MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2. 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


StormKitty


Vendor detections: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2
SHA3-384 hash: 5850fe9a1b6402da54d70ba67f664d963e4fd24cd29c9bec0a124e29c16448763fb5b9ad74e8a8cbfd364638b042a905
SHA1 hash: e9311cd1e01e75eee53867c23ab3feb9ab9185ad
MD5 hash: fbc7a87a40a4f8b9ebc461f02b62a2f7
humanhash: tennessee-rugby-cold-mexico
File name:Wssimt.exe
Download: download sample
Signature StormKitty
Create hunting rule
File size:22'016 bytes
First seen:2022-10-19 06:32:25 UTC
Last seen:2022-10-19 14:21:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 192:yjjfdiDqXanIXkKQUngD33jI1MBSAitI6TxBQ:6daq4PUngpFoTn
Threatray 1'407 similar samples on MalwareBazaar
TLSH T1EFA21DE153E51CA2C6B5EEF5CBE277FE5937DA422D62B23A044342EB3D227152830613
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 1a191a2c2c0e090d (2 x StormKitty, 1 x Formbook)
Reporter lowmal3
Tags:exe StormKitty

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Wssimt.exe
Verdict:
No threats detected
Analysis date:
2022-10-19 06:41:29 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fce228a9-72b6-4e7f-97be-6c5284079396

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/321612/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Creating a window
Using the Windows Management Instrumentation requests
Sending an HTTP GET request
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/634f9a1efdf6478a15af92f1/reports/526a1416-0110-4ea8-a6f8-f38640f62ae9/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:
BluStealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/03e0f9f5-4706-4a42-a2e9-66b470d9297b
Result
Threat name:
BluStealer, StormKitty
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1093264
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected BluStealer
Yara detected Costura Assembly Loader
Yara detected MSILDownloaderGeneric
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 725886 Sample: Wssimt.exe Startdate: 19/10/2022 Architecture: WINDOWS Score: 100 77 Snort IDS alert for network traffic 2->77 79 Malicious sample detected (through community Yara rule) 2->79 81 Antivirus / Scanner detection for submitted sample 2->81 83 8 other signatures 2->83 7 Thvbp.exe 14 4 2->7         started        11 Wssimt.exe 16 7 2->11         started        14 Thvbp.exe 3 2->14         started        process3 dnsIp4 85 Antivirus detection for dropped file 7->85 87 Multi AV Scanner detection for dropped file 7->87 89 Machine Learning detection for dropped file 7->89 16 Thvbp.exe 7->16         started        19 powershell.exe 7->19         started        21 Thvbp.exe 7->21         started        49 cdn.discordapp.com 162.159.135.233, 443, 49704, 49716 CLOUDFLARENETUS United States 11->49 43 C:\Users\user\AppData\Roaming\...\Thvbp.exe, PE32 11->43 dropped 45 C:\Users\user\...\Thvbp.exe:Zone.Identifier, ASCII 11->45 dropped 47 C:\Users\user\AppData\...\Wssimt.exe.log, ASCII 11->47 dropped 91 Encrypted powershell cmdline option found 11->91 93 Injects a PE file into a foreign processes 11->93 23 Wssimt.exe 1 11->23         started        25 powershell.exe 15 11->25         started        51 162.159.134.233, 443, 49718 CLOUDFLARENETUS United States 14->51 27 powershell.exe 14->27         started        29 Thvbp.exe 14->29         started        file5 signatures6 process7 signatures8 61 Writes to foreign memory regions 16->61 63 Allocates memory in foreign processes 16->63 65 Injects a PE file into a foreign processes 16->65 31 AppLaunch.exe 16->31         started        35 conhost.exe 19->35         started        37 AppLaunch.exe 14 3 23->37         started        39 conhost.exe 25->39         started        41 conhost.exe 27->41         started        process9 dnsIp10 53 104.18.114.97, 49722, 80 CLOUDFLARENETUS United States 31->53 55 246.229.1.0.in-addr.arpa 31->55 67 Tries to steal Mail credentials (via file / registry access) 31->67 69 Tries to harvest and steal browser information (history, passwords, etc) 31->69 57 icanhazip.com 104.18.115.97, 49715, 80 CLOUDFLARENETUS United States 37->57 59 246.229.1.0.in-addr.arpa 37->59 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->71 73 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 37->73 75 May check the online IP address of the machine 37->75 signatures11
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-10-19 04:08:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bcvbc7chsx4t7w7oreisdiwnly5nyrwzkkewp3ddvmzfeq74pxra._file
Verdict:
malicious
Similar samples:
1de6232574a545bdc8d105cbdaaa84dcf6dc0d71774d46c7fbe158b13e11dd1a
StormKitty
2c3ce21aed9ecd191dfefd59e3ea35ec6ec665cbe79f35e628b6e720d2233662
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72f5582cc2f5a103307f8af4745d621c226dfb7940d33d18e8998b4ad1087373
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91139b19c219a2cf3882f5bcdc6610a8691b079c05ecf7aadb1d461bee084266
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91be6258668b873244ec00091e663437dbb0967ee31406538376560de2b9a0e2
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9e7cb024e62e187846eba6226090feb70eeafa917347d0d66ba3a1062a5a098e
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f636d15642c8a199f125c5128bae3f367e7e9595af631d1080f24fc6d94fcb2a
StormKitty
+ 1'397 additional samples on MalwareBazaar
Result
Malware family:
stormkitty
Create hunting rule
Score:
  10/10
Tags:
family:blustealer family:stormkitty collection discovery persistence stealer
Link:
https://tria.ge/reports/221019-ha681sfeck/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Creates a large amount of network flows
BluStealer
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
https://api.telegram.org/bot5583812995:AAFKzjSLC2-pDvMQ8X47-80XjrRiWrDtxA/sendMessage?chat_id=5434600361
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/e8e365f0-b448-4d69-a6cd-6f7222cac1bd
Unpacked files
SH256 hash:
08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2
MD5 hash:
fbc7a87a40a4f8b9ebc461f02b62a2f7
SHA1 hash:
e9311cd1e01e75eee53867c23ab3feb9ab9185ad
Detections:
SimpleCILDownloader
Create hunting rule
Link:
https://www.unpac.me/results/43a21e47-1599-411c-818b-79780a18c289/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2

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: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_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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

StormKitty

Executable exe 08aa117c4795f93fdbee891121a2cd5e3adc46d9528967ec63ab325243fc7de2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/321612/

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