MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 47767c3479978a5ff02ff13b83076944f3b88c328b4446bceb601b7e48c3df86. 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: 13


Intelligence 13 IOCs 1 YARA 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 47767c3479978a5ff02ff13b83076944f3b88c328b4446bceb601b7e48c3df86
SHA3-384 hash: c503d80edd62d74b0b50936d7fe3fb75aaa52ea8a9e5916349d9e2580c8ef14c47acd8b10d867ef31a4b4105b44d05ac
SHA1 hash: 5bb687097f52f94dba588ff0c5b3655cb13b8751
MD5 hash: a5c0f36c4331997df3e857109071e0ba
humanhash: fanta-romeo-saturn-eighteen
File name:purchaselist.pdf.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:236'032 bytes
First seen:2022-06-13 02:31:29 UTC
Last seen:Never
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:wbiIi1N2XPGvwqLJdh59Yrb7VIRyecjSyKYeQve13T:wbygYDc9dK
TLSH T16E344293E58869D9EC3E37F260273E7617666E7FBD345479216DF0120E73283026AC1A
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 332b371736363303 (3 x AgentTesla, 2 x AsyncRAT, 1 x SnakeKeylogger)
Reporter abuse_ch
Tags:AsyncRAT exe RAT


Avatar
abuse_ch
AsyncRAT C2:
193.233.185.161:8808

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
193.233.185.161:8808 https://threatfox.abuse.ch/ioc/696776/

Intelligence

File Origin
# of uploads :
1
# of downloads :
335
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
purchaselist.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-06-13 02:34:13 UTC
Tags:
asyncrat
Link:
https://app.any.run/tasks/18aa85a1-833c-4e45-82b5-1f82fefbe526

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/279147/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Running batch commands
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62a6a1a4040517c34794ce9e/reports/cd780f6d-2192-4b89-8168-878bfa47155c/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/0d82ea91-88e2-4edd-b93d-84962cabc356
Result
Threat name:
AsyncRAT
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1011692
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
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)
Uses dynamic DNS services
Yara detected AsyncRAT
Yara detected Costura Assembly Loader
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 644188 Sample: purchaselist.pdf.exe Startdate: 13/06/2022 Architecture: WINDOWS Score: 100 62 bigman2021.duckdns.org 2->62 68 Malicious sample detected (through community Yara rule) 2->68 70 Multi AV Scanner detection for submitted file 2->70 72 Yara detected MSILDownloaderGeneric 2->72 74 9 other signatures 2->74 8 purchaselist.pdf.exe 16 7 2->8         started        12 Kelmapjf.exe 3 2->12         started        15 Kelmapjf.exe 14 4 2->15         started        signatures3 process4 dnsIp5 64 cdn.discordapp.com 162.159.135.233, 443, 49756, 49861 CLOUDFLARENETUS United States 8->64 54 C:\Users\user\AppData\...\Kelmapjf.exe, PE32 8->54 dropped 56 C:\Users\...\Kelmapjf.exe:Zone.Identifier, ASCII 8->56 dropped 58 C:\Users\user\...\purchaselist.pdf.exe.log, ASCII 8->58 dropped 17 InstallUtil.exe 2 8->17         started        20 cmd.exe 1 8->20         started        22 powershell.exe 18 8->22         started        66 162.159.129.233, 443, 49863 CLOUDFLARENETUS United States 12->66 76 Sample uses process hollowing technique 12->76 24 cmd.exe 12->24         started        26 powershell.exe 12->26         started        34 2 other processes 12->34 78 Multi AV Scanner detection for dropped file 15->78 28 cmd.exe 15->28         started        30 powershell.exe 15->30         started        32 InstallUtil.exe 15->32         started        file6 signatures7 process8 dnsIp9 60 bigman2021.duckdns.org 193.233.185.161, 49792, 49804, 49847 REDCOM-ASRedcomKhabarovskRussiaRU Russian Federation 17->60 36 conhost.exe 20->36         started        38 timeout.exe 1 20->38         started        40 conhost.exe 22->40         started        42 conhost.exe 24->42         started        44 timeout.exe 24->44         started        46 conhost.exe 26->46         started        48 conhost.exe 28->48         started        50 timeout.exe 28->50         started        52 conhost.exe 30->52         started        process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/47767c3479978a5ff02ff13b83076944f3b88c328b4446bceb601b7e48c3df86/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-06-13 02:12:53 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
19 of 26 (73.08%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=i53hyndzs6ff74bp6e5ygb3jitz3rdbsrncenphlmanx4sgd36da._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
masslogger
Create hunting rule
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:default persistence rat
Link:
https://tria.ge/reports/220613-cz94badcgn/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Async RAT payload
AsyncRat
Malware Config
C2 Extraction:
bigman2021.duckdns.org:6606
bigman2021.duckdns.org:7707
bigman2021.duckdns.org:8808
Unpacked files
SH256 hash:
47767c3479978a5ff02ff13b83076944f3b88c328b4446bceb601b7e48c3df86
MD5 hash:
a5c0f36c4331997df3e857109071e0ba
SHA1 hash:
5bb687097f52f94dba588ff0c5b3655cb13b8751
Link:
https://www.unpac.me/results/61d15b6f-29df-49e9-a8cf-0230556bb50d/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/47767c347997/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/47767c3479978a5ff02ff13b83076944f3b88c328b4446bceb601b7e48c3df86

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:INDICATOR_SUSPICIOUS_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_Discord_Attachments_URL
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a PE file that contains an Discord Attachments URL. This is often used by Malware to download further payloads
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_PE_Discord_Attachment_Oct21_1
Create hunting rule
Author:Florian Roth
Description:Detects suspicious executable with reference to a Discord attachment (often used for malware hosting on a legitimate FQDN)
Reference:Internal Research
Rule name:SUSP_Reverse_Run_Key
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects a Reversed Run Key
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.

Cape
Cape
https://www.capesandbox.com/analysis/279147/

Comments