MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 804dcb4fefd588584f1e6dab425f4167aba62ca60e2d3989ff673c92a3ffb8b1. 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: 8

Intelligence 8 IOCs YARA 2 File information Comments

SHA256 hash:	804dcb4fefd588584f1e6dab425f4167aba62ca60e2d3989ff673c92a3ffb8b1
SHA3-384 hash:	9f49aa6cc7e6387e81f5388864bebb3e616c9cf567cfe470ae1e11512a780f05dd2eda4a1661b4692308d980959f659e
SHA1 hash:	4bc43119fba7af46e7d49389665044e67849e6ff
MD5 hash:	b4567e2dc53ee3721aec5cf7c67b9885
humanhash:	oklahoma-paris-berlin-india
File name:	Proof of Payment.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	439'808 bytes
First seen:	2020-08-06 06:42:30 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:M6mThM7jB+C9lnrXH/9yFoK7qn3tQhLRJa:MjcYC9lr31ym2q3tid
Threatray	789 similar samples on MalwareBazaar
TLSH	9E94BE0067C599C2C3294F7B4E55302056B1AD2E6E12EE976FC4328B497EBF90931ADF
Reporter	abuse_ch
Tags:	exe RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: [139.64.246.192]
Sending IP: 139.64.246.192
From: HBZ Bank Operations and Support Services <chris@powerengineering.co.za>
Subject: Proof of Payment
Attachment: Proof of Payment.7z (contains "Proof of Payment.exe")

RemcosRAT C2:
139.64.246.192:444

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/40175/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Creating a file in the %AppData% directory

Creating a file in the %temp% directory

Launching a process

Creating a process with a hidden window

Deleting a recently created file

Unauthorized injection to a recently created process

Creating a file

Connection attempt

Enabling autorun by creating a file

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/412302

Signature

BOT functionalities found, sample is likely a BOT

Contains functionality to capture and log keystrokes

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

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

Executable has a suspicious name (potential lure to open the executable)

Initial sample is a PE file and has a suspicious name

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)

Sigma detected: Remcos

Sigma detected: Scheduled temp file as task from temp location

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses schtasks.exe or at.exe to add and modify task schedules

Yara detected AntiVM_3

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/804dcb4fefd588584f1e6dab425f4167aba62ca60e2d3989ff673c92a3ffb8b1/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-06 06:44:15 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=qbg4wt7p2wefqty6nwvuex2bm6v2mlfgbywttcp7m46jfi77xcyq._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

51358357df23c81216cfed7bb144fcf65b611e622a661fa9fd5beaea4d749bb3

RemcosRAT

62115059096fc430f5e8b4cfe6884444fbb2b0733760a7f4a9856791f1151ba9

RemcosRAT

753883fa972dda966abb3adad3cfc94f0a82ca128d1908df58bac3ba93e60bd3

RemcosRAT

762d689595557fa3064907433659411b95132e554f7d17fcf62d1a77db51e3e5

RemcosRAT

81783c63ad44bdb77b3db79ec3cafb33222395e89d765c4ffbab36ea6b9c96eb

RemcosRAT

89313534a5c4579b6a00425281ef0473246cfb2340653bd3cf41b584bfa40578

RemcosRAT

9160a75fe7bd27c3cb8141039d4c7383162b199454dfa285dd7d11f9fcfe52b1

RemcosRAT

aad53b1b6e50e7ee426f0790b5497cb7d63704a6775248f258db1263762761bb

RemcosRAT

c851749fd6c9fa19293d8ee2c5b45b3dc8561115ddfe7166fbaefcb9b353b7c4

RemcosRAT

+ 779 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

rat family:remcos

Link:

https://tria.ge/reports/200806-le19t2ndsx/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetThreadContext

Remcos

Malware Config

C2 Extraction:

139.64.246.192:444

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/804dcb4fefd588584f1e6dab425f4167aba62ca60e2d3989ff673c92a3ffb8b1

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:	Remcos Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Remcos in memory

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