MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25. 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


PureLogsStealer


Vendor detections: 16


Intelligence 16 IOCs YARA 4 File information Comments
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SHA256 hash: b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25
SHA3-384 hash: 60986c0f4fafdd7ffc3098031ecc44cffee4e91f40c7cf62c8c834d4c819e44ed717393c527a95092d50fcdaa6ebd032
SHA1 hash: 748d1a1c07b106f065b0c1691ad88bed2a14233f
MD5 hash: 537c811241dd180a6c950d208520c6a5
humanhash: november-wisconsin-snake-idaho
File name:file
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:363'008 bytes
First seen:2024-03-19 14:06:05 UTC
Last seen:2024-03-19 14:09:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'610 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:7ntVu+z4DpPFPdv1PgQBvnsKghTzHEWG5EHLxy+AE:7Z8nPdvlIDHLxy
TLSH T1C074AFE4667BCE66EBEC43B860559A01A77D4986DFD3F709601408E58903B82C613EFF
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter Bitsight
Tags:exe PureLogStealer


Avatar
Bitsight
url: https://vk.com/doc329118071_676078472?hash=U6PEB4sKyhNsSgT0jsElWFyMfZCXoY7ue0EOHvn6Edc&dl=ZEOuaiLvSp00iuHrCXzfVDaWSfOBrOaugRU7ZsivJvL&api=1&no_preview=1#mene

Intelligence

File Origin
# of uploads :
2
# of downloads :
353
Origin country :
US US
Vendor Threat Intelligence
Malware family:
vidar
Create hunting rule
ID:
1
File name:
b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25.exe
Verdict:
Malicious activity
Analysis date:
2024-03-19 14:08:30 UTC
Tags:
vidar
Link:
https://app.any.run/tasks/68c9b43b-0417-4648-9cfc-5e6ac0e99738

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Packed.Zusy-10023527-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Launching a process
Creating a file
Сreating synchronization primitives
Behavior that indicates a threat
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
net_reactor packed packed
Link:
https://www.filescan.io/uploads/65f99c0d204403ca94d61ba6/reports/b3cc2ea4-a9f6-4bee-9296-3c04d5e3224f/overview
Verdict:
Malicious
Labled as:
Lazy.Generic
Link:
https://www.hybrid-analysis.com/sample/b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25
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.
Malware family:
Vidar
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/9b0d3526-3169-42dd-b117-3c6207c4e9b0
Result
Threat name:
PureLog Stealer, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1411780
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Crypto Currency Wallets
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected PureLog Stealer
Yara detected Vidar
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1411780 Sample: file.exe Startdate: 19/03/2024 Architecture: WINDOWS Score: 100 29 steamcommunity.com 2->29 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected PureLog Stealer 2->39 41 7 other signatures 2->41 7 file.exe 2 2->7         started        signatures3 process4 signatures5 43 Found many strings related to Crypto-Wallets (likely being stolen) 7->43 45 Contains functionality to inject code into remote processes 7->45 47 Writes to foreign memory regions 7->47 49 2 other signatures 7->49 10 RegAsm.exe 37 7->10         started        15 RegAsm.exe 7->15         started        17 conhost.exe 7->17         started        19 RegAsm.exe 7->19         started        process6 dnsIp7 31 5.75.210.0, 443, 49706, 49707 HETZNER-ASDE Germany 10->31 33 steamcommunity.com 104.102.129.112, 443, 49705 AKAMAI-ASUS United States 10->33 21 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 10->21 dropped 23 C:\Users\user\AppData\...\softokn3[1].dll, PE32 10->23 dropped 25 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 10->25 dropped 27 10 other files (none is malicious) 10->27 dropped 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 10->51 53 Found many strings related to Crypto-Wallets (likely being stolen) 10->53 55 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->55 59 4 other signatures 10->59 57 Searches for specific processes (likely to inject) 15->57 file8 signatures9
Score:
93%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2024-03-19 14:07:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=whs2rvqb3xyjty7clqomfywgl5draaw33vg7cja2yxibj4ldzusq._file
Verdict:
malicious
Result
Malware family:
zgrat
Create hunting rule
Score:
  10/10
Tags:
family:vidar family:zgrat botnet:4cf8d799a3641f9821e54be56c960e28 rat stealer
Link:
https://tria.ge/reports/240319-rey8msee8y/
Behaviour
Modifies system certificate store
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Detect Vidar Stealer
Detect ZGRat V1
Vidar
ZGRat
Malware Config
C2 Extraction:
https://steamcommunity.com/profiles/76561199654112719
https://t.me/r2d0s
Unpacked files
SH256 hash:
b14fe4b460672c299fc57f3695fd1801744b6c29f4b79c152bbb69b871bf8df0
MD5 hash:
081391a39d55d5260bce9621dfbfe5e3
SHA1 hash:
ae1571e37b4b21962084082bf01e62807e8882f5
Detections:
VidarStealer
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
Link:
https://www.unpac.me/results/e95c0667-4b18-471d-b5c3-ad698acc0635/
Parent samples :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 hash:
b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25
MD5 hash:
537c811241dd180a6c950d208520c6a5
SHA1 hash:
748d1a1c07b106f065b0c1691ad88bed2a14233f
Link:
https://www.unpac.me/results/e95c0667-4b18-471d-b5c3-ad698acc0635/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25

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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
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.

Web download

PureLogsStealer

Executable exe b1e5a8d601ddf099e3e25c1cc2e2c65f471002dbdd4df1241ac5d014f163cd25

(this sample)

  
Dropped by
Privateloader
  
Delivery method
Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments