MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3651d26ad25341903dad63838c5f178b359a0d3700dadc3f25eeb1e51235c49e. 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 5 File information Comments

SHA256 hash: 3651d26ad25341903dad63838c5f178b359a0d3700dadc3f25eeb1e51235c49e
SHA3-384 hash: 9f060d0c8322edc4c94644fcf020e54a2225e076472b25ded35d16591ece2ff0e9d4757f9514cfcc65432d82542d0cc9
SHA1 hash: 839ea401250a04b7f4e935ed59d3233e58031637
MD5 hash: f1f1ef6bca7e207aff4773fd8f5c87c6
humanhash: mobile-enemy-paris-twelve
File name:2020RFQ4883995737588375877.exe
Download: download sample
Signature AsyncRAT
File size:293'376 bytes
First seen:2020-11-26 06:46:53 UTC
Last seen:2020-11-26 08:42:47 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:W0dSjoLnIeWgdTZhyNG29LqVou9cszR/nl+56seiFFtzRXnPTQ4Ac/Ew:KqZhyQ29mZcgR49m
Threatray 481 similar samples on MalwareBazaar
TLSH 6E54E0DAF128AB22E47C9BF99440DDB823F588EA64F3D5788CD1B0D75964B4C0E41A0F
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: slot0.fralidre.com
Sending IP: 45.85.90.154
From: Techno Plast Consultancy <office@fralidre.com>
Reply-To: Techno Plast Consultancy < b.rabani@yandex.com>
Subject: AW: ORDER CONFIRMATION FROM TECHNO PLAST CONSULTANCY
Attachment: 2020RFQ4883995737588375877.xz (contains "2020RFQ4883995737588375877.exe")

AsyncRAT C2:
185.19.85.155:5080

% Information related to '185.19.84.0 - 185.19.85.255'

% Abuse contact for '185.19.84.0 - 185.19.85.255' is 'abuse@datawire.ch'

inetnum: 185.19.84.0 - 185.19.85.255
netname: DATAWIRE-DATACENTERS
descr: CUSTOMERS ZG01
country: CH
admin-c: DA4314-RIPE
tech-c: DA4314-RIPE
status: ASSIGNED PA
mnt-by: DATAWIRE-NOC
created: 2013-09-23T14:18:55Z
last-modified: 2013-09-23T14:18:55Z
source: RIPE


Intelligence


File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Enabling autorun by creating a file
Result
Verdict:
UNKNOWN
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.adwa.evad
Score:
80 / 100
Signature
Binary contains a suspicious time stamp
Drops PE files to the startup folder
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: WScript or CScript Dropper
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 323000 Sample: 2020RFQ4883995737588375877.exe Startdate: 26/11/2020 Architecture: WINDOWS Score: 80 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected AsyncRAT 2->39 41 Suspicious powershell command line found 2->41 43 4 other signatures 2->43 9 2020RFQ4883995737588375877.exe 3 2->9         started        11 2020RFQ4883995737588375877.exe 2 2->11         started        process3 process4 13 cmd.exe 1 9->13         started        16 2020RFQ4883995737588375877.exe 2 11->16         started        signatures5 47 Suspicious powershell command line found 13->47 18 powershell.exe 18 13->18         started        20 conhost.exe 13->20         started        22 timeout.exe 1 13->22         started        process6 process7 24 wscript.exe 18->24         started        27 2020RFQ4883995737588375877.exe 3 18->27         started        file8 45 Drops PE files to the startup folder 24->45 33 C:\...\2020RFQ4883995737588375877.exe.log, ASCII 27->33 dropped 30 2020RFQ4883995737588375877.exe 1 2 27->30         started        signatures9 process10 dnsIp11 35 185.19.85.155, 49751, 49752, 49753 DATAWIRE-ASCH Switzerland 30->35
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2020-11-26 03:58:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Drops startup file
Async RAT payload
Beds Protector Packer
AsyncRat
Malware Config
C2 Extraction:
185.19.85.155:5080
Unpacked files
SH256 hash:
3651d26ad25341903dad63838c5f178b359a0d3700dadc3f25eeb1e51235c49e
MD5 hash:
f1f1ef6bca7e207aff4773fd8f5c87c6
SHA1 hash:
839ea401250a04b7f4e935ed59d3233e58031637
SH256 hash:
0f84e9aee8192c7240b6e90e9890f6dad5e0e4237bbb2568381a2224dc9eba6f
MD5 hash:
200aa6b683c7d125820d4371b4f67c25
SHA1 hash:
6663d79446b477db7d1d3ed569481ff174f7ca7d
Detections:
win_asyncrat_w0
SH256 hash:
11479a18fb132670df8eb308786a8f495777b21787c2df938aa871c13c5572f9
MD5 hash:
467a55dfe9317b7d3343de554347e026
SHA1 hash:
a27adcc42281c1b0739f47cd960b44f279efba7a
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.

Rule name:asyncrat
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:Reverse_text_bin_mem
Author:James_inthe_box
Description:Reverse text detected
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:win_asyncrat_j1
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
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

Executable exe 3651d26ad25341903dad63838c5f178b359a0d3700dadc3f25eeb1e51235c49e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments