MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860. 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: 11


Intelligence 11 IOCs YARA 21 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860
SHA3-384 hash: c94baf683a1194032f9514fec8f5dc039637ef277c95f2d9950af567e9ca591a016edad4de5ab762aac5fe9780472542
SHA1 hash: d3e09c1b5ca8fab9226337046f551d99d0b0bb70
MD5 hash: a80e72c6e6b9521eefb526311db84119
humanhash: equal-white-oxygen-oxygen
File name:a80e72c6e6b9521eefb526311db84119
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:367'104 bytes
First seen:2021-07-05 07:12:05 UTC
Last seen:2021-07-05 07:54:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:nMafIEbtJhHgK00S4YNgME9FPH/qgUmTqF/OswODS0hYmuQ4pf:nTIWJ5gK0/NgME3HygUmTI/PYvQ4pf
Threatray 2 similar samples on MalwareBazaar
TLSH 9474E06E77C92BA5D9B9673045EA531143F6D38BB637CA063EC806E90F917CC4A40BC9
Reporter zbetcheckin
Tags:32 AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a80e72c6e6b9521eefb526311db84119
Verdict:
Malicious activity
Analysis date:
2021-07-05 07:15:01 UTC
Tags:
stealer evasion
Link:
https://app.any.run/tasks/8cea4c0e-2755-45ae-9621-9ac4e0967c22

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
StormKitty
Create hunting rule
Link:
https://www.capesandbox.com/analysis/169702/
Detection(s):
SecuriteInfo.com.Trojan.Siggen14.19990.1787.31678.UNOFFICIAL
Create hunting rule

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/2df928d8-fb7e-4447-a632-27d7446b2549
Result
Threat name:
AsyncRAT StormKitty Telegram RAT
Create hunting rule
Detection:
malicious
Classification:
rans.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/811741
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code references suspicious native API functions
Contains functionality to log keystrokes (.Net Source)
Drops PE files to the startup folder
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
May check the online IP address of the machine
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PowerShell case anomaly found
Powershell drops PE file
Protects its processes via BreakOnTermination flag
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Capture Wi-Fi password
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)
Tries to harvest and steal WLAN passwords
Uses netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AsyncRAT
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 444152 Sample: yA3fyKAcpi Startdate: 05/07/2021 Architecture: WINDOWS Score: 100 104 Sigma detected: Capture Wi-Fi password 2->104 106 Multi AV Scanner detection for dropped file 2->106 108 Multi AV Scanner detection for submitted file 2->108 110 10 other signatures 2->110 10 yA3fyKAcpi.exe 3 2->10         started        14 yA3fyKAcpi.exe 2 2->14         started        16 OpenWith.exe 2->16         started        process3 file4 90 C:\Users\user\AppData\...\yA3fyKAcpi.exe.log, ASCII 10->90 dropped 130 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 10->130 132 May check the online IP address of the machine 10->132 134 Uses schtasks.exe or at.exe to add and modify task schedules 10->134 136 Tries to harvest and steal WLAN passwords 10->136 18 yA3fyKAcpi.exe 15 116 10->18         started        23 powershell.exe 15 10->23         started        138 PowerShell case anomaly found 14->138 signatures5 process6 dnsIp7 92 220.240.8.0.in-addr.arpa 18->92 94 api.telegram.org 149.154.167.220, 443, 49730, 49731 TELEGRAMRU United Kingdom 18->94 96 4 other IPs or domains 18->96 78 C:\Users\user\AppData\...\SQSJKEBWDT.pdf, ASCII 18->78 dropped 80 C:\Users\user\AppData\...\BJZFPPWAPT.jpg, ASCII 18->80 dropped 82 C:\Users\user\AppData\...\BNAGMGSPLO.docx, ASCII 18->82 dropped 112 Protects its processes via BreakOnTermination flag 18->112 114 Tries to harvest and steal WLAN passwords 18->114 116 Modifies existing user documents (likely ransomware behavior) 18->116 25 cmd.exe 1 18->25         started        27 cmd.exe 1 18->27         started        30 schtasks.exe 1 18->30         started        118 Drops PE files to the startup folder 23->118 120 Powershell drops PE file 23->120 32 conhost.exe 23->32         started        file8 signatures9 process10 signatures11 34 yA3fyKAcpi.exe 25->34         started        39 powershell.exe 25->39         started        41 conhost.exe 25->41         started        53 2 other processes 25->53 140 Uses netsh to modify the Windows network and firewall settings 27->140 142 Tries to harvest and steal WLAN passwords 27->142 144 PowerShell case anomaly found 27->144 43 netsh.exe 3 27->43         started        45 conhost.exe 27->45         started        47 findstr.exe 1 27->47         started        49 chcp.com 1 27->49         started        51 conhost.exe 30->51         started        process12 dnsIp13 98 220.240.8.0.in-addr.arpa 34->98 100 icanhazip.com 34->100 102 2 other IPs or domains 34->102 84 C:\Users\user\AppData\...\PIVFAGEAAV.docx, ASCII 34->84 dropped 86 C:\Users\user\AppData\...\DUUDTUBZFW.png, ASCII 34->86 dropped 122 Tries to harvest and steal browser information (history, passwords, etc) 34->122 124 Tries to harvest and steal WLAN passwords 34->124 126 Modifies existing user documents (likely ransomware behavior) 34->126 55 cmd.exe 34->55         started        58 cmd.exe 34->58         started        88 C:\Users\user\AppData\Roaming\...\%Namee%, PE32 39->88 dropped 60 conhost.exe 39->60         started        62 conhost.exe 41->62         started        file14 signatures15 process16 signatures17 128 Tries to harvest and steal WLAN passwords 55->128 64 conhost.exe 55->64         started        66 chcp.com 55->66         started        68 netsh.exe 55->68         started        70 findstr.exe 55->70         started        72 conhost.exe 58->72         started        74 chcp.com 58->74         started        76 netsh.exe 58->76         started        process18
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-07-01 19:49:29 UTC
AV detection:
14 of 29 (48.28%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6ea6uqwwh3gdyxcw3mnww2iigse33ekmz35uspz5yjcapqy5vbqa._file
Verdict:
malicious
Label(s):
masslogger
Create hunting rule
Similar samples:
40afa1e323be151d0d7a38c72f771b0b9e909f49ddade942d4260a5e29e5ec2f
AsyncRAT
5389a958986f6ceccaa9e44006852becbccabfb07f126d69e6b031227fb0b487
AsyncRAT
Result
Malware family:
stormkitty
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:stormkitty rat spyware stealer
Link:
https://tria.ge/reports/210705-5gdfsvlsha/
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Drops desktop.ini file(s)
Looks up external IP address via web service
Looks up geolocation information via web service
Drops startup file
Reads user/profile data of web browsers
Async RAT payload
AsyncRat
StormKitty
StormKitty Payload
Unpacked files
SH256 hash:
3fe966e21625f83eccdcc49762305a16e6c488397b4e08a98e1be48d93c3a571
MD5 hash:
884c22791622cbd6edc8ad0dfcea87f2
SHA1 hash:
8b2b539c86f49597a05a289fda4ac27b2fd1c177
Link:
https://www.unpac.me/results/57accf87-593a-47a3-87d2-7ad473145213/
Parent samples :
fb50faa852bc2917ace3552b02c754c91872d0892e247f51a1e48336e598d6ef
6f97024532dc240921683a3769cb317aefc60bf89c8916b01e80a804675f7487
8e36d4f98a882487bedbedf73cbb010f793c7bb529d133a58673a14850198f9f
SH256 hash:
04062c48fef55cf66e33ebde2e4c5dd29416527240d733d99b15930a3307b545
MD5 hash:
a0c859786ae4e04669db9f355e2ac696
SHA1 hash:
234ddf85dc99447b9514399e78bacd00dad52f6a
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/57accf87-593a-47a3-87d2-7ad473145213/
SH256 hash:
d2f8db0237088781621a332792bd33382a26b8adeb3aaec7163abb41da779636
MD5 hash:
966457a3f900710184b3ac6e03276b72
SHA1 hash:
c299bf1e0e607106fa232c19c7a1be283c8c844e
Link:
https://www.unpac.me/results/57accf87-593a-47a3-87d2-7ad473145213/
SH256 hash:
f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860
MD5 hash:
a80e72c6e6b9521eefb526311db84119
SHA1 hash:
d3e09c1b5ca8fab9226337046f551d99d0b0bb70
Link:
https://www.unpac.me/results/57accf87-593a-47a3-87d2-7ad473145213/
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/f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860

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:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:INDICATOR_SUSPICIOUS_EXE_RawGitHub_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables containing URLs to raw contents of a Github gist
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_CryptoWallets
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many cryptocurrency mining wallets or apps. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Author:ditekSHen
Description:Detects binaries and memory artifcats referencing sandbox DLLs typically observed in sandbox evasion
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
Rule name:Keylog_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Contains Keylog
Rule name:MALWARE_Win_StormKitty
Create hunting rule
Author:ditekSHen
Description:Detects StormKitty infostealer
Rule name:pe_imphash
Create hunting rule
Rule name:Reverse_text_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Reverse text detected
Rule name:Select_from_enumeration
Create hunting rule
Author:James_inthe_box
Description:IP and port combo
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Stealer_word_in_memory
Create hunting rule
Author:James_inthe_box
Description:The actual word stealer in memory
Rule name:Steam_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Steam in files like avemaria
Rule name:Telegram_bot_mem
Create hunting rule
Author:James_inthe_box
Description:Telegram in files like avemaria
Rule name:Telegram_Exfiltration_Via_Api
Create hunting rule
Author:lsepaolo
Rule name:Telegram_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Telegram in files like avemaria
Rule name:win_asyncrat_j1
Create hunting rule
Author:Johannes Bader @viql
Description:detects AsyncRAT
Rule name:win_asyncrat_w0
Create hunting rule
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 f101ea42d63ecc3c5c56db1b6b69083489bd914ccefb493f3dc24407c31da860

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1427680/
Cape
Cape
https://www.capesandbox.com/analysis/169702/

Comments


Avatar
zbet commented on 2021-07-05 07:12:07 UTC

url : hxxp://mmetalshopp.000webhostapp.com/wwww.exe