MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060. 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: 8


Intelligence 8 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060
SHA3-384 hash: ad954194d25f0f6089993be33efebad29f116ac771d561c07547f57c328908ece3ae9e0b06243db078eabe7878d3ec4a
SHA1 hash: ec6628c910d0d152cac4c3e421ce0181cf62ebf4
MD5 hash: dfbffb0059e6ef405d04734f9706ab73
humanhash: failed-pasta-thirteen-pizza
File name:payment.scr
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:166'840 bytes
First seen:2021-10-26 21:17:04 UTC
Last seen:2021-10-26 22:19:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:0/mywJnjUU2oWFkefMzTjSMzTjoIe1UhA/:0O/jU1oIb
Threatray 7'105 similar samples on MalwareBazaar
TLSH T175F3082117E84A19F0BFAB7655B141001FF6F4C29727C72DA890649E0EA67C28F7B367
Reporter GovCERT_CH
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
325
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/200346/
Detection(s):
SecuriteInfo.com.Trojan.Win32.Save.a.5469.17174.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed packed
Link:
https://www.filescan.io/uploads/6178708ddb358dd15eddaad4/reports/d0a63f1c-f58e-4333-b87d-7d0d35820462/overview
Result
Verdict:
SUSPICIOUS
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/05ee63b8-f704-4c46-8d3f-941489685772
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/877378
Signature
Adds a directory exclusion to Windows Defender
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
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 AntiVM3
Yara detected AsyncRAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 509811 Sample: payment.scr Startdate: 26/10/2021 Architecture: WINDOWS Score: 100 80 Found malware configuration 2->80 82 Yara detected UAC Bypass using CMSTP 2->82 84 Yara detected AntiVM3 2->84 86 5 other signatures 2->86 9 payment.exe 21 10 2->9         started        14 sddsdsdsd.exe 14 7 2->14         started        process3 dnsIp4 68 cdn.discordapp.com 162.159.134.233, 443, 49733 CLOUDFLARENETUS United States 9->68 58 C:\Users\user\AppData\Roaming\sddsdsdsd.exe, PE32 9->58 dropped 60 C:\Users\user\AppData\...\payment.exe.log, ASCII 9->60 dropped 62 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 9->62 dropped 90 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->90 92 Adds a directory exclusion to Windows Defender 9->92 16 cmd.exe 1 9->16         started        18 cmd.exe 1 9->18         started        21 powershell.exe 21 9->21         started        23 AdvancedRun.exe 1 9->23         started        70 162.159.135.233, 443, 49761 CLOUDFLARENETUS United States 14->70 64 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 14->64 dropped 25 AdvancedRun.exe 14->25         started        27 powershell.exe 14->27         started        file5 signatures6 process7 signatures8 29 sddsdsdsd.exe 16->29         started        34 conhost.exe 16->34         started        36 timeout.exe 1 16->36         started        88 Uses schtasks.exe or at.exe to add and modify task schedules 18->88 38 conhost.exe 18->38         started        40 schtasks.exe 1 18->40         started        42 conhost.exe 21->42         started        44 AdvancedRun.exe 23->44         started        46 AdvancedRun.exe 25->46         started        48 conhost.exe 27->48         started        process9 dnsIp10 72 96.9.210.115, 4449, 49801 NEWMEDIAEXPRESS-AS-APNewMediaExpressPteLtdSG United States 29->72 74 162.159.130.233, 443, 49762 CLOUDFLARENETUS United States 29->74 76 cdn.discordapp.com 29->76 66 C:\Users\user\AppData\...\AdvancedRun.exe, PE32 29->66 dropped 94 Adds a directory exclusion to Windows Defender 29->94 50 AdvancedRun.exe 29->50         started        52 powershell.exe 29->52         started        78 192.168.2.1 unknown unknown 46->78 file11 signatures12 process13 process14 54 AdvancedRun.exe 50->54         started        56 conhost.exe 52->56         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060/
Threat name:
ByteCode-MSIL.Backdoor.Crysan
Create hunting rule
Status:
Malicious
First seen:
2021-10-26 21:18:05 UTC
AV detection:
13 of 28 (46.43%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6oheqhbyf6w5fjfawmbufsiptu5rsrkrcce5rkkgfcr2sinfgbqa._file
Verdict:
unknown
Similar samples:
173240b443fdb5cc7ed97cf6eedeb0d823924df3dab6d468c9da2898443f3ac6
AsyncRAT
2793bbaba9d12a4a740b6c957143367ce1fb13bb98ecb122e2cb41728bed525e
AsyncRAT
2fbf6c5454bb88073ecbc13b293375ec58a9f8636c188881ffd7a3573f3c1cac
AsyncRAT
596e82d24c64a373095159ee769df582d6f34fde24eb537aca442d8f01c491db
AsyncRAT
5d91391caa4520c281f6b5cab65914417fed0445d836067c7f70c77795417af6
AsyncRAT
69fac4fe77b6da550498724f01e6db66d5c18a19c185d824bf62afdaccb0a7d6
AsyncRAT
721bf1dd5787108ecf31dd3bbab5e355ca55bdc68eb2358ce891290a7ce2048c
AsyncRAT
786b9cb2fa5e78e4bc0d9e67e6f90c0229b150bacfd3e75cf46a9c3a67d57a67
AsyncRAT
8f71fca5621ccb7ba3558cfebc17014d27923d1c73ad97ececb577fd5b937047
AsyncRAT
8fa3eaa46c7d8d1f44a2eeca895f802f2aa7a2251bab347ccb765c72d63ccb58
AsyncRAT
+ 7'095 additional samples on MalwareBazaar
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:venom clients evasion rat trojan
Link:
https://tria.ge/reports/211026-z5ln8sach7/
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
Maps connected drives based on registry
Checks BIOS information in registry
Loads dropped DLL
Windows security modification
Executes dropped EXE
Looks for VMWare Tools registry key
Async RAT payload
Looks for VirtualBox Guest Additions in registry
Nirsoft
AsyncRat
Modifies Windows Defender Real-time Protection settings
Turns off Windows Defender SpyNet reporting
Windows security bypass
Malware Config
C2 Extraction:
96.9.210.115:4449
96.9.210.115:0147
Unpacked files
SH256 hash:
b8b16b0cb1c8b9b082e0e995c14ec3367df3492da236d694c20b0fceadac4917
MD5 hash:
ab0da0b91e362cbfe36bfb2da926fc9b
SHA1 hash:
ae2e4872ca3930760456830942d4d8cd876bf16a
Link:
https://www.unpac.me/results/396e85db-9e26-4f66-bdf2-f1d74913db1b/
SH256 hash:
f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060
MD5 hash:
dfbffb0059e6ef405d04734f9706ab73
SHA1 hash:
ec6628c910d0d152cac4c3e421ce0181cf62ebf4
Link:
https://www.unpac.me/results/396e85db-9e26-4f66-bdf2-f1d74913db1b/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
Rule name:pe_imphash
Create hunting rule
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.

Malspam

AsyncRAT

Executable exe f38e481c382fadd2a4a0b30342c90f9d3b1945511089d8a94628a3a921a53060

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/200346/

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