MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82. 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

AsyncRAT

Vendor detections: 10

Intelligence 10 IOCs YARA 5 File information Comments

SHA256 hash:	c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82
SHA3-384 hash:	549b241c80fc69d888744e6fa884fdc2803f69694dd9c8138af85429eec41448dc09ce6d7b99a00d8ff9aef636b40a68
SHA1 hash:	c372ab627e0da8f59fc31b212e472deda3c460db
MD5 hash:	d1084928e426106d30ddea51fbedae58
humanhash:	eight-grey-sweet-low
File name:	invoicedHusrLjViL.scr
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	949'760 bytes
First seen:	2021-01-19 07:35:53 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep	12288:4zNQc13QQqR+dyJ+BoECo42Y1e0LwDKQkWV84U3gCtYXX9zOcqCL:KG+dyJ+WpgYUGweQkP4U3geAg
Threatray	123 similar samples on MalwareBazaar
TLSH	41159C0122883F18F1BD573784A8485187FBFC11EB22D92E6DD539AE5AB2FE19607317
Reporter	abuse_ch
Tags:	AsyncRAT scr

Intelligence

File Origin

# of uploads :

# of downloads :

174

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

invoicedHusrLjViL.scr

Verdict:

Malicious activity

Analysis date:

2021-01-19 08:20:35 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/a6e7f424-2650-41ef-a8a6-1cda87787ae6

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

AsyncRat

Link:

https://www.capesandbox.com/analysis/112803/

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a UDP request

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.

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/584667

Signature

Initial sample is a PE file and has a suspicious name

Machine Learning detection for dropped file

Machine Learning detection for sample

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

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 AsyncRAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82/

Threat name:

Win32.Trojan.Wacatac

Status:

Malicious

First seen:

2021-01-19 06:22:49 UTC

AV detection:

7 of 46 (15.22%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=yx2eju7dqcgxgi7ex2v65m75evh4tncycv5ouociop6r3paft2ba._file

Verdict:

unknown

Result

Malware family:

asyncrat

Score:

10/10

Tags:

family:asyncrat rat

Link:

https://tria.ge/reports/210119-yl3cmgat8a/

Behaviour

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Async RAT payload

AsyncRat

Malware Config

C2 Extraction:

127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
79.134.225.32:6606
79.134.225.32:7707
79.134.225.32:8808
79.134.225.26:6606
79.134.225.26:7707
79.134.225.26:8808

Unpacked files

SH256 hash:

52d35fabfc97d3e903b5d9eb253e8f84d1dfee2967fa9dde6d6ca37cc61951c5

MD5 hash:

b5a7f2596efe4c5fc5f5d2c733d49259

SHA1 hash:

c121578124375dc293e4daf12fac22442a8131b6

Link:

https://www.unpac.me/results/e627e00b-b7ae-4f81-8e12-cb215bfd08bb/

SH256 hash:

c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82

MD5 hash:

d1084928e426106d30ddea51fbedae58

SHA1 hash:

c372ab627e0da8f59fc31b212e472deda3c460db

Link:

https://www.unpac.me/results/e627e00b-b7ae-4f81-8e12-cb215bfd08bb/

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/c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82

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:	asyncrat Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

Rule name:	INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse Create hunting rule
Author:	ditekSHen
Description:	Detects file containing reversed ASEP Autorun registry keys

Rule name:	Reverse_text_bin_mem Create hunting rule
Author:	James_inthe_box
Description:	Reverse text detected

Rule name:	win_asyncrat_j1 Create hunting rule
Author:	Johannes Bader @viql
Description:	detects AsyncRAT

Rule name:	win_asyncrat_w0 Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect AsyncRat in memory
Reference:	internal research

File information

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

Malspam

AsyncRAT

exe c5f444d3e3808d7323e4beabeeb3fd254fc9b458157aea384873fd1dbc059e82

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/112803/

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