MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8de7c07a62506baf48b1b5c799d33341a68117b34f3e5ee31a0ff23e87313f9. 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 YARA 2 File information Comments

SHA256 hash:	b8de7c07a62506baf48b1b5c799d33341a68117b34f3e5ee31a0ff23e87313f9
SHA3-384 hash:	450badd9e3756565b041ccf13c72c5a7a3e908787089d7b613852a57c517776ae2c074ff8e71cad50838611623c0bfd9
SHA1 hash:	1f3debec8f6fd30f981f209fbe5ea606c564051d
MD5 hash:	0013b0f6f384ea57045594fc2aa25e03
humanhash:	carpet-tennessee-steak-eighteen
File name:	Request for quotation and No_863972 order,pdf.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	619'008 bytes
First seen:	2020-08-31 11:00:07 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:ZePFDKZG5zceIlz1QCTyd1mS3V2hBbX/BadpJtg:MKZomcdUSohBbvBa7Jtg
Threatray	1'081 similar samples on MalwareBazaar
TLSH	DED49E59530D6B2FCC2876B92460C0BC91F2AE50EA34F5C8EDCB3CA735F625DA759182
Reporter	abuse_ch
Tags:	exe RAT RemcosRAT

abuse_ch

Malspam distributing RemcosRAT:

HELO: s1.servidorlatinoamerica.com
Sending IP: 209.236.113.134
From: Ramadhan Saifullah<marketing@leekeegroup.com>
Subject: URGENT PURCHASE ORDER FOR THAILAND MARKET
Attachment: Request for quotation and No_863972 order,pdf.lzh (contains "Request for quotation and No_863972 order,pdf.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Remcos

Link:

https://www.capesandbox.com/analysis/53427/

Detection(s):

SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

Launching a process

Creating a process with a hidden window

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/455302

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

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

Icon mismatch, binary includes an icon from a different legit application in order to fool users

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)

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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:

n/a

Link:

https://mwdb.cert.pl/sample/b8de7c07a62506baf48b1b5c799d33341a68117b34f3e5ee31a0ff23e87313f9/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-31 03:30:21 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xdphyb5geudlv5eldnohthjtgqngqel3gtz6l3rrud7sh2dtcp4q._file

Verdict:

malicious

Label(s):

remcos

RemcosRAT

485c1301f4bc84bc2d274f53222cf7ca5fbd8af8728d1aaa977a6574f577fb87

RemcosRAT

640e087a78aa77a9bb49027500f1f29f9d31f5b64c13c99b690ea813d0737fd4

RemcosRAT

83eb442b175e4fe5a2fde6e8d72618eee280398f89a81da1f9c118d2c46032d4

RemcosRAT

a1c561c21720c4f1c3626276db6afc2c12b1aae9304c78518763eb78454f84b8

RemcosRAT

b6cc6aed76d1b7e069209d41f75b0275cd99154d75672214c039d8bc0e2eae98

RemcosRAT

dd5712ad571847f064a5dfcd49ee82e3d2b42959bef23a773512dc41af030f6e

RemcosRAT

e17255079fd94918e8e003447c4698ec67af308f62fdadec71e9751d24d5d93f

RemcosRAT

e39c2e98071d4440d02e6d1aa86111536d6d01554489bd71f890455c05e424d3

RemcosRAT

eb1230ab4a5408a3d264bb51f1ff311fcf52aa97d52b801738cd5add365e77d2

RemcosRAT

+ 1'071 additional samples on MalwareBazaar

Result

Malware family:

remcos

Score:

10/10

Tags:

rat family:remcos

Link:

https://tria.ge/reports/200831-atkhrym9t2/

Behaviour

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Remcos

Malware Config

C2 Extraction:

jackyjian1965.hopto.org:5285

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

Threat name:

Kryptik

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b8de7c07a62506baf48b1b5c799d33341a68117b34f3e5ee31a0ff23e87313f9

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 Create hunting rule
Author:	abuse.ch

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