MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c35cd99a9bd4f1a8289d3bc98bf59a57ac7816ec16de668d37cf4ee747ab7c35. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments

SHA256 hash: c35cd99a9bd4f1a8289d3bc98bf59a57ac7816ec16de668d37cf4ee747ab7c35
SHA3-384 hash: cfb161d2a5bbbd23f00982c9dcc9d28414945f74bbf21a1701ac90bcf2a9be16b9f024638e0d377560fb01be2b0d37f1
SHA1 hash: 59f789e3d42b06fa875abfd801dbb02425e7f1f7
MD5 hash: 65ae911b0aff53af557cd58a6c68be64
humanhash: skylark-white-august-white
File name:Comprobante transferencia.xlxs.pdf.exe
Download: download sample
Signature StormKitty
File size:176'512 bytes
First seen:2022-09-23 05:26:24 UTC
Last seen:2022-09-30 17:53:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:2KFHC+bcA0wmv5GZopfShP5yEsuTSj6deVoL+Lb4bnrzoyKOHm:jYs0wmv5yotShP5ygej6deGrfdG
Threatray 305 similar samples on MalwareBazaar
TLSH T171049E887604B18FC42BD432CADA4C64ABA47CAB571BD213B08773AD995D7DBCF050E6
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter adrian__luca
Tags:exe StormKitty

Intelligence


File Origin
# of uploads :
2
# of downloads :
254
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Creating a window
Using the Windows Management Instrumentation requests
Reading critical registry keys
Forced shutdown of a system process
Query of malicious DNS domain
Stealing user critical data
Unauthorized injection to a system process
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed
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.
Result
Threat name:
BluStealer, StormKitty
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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 submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected BluStealer
Yara detected Generic Downloader
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Infostealer.Azorult
Status:
Malicious
First seen:
2022-09-22 08:37:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
stormkitty
Score:
  10/10
Tags:
family:blustealer family:stormkitty collection spyware stealer
Behaviour
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Accesses cryptocurrency files/wallets, possible credential harvesting
Looks up external IP address via web service
BluStealer
StormKitty
StormKitty payload
Malware Config
C2 Extraction:
https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
2ad83e27ff190975c75e5199f2e4a991e94fd2a499870f8cde7c5839c1a73d85
MD5 hash:
f4a522e597e9b4d01d59c617e6eeb6f3
SHA1 hash:
84ba92edfb88cace6c189b42121e8461864cc269
SH256 hash:
5fcd4e3a9fcbd19f89d73919311d52abdcf95994123942ac533e60a9f198e1d6
MD5 hash:
21080c64225c8f730626c293703cc378
SHA1 hash:
574eb72eefc0264c2149daae53fd26c5494b6071
SH256 hash:
4166e7f6caf2a7c5598acaef9fde83dc82604cea200ed409fcd1b7d6f0d7713d
MD5 hash:
3dd57eaf79c12c929481e56536b9b51a
SHA1 hash:
39c28374307943d4b17e299847d8e2b3d045671f
SH256 hash:
c35cd99a9bd4f1a8289d3bc98bf59a57ac7816ec16de668d37cf4ee747ab7c35
MD5 hash:
65ae911b0aff53af557cd58a6c68be64
SHA1 hash:
59f789e3d42b06fa875abfd801dbb02425e7f1f7
Please note that we are no longer able to provide a coverage score for Virus Total.

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_ConfuserEx
Author:ditekSHen
Description:Detects executables packed with ConfuserEx Mod
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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

StormKitty

Executable exe c35cd99a9bd4f1a8289d3bc98bf59a57ac7816ec16de668d37cf4ee747ab7c35

(this sample)

  
Delivery method
Distributed via e-mail attachment

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