MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7b35f96dd3b10e207d17ad146b9be7ea80ae88a0370ce0a5ae5f9681a87fc2c. 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: 9


Intelligence 9 IOCs YARA 5 File information Comments

SHA256 hash: c7b35f96dd3b10e207d17ad146b9be7ea80ae88a0370ce0a5ae5f9681a87fc2c
SHA3-384 hash: e0f1b553ae27c83173ce8afcde22e67284525ee3926503b5bd002882a2de7fe689c510808a40b47cc1c2cd888d8ea0b8
SHA1 hash: fe67206628fdf19615d2ca1fc1ad317da0b741e6
MD5 hash: 0fd8645e2569d9188996ca754f71b406
humanhash: oven-fanta-lemon-india
File name:item list _ pdf.exe
Download: download sample
Signature AsyncRAT
File size:667'136 bytes
First seen:2021-03-04 07:23:55 UTC
Last seen:2021-03-04 09:09:46 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:AkJ0s/py899phJ9Jq0/E1HQtFRRCaB8ycdx8HXL+YJvh9GMllEX3:9/py8X1q0MpQrRgaB8/xYgX
Threatray 654 similar samples on MalwareBazaar
TLSH 1BE48D7076E95648F43A4B795B6032619BF7BC36EF10D00D7CA542894A33A81DB72B3B
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
Malspam distributing AsyncRAT:

HELO: mail.webtarhelyed.eu
Sending IP: 212.108.200.19
From: info@hmksz.hu
Subject: URGENT INQUIRY
Attachment: item list _ pdf.zip (contains "item list _ pdf.exe")

AsyncRAT C2:
08099311.duckdns.org:1508 (160.20.147.107)

Intelligence


File Origin
# of uploads :
2
# of downloads :
124
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
item list _ pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-03-04 07:26:38 UTC
Tags:
trojan rat asyncrat

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Status:
Malicious
First seen:
2021-03-04 07:07:31 UTC
AV detection:
2 of 49 (4.08%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat spyware
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
08099311.duckdns.org:1508
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
SH256 hash:
c7b35f96dd3b10e207d17ad146b9be7ea80ae88a0370ce0a5ae5f9681a87fc2c
MD5 hash:
0fd8645e2569d9188996ca754f71b406
SHA1 hash:
fe67206628fdf19615d2ca1fc1ad317da0b741e6
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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:Reverse_text_bin_mem
Author:James_inthe_box
Description:Reverse text detected
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 c7b35f96dd3b10e207d17ad146b9be7ea80ae88a0370ce0a5ae5f9681a87fc2c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments