MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 137b5dc137f3f0c5bc3d4e1cd1f2396b33bd5b87291f72013a98b319c130b451. 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: 6

Intelligence 6 IOCs YARA 1 File information Comments

SHA256 hash:	137b5dc137f3f0c5bc3d4e1cd1f2396b33bd5b87291f72013a98b319c130b451
SHA3-384 hash:	ea5356e684b69711ce82bd67eec714e8dacb40da0f1862fdb4e6e9c0577c1966fa5573f119af838c0909df8fa6e452fb
SHA1 hash:	ad7edef211023282575141223b90795b3c278303
MD5 hash:	78c4eb63d908b3495053aee51d9d8785
humanhash:	angel-ohio-blossom-burger
File name:	New Po 90097865780008986112345660090190.exe
Download:	download sample
Signature	AsyncRAT Create hunting rule
File size:	599'040 bytes
First seen:	2020-07-06 06:38:01 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep	6144:6So/gf/FKn+q4vioL8bTN5QbVCN8We7sLhCm:l7f/SLwKbTN5OCNcsVC
Threatray	419 similar samples on MalwareBazaar
TLSH	A9D4B5369E57C410C8AE0FB5FC22E1C28FA95D8911A1F2262DFCB2245DB1E9F46513BD
Reporter	abuse_ch
Tags:	AsyncRAT exe nVpn RAT

abuse_ch

Malspam distributing AsyncRAT:

HELO: WIN-KP3NFSDUTC3
Sending IP: 172.93.187.166
From: Williams <william.chen@medifun.com.tw>
Reply-To: william.chen@medifun.com.tw
Subject: New Order
Attachment: New Po 90097865780008986112345660090190.pdf.z (contains "New Po 90097865780008986112345660090190.exe")

AsyncRAT C2s:
nobawi.dvrdns.org:1515 (79.134.225.125)
176.107.185.1:3021

Pointing to nVpn:

% Information related to '79.134.225.64 - 79.134.225.127'

% Abuse contact for '79.134.225.64 - 79.134.225.127' is 'abuse@your-vpn.network'

inetnum: 79.134.225.64 - 79.134.225.127
netname: YOUR_VPN_NETWORK
country: DE
remarks: ****************************************************
remarks: This subnet belongs to a VPN service provider.
remarks: We protect the right to privacy, which means
remarks: we don't log the activities of our users.
remarks: ****************************************************
admin-c: EH4074-RIPE
tech-c: YVN10-RIPE
status: ASSIGNED PA
abuse-c: YVN10-RIPE
org: ORG-YVN1-RIPE
mnt-by: AF15-MNT
created: 2019-07-19T18:26:38Z
last-modified: 2019-07-19T18:51:28Z
source: RIPE

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Gathering data

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% subdirectories

Creating a process from a recently created file

Using the Windows Management Instrumentation requests

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

Unauthorized injection to a recently created process by context flags manipulation

Sending a TCP request to an infection source

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/137b5dc137f3f0c5bc3d4e1cd1f2396b33bd5b87291f72013a98b319c130b451/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-07-06 06:39:07 UTC

AV detection:

18 of 29 (62.07%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=cn5v3qjx6pymlpb5jyond4rznmz32w4hfepxeaj2tczrtqjqwriq._file

Verdict:

malicious

Label(s):

agenttesla

Result

Malware family:

asyncrat

Score:

10/10

Tags:

persistence rat family:asyncrat

Link:

https://tria.ge/reports/200706-sglj65t7he/

Behaviour

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Drops file in System32 directory

Adds Run entry to start application

Loads dropped DLL

Executes dropped EXE

Modifies WinLogon for persistence

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.