MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d7c6ed697ee011ad969d1d7c706d88a962584f87d543fcc77ee358c5bfb4509. 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: 15


Intelligence 15 IOCs YARA 5 File information Comments

SHA256 hash: 1d7c6ed697ee011ad969d1d7c706d88a962584f87d543fcc77ee358c5bfb4509
SHA3-384 hash: 7a33c32f865da6d9846da87db6097f7bf80725f0877d421b06d9decfd746191eb0d8afcbfd707cad8e8739965297fef9
SHA1 hash: 6add2fe6a76201390ecc2e950203fadeca3f0161
MD5 hash: b0b0b09a9bf3348c6746cae342dff4b6
humanhash: robin-charlie-beryllium-social
File name:SecuriteInfo.com.Win32.CrypterX-gen.29909.13693
Download: download sample
Signature PureLogsStealer
File size:1'953'792 bytes
First seen:2024-08-13 12:27:02 UTC
Last seen:2024-08-13 13:51:26 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:VU+i4hqrt8ZgqiPYV/OIMZ9JeMorwzh+9dhYCOQ1CqKZJzajUN3de/:mrt8Sq3VOFloIs9YjQka2e/
TLSH T1789512285B5D8A11C78DC1F468BC0788C6F1D2DAE60BDB878995B0F02F437AB49D7197
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)
Reporter SecuriteInfoCom
Tags:exe PureLogStealer

Intelligence


File Origin
# of uploads :
2
# of downloads :
492
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Win32.CrypterX-gen.29909.13693
Verdict:
Malicious activity
Analysis date:
2024-08-13 12:28:22 UTC
Tags:
purecrypter purelogs stealer netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
Network Stealth Nekark
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %AppData% directory
Launching a process
Creating a file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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:
PureLog Stealer, zgRAT
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
.NET source code contains very large array initializations
AI detected suspicious sample
Allocates memory in foreign processes
Found many strings related to Crypto-Wallets (likely being stolen)
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
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)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected PureLog Stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1492152 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 13/08/2024 Architecture: WINDOWS Score: 100 27 169.241.9.0.in-addr.arpa 2->27 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 Yara detected PureLog Stealer 2->45 47 8 other signatures 2->47 7 Pwmmxw.exe 2 2->7         started        10 Pwmmxw.exe 2 2->10         started        12 SecuriteInfo.com.Win32.CrypterX-gen.29909.13693.exe 1 4 2->12         started        signatures3 process4 file5 49 Multi AV Scanner detection for dropped file 7->49 51 Writes to foreign memory regions 7->51 53 Allocates memory in foreign processes 7->53 15 InstallUtil.exe 20 7->15         started        55 Injects a PE file into a foreign processes 10->55 19 InstallUtil.exe 20 10->19         started        23 C:\Users\user\AppData\Roaming\Pwmmxw.exe, PE32 12->23 dropped 25 C:\Users\user\...\Pwmmxw.exe:Zone.Identifier, ASCII 12->25 dropped 57 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 12->57 21 InstallUtil.exe 3 12->21         started        signatures6 process7 dnsIp8 29 89.37.99.5, 2055, 49730, 49737 BANDWIDTH-ASGB Romania 15->29 31 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 15->31 33 Tries to steal Mail credentials (via file / registry access) 15->33 35 Found many strings related to Crypto-Wallets (likely being stolen) 15->35 37 Tries to harvest and steal browser information (history, passwords, etc) 19->37 39 Tries to harvest and steal Bitcoin Wallet information 19->39 signatures9
Threat name:
ByteCode-MSIL.Trojan.CrypterX
Status:
Malicious
First seen:
2024-08-13 09:36:19 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Verdict:
unknown
Result
Malware family:
purelogstealer
Score:
  10/10
Tags:
family:purelogstealer collection credential_access discovery persistence stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Credentials from Password Stores: Credentials from Web Browsers
PureLog Stealer
PureLog Stealer payload
Suspicious use of NtCreateUserProcessOtherParentProcess
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
1d7c6ed697ee011ad969d1d7c706d88a962584f87d543fcc77ee358c5bfb4509
MD5 hash:
b0b0b09a9bf3348c6746cae342dff4b6
SHA1 hash:
6add2fe6a76201390ecc2e950203fadeca3f0161
Detections:
SUSP_OBF_NET_Eazfuscator_String_Encryption_Jan24
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
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.

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