fee83afc1fb812496
SHA1 hash:
2d8217b33639194edc86fc212cb5bf87f1552a42
Detections:
win_remcos_g0
Create hunting rule
win_remcos_auto
Create hunting rule
Link:
https://www.unpac.me/results/8c7e0039-df8a-4bf0-b1f5-83c7ec7f28c3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f79d3098bfb0/report/overview.html
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/f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382

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:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:malware_Remcos_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Remcos in memory
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_rat
Create hunting rule
Author:jeFF0Falltrades
Rule name:REMCOS_RAT_variants
Create hunting rule
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.

Web download

RemcosRAT

Executable exe f79d3098bfb090b6aaa390943e247178f3acff7c8214467df000cd3f102a2382

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/293282/
  
URLhaus
https://urlhaus.abuse.ch/url/2259963/

Comments


Avatar
zbet commented on 2022-07-22 03:10:52 UTC

url : hxxp://102.37.220.234/htdocs/EzArB.exe