MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8caf62d462e50ef6d1d21a018b8c3f99ef7713af0353d7fa23660f6a6f04a4b9. 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: 12


Intelligence 12 IOCs 1 YARA 5 File information Comments 1

SHA256 hash: 8caf62d462e50ef6d1d21a018b8c3f99ef7713af0353d7fa23660f6a6f04a4b9
SHA3-384 hash: 1a6041ec175b2d193f16f7ac26cd5292d6f9810baf9b1c91e44ad445d7405ffd87c7ae1e07d956ce4bb9c08f97b09bf1
SHA1 hash: d23747af1572531f22f53d04cc6af92c5ff4b58e
MD5 hash: ce51f3084457fb6dc951fc227876eae4
humanhash: vegan-river-happy-green
File name:9MMC9QsM.exe
Download: download sample
Signature AsyncRAT
File size:48'640 bytes
First seen:2021-04-25 13:47:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:euQaNTREhzxrWUXWm5mo2q7q3VZhksnuPI1f/MtihYCT0bn0RaTyLU9gtzA+425y:euQaNTR+J2dXnX1f/VyCYbn0M+AkA+zo
Threatray 755 similar samples on MalwareBazaar
TLSH 9B232C003BE9823BF27E4F78A9F321458676F2677A02DA4D1CC442D75613FC69A425EE
Reporter pmelson
Tags:AsyncRAT exe

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
139.99.73.120:8808 https://threatfox.abuse.ch/ioc/9935/

Intelligence


File Origin
# of uploads :
1
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9MMC9QsM.exe
Verdict:
Malicious activity
Analysis date:
2021-04-25 13:51:04 UTC
Tags:
trojan rat asyncrat

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

Behaviour
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Creating a file
Launching a process
Sending a UDP request
Creating a process from a recently created file
Connection attempt
Unauthorized injection to a recently created process
Enabling autorun by creating a file
Result
Verdict:
MALICIOUS
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.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
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
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
Yara detected AsyncRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 397437 Sample: 9MMC9QsM.exe Startdate: 25/04/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Antivirus / Scanner detection for submitted sample 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 3 other signatures 2->51 9 SCAN.exe 2 2->9         started        13 9MMC9QsM.exe 7 2->13         started        process3 dnsIp4 39 139.99.73.120, 49734, 49742, 49747 OVHFR Canada 9->39 41 127.0.0.1 unknown unknown 9->41 53 Antivirus detection for dropped file 9->53 55 Multi AV Scanner detection for dropped file 9->55 57 Machine Learning detection for dropped file 9->57 35 C:\Users\user\AppData\Roaming\SCAN.exe, PE32 13->35 dropped 37 C:\Users\user\AppData\...\9MMC9QsM.exe.log, ASCII 13->37 dropped 16 cmd.exe 1 13->16         started        19 cmd.exe 1 13->19         started        file5 signatures6 process7 signatures8 43 Uses schtasks.exe or at.exe to add and modify task schedules 16->43 21 conhost.exe 16->21         started        23 schtasks.exe 1 16->23         started        25 SCAN.exe 3 19->25         started        27 conhost.exe 19->27         started        29 timeout.exe 1 19->29         started        process9 process10 31 MpCmdRun.exe 1 21->31         started        process11 33 conhost.exe 31->33         started       
Threat name:
ByteCode-MSIL.Trojan.SemperDotNet
Status:
Malicious
First seen:
2021-04-25 13:48:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
37 of 47 (78.72%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat rat
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
127.0.0.1:5555
139.99.73.120:6606
139.99.73.120:7707
139.99.73.120:8808
139.99.73.120:5555
Unpacked files
SH256 hash:
8caf62d462e50ef6d1d21a018b8c3f99ef7713af0353d7fa23660f6a6f04a4b9
MD5 hash:
ce51f3084457fb6dc951fc227876eae4
SHA1 hash:
d23747af1572531f22f53d04cc6af92c5ff4b58e
Detections:
win_asyncrat_w0
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.

Web download

AsyncRAT

Executable exe 8caf62d462e50ef6d1d21a018b8c3f99ef7713af0353d7fa23660f6a6f04a4b9

(this sample)

Comments



Avatar
a̵c̵c̸i̵d̷e̵n̷t̴a̷l̴r̵e̷b̸e̴l̸ commented on 2021-04-25 13:59:48 UTC

============================================================
MBC behaviors list (github.com/accidentalrebel/mbcscan):
============================================================
0) [B0009] Anti-Behavioral Analysis::Virtual Machine Detection