MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0. 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: 17


Intelligence 17 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0
SHA3-384 hash: 77fe7b4d32b4a183cdf4ea50470eea0265c30862a375dfbcae3c67896fcda605180bfd6482fdf722ff61cf247bb76f5b
SHA1 hash: ecedff7a0bdcf290830712ca7599b3c92f4a8bbd
MD5 hash: 6dcafb48fe7ce41935fe5f3553d6ffbc
humanhash: mountain-mockingbird-west-pennsylvania
File name:Pago3292023.scr.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:560'096 bytes
First seen:2023-03-29 07:25:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 00be6e6c4f9e287672c8301b72bdabf3 (116 x RedLineStealer, 70 x AsyncRAT, 55 x AgentTesla)
ssdeep 12288:NcrNS33L10QdrXjzDnwvSljOWqRlPPZxOgo3uesCQ+Q:wNA3R5drX3Dwv+avRlTOUesCK
TLSH T197C4E152F7D584B2E6732A369939B714697DBD201E34CA1FB3D43D6C8A31181A231BB3
TrID 89.0% (.EXE) WinRAR Self Extracting archive (4.x-5.x) (265042/9/39)
3.5% (.EXE) Win64 Executable (generic) (10523/12/4)
2.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
1.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
1.5% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0202000202000000 (2 x AsyncRAT, 1 x Loki)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
185.254.37.238:1432

Intelligence

File Origin
# of uploads :
1
# of downloads :
277
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
Pago3292023.scr.exe
Verdict:
Malicious activity
Analysis date:
2023-03-29 07:28:05 UTC
Tags:
asyncrat trojan rat
Link:
https://app.any.run/tasks/0fe52d25-d84d-4d3c-b3ae-9925165835dc

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/378398/
Detection(s):
SecuriteInfo.com.Troj.NanoCo_TZ.22029.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file in the %temp% directory
Launching a process
Launching a service
Creating a file
Changing a file
Delayed writing of the file
Running batch commands
Creating a process from a recently created file
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/75569/overview
Behaviour
MalwareBazaar
MeasuringTime
EvasionQueryPerformanceCounter
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware overlay packed setupapi.dll shdocvw.dll shell32.dll
Link:
https://www.filescan.io/uploads/6423e80cdaef81576d44c141/reports/30237852-563b-4d42-9b17-c1759c182e7d/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0
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/579bb634-5f6e-45ba-be3f-63228de30638
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1204090
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Machine Learning detection for dropped file
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
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
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 837006 Sample: Pago3292023.scr.exe Startdate: 29/03/2023 Architecture: WINDOWS Score: 100 69 Multi AV Scanner detection for domain / URL 2->69 71 Malicious sample detected (through community Yara rule) 2->71 73 Multi AV Scanner detection for submitted file 2->73 75 6 other signatures 2->75 13 Pago3292023.scr.exe 10 2->13         started        16 crssi.exe 1 2->16         started        process3 file4 59 C:\Users\user\AppData\...\jdgsdg.sfx.exe, PE32 13->59 dropped 19 cmd.exe 1 13->19         started        63 Antivirus detection for dropped file 16->63 65 Machine Learning detection for dropped file 16->65 67 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 16->67 22 crssi.exe 2 16->22         started        signatures5 process6 dnsIp7 77 Uses schtasks.exe or at.exe to add and modify task schedules 19->77 25 jdgsdg.sfx.exe 8 19->25         started        29 conhost.exe 19->29         started        61 mooroopecamroy.sytes.net 185.254.37.238, 1432, 1452, 49696 NETERRA-ASBG Germany 22->61 signatures8 process9 file10 57 C:\Users\user\AppData\Local\Temp\jdgsdg.exe, PE32 25->57 dropped 79 Multi AV Scanner detection for dropped file 25->79 31 jdgsdg.exe 1 25->31         started        signatures11 process12 signatures13 81 Antivirus detection for dropped file 31->81 83 Multi AV Scanner detection for dropped file 31->83 85 Machine Learning detection for dropped file 31->85 34 jdgsdg.exe 6 31->34         started        process14 file15 55 C:\Users\user\AppData\Roaming\crssi.exe, PE32 34->55 dropped 37 cmd.exe 1 34->37         started        39 cmd.exe 1 34->39         started        process16 process17 41 crssi.exe 37->41         started        43 conhost.exe 37->43         started        45 timeout.exe 1 37->45         started        47 conhost.exe 39->47         started        49 schtasks.exe 1 39->49         started        process18 51 crssi.exe 41->51         started        process19 53 WerFault.exe 51->53         started       
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0/
Threat name:
Win32.Backdoor.AsyncRAT
Create hunting rule
Status:
Malicious
First seen:
2023-03-29 07:24:28 UTC
File Type:
PE (Exe)
Extracted files:
19
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd4rzmuqnseq4wcchzi4tnngh7ujjbti26qj5cjav3c66yudjoqa._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:mnock rat
Link:
https://tria.ge/reports/230329-h9h1gagh6t/
Behaviour
Creates scheduled task(s)
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
mooroopecamroy.sytes.net:1452
mooroopecamroy.sytes.net:1432
Unpacked files
SH256 hash:
728dff652b72bcd5ef90d2433ec097c7d819c9f2c1c822c14f47ea036349df49
MD5 hash:
0e1ed5404df452a66a2fcdb0306b5cc2
SHA1 hash:
ab1a84f2c47ed70ff38d19e8cba421a4c980a424
Link:
https://www.unpac.me/results/02a103f2-2850-45a5-8931-1aa1c9a2c30c/
SH256 hash:
f95dd350a5fd169d87d5ab8078f8c475ca4009c78b6056ebfc44222a1a0bd48f
MD5 hash:
38343f4c8d8dc1fddce0c348ea866b56
SHA1 hash:
793cb93af3708da3b45e2d7d3206c6a7c94bd2d7
Detections:
AsyncRAT
Create hunting rule
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/02a103f2-2850-45a5-8931-1aa1c9a2c30c/
Parent samples :
044cacd5ac37289f51cb2560deec5d5eb2a299f37cc7632673fefc70196e5452
1c0a8ab60132cd737b83b2c9b502dfb2d5e3cf14174cc84e422ca1d19277202b
7158cb26fb5a843496b92e30c4366fdfa2b49cd8c59f280ee71e853a68ef0a69
a68850f869d5a33aeedeb894e6ab9c743d35be9da971dea04361664fc00cca18
b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0
ef6a185793a6d6b430ef1a15e01550221919075c5693c80fcea76651e250a14f
94530ce58a289fbba223ab50512183f2dc1003ab227b144d6ec21c15cc427cce
50780178c6e35fc1107aa6aacb09c6d1a46d2200f909a95836c88cb7c3651c0e
9d5972659a12d93f0d7b05042c552e47be07967eff52d61f5ea06e5734f9d6bc
494e1115bfbb0cadf7ac1e0e3d5813c36c0e2e829f8246a7856b34e9b2d100de
SH256 hash:
b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0
MD5 hash:
6dcafb48fe7ce41935fe5f3553d6ffbc
SHA1 hash:
ecedff7a0bdcf290830712ca7599b3c92f4a8bbd
Detections:
win_xorist_auto
Create hunting rule
Link:
https://www.unpac.me/results/02a103f2-2850-45a5-8931-1aa1c9a2c30c/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8f91cb2906c/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/b8f91cb2906c890e58423e51c9b5a63fe8948668d7a09e8920aec5ef62834ba0

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:kevoreilly, JPCERT/CC Incident Response Group
Description:AsyncRat Payload
Rule name:INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
Author:ditekSHen
Description:Detects file containing reversed ASEP Autorun registry keys
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MAL_AsnycRAT
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:MAL_AsyncRAT_Config_Decryption
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects AsnycRAT based on it's config decryption routine
Rule name:msil_suspicious_use_of_strreverse
Create hunting rule
Author:dr4k0nia
Description:Detects mixed use of Microsoft.CSharp and VisualBasic to use StrReverse
Rule name:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
Create hunting rule
Rule name:sfx_pdb
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:sfx_pdb_winrar_restrict
Create hunting rule
Author:@razvialex
Description:Detect interesting files containing sfx with pdb paths.
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
Rule name:Windows_Trojan_Asyncrat_11a11ba1
Create hunting rule
Author:Elastic Security
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
Rule name:win_xorist_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.xorist.
Rule name:XWorm_Hunter
Create hunting rule
Author:Potato

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/378398/

Comments