MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133. 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: b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133
SHA3-384 hash: 60133ca0ed17115eba29574027ac0ad83814d1bbc8470d55fae2fa6816534441fac62319a5179f0c06709c8e6d1ca28a
SHA1 hash: a93f95ea424cff81c6ec6a7d5583b2de897be46a
MD5 hash: f3f0f6d41762e72c52b93325d5eb2ab8
humanhash: twelve-quebec-oven-diet
File name:MT155026.exe
Download: download sample
Signature BluStealer
Create hunting rule
File size:202'752 bytes
First seen:2022-06-20 08:22:33 UTC
Last seen:2022-06-20 08:44:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:YHRjyGIh42lhp6kELfMaCChd7ntnR+iEiiiX8n8nsMGGTdjt+++Gvx/bb2exNEzw:4jxIh42/uSdwlOVhhJRYXswGjVS
Threatray 1'516 similar samples on MalwareBazaar
TLSH T16514ABF36BD8C8DEDB586234F3421E1703516DEC68D6A23D1FDE7A29C630A6960F8560
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 b0829c988c868070 (14 x AgentTesla, 4 x Formbook, 4 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:BluStealer exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Detection:
A310Logger
Create hunting rule
Link:
https://www.capesandbox.com/analysis/281461/
Detection(s):
SecuriteInfo.com.Variant.Strictor.273382.15394.30593.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:
Verdict:
Malicious
Threat level:
  10/10
Confidence:
83%
Tags:
packed strictor
Link:
https://www.filescan.io/uploads/62b02ea4f4dd1ffb77a3475b/reports/ee406e39-7210-4508-be04-d35e3ae380e9/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:
Malicious
Link:
https://analyze.intezer.com/analyses/47549b5f-49c8-4c42-887f-f52ddb0ca4c2
Result
Threat name:
SpyEx
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1016140
Signature
.NET source code contains potential unpacker
Antivirus detection for dropped file
Antivirus detection for URL or domain
Creates multiple autostart registry keys
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes or reads registry keys via WMI
Yara detected Costura Assembly Loader
Yara detected SpyEx stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 648636 Sample: MT155026.exe Startdate: 20/06/2022 Architecture: WINDOWS Score: 100 46 www.sanipass-solutions.fr 2->46 52 Malicious sample detected (through community Yara rule) 2->52 54 Antivirus detection for URL or domain 2->54 56 Multi AV Scanner detection for submitted file 2->56 58 4 other signatures 2->58 8 MT155026.exe 16 8 2->8         started        13 Zsvfw.exe 14 2 2->13         started        15 Zsvfw.exe 2->15         started        17 2 other processes 2->17 signatures3 process4 dnsIp5 50 www.sanipass-solutions.fr 164.132.235.17, 49766, 49843, 49860 OVHFR France 8->50 40 C:\Users\...\Xuagikxwratgqxwhckuurqtas.exe, PE32+ 8->40 dropped 42 C:\Users\user\AppData\...\MT155026.exe.log, ASCII 8->42 dropped 44 C:\Users\user\AppData\Roaming\...\Zsvfw.exe, PE32 8->44 dropped 68 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->68 70 Creates multiple autostart registry keys 8->70 72 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 8->72 74 2 other signatures 8->74 19 MT155026.exe 12 8->19         started        23 Xuagikxwratgqxwhckuurqtas.exe 14 2 8->23         started        26 cmd.exe 1 8->26         started        file6 signatures7 process8 dnsIp9 34 C:\Users\Public\...\sqlite3.dll, PE32 19->34 dropped 36 C:\Users\Public\...\footnoted.exe, PE32 19->36 dropped 38 C:\Users\Public\...\SQLite3_StdCall.dll, PE32 19->38 dropped 60 Creates multiple autostart registry keys 19->60 62 Tries to harvest and steal browser information (history, passwords, etc) 19->62 64 Tries to steal Crypto Currency Wallets 19->64 48 www.sanipass-solutions.fr 23->48 66 Antivirus detection for dropped file 23->66 28 WerFault.exe 20 9 23->28         started        30 conhost.exe 26->30         started        32 timeout.exe 1 26->32         started        file10 signatures11 process12
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133/
Threat name:
ByteCode-MSIL.Downloader.Seraph
Create hunting rule
Status:
Malicious
First seen:
2022-06-20 08:23:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
20 of 26 (76.92%)
Threat level:
  3/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wp2rjoohff7zqbbwqxcsmnfwmmaqywsfdkt2jiraoittwtctkezq._file
Verdict:
malicious
Similar samples:
0365280eb3842ba84e01d192e38be3e5b6357a6c8e178955928e7639f2b8f442
BluStealer
089d64094a0cbe3fc87733eaf8f49bb1d818948429fa80de8953b8ff2c667a6a
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16a65becc015149e6569c25dc65a9af23d67ffe7fd88ecf616a90b01c60a16ba
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660050048d88242c77c278463c5c5d727582ebdd08f702ad387507ce54b3e761
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792bc8203c1c9e51685d264f5bb7a78f3a3fcf15ff7bfba813e2b5affa0909c8
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89fd50a006af9537d9181a8d2dd4872cd29639150ef2ed96a93ed1c3ad1967a4
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8f66ff28a6f980ec9211dec93dc22411b479a257238f8405c7e9e038c9b53223
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c0ad726c33bd7a5bb7bfc56882d658f9bef030217ce0db125d4689edf5d54b98
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e4af6a6b4243bb6971be7edc28f16198ff88734d6a764dcddc6f5c6424309bd6
BluStealer
+ 1'506 additional samples on MalwareBazaar
Result
Malware family:
blustealer
Create hunting rule
Score:
  10/10
Tags:
family:blustealer persistence stealer
Link:
https://tria.ge/reports/220620-j95d5sbdgl/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
BluStealer
Unpacked files
SH256 hash:
b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133
MD5 hash:
f3f0f6d41762e72c52b93325d5eb2ab8
SHA1 hash:
a93f95ea424cff81c6ec6a7d5583b2de897be46a
Link:
https://www.unpac.me/results/c3366cb8-801c-47e0-b54d-13f7471174e2/
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/b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133

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.

Malspam

BluStealer

Executable exe b3f514b9c7297f98043685c52634b663010c5a451aa7a4a22072273b4c535133

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/281461/

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