MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b541517770b13a62c4ea7002c3adc3b5a7a5f84b70053b53ade7e1418653cfac. 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 1 YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b541517770b13a62c4ea7002c3adc3b5a7a5f84b70053b53ade7e1418653cfac
SHA3-384 hash: 5635b2e90162697c66e8c531c63fceed516d85b57dd0e4a1c5cceffbcbcdc374efe52dc98989a2a542c46e93f168ad3c
SHA1 hash: 3aab181066ec5e5849d55642a822cb4be57b42d1
MD5 hash: 238654e2be62764775f5a2e4e586e706
humanhash: football-fillet-paris-helium
File name:DHLdocument11022020680908911.doc.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:39'424 bytes
First seen:2021-04-05 00:05:17 UTC
Last seen:2021-04-05 01:13:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 384:UszM/tpSi7x0ajdNgxYbrMmsoJahXon/o6hwRpllR1RqRVRSRlRURXOR+ckGb/We:U7/tpnB3MRBXoTiHbu7mrsiZwJdE
Threatray 116 similar samples on MalwareBazaar
TLSH C80393546188C294DE14FF7CD0B65E0467BE7EF9343DD88E8C8A78AB3EB364546E4209
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
185.191.231.252:38884

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
185.191.231.252:38884 https://threatfox.abuse.ch/ioc/6025/

Intelligence

File Origin
# of uploads :
2
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
DHLdocument11022020680908911.doc.exe
Verdict:
Malicious activity
Analysis date:
2021-04-05 00:08:50 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/379a64a2-88ca-4313-8d11-7298268a2055

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRat
Create hunting rule
Link:
https://www.capesandbox.com/analysis/132128/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.4844.21440.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Creating a file
Moving a recently created file
Launching a process
Creating a process with a hidden window
Creating a file in the Windows subdirectories
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Setting a single autorun event
Sending an HTTP GET request to an infection source
Adding exclusions to Windows Defender
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f4050c86-34a1-4aa8-b4f1-ac2c77c0ca7e
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/665695
Signature
Adds a directory exclusion to Windows Defender
Changes security center settings (notifications, updates, antivirus, firewall)
Creates an autostart registry key pointing to binary in C:\Windows
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with benign system names
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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 domain / URL
Sigma detected: Suspicious Double Extension
Sigma detected: System File Execution Location Anomaly
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AsyncRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 381776 Sample: DHLdocument1102202068090891... Startdate: 05/04/2021 Architecture: WINDOWS Score: 100 61 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->61 63 Multi AV Scanner detection for domain / URL 2->63 65 Found malware configuration 2->65 67 9 other signatures 2->67 7 DHLdocument11022020680908911.doc.exe 18 12 2->7         started        12 svchost.exe 2->12         started        14 svchost.exe 2->14         started        16 11 other processes 2->16 process3 dnsIp4 55 asdcqwdwqx.gq 172.67.160.253, 49707, 49729, 80 CLOUDFLARENETUS United States 7->55 45 C:\Windows\Cursors\...\svchost.exe, PE32 7->45 dropped 47 C:\Windows\...\svchost.exe:Zone.Identifier, ASCII 7->47 dropped 49 DHLdocument11022020680908911.doc.exe.log, ASCII 7->49 dropped 69 Creates an autostart registry key pointing to binary in C:\Windows 7->69 71 Adds a directory exclusion to Windows Defender 7->71 73 Tries to delay execution (extensive OutputDebugStringW loop) 7->73 83 2 other signatures 7->83 18 DHLdocument11022020680908911.doc.exe 7->18         started        21 powershell.exe 24 7->21         started        23 powershell.exe 25 7->23         started        25 powershell.exe 7->25         started        57 104.21.15.11, 49724, 80 CLOUDFLARENETUS United States 12->57 75 System process connects to network (likely due to code injection or exploit) 12->75 77 Machine Learning detection for dropped file 12->77 79 Drops executables to the windows directory (C:\Windows) and starts them 12->79 27 powershell.exe 12->27         started        29 powershell.exe 12->29         started        31 powershell.exe 12->31         started        33 WerFault.exe 14->33         started        59 127.0.0.1 unknown unknown 16->59 81 Changes security center settings (notifications, updates, antivirus, firewall) 16->81 35 WerFault.exe 16->35         started        file5 signatures6 process7 dnsIp8 51 185.191.231.252, 38884, 49731 UNREAL-SERVERSUS Netherlands 18->51 37 conhost.exe 21->37         started        39 conhost.exe 23->39         started        41 conhost.exe 25->41         started        43 conhost.exe 27->43         started        53 192.168.2.1 unknown unknown 33->53 process9
Gathering data
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wvavc53qwe5gfrhkoabmhlodwwt2l6cloactwu5n47qudbstz6wa._file
Verdict:
suspicious
Similar samples:
0036f48bec73d5fa22ff748cfbba749eca799c26076c59800c9b56b8c99982d5
AsyncRAT
029f8f91cce35bc2b66f10c473237024d772c4643e30b9a10acadfe3ce6640d3
AsyncRAT
2866f5ec70ebbefba6db86a947187a4d283b099e25cca3c25e4e9e21f821c713
AsyncRAT
2beff5844252baf24570e8cedfcf7c6037c038f61d93869c85e6c36868e41250
AsyncRAT
64f7230663961a028299cbdf42863e3402e6325864e453ad5ec743e05f3a5ce6
AsyncRAT
8e15f76149baa634caba6bcb021a5793f9b86c6290247d62a3f9628e5e147c7f
AsyncRAT
afd0e2a33836232d156324023353331d3dbc04364b85f61f7e01a7504cf14a18
AsyncRAT
ca22d64e33b5384518e1658aa66d9eb0e47ca7d1b72529219979f28003fa502d
AsyncRAT
d0f193101eb9a5a5a54c191dc7b3fafaf3126b7765faf885bdba255affce6e54
AsyncRAT
fe8e69539064f02829922daa446bed806a0fc74e0036d961f1fd53021444f529
AsyncRAT
+ 106 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat evasion persistence rat trojan
Link:
https://tria.ge/reports/210405-nmb7z3nsws/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Windows security modification
Async RAT payload
AsyncRat
Windows security bypass
Malware Config
C2 Extraction:
185.191.231.252:38884
Unpacked files
SH256 hash:
b541517770b13a62c4ea7002c3adc3b5a7a5f84b70053b53ade7e1418653cfac
MD5 hash:
238654e2be62764775f5a2e4e586e706
SHA1 hash:
3aab181066ec5e5849d55642a822cb4be57b42d1
Link:
https://www.unpac.me/results/e12d0a1d-c386-4ae2-8e01-1562dc0b672f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b541517770b13a62c4ea7002c3adc3b5a7a5f84b70053b53ade7e1418653cfac

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

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/132128/

Comments