MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 91b136e8530507fba801e208e1f25a5ae1e79a5f2686a25d00f9098bd31752f6. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 91b136e8530507fba801e208e1f25a5ae1e79a5f2686a25d00f9098bd31752f6
SHA3-384 hash: 0fdadcea5c88903634c87f208946ae27135bc3710710358038992290d66f58c003be5816bfd321baaf58078b31314ec4
SHA1 hash: e9d2c7042bec40c97faf6edf507b6ad3815e90a3
MD5 hash: eba312a29ec2ba377a849a56517747d2
humanhash: glucose-friend-nineteen-bulldog
File name:91B136E8530507FBA801E208E1F25A5AE1E79A5F2686A.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:508'416 bytes
First seen:2022-06-29 17:13:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:uMc3Pr+PB0L6efSl00L6efSl00L6efSl00L6efSlknR:uMkIB0uefSO0uefSO0uefSO0uefSS
TLSH T168B47B1B7389AF07D018017681DF791403F2A98A2B33D7BA7D88BF8D5A537529D8498F
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon e0d4a8d8e8a6d4e0 (1 x AsyncRAT)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
91.109.180.9:7707

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
91.109.180.9:7707 https://threatfox.abuse.ch/ioc/736444/

Intelligence

File Origin
# of uploads :
1
# of downloads :
251
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/284360/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
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
Creating a process from a recently created file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62bc8870fb0f8ab80895b186/reports/24c14a96-1b90-4a7c-86cf-8ad7774b0f4d/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/558fbb6f-4e89-486f-a8f0-dd954d545aef
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1022070
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Drops PE files with benign system names
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AsyncRAT
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 654566 Sample: 91B136E8530507FBA801E208E1F... Startdate: 29/06/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus / Scanner detection for submitted sample 2->48 50 9 other signatures 2->50 7 91B136E8530507FBA801E208E1F25A5AE1E79A5F2686A.exe 7 2->7         started        process3 file4 28 C:\Users\user\AppData\Roaming\explorer.exe, PE32 7->28 dropped 30 91B136E8530507FBA8...E79A5F2686A.exe.log, ASCII 7->30 dropped 52 Protects its processes via BreakOnTermination flag 7->52 54 Drops PE files with benign system names 7->54 56 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 7->56 11 cmd.exe 1 7->11         started        13 cmd.exe 1 7->13         started        signatures5 process6 signatures7 16 explorer.exe 2 11->16         started        20 conhost.exe 11->20         started        22 timeout.exe 1 11->22         started        58 Uses schtasks.exe or at.exe to add and modify task schedules 13->58 24 conhost.exe 13->24         started        26 schtasks.exe 1 13->26         started        process8 dnsIp9 32 milla2.ddns.net 16->32 34 milla.publicvm.com 91.109.180.9, 49778, 7707 IELOIELOMainNetworkFR France 16->34 36 Antivirus detection for dropped file 16->36 38 System process connects to network (likely due to code injection or exploit) 16->38 40 Multi AV Scanner detection for dropped file 16->40 42 2 other signatures 16->42 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/91b136e8530507fba801e208e1f25a5ae1e79a5f2686a25d00f9098bd31752f6/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-12-31 05:53:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=sgytn2ctaud7xkab4ieod4s2llq6pgs7e2dkexia7eeyxuyxkl3a._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat suricata
Link:
https://tria.ge/reports/220629-vrzaysbddj/
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
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Generic AsyncRAT Style SSL Cert
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
milla.publicvm.com:6606
milla.publicvm.com:7707
milla.publicvm.com:8808
milla2.ddns.net:6606
milla2.ddns.net:7707
milla2.ddns.net:8808
Unpacked files
SH256 hash:
146d512ebe2e23350bb736c1ea9f13546d3d0ce4f2bcabab11f2b4e57dfd0341
MD5 hash:
9163cc434c161f7b03380a1d1b09c6f5
SHA1 hash:
87e43fb2e00aab0751cbadd6cb40cc954238165e
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/82adc863-4d0c-4477-ab46-1be69406726b/
SH256 hash:
91b136e8530507fba801e208e1f25a5ae1e79a5f2686a25d00f9098bd31752f6
MD5 hash:
eba312a29ec2ba377a849a56517747d2
SHA1 hash:
e9d2c7042bec40c97faf6edf507b6ad3815e90a3
Link:
https://www.unpac.me/results/82adc863-4d0c-4477-ab46-1be69406726b/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/91b136e85305/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/91b136e8530507fba801e208e1f25a5ae1e79a5f2686a25d00f9098bd31752f6

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/284360/

Comments