MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 baa7b027ef4fed86e02b6ffa8d6143dd09db213a53bceee7cf02d5cec64f760f. 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 9 File information Comments

SHA256 hash: baa7b027ef4fed86e02b6ffa8d6143dd09db213a53bceee7cf02d5cec64f760f
SHA3-384 hash: b371675a39af815be6ed6eef202c01eb9bb8a6d33b19422894aa0949b4a114d59d633880e289cad5dede1f437d1d02e2
SHA1 hash: 8743d14fe00e1cca03574687adfa709e81c4b636
MD5 hash: 3ae2502b4152cb98314ac0b6833b2957
humanhash: failed-connecticut-dakota-chicken
File name:Zam
Download: download sample
Signature PureLogsStealer
File size:1'052'680 bytes
First seen:2024-11-29 07:54:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:z1zGUxjbVLayM8BCsWKTmDXQrbrF3ROcEBe2emGF:pLffMv3KTGAvrBROcEA2Fa
Threatray 1 similar samples on MalwareBazaar
TLSH T17125E1883111B58FC8A3CD718995DD74A6306CAB970BC203E5DB2DEFBA1D6979E101F2
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
File icon (PE):PE icon
dhash icon 7474666674389882 (2 x PureLogsStealer, 2 x AgentTesla, 1 x Expiro)
Reporter Anonymous
Tags:exe PureLogStealer

Intelligence


File Origin
# of uploads :
1
# of downloads :
429
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Zam
Verdict:
Malicious activity
Analysis date:
2024-11-29 07:56:01 UTC
Tags:
netreactor purecrypter purelogs exfiltration stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
agenttesla virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Result
Threat name:
Discord Token Stealer, PureLog Stealer
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
Adds a directory exclusion to Windows Defender
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
Loading BitLocker PowerShell Module
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Discord Token Stealer
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1565072 Sample: Zam.exe Startdate: 29/11/2024 Architecture: WINDOWS Score: 100 46 87.228.1.0.in-addr.arpa 2->46 50 Sigma detected: Scheduled temp file as task from temp location 2->50 52 Yara detected PureLog Stealer 2->52 54 Yara detected Discord Token Stealer 2->54 56 7 other signatures 2->56 8 Zam.exe 7 2->8         started        12 ymvnpo.exe 5 2->12         started        signatures3 process4 file5 38 C:\Users\user\AppData\Roaming\ymvnpo.exe, PE32 8->38 dropped 40 C:\Users\user\...\ymvnpo.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpBA4E.tmp, XML 8->42 dropped 44 C:\Users\user\AppData\Local\...\Zam.exe.log, ASCII 8->44 dropped 58 Found many strings related to Crypto-Wallets (likely being stolen) 8->58 60 Uses schtasks.exe or at.exe to add and modify task schedules 8->60 62 Writes to foreign memory regions 8->62 70 2 other signatures 8->70 14 RegSvcs.exe 3 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        64 Multi AV Scanner detection for dropped file 12->64 66 Machine Learning detection for dropped file 12->66 68 Allocates memory in foreign processes 12->68 24 RegSvcs.exe 12->24         started        26 schtasks.exe 12->26         started        signatures6 process7 dnsIp8 48 193.34.212.17, 33102, 49735, 49737 PL-SKYTECH-ASPL Poland 14->48 72 Found many strings related to Crypto-Wallets (likely being stolen) 14->72 74 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 14->74 76 Loading BitLocker PowerShell Module 18->76 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        78 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 24->78 80 Tries to steal Mail credentials (via file / registry access) 24->80 82 Tries to harvest and steal browser information (history, passwords, etc) 24->82 84 Tries to harvest and steal Bitcoin Wallet information 24->84 36 conhost.exe 26->36         started        signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-11-29 07:55:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
collection discovery execution
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Unpacked files
SH256 hash:
1c876c8134d385bcb780c08d45bb60d0c9415230d1755c42ad55b4419d7a45b3
MD5 hash:
fdecd26c22079684100d57e914a6d2db
SHA1 hash:
8fefcbdf61bf9ee99c50f265f060f58649b63398
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
5303c1c596dd521f4c6c60450f079e0fa287fa383a753e15925c3cd103f08886
MD5 hash:
af35393b6f0ea54d5ff772cdd4617d78
SHA1 hash:
7c86ac2d1e411cc527601398b723d2b0ab21b388
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
baa7b027ef4fed86e02b6ffa8d6143dd09db213a53bceee7cf02d5cec64f760f
MD5 hash:
3ae2502b4152cb98314ac0b6833b2957
SHA1 hash:
8743d14fe00e1cca03574687adfa709e81c4b636
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_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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 (HIGH_ENTROPY_VA)high

Comments