MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092. 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 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092
SHA3-384 hash: a70d36a0eeda48b1962a3da6684bd63b0e3c460a8c16bffd95e79ed141bdec006d5b93cd1ee67646b2f97c21a4365a8e
SHA1 hash: a43016fa816afd1693fb7f266dd032fd7f061c35
MD5 hash: 9fd45110bad75cda6de67232014aeb6e
humanhash: twenty-alanine-jersey-hotel
File name:RFQ_GGMC-Ref 12-01-2022.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:567'808 bytes
First seen:2022-01-12 07:57:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:3v5+Ky22SH/s6TYnPEvvslosxkhoNB3Ps7hZJ:/029/enPEHkowNB/S
TLSH T150C4E10177FC8A02D27A6AB9C8FB50140BB97957A972CB8D2DCD32CD49B1B914D41B8F
File icon (PE):PE icon
dhash icon 00e6d0e74ecbcd23 (4 x Formbook, 4 x AgentTesla, 2 x Loki)
Reporter cocaman
Tags:AsyncRAT exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ_GGMC-Ref 12-01-2022.exe
Verdict:
Malicious activity
Analysis date:
2022-01-12 08:00:18 UTC
Tags:
trojan rat asyncrat
Link:
https://app.any.run/tasks/050affcb-e220-4c2e-8ff1-69ebaa734fc2

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/218582/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Сreating synchronization primitives
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Creating a file
Running batch commands
Enabling autorun by creating a file
Gathering data
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5980b8aa-6432-487d-b028-8fa0ec47536c
Result
Threat name:
AgentTesla AsyncRAT Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/918993
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Bypasses PowerShell execution policy
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: Suspicius Add Task From User AppData Temp
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Suspicious powershell command line found
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 AgentTesla
Yara detected AntiVM3
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Nanocore RAT
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 551470 Sample: RFQ_GGMC-Ref 12-01-2022.exe Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 61 89.238.150.43, 49720, 49722, 49723 M247GB United Kingdom 2->61 63 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Multi AV Scanner detection for submitted file 2->67 69 14 other signatures 2->69 10 RFQ_GGMC-Ref 12-01-2022.exe 7 2->10         started        14 mozille.exe 2->14         started        signatures3 process4 file5 55 C:\Users\user\AppData\...\lhWbLvHNlciwu.exe, PE32 10->55 dropped 57 C:\Users\user\AppData\Local\...\tmp71CD.tmp, XML 10->57 dropped 59 C:\Users\...\RFQ_GGMC-Ref 12-01-2022.exe.log, ASCII 10->59 dropped 71 Adds a directory exclusion to Windows Defender 10->71 16 RFQ_GGMC-Ref 12-01-2022.exe 6 10->16         started        19 powershell.exe 19 10->19         started        21 schtasks.exe 1 10->21         started        23 RFQ_GGMC-Ref 12-01-2022.exe 10->23         started        25 powershell.exe 14->25         started        27 schtasks.exe 14->27         started        signatures6 process7 file8 53 C:\Users\user\AppData\Local\...\mozille.exe, PE32 16->53 dropped 29 cmd.exe 1 16->29         started        32 cmd.exe 1 16->32         started        34 conhost.exe 19->34         started        36 conhost.exe 21->36         started        38 conhost.exe 25->38         started        process9 signatures10 75 Suspicious powershell command line found 29->75 77 Bypasses PowerShell execution policy 29->77 40 conhost.exe 29->40         started        42 schtasks.exe 1 29->42         started        44 mozille.exe 32->44         started        47 conhost.exe 32->47         started        49 timeout.exe 32->49         started        process11 signatures12 73 Adds a directory exclusion to Windows Defender 44->73 51 powershell.exe 44->51         started        process13
Detection:
asyncrat
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 07:58:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
23 of 28 (82.14%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wwdmvfn2svl7pljegtib7fx7denxovawoceu345xrkr2qmjk4cja._file
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default rat spyware stealer suricata
Link:
https://tria.ge/reports/220112-jtt88sbger/
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
Suspicious use of SetThreadContext
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Async RAT payload
AsyncRat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
Malware Config
C2 Extraction:
89.238.150.43:5512
Unpacked files
SH256 hash:
ae54ca5c5f330220986366c2a85a75a3260698660e8681d7049e252380666b92
MD5 hash:
00af6b56440b6f9eb5b8a3143f516067
SHA1 hash:
c70442ef1fe58c11429d30cffd2d464ba6d73d40
Link:
https://www.unpac.me/results/bdc0880d-be45-4dc0-bf14-781da2707201/
SH256 hash:
558898772f19dae7cef455f8ee36b40fa34e1af5b4de54b869e43a499f8d7c2c
MD5 hash:
237dd934ec49dc6371260dfd074341fd
SHA1 hash:
917d992fb612e3ec3b59cbcf4d0bf483f97e0d83
Detections:
win_asyncrat_w0
Create hunting rule
Link:
https://www.unpac.me/results/bdc0880d-be45-4dc0-bf14-781da2707201/
Parent samples :
0d7e87634d90e0042e752f4f9e03446a060469605aa0f0dd059f52f71d16a1cd
7b6394aea669466dccc9fdb61c99a3952e936be30a9187da8198f88974e5cae6
b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092
SH256 hash:
e61eae2870fac815f72d72e661699d31e12506d976295ec3079fbf9a0ea891e4
MD5 hash:
7dd0f2c822611a1b948512dec46a7971
SHA1 hash:
51939c8eb684b901548f7dc4dc5dbee0ce9f359a
Link:
https://www.unpac.me/results/bdc0880d-be45-4dc0-bf14-781da2707201/
SH256 hash:
fffbaf3e458f7d94cc301b2eaa6a8c3544d4b49fb899319cedcf2684134d1139
MD5 hash:
dc67f773517c03cb9465c98812c80d5b
SHA1 hash:
0fe7f0bcd81ac81d004cab75910c625e17e3dc36
Link:
https://www.unpac.me/results/bdc0880d-be45-4dc0-bf14-781da2707201/
SH256 hash:
b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092
MD5 hash:
9fd45110bad75cda6de67232014aeb6e
SHA1 hash:
a43016fa816afd1693fb7f266dd032fd7f061c35
Link:
https://www.unpac.me/results/bdc0880d-be45-4dc0-bf14-781da2707201/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b586ca95ba95/report/overview.html
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/b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092

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.

Malspam

AsyncRAT

rar e70dc8dc82bef4ec25a1f74be051c6d59c7a6bafae10132bb4599950b005e8f6

AsyncRAT

Executable exe b586ca95ba9557f7ad2434d01f96ff191b77541670894df3b78aa3a8312ae092

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 e70dc8dc82bef4ec25a1f74be051c6d59c7a6bafae10132bb4599950b005e8f6
Cape
Cape
https://www.capesandbox.com/analysis/218582/

Comments