MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9da2b0b4faa792adade4a1bb0557486073ff2ac52c6c4271439d99419ac5f28. 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


BluStealer


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f9da2b0b4faa792adade4a1bb0557486073ff2ac52c6c4271439d99419ac5f28
SHA3-384 hash: 5696a0211fdbaf4f808ec386dfdfc4efa66edb386a7e214a95a0051fa14a946d4e7b6e8d21403ba9a14f5eaf5da6775d
SHA1 hash: 95eb0bc623c9424766980c8c692474d944093796
MD5 hash: a50aba5b44491b339ad28e631f0d85f6
humanhash: quebec-fanta-bakerloo-ohio
File name:SecuriteInfo.com.Variant.Ursu.725994.24508.28552
Download: download sample
Signature BluStealer
Create hunting rule
File size:318'296 bytes
First seen:2022-05-04 12:34:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:3koeVxB3Zfcpn+1MVoyJPkbu1OK1OvR6EPOsmHfEXXknCYQWB1Z2SO1BkQ2y14BU:0oO5GfqPxrCBYN
TLSH T15B649CF9D7E357D3F8326E36CB91523460323EC9A4E46DF555C8B62C4A301DEA21A92C
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 31f0c0b2b2c0f071 (8 x Formbook, 7 x AgentTesla, 4 x AsyncRAT)
Reporter SecuriteInfoCom
Tags:BluStealer exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
270
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Ursu.725994.24508.28552
Verdict:
Malicious activity
Analysis date:
2022-05-04 12:39:57 UTC
Tags:
stealer
Link:
https://app.any.run/tasks/f29bad0e-0caf-41dd-b97a-39243dd437f0

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/268617/
Detection(s):
SecuriteInfo.com.Variant.Ursu.725994.24508.28552.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
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:
obfuscated overlay packed
Link:
https://www.filescan.io/uploads/62727308801e66012b271b75/reports/bc662d00-a351-49c2-807e-1f53c244c644/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/8c03efd5-61da-42b8-ab55-f15d4546ace9
Result
Threat name:
a310Logger
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/987733
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
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 the Telegram API (likely for C&C communication)
Writes to foreign memory regions
Yara detected a310Logger
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620229 Sample: SecuriteInfo.com.Variant.Ur... Startdate: 04/05/2022 Architecture: WINDOWS Score: 100 59 Malicious sample detected (through community Yara rule) 2->59 61 Multi AV Scanner detection for submitted file 2->61 63 Yara detected a310Logger 2->63 65 3 other signatures 2->65 7 SecuriteInfo.com.Variant.Ursu.725994.24508.exe 16 7 2->7         started        12 Iwnupa.exe 14 3 2->12         started        14 Iwnupa.exe 2 2->14         started        process3 dnsIp4 45 lightermood.xyz 78.142.29.185, 49776, 49807, 49809 VERDINABZ Bulgaria 7->45 47 www.lightermood.xyz 7->47 37 C:\Users\user\AppData\Roaming\...\Iwnupa.exe, PE32 7->37 dropped 39 C:\Users\user\...\Iwnupa.exe:Zone.Identifier, ASCII 7->39 dropped 41 SecuriteInfo.com.V...25994.24508.exe.log, ASCII 7->41 dropped 67 Performs DNS queries to domains with low reputation 7->67 69 Writes to foreign memory regions 7->69 71 Injects a PE file into a foreign processes 7->71 16 MSBuild.exe 1 7 7->16         started        20 cmd.exe 1 7->20         started        22 MSBuild.exe 7->22         started        49 www.lightermood.xyz 12->49 73 Multi AV Scanner detection for dropped file 12->73 24 cmd.exe 12->24         started        51 www.lightermood.xyz 14->51 file5 signatures6 process7 dnsIp8 43 api.telegram.org 149.154.167.220, 443, 49804, 49806 TELEGRAMRU United Kingdom 16->43 53 Writes to foreign memory regions 16->53 55 Allocates memory in foreign processes 16->55 57 Injects a PE file into a foreign processes 16->57 26 AppLaunch.exe 2 16->26         started        29 conhost.exe 20->29         started        31 timeout.exe 1 20->31         started        33 conhost.exe 24->33         started        35 timeout.exe 24->35         started        signatures9 process10 signatures11 75 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->75 77 Tries to steal Mail credentials (via file / registry access) 26->77 79 Tries to harvest and steal browser information (history, passwords, etc) 26->79
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f9da2b0b4faa792adade4a1bb0557486073ff2ac52c6c4271439d99419ac5f28/
Threat name:
Win32.Trojan.Ursu
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 12:35:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
11 of 42 (26.19%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=7hncwc2pvj4svww6jin3avluqydt74vmkldmijyuhhmzignml4ua._file
Verdict:
malicious
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer collection persistence stealer
Link:
https://tria.ge/reports/220504-psbndsdgb4/
Behaviour
Delays execution with timeout.exe
Script User-Agent
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
Checks computer location settings
BluStealer
Malware Config
C2 Extraction:
https://api.telegram.org/bot5196367687:AAFQMFaS-BkGAqcvbLlF32Aj913Yy9Y9iFI/sendMessage?chat_id=1293496579
Unpacked files
SH256 hash:
f9da2b0b4faa792adade4a1bb0557486073ff2ac52c6c4271439d99419ac5f28
MD5 hash:
a50aba5b44491b339ad28e631f0d85f6
SHA1 hash:
95eb0bc623c9424766980c8c692474d944093796
Link:
https://www.unpac.me/results/c12c169a-dfde-4c20-b80c-5929508b3c52/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f9da2b0b4faa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/f9da2b0b4faa792adade4a1bb0557486073ff2ac52c6c4271439d99419ac5f28

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/268617/

Comments