MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120
SHA3-384 hash: 31081f1e3b85129561472290b9bead01fa214d4227fdcd9dd9c351c8d27b8ef374a04f466f503675d34d7076bbe999ab
SHA1 hash: 4fd0ba25d909aae7323779726adf50962f54d639
MD5 hash: 4f78d3f0bf744a5cbed541dd16bcae06
humanhash: uniform-potato-mirror-queen
File name:SWIFT_#W23756489996783546.pdf.exe
Download: download sample
Signature StormKitty
Create hunting rule
File size:24'064 bytes
First seen:2022-08-29 06:23:32 UTC
Last seen:2022-08-29 06:38:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 384:Y12UBFzL8oCPteunOPU526JSIN/+p8YlLHT5PoKVRUve:s8o04uOi2A1/+p8e8v
TLSH T1B3B2E8D2D25481B9FAB68E391573AE3601BF6EB66954B62E245DB0737F331834032E07
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 a526637266a55616 (4 x AgentTesla, 1 x StormKitty, 1 x MassLogger)
Reporter lowmal3
Tags:exe StormKitty

Intelligence

File Origin
# of uploads :
2
# of downloads :
250
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SWIFT_#W23756489996783546.pdf.exe
Verdict:
No threats detected
Analysis date:
2022-08-29 06:08:38 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b49471c7-f273-4151-bb4b-d1dac3907b5f

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/302047/
Detection(s):
SecuriteInfo.com.Trojan.Downloader.10124.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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/630c5b8c3e9e50b1bae74b1f/reports/e32484f5-c829-4aee-9f12-0698df545121/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.
Malware family:
BluStealer
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8718c595-4ee9-4822-b6c2-5d614e79339a
Result
Threat name:
AsyncRAT, BluStealer, StormKitty
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1059546
Signature
.NET source code contains potential unpacker
Encrypted powershell cmdline option found
Initial sample is a PE file and has a suspicious name
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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)
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected AsyncRAT
Yara detected BluStealer
Yara detected Generic Downloader
Yara detected Generic Dropper
Yara detected MSILDownloaderGeneric
Yara detected StormKitty Stealer
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 692064 Sample: SWIFT_#W23756489996783546.pdf.exe Startdate: 29/08/2022 Architecture: WINDOWS Score: 100 60 Malicious sample detected (through community Yara rule) 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Yara detected BluStealer 2->64 66 11 other signatures 2->66 7 SWIFT_#W23756489996783546.pdf.exe 16 7 2->7         started        12 Eilpl.exe 14 4 2->12         started        14 Eilpl.exe 3 2->14         started        process3 dnsIp4 48 cdn.discordapp.com 162.159.134.233, 443, 49755, 49770 CLOUDFLARENETUS United States 7->48 42 C:\Users\user\AppData\Roaming\...ilpl.exe, PE32 7->42 dropped 44 C:\Users\user\...ilpl.exe:Zone.Identifier, ASCII 7->44 dropped 46 C:\...\SWIFT_#W23756489996783546.pdf.exe.log, ASCII 7->46 dropped 68 Encrypted powershell cmdline option found 7->68 70 Injects a PE file into a foreign processes 7->70 16 SWIFT_#W23756489996783546.pdf.exe 1 7->16         started        18 powershell.exe 18 7->18         started        20 SWIFT_#W23756489996783546.pdf.exe 7->20         started        72 Multi AV Scanner detection for dropped file 12->72 74 Machine Learning detection for dropped file 12->74 22 Eilpl.exe 12->22         started        24 powershell.exe 12->24         started        50 162.159.130.233, 443, 49773 CLOUDFLARENETUS United States 14->50 26 powershell.exe 14->26         started        28 Eilpl.exe 14->28         started        file5 signatures6 process7 process8 30 AppLaunch.exe 14 3 16->30         started        34 conhost.exe 18->34         started        36 AppLaunch.exe 22->36         started        38 conhost.exe 24->38         started        40 conhost.exe 26->40         started        dnsIp9 52 icanhazip.com 104.18.115.97, 49772, 80 CLOUDFLARENETUS United States 30->52 54 207.189.1.0.in-addr.arpa 30->54 76 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 30->76 78 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 30->78 80 May check the online IP address of the machine 30->80 56 104.18.114.97, 49777, 80 CLOUDFLARENETUS United States 36->56 58 207.189.1.0.in-addr.arpa 36->58 82 Tries to steal Mail credentials (via file / registry access) 36->82 84 Tries to harvest and steal browser information (history, passwords, etc) 36->84 signatures10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120/
Threat name:
ByteCode-MSIL.Trojan.BluStealer
Create hunting rule
Status:
Malicious
First seen:
2022-08-29 03:55:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jznjaohcr2g3vk6kgt7ehr4yaxemtap6h5ahf755levorz3weeqa._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  9/10
Tags:
discovery
Link:
https://tria.ge/reports/220829-g5224schdk/
Behaviour
Suspicious use of AdjustPrivilegeToken
Creates a large amount of network flows
Unpacked files
SH256 hash:
4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120
MD5 hash:
4f78d3f0bf744a5cbed541dd16bcae06
SHA1 hash:
4fd0ba25d909aae7323779726adf50962f54d639
Link:
https://www.unpac.me/results/644574ee-95ea-47a3-8a4e-14053544e80f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4e5a9038e28e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120

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 4e5a9038e28e8dbaabca34fe43c79805c8c981fe3f4072ffbd592ae8e7762120

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/302047/

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