MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7da9ef167fb5bdefa3510dd1a1e66fbcdb4b9911714e3da7b4975963fb14850b. 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: 8

Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash:	7da9ef167fb5bdefa3510dd1a1e66fbcdb4b9911714e3da7b4975963fb14850b
SHA3-384 hash:	481ab7e5768164fd374943321a50369f7d1ace6f2a7433f26b83f74ead531c6ae2e20a466fe2fe1f34f2d4730875d5a8
SHA1 hash:	3143925c79560b5fb94cb0c618ef115930b92f3a
MD5 hash:	70e174d28075310f511a98316f42f1e0
humanhash:	quebec-robert-rugby-leopard
File name:	TNT,PDF.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	440'320 bytes
First seen:	2020-07-16 19:17:41 UTC
Last seen:	2020-07-16 20:13:12 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	6144:ilMtZ6um4GrilAkQ9aRdeHfN6MarBDiBXTTbFXW9PtF:iytZwil8czFjodhXiPtF
Threatray	451 similar samples on MalwareBazaar
TLSH	BF947E17692E99B6DF38677D40240CD590F01C4C66E9B21A2BB97D3CCA3D5225E0FE2E
Reporter	abuse_ch
Tags:	AsyncRAT exe nVpn RAT TNT

abuse_ch

Malspam distributing AsyncRAT:

HELO: dante.webhosting.it
Sending IP: 178.162.199.43
From: TNT Express <notices@tnt.com>
Subject: Su paquete de Isabella ha llegado a nuestra oficina.
Attachment: TNT,PDF.iso (contains "TNT,PDF.exe")

AsyncRAT C2:
194.5.98.8:8824

Hosted on nVpn:

% Information related to '194.5.98.0 - 194.5.98.255'

% Abuse contact for '194.5.98.0 - 194.5.98.255' is 'abuse@privacyfirst.sh'

inetnum: 194.5.98.0 - 194.5.98.255
remarks: This prefix is assigned to The PRIVACYFIRST Project, which
remarks: operates infrastructure jointly used by various VPN service
remarks: providers. We have a very strong focus on privacy and freedom.
remarks: In case of abuse, we encourage all international law enforcement
remarks: agencies to get in touch with our abuse contact. Due to the fact
remarks: that we keep no logs of user activities and only share data when
remarks: it is legally required under our jurisdiction, it is very unlikely
remarks: for a demand of user information to be successful. Still, that
remarks: should not deter you from reaching out.
netname: PRIVACYFIRST-NOR
country: NO
descr: Sandefjord
admin-c: TPP15-RIPE
tech-c: TPP15-RIPE
org: ORG-TPP6-RIPE
status: ASSIGNED PA
mnt-by: PRIVACYFIRST-MNT
created: 2019-04-26T16:42:54Z
last-modified: 2020-07-14T18:04:10Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

AsyncRat

Link:

https://www.capesandbox.com/analysis/27055/

Detection(s):

SecuriteInfo.com.Njrat.15988.12862.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Running batch commands

Launching a process

Creating a file in the %AppData% directory

Creating a process from a recently created file

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

Result

Threat name:

AsyncRAT

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/388850

Signature

Allocates memory in foreign processes

Connects to a pastebin service (likely for C&C)

Creates an autostart registry key pointing to binary in C:\Windows

Injects a PE file into a foreign processes

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: Add file from suspicious location to autostart registry

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

Writes to foreign memory regions

Yara detected AntiVM_3

Yara detected AsyncRAT

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/7da9ef167fb5bdefa3510dd1a1e66fbcdb4b9911714e3da7b4975963fb14850b/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-16 19:19:05 UTC

AV detection:

23 of 29 (79.31%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=pwu66ft7ww667i2rbxi2dztpxtnuxgirofhd3j5us5mwh6yuqufq._file

Verdict:

malicious

Result

Malware family:

asyncrat

Score:

10/10

Tags:

rat persistence family:asyncrat

Link:

https://tria.ge/reports/200716-pmb7nvtj1j/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetThreadContext

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Loads dropped DLL

Executes dropped EXE

Async RAT payload

AsyncRat

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

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.