MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa9c8f532405507cb8a00d6c0d4ecd6888df2524037cde8d3d6fb33ff52bfb91. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa9c8f532405507cb8a00d6c0d4ecd6888df2524037cde8d3d6fb33ff52bfb91
SHA3-384 hash: f37829d38825ee07d2111765e8063a9f838cbdb281020d4b23780dcd9f878b8436bb6bc678525890cfb224fb8997d00a
SHA1 hash: 63dc61fa08c045ba71a57d02f9172ae54f17f9b5
MD5 hash: c304bfc8ebaaff7537e9556b8e9a8205
humanhash: uniform-november-lion-jig
File name:2020.09.01.SS.08.39_Export.pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:907'264 bytes
First seen:2020-09-01 15:24:34 UTC
Last seen:2020-09-01 15:38:02 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:FxHO0dx6rvPVLxioUkfjHJ9vHNG3LS/MSReCL20Nm5d6kry4w6M5jksOhxfY8lU:Fo7VLsojvNiSmCL2GCdRwAsOhTlU
Threatray 296 similar samples on MalwareBazaar
TLSH 07151226F6778325E169B6BB0D63CBAC13A0A505FB77EE1EDE40A205778876053137C2
Reporter James_inthe_box
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
108
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Ispy
Create hunting rule
Link:
https://www.capesandbox.com/analysis/54072/
Detection(s):
SecuriteInfo.com.Malware.27577.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/456757
Signature
Allocates memory in foreign processes
Connects to a pastebin service (likely for C&C)
Initial sample is a PE file and has a suspicious name
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
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)
Uses schtasks.exe or at.exe to add and modify task schedules
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/aa9c8f532405507cb8a00d6c0d4ecd6888df2524037cde8d3d6fb33ff52bfb91/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-01 15:23:58 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vkoi6uzeavihzofabvwa2twnncen6jjean6n5dj5n6zt75jl7oiq._file
Verdict:
malicious
Similar samples:
0ec0923c02440e9252f211ff8a251e246cbd29d94588ff423caf76b58b1ea30c
AsyncRAT
12859bb50366c248e9488a8852c0923bcb4135f8fcedcbac19228fe329ff39a7
AsyncRAT
17c38ccce635b7567fb09e4e48c53b5661bdd29e827917a447f0de7741694d71
AsyncRAT
25babc8d9be2e6cc3cdd408fac70bea0d9c3f0c3480945d3bcb374c88b6f82c1
AsyncRAT
3e9cb7d6eaaa8c07d939eca0bbfd2d670e349de2dd018c8d30ab59b5e19ddc95
AsyncRAT
682be0853ccd6f60deb69d27941a628758c4e13e7d2e6ee95a95f415f3a9f0c6
AsyncRAT
847b3580cba59e7f4b453488c263544f3c481027d2ddf4f9f3988d84afc35c85
AsyncRAT
a4df5e9015f70b47dc4f2e6bae0fbeb9d108979e0cda7ef54aa123a0d33bdf8b
AsyncRAT
c8cc7c1a1210a082960b929c3598521979e16c1c6f5626b8ad29b9618ab5e18c
AsyncRAT
d0d47f1c08031d4297f713a98d6ca969009df8c0f637110622190d4ff9727106
AsyncRAT
+ 286 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
rat family:asyncrat
Link:
https://tria.ge/reports/200901-3z3yj5xffn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
AsyncRat
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/aa9c8f532405507cb8a00d6c0d4ecd6888df2524037cde8d3d6fb33ff52bfb91

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

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/54072/

Comments