MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1. 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: 15


Intelligence 15 IOCs YARA 22 File information Comments
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SHA256 hash: 430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1
SHA3-384 hash: b3ba13436629035e1f22580653ed5ee2e3db3d2e6c31ea4dbd1499585988287afbe352638e358bc4a02e82a9cc0488b3
SHA1 hash: 0e13ed377b15349ddef95c6eed281b46a50bbb5f
MD5 hash: c9a81dcabe30d055caca7db9affe0248
humanhash: zebra-nuts-eighteen-one
File name:ws.exe
Download: download sample
Signature AsyncRAT
Create hunting rule
File size:3'118'913 bytes
First seen:2023-01-16 16:53:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 4328f7206db519cd4e82283211d98e83 (533 x RedLineStealer, 18 x Arechclient2, 15 x DCRat)
ssdeep 49152:ug2G6sHJRXRTV7PH/4lrezRSmI4/6SWOyg5eO09rAq3h7twjklRUsd8OLWB7C7Rq:WG6sZVjVRSmI4eg5ebrV35ijsdLWBERq
TLSH T166E533A571DA0232DFD329FB1F18C2D9B300E238B1D221FD7596227766943DD669E0B8
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4505/5/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter pr0xylife
Tags:AsyncRAT exe StormKitty

Intelligence

File Origin
# of uploads :
1
# of downloads :
260
Origin country :
IE IE
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
ws.exe
Verdict:
Malicious activity
Analysis date:
2023-01-16 16:55:24 UTC
Tags:
stealerium asyncrat stealer evasion
Link:
https://app.any.run/tasks/bf478343-3923-45f1-95e8-291234a3496a

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/353487/
Detection(s):
SecuriteInfo.com.Variant.Bulz.198954.23794.13854.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file
Reading critical registry keys
Creating a file in the %temp% directory
Creating a window
Running batch commands
Launching a process
Launching the process to change network settings
Сreating synchronization primitives
Stealing user critical data
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63c5812dbda854045c18c2c1/reports/7cee21ad-0bfd-42ff-b6ea-228b695095cb/overview
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.
Malware family:
Stealerium Stealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/23a63791-7aa1-4fd2-8e92-9762d08b7d77
Result
Threat name:
AsyncRAT, StormKitty
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1152528
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Connects to a pastebin service (likely for C&C)
Detected unpacking (changes PE section rights)
Found many strings related to Crypto-Wallets (likely being stolen)
Hides threads from debuggers
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Modifies existing user documents (likely ransomware behavior)
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Sigma detected: Capture Wi-Fi password
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect sandboxes and other dynamic analysis tools (window names)
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 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: 785260 Sample: ws.exe Startdate: 16/01/2023 Architecture: WINDOWS Score: 100 45 Malicious sample detected (through community Yara rule) 2->45 47 Antivirus detection for URL or domain 2->47 49 Antivirus / Scanner detection for submitted sample 2->49 51 11 other signatures 2->51 7 ws.exe 15 171 2->7         started        process3 dnsIp4 39 9.96.11.0.in-addr.arpa 7->39 41 api.telegram.org 149.154.167.220, 443, 49699, 49700 TELEGRAMRU United Kingdom 7->41 43 4 other IPs or domains 7->43 31 C:\Users\user\AppData\...\BWDRWEEARI.jpg, ASCII 7->31 dropped 33 C:\Users\user\AppData\...\VWDFPKGDUF.xlsx, ASCII 7->33 dropped 35 C:\Users\user\AppData\...\VWDFPKGDUF.jpg, ASCII 7->35 dropped 37 2 other malicious files 7->37 dropped 53 Detected unpacking (changes PE section rights) 7->53 55 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->55 57 Query firmware table information (likely to detect VMs) 7->57 59 8 other signatures 7->59 12 cmd.exe 1 7->12         started        15 cmd.exe 1 7->15         started        file5 signatures6 process7 signatures8 61 Uses netsh to modify the Windows network and firewall settings 12->61 63 Tries to harvest and steal WLAN passwords 12->63 17 netsh.exe 3 12->17         started        19 conhost.exe 12->19         started        21 findstr.exe 1 12->21         started        23 chcp.com 1 12->23         started        25 netsh.exe 3 15->25         started        27 conhost.exe 15->27         started        29 chcp.com 1 15->29         started        process9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1/
Threat name:
Win32.Trojan.Cerbu
Create hunting rule
Status:
Malicious
First seen:
2023-01-16 16:54:13 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=imgykx6hqmjt2lk3yaoasw5p67mlifva67avvcszfcfjn7hopkqq._file
Verdict:
malicious
Result
Malware family:
stormkitty
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat family:stormkitty botnet:default evasion rat spyware stealer themida trojan
Link:
https://tria.ge/reports/230116-vejpqsaa96/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks whether UAC is enabled
Drops desktop.ini file(s)
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Looks up geolocation information via web service
Checks BIOS information in registry
Reads user/profile data of web browsers
Themida packer
Async RAT payload
Identifies VirtualBox via ACPI registry values (likely anti-VM)
AsyncRat
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
127.0.0.1:6606
127.0.0.1:7707
127.0.0.1:8808
https://api.telegram.org/bot5980420064:AAHGrlOU2WsgF90Pcyz-L7wrGgC_Cj54k4Q/sendMessage?chat_id=806259874
Unpacked files
SH256 hash:
dcb842f5e0da9d486cad34d4b809dcaadf9ec4d6991fdb22bdc9aea66489ad1a
MD5 hash:
c02a029c978f13b753c6b578b1588c75
SHA1 hash:
e125d59451e7f467bfd329a00a506decbcd91d83
Link:
https://www.unpac.me/results/2e4292df-9041-42c7-bace-d38817985b85/
SH256 hash:
f0eaf59d1afe9e9159e374328620313aa80da26c87ebc50a59fa10e7fff57e74
MD5 hash:
b5305ca0f7e727c2e2dad73fcd371fd6
SHA1 hash:
a0f56050b235dae02c7d2889074ed891b31a8d67
Link:
https://www.unpac.me/results/2e4292df-9041-42c7-bace-d38817985b85/
SH256 hash:
430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1
MD5 hash:
c9a81dcabe30d055caca7db9affe0248
SHA1 hash:
0e13ed377b15349ddef95c6eed281b46a50bbb5f
Link:
https://www.unpac.me/results/2e4292df-9041-42c7-bace-d38817985b85/
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/430d855fc783/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/430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1

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_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
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_CC_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing credit card regular expressions
Rule name:INDICATOR_SUSPICIOUS_EXE_Discord_Regex
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Discord tokens regular expressions
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_RawPaste_URL
Create hunting rule
Author:ditekSHen
Description:Detects executables (downlaoders) containing URLs to raw contents of a paste
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_References_VPN
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many VPN software clients. Observed in infosteslers
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_EXE_TelegramChatBot
Create hunting rule
Author:ditekSHen
Description:Detects executables using Telegram Chat Bot
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:INDICATOR_SUSPICIOUS_EXE_WirelessNetReccon
Create hunting rule
Author:ditekSHen
Description:Detects executables with interest in wireless interface using netsh
Rule name:malware_asyncrat
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect AsyncRat in memory
Reference:internal research
Rule name:MALWARE_Win_StormKitty
Create hunting rule
Author:ditekSHen
Description:Detects StormKitty infostealer
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_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
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 430d855fc783133d2d5bc01c095baff7d8b416a0f7c15a8a59288a96fcee7aa1

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/353487/
  
URLhaus
https://urlhaus.abuse.ch/url/2509508/
  
Delivery method
Distributed via web download

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