MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d
SHA3-384 hash: 97d4467e709f6c3717b3adc8b40c4c80b4934884916c4aa77e2e661a4c34e0fdc45c7aff4f9bfd1fbf01c7dc2dc48948
SHA1 hash: fea4e390ed200855cbcd7196a7d6b2b647a21102
MD5 hash: 9ac22682b4c95a59b075eef78c576260
humanhash: tango-ohio-juliet-speaker
File name:9ac22682b4c95a59b075eef78c576260
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'608 bytes
First seen:2021-09-02 14:16:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'452 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 48:6t8ZNeO1ONPo8Jm6lRCQ0o7jhIBpZsjyiv2osgTKePln6EOulZjtGWuqXSfbNtm:tAvmybN79y+jn3TKeNn6KVGBzNt
Threatray 1 similar samples on MalwareBazaar
TLSH T16E91941267D841ABE0B707B068F397612BB5FA328967479E74C4032AAD627508D63BB1
Reporter zbetcheckin
Tags:32 exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9ac22682b4c95a59b075eef78c576260
Verdict:
Suspicious activity
Analysis date:
2021-09-02 15:58:06 UTC
Tags:
opendir loader rat remcos
Link:
https://app.any.run/tasks/1008654e-9a51-4bf8-93e0-5eebd9243cfb

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/184816/
Detection(s):
SecuriteInfo.com.Suspicious.Win32.Save.a.27856.23429.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Deleting a recently created file
Connection attempt
Sending a custom TCP request
Downloading the file
Connection attempt to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/68b31ec0-defc-423c-b25b-bd80f8d25cec
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844091
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Delayed program exit found
Detected Remcos RAT
Detected unpacking (changes PE section rights)
Found malware configuration
Injects a PE file into a foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Powershell drops PE file
Sigma detected: Powershell download and execute file
Sigma detected: PowerShell DownloadFile
Sigma detected: Suspicious Script Execution From Temp Folder
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to download and execute files (via powershell)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 476522 Sample: gdRubtjXcj Startdate: 02/09/2021 Architecture: WINDOWS Score: 100 51 Multi AV Scanner detection for domain / URL 2->51 53 Found malware configuration 2->53 55 Malicious sample detected (through community Yara rule) 2->55 57 13 other signatures 2->57 10 gdRubtjXcj.exe 2 2->10         started        process3 file4 45 C:\Users\user\AppData\...\gdRubtjXcj.exe.log, ASCII 10->45 dropped 13 cmd.exe 1 10->13         started        process5 dnsIp6 47 198.23.251.109, 49717, 80 AS-COLOCROSSINGUS United States 13->47 69 Suspicious powershell command line found 13->69 71 Tries to download and execute files (via powershell) 13->71 17 powershell.exe 13 13->17         started        19 powershell.exe 14 17 13->19         started        23 conhost.exe 13->23         started        signatures7 process8 file9 25 vbc.exe 6 17->25         started        37 C:\Users\user\AppData\Local\Temp\vbc.exe, PE32 19->37 dropped 59 Powershell drops PE file 19->59 signatures10 process11 file12 39 C:\Users\user\AppData\...\FrydnNPJDpA.exe, PE32 25->39 dropped 41 C:\Users\user\AppData\Local\...\tmpED4D.tmp, XML 25->41 dropped 43 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 25->43 dropped 61 Multi AV Scanner detection for dropped file 25->61 63 Detected unpacking (changes PE section rights) 25->63 65 Machine Learning detection for dropped file 25->65 67 3 other signatures 25->67 29 vbc.exe 2 25->29         started        33 schtasks.exe 1 25->33         started        signatures13 process14 dnsIp15 49 45.137.22.77, 49720, 5888 ROOTLAYERNETNL Netherlands 29->49 73 Contains functionality to steal Chrome passwords or cookies 29->73 75 Contains functionality to inject code into remote processes 29->75 77 Contains functionality to steal Firefox passwords or cookies 29->77 79 Delayed program exit found 29->79 35 conhost.exe 33->35         started        signatures16 process17
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d/
Threat name:
ByteCode-MSIL.Trojan.Nitol
Create hunting rule
Status:
Malicious
First seen:
2021-09-02 14:17:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvreftuyovac7srw63mdcbzemk6ppmeznqvjruciivkfssc23yoq._file
Verdict:
unknown
Similar samples:
9e81297c900c7ea07b188d31e34317fcd8431271e49f17660a11130b60cbd079
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost rat suricata
Link:
https://tria.ge/reports/210902-rlrr5sdccq/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
Executes dropped EXE
Remcos
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
Malware Config
C2 Extraction:
45.137.22.77:5888
Dropper Extraction:
http://198.23.251.109/kswb/vbc.exe
Unpacked files
SH256 hash:
b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d
MD5 hash:
9ac22682b4c95a59b075eef78c576260
SHA1 hash:
fea4e390ed200855cbcd7196a7d6b2b647a21102
Link:
https://www.unpac.me/results/d220d67b-7dab-49c8-a143-410251b880d8/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b56242ce9875/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/b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

RemcosRAT

Executable exe b56242ce9875402fca36f6d831072462bcf7b0996c2a98d048455459485ade1d

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1586163/
Cape
Cape
https://www.capesandbox.com/analysis/184816/

Comments


Avatar
zbet commented on 2021-09-02 14:16:35 UTC

url : hxxp://198.23.251.109/windows/kswb.exe