MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781. 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: 13

Intelligence 13 IOCs YARA 11 File information Comments

SHA256 hash:	a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781
SHA3-384 hash:	82e8a0c3891dd5c19cbd2f682b64c4c52bc0f4896a6bbe35c1920f9a0775f1b2767a6b5503d10ce1d14c06ed398634b0
SHA1 hash:	f4810a564f903104caa08d39e7e4c0da38bcca40
MD5 hash:	e39f6969f5b5abf090c197d830b18bd7
humanhash:	lamp-pennsylvania-mike-hamper
File name:	e39f6969f5b5abf090c197d830b18bd7.exe
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	916'992 bytes
First seen:	2022-09-16 15:18:38 UTC
Last seen:	2022-09-16 18:17:48 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	24576:nd2tWD4Tow3BOEQ1YQj4Ip7kutYuhtfXw1CFJAO4cXwKlhgR8:YtWuOEQ+QDhOuhtI1WSCgmhgR
TLSH	T1F015DF01817886EEEB6A9771895C97437AD4AC51C2A3CB2D89EC7EBFD2D0C2D1356370
TrID	72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter	abuse_ch
Tags:	exe RAT RemcosRAT

Intelligence

File Origin

# of uploads :

# of downloads :

318

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

e39f6969f5b5abf090c197d830b18bd7.exe

Verdict:

Suspicious activity

Analysis date:

2022-09-16 15:18:58 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/946c4be6-a71f-4d46-a69c-408771ad115a

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/310600/

Detection(s):

SecuriteInfo.com.Variant.Lazy.244524.31232.12074.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Launching a process

Creating a process with a hidden window

Using the Windows Management Instrumentation requests

Creating a file in the %AppData% subdirectories

Creating a file

DNS request

Enabling the 'hidden' option for recently created files

Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch

Query of malicious DNS domain

Unauthorized injection to a system process

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/6324947466ac326512449735/reports/e65139d0-dc23-43fc-b901-56f927087055/overview

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

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/3b10bf62-5039-4e17-87f4-91230b516d54

Result

Threat name:

Remcos

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1071722

Signature

.NET source code contains potential unpacker

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Encrypted powershell cmdline option found

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Potential dropper URLs found in powershell memory

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

Yara detected Costura Assembly Loader

Yara detected Remcos RAT

Behaviour

Behavior Graph:

Download SVG

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781/

Threat name:

ByteCode-MSIL.Backdoor.Androm

Status:

Malicious

First seen:

2022-09-16 11:22:50 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 26 (73.08%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=urw4sqrim5atvl64wsgvw2occtkb72hrpp4z4rcu5ggeiv5mk6aq._file

Verdict:

malicious

Label(s):

remcos

Result

Malware family:

remcos

Score:

10/10

Tags:

family:remcos botnet:09162022 persistence rat

Link:

https://tria.ge/reports/220916-sp7hfabggl/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Suspicious use of SetThreadContext

Adds Run key to start application

Checks computer location settings

Remcos

Malware Config

C2 Extraction:

nikahuve.ac.ug:6969
kalskala.ac.ug:6969
tuekisaa.ac.ug:6969
parthaha.ac.ug:6969

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/fdec7c4f-975e-4e2e-aac8-41d72540b56d

Unpacked files

SH256 hash:

a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781

MD5 hash:

e39f6969f5b5abf090c197d830b18bd7

SHA1 hash:

f4810a564f903104caa08d39e7e4c0da38bcca40

Link:

https://www.unpac.me/results/4d6c021e-f575-4e08-925f-1aacbf8d2ed3/

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

Threat name:

Suspicious File

Score:

0.38

Link:

https://yomi.yoroi.company/submissions/a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781

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:	pe_imphash Create hunting rule

Rule name:	RansomwareTest3 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RansomwareTest4 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RansomwareTest5 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	RansomwareTest6 Create hunting rule
Author:	Daoyuan Wu
Description:	Test Ransomware YARA rules

Rule name:	Record_Breaker_Similarities Create hunting rule
Author:	DigitalPanda

Rule name:	Remcos Create hunting rule
Author:	kevoreilly
Description:	Remcos Payload

Rule name:	REMCOS_RAT_variants Create hunting rule

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

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

exe a46dc9422867413aafdcb48d5b69c214d41fe8f17bf99e4454e98c4457ac5781

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2305328/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/310600/

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