MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032
SHA3-384 hash: b7daef4c8a60ddf23806d08d96e1ef0ee0c95bd3611f0a7edf1e14da8f5cfbd4180859291718e2a416b0e88f4b07f151
SHA1 hash: 999fc3514c83f5b3bfaf899b656a194f7f60ed05
MD5 hash: e0354350b177887076f4c89567e0af8d
humanhash: dakota-michigan-alaska-tango
File name:SecuriteInfo.com.Win32.DropperX-gen.4585.5087
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:7'168 bytes
First seen:2024-06-05 09:41:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 96:nGJKj1y2oPbML8RcyuHazDvDId4IBmc+TMsa+aIVzNt:G4jU2o48RVHA4U0Zv
Threatray 5'320 similar samples on MalwareBazaar
TLSH T190E1E6109BD88733E9661B75DCB357815AB8F30948579FAFACCC201A2D0239016BA3F5
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter SecuriteInfoCom
Tags:exe PureLogStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
347
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032.exe
Verdict:
Malicious activity
Analysis date:
2024-06-05 09:44:11 UTC
Tags:
purecrypter purelogs exfiltration stealer
Link:
https://app.any.run/tasks/ef185b7e-f4d4-4afd-94de-f086a678a8f1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.DropperX-gen.4585.5087.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=666050b831703c6eb90547f9win7simulatehigh_evasion
Tags:
Heur
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a process with a hidden window
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade
Link:
https://www.filescan.io/uploads/666032ebef9fdf64aa67908d/reports/a8b67ab5-4a92-4a94-9f03-f82bde1558aa/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032
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/ca832808-5ac0-4965-aa5d-5c5d31a74d44
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1452260
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
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 dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1452260 Sample: SecuriteInfo.com.Win32.Drop... Startdate: 05/06/2024 Architecture: WINDOWS Score: 100 32 www1.militarydefensenow.com 2->32 34 203.215.12.0.in-addr.arpa 2->34 48 Snort IDS alert for network traffic 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 7 other signatures 2->54 7 SecuriteInfo.com.Win32.DropperX-gen.4585.5087.exe 15 5 2->7         started        12 Uwhyogr.exe 14 3 2->12         started        14 Uwhyogr.exe 2 2->14         started        signatures3 process4 dnsIp5 36 www1.militarydefensenow.com 34.192.83.212, 443, 49711, 49719 AMAZON-AESUS United States 7->36 24 C:\Users\user\AppData\Roaming\Uwhyogr.exe, PE32 7->24 dropped 26 C:\Users\user\...\Uwhyogr.exe:Zone.Identifier, ASCII 7->26 dropped 28 SecuriteInfo.com.W...n.4585.5087.exe.log, ASCII 7->28 dropped 56 Found many strings related to Crypto-Wallets (likely being stolen) 7->56 58 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 7->58 60 Injects a PE file into a foreign processes 7->60 16 SecuriteInfo.com.Win32.DropperX-gen.4585.5087.exe 20 7->16         started        62 Multi AV Scanner detection for dropped file 12->62 20 Uwhyogr.exe 12->20         started        22 Uwhyogr.exe 14->22         started        file6 signatures7 process8 dnsIp9 30 65.108.24.99, 49718, 49720, 49725 ALABANZA-BALTUS United States 16->30 38 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->38 40 Tries to steal Mail credentials (via file / registry access) 16->40 42 Found many strings related to Crypto-Wallets (likely being stolen) 16->42 44 Tries to harvest and steal Bitcoin Wallet information 20->44 46 Tries to harvest and steal browser information (history, passwords, etc) 22->46 signatures10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032/
Threat name:
ByteCode-MSIL.Trojan.PureLog
Create hunting rule
Status:
Malicious
First seen:
2024-06-05 05:23:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lbgjc2jsq6qnnrtpe6umb4medkwtg2f4jc45g2yqrbki7hzxaaza._file
Verdict:
malicious
Similar samples:
2e526b3159d26b4b5055af4b556cf0114c7d225c507b890cf9aef83527ed26bb
PureLogsStealer
584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032
PureLogsStealer
6fd6b5e4b0adfb00bd436ad0916b5d4ff6178aa78e28d22c81b6fcd159f19236
PureLogsStealer
c9cb2357f1c93a9f0e2dbd575c729c0a5afb18c30353ec689e13ebc4a7d2be72
PureLogsStealer
fefc63a2948e070ff4447b44700b1a83eef1ab7607338e969e16859b69ab6b20
PureLogsStealer
+ 5'310 additional samples on MalwareBazaar
Result
Malware family:
purecrypter
Create hunting rule
Score:
  10/10
Tags:
family:purecrypter collection downloader loader persistence spyware stealer
Link:
https://tria.ge/reports/240605-lpbx7scb91/
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
Adds Run key to start application
Reads WinSCP keys stored on the system
Reads user/profile data of web browsers
PureCrypter
Malware Config
C2 Extraction:
https://www1.militarydefensenow.com/Stay/Vdopcuygit.vdf
Unpacked files
SH256 hash:
584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032
MD5 hash:
e0354350b177887076f4c89567e0af8d
SHA1 hash:
999fc3514c83f5b3bfaf899b656a194f7f60ed05
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/376b9364-5b13-4e88-8153-6eaa45c6010f/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/584c91693287/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
StrelaStealer
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/584c91693287a0d6c66f27a8c0f1841aad3368bc48b9d36b1088548f9f370032

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:NETexecutableMicrosoft
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.

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