MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0
SHA3-384 hash: 7c31a54c5fce97a25031e6d2b01138256cc771005c2d2d5e9aedd7ca5d08b693e578e61e332099c1ce2d11c848bfdd36
SHA1 hash: ef37cc9148e0621b6346f43be55a678f84ac55d9
MD5 hash: ab99fa36c3972729c0b1d2619bf1e1a9
humanhash: papa-arkansas-whiskey-pip
File name:rDU-Payment48R_.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:196'672 bytes
First seen:2024-07-15 13:45:05 UTC
Last seen:2024-07-24 20:41:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 3072:hDA/+m6PcIizP6m0HcxmF3MUH/mkzoi4lZeIAQ/bTjY:hDUePcI4F/i4lYIAY4
Threatray 1'113 similar samples on MalwareBazaar
TLSH T13614C84F764686E9C288ABF6C1EB090007F4D7C1EA53D21F75CA13F59C4B3AAA9415CB
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon f2b2722831300a62 (1 x PureLogsStealer)
Reporter FXOLabs
Tags:exe PureLogStealer

Intelligence

File Origin
# of uploads :
6
# of downloads :
384
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0.exe
Verdict:
Malicious activity
Analysis date:
2024-07-15 13:51:57 UTC
Tags:
netreactor purecrypter purelogs
Link:
https://app.any.run/tasks/ca72e6d6-dfd1-4389-800b-a4b51f00efd1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoaderNET.997.8060.18305.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=669527e184e955866872b69bwin7simulatehigh_evasion
Tags:
Encryption Static Dldr
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Creating a file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a process with a hidden window
Connection attempt
Query of malicious DNS domain
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade net_reactor overlay packed packed
Link:
https://www.filescan.io/uploads/66952822d6d14b8adc360941/reports/9e93ddc5-09cd-4b19-b8b9-451cc0c24fee/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0
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:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/78da0239-a4ae-4c0a-a8de-62eb1a2541e6
Result
Threat name:
PureLog Stealer, zgRAT
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1473581
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
Downloads files with wrong headers with respect to MIME Content-Type
Found many strings related to Crypto-Wallets (likely being stolen)
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 dropped file
Multi AV Scanner detection for submitted file
Sample has a suspicious name (potential lure to open the executable)
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1473581 Sample: rDU-Payment48R_.exe Startdate: 15/07/2024 Architecture: WINDOWS Score: 100 26 canutelibrarynews.com 2->26 28 121.205.6.0.in-addr.arpa 2->28 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected PureLog Stealer 2->38 40 9 other signatures 2->40 7 rDU-Payment48R_.exe 15 5 2->7         started        12 prnwatch_4.18.0.5188.exe 14 3 2->12         started        signatures3 process4 dnsIp5 30 canutelibrarynews.com 203.161.42.156, 49712, 49728, 80 VNPT-AS-VNVNPTCorpVN Malaysia 7->30 20 C:\Users\user\...\prnwatch_4.18.0.5188.exe, PE32 7->20 dropped 22 prnwatch_4.18.0.5188.exe:Zone.Identifier, ASCII 7->22 dropped 24 C:\Users\user\...\rDU-Payment48R_.exe.log, ASCII 7->24 dropped 42 Found many strings related to Crypto-Wallets (likely being stolen) 7->42 44 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->44 46 Injects a PE file into a foreign processes 7->46 14 rDU-Payment48R_.exe 22 7->14         started        48 Multi AV Scanner detection for dropped file 12->48 18 prnwatch_4.18.0.5188.exe 22 12->18         started        file6 signatures7 process8 dnsIp9 32 91.92.255.36, 4378, 49727, 49729 THEZONEBG Bulgaria 14->32 50 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->50 52 Tries to steal Mail credentials (via file / registry access) 14->52 54 Found many strings related to Crypto-Wallets (likely being stolen) 14->54 56 Tries to harvest and steal browser information (history, passwords, etc) 18->56 58 Tries to harvest and steal Bitcoin Wallet information 18->58 signatures10
Score:
91%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-07-15 05:15:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=w6klwqffw4yvbc7ofht436rrurdrakowwgdq4yzhvefww2z62taa._file
Verdict:
malicious
Similar samples:
4589cef24c0d5800c245c74d5b4c3f38bb5bc5893db52a58740a26b011ebe4c9
PureLogsStealer
6095332b4a96dee4fa6e71a5c233842977eddcdb1a57663943685d96fb27e8e3
PureLogsStealer
697444c2cb0a7bd6fde35bd250870e7a9aa4a2b49beb0ff2c795f8c507bb5c15
PureLogsStealer
767ad6a683c15dc908cd12b10e115c9b3dd1de419ac8f84ce80ccbfd7c0a564a
PureLogsStealer
ca9290e039e90f5b8c5b028f2153aec63e715ece4f200fc4fb5e06da5c865aa2
PureLogsStealer
d80327695eebee6940b7a55704b4c712e22c37f5bc95f2d5d6fc83e90f87bf55
PureLogsStealer
+ 1'103 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection spyware stealer
Link:
https://tria.ge/reports/240715-q2ypyswdqe/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/f63be810-cb3e-4077-8b85-2ad8f6e62b05
Unpacked files
SH256 hash:
b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0
MD5 hash:
ab99fa36c3972729c0b1d2619bf1e1a9
SHA1 hash:
ef37cc9148e0621b6346f43be55a678f84ac55d9
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/954283fd-08f8-4155-8aba-01b45f486057/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b794bb40a5b7/report/overview.html
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/b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0

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:NET
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
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

PureLogsStealer

Executable exe b794bb40a5b731508bee29e7cdfa31a4471029d6b1870e6327a90b6b6b3ed4c0

(this sample)

  
Delivery method
Distributed via e-mail attachment

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