MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c575aa5e93a77f506411780e84f57617a784605557c36053bc3535306509f03. 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: 11


Intelligence 11 IOCs YARA 4 File information Comments

SHA256 hash: 8c575aa5e93a77f506411780e84f57617a784605557c36053bc3535306509f03
SHA3-384 hash: 5016b974783bba196cab04fe3c24fdc40bee058d913fa37d8357bf228fd59d5e837e7d7452e33b7001e5c4cf6d23a13f
SHA1 hash: e9275447f8fd436b726a868025f49412b5cba811
MD5 hash: 3447635f58aa5581db95a3829b004f5b
humanhash: lake-failed-hawaii-delta
File name:quotation.exe
Download: download sample
Signature BluStealer
File size:677'360 bytes
First seen:2022-10-03 13:14:50 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:jCfAg0DqCrZVRr7s2uUBdx5bwY8nmX5nadvQeQPR:jmzGqaZVBmUnxympnKo/PR
TLSH T15AE48CF0317D93C3D1A28EB11FCA4A7079F175ADA8C0560DA0F59B2E93D2395249C9FA
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 d4a6a494a48484a4 (65 x AgentTesla, 39 x Formbook, 8 x RemcosRAT)
Reporter James_inthe_box
Tags:BluStealer exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
272
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
quotation.exe
Verdict:
Malicious activity
Analysis date:
2022-10-03 09:22:02 UTC
Tags:
stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Creating a window
Reading critical registry keys
Creating a file in the %AppData% subdirectories
DNS request
Sending a custom TCP request
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
80%
Tags:
obfuscated 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, ThunderFox Stealer, a310Logg
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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
Antivirus / Scanner detection for submitted sample
Contains functionality to inject code into remote processes
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)
Multi AV Scanner detection for submitted file
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
Yara detected BluStealer
Yara detected ThunderFox Stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Leonem
Status:
Malicious
First seen:
2022-10-02 23:02:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
blustealer
Score:
  10/10
Tags:
family:blustealer collection stealer
Behaviour
Script User-Agent
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
BluStealer
Malware Config
C2 Extraction:
https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a28d2e63b09f39bbb8c10b5f3d5822bb4766f41051c9a3994eb34390b9e8622a
MD5 hash:
01b2943dbcbdf1e1acd323cca6a5498a
SHA1 hash:
ead525d7bdb4c8c315e4c5d3b0f2580e0648aa96
SH256 hash:
5c8b234f7aa8dad6fb44d44f056e07f5ce743b561f3db758ee4a4829d6e99236
MD5 hash:
7186ffe7e4719c39e6c64619d9a45a84
SHA1 hash:
47695839f0a8afd257acfc1d98b9590d9e5b893c
SH256 hash:
c8a113f4a247a6424208be28e2e2ade4ad862999caed76c1d39ce426e1c0aa40
MD5 hash:
13bda2deebf7f5ef091522ec2be9ded4
SHA1 hash:
2af1d935faa9e04eabe067f36acdf0486a234d8f
SH256 hash:
8c575aa5e93a77f506411780e84f57617a784605557c36053bc3535306509f03
MD5 hash:
3447635f58aa5581db95a3829b004f5b
SHA1 hash:
e9275447f8fd436b726a868025f49412b5cba811
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:pdb_YARAify
Author:@wowabiy314
Description:PDB
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.

  
Delivery method
Other

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