MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed. 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: 20


Intelligence 20 IOCs 2 YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
SHA3-384 hash: 48a915384f411f97ffbb89d915d58cef08740043ae17d6930ea74e88f35fa09ecdc3045678584333986b734570850319
SHA1 hash: 5d9b7b947466041a7010496cedcee83d8e9878f1
MD5 hash: 6a9fa1e5afe6f5ca41c306a6b64d2507
humanhash: four-yankee-butter-april
File name:4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318a.exe
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:39'424 bytes
First seen:2025-11-02 19:35:05 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'669 x AgentTesla, 19'482 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:EJHy7ULu4mYSSzMqgNzArjbsYxW+E0wMa7CIM5qpv0eJ:eHy7Y8Nq5rjhR0Ma7RJJ
TLSH T10903D1051FE5C6ADDDAE0B3948F392545270E7822A2ABB0F94E9D04C5F77704CB42AF6
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
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)
Magika pebin
Reporter abuse_ch
Tags:exe PureLogsStealer


Avatar
abuse_ch
PureLogsStealer C2:
157.20.182.18:1990

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
157.20.182.18:1990 https://threatfox.abuse.ch/ioc/1631322/
157.20.182.18:2002 https://threatfox.abuse.ch/ioc/1631323/

Intelligence

File Origin
# of uploads :
1
# of downloads :
175
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
asyncrat
Create hunting rule
ID:
1
File name:
4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed.exe
Verdict:
Malicious activity
Analysis date:
2025-11-02 19:10:01 UTC
Tags:
auto-startup asyncrat
Link:
https://app.any.run/tasks/19dfc7b9-3b5f-4987-932d-9bcdbc9f6790

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AsyncRAT
Create hunting rule
Link:
https://www.capesandbox.com/analysis/35029/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6907ac88706befaf4ecb3559
Tags:
asyncrat autorun
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Running batch commands
Launching cmd.exe command interpreter
Creating a file
Launching a process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
base64 packed
Link:
https://www.filescan.io/uploads/6907b29421d55ed90d450d94/reports/85476204-43ba-4bf5-a56f-1d81d5a72990/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-02T10:32:00Z UTC
Last seen:
2025-11-02T18:32:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan.Win32.Generic Backdoor.MSIL.Crysan.c Backdoor.MSIL.Crysan.b Backdoor.MSIL.Agent.sb HEUR:Backdoor.MSIL.SheetRat.gen Trojan-PSW.Win32.Coins.sb Trojan.MSIL.Dnoper.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Cryptos.gen Backdoor.MSIL.Crysan.sb Backdoor.MSIL.Crysan.d PDM:Trojan.Win32.Generic HEUR:Backdoor.MSIL.Crysan.gen Trojan.MSIL.Agent.sb
Link:
https://opentip.kaspersky.com/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/ed8ba790-bb88-47d6-b28a-8ebd4804f9f8
Result
Threat name:
PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1806622
Signature
.NET source code contains a sample name check
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates a thread in another existing process (thread injection)
Drops PE files to the startup folder
Drops script or batch files to the startup folder
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Suspicious PowerShell Parameter Substring
Suricata IDS alerts for network traffic
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected Powershell decode and execute
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1806622 Sample: 4b18a8bf774b4074ff2d0cc95f6... Startdate: 02/11/2025 Architecture: WINDOWS Score: 100 56 nopirate1990.dynuddns.net 2->56 58 homelog2002.dynuddns.com 2->58 78 Suricata IDS alerts for network traffic 2->78 80 Malicious sample detected (through community Yara rule) 2->80 82 Antivirus detection for dropped file 2->82 86 13 other signatures 2->86 12 4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318a.exe 1 7 2->12         started        17 e6d6.bat 4 2->17         started        signatures3 84 Uses dynamic DNS services 56->84 process4 dnsIp5 62 homelog2002.dynuddns.com 157.20.182.18, 1990, 2002, 49690 FCNUniversityPublicCorporationOsakaJP unknown 12->62 50 C:\Users\user\AppData\Roaming\...\e6d6.bat, PE32 12->50 dropped 52 C:\Users\user\...\e6d6.bat:Zone.Identifier, ASCII 12->52 dropped 54 C:\Users\user\AppData\Local\Temp\pnaysv.bat, ASCII 12->54 dropped 92 Drops script or batch files to the startup folder 12->92 94 Drops PE files to the startup folder 12->94 19 cmd.exe 1 12->19         started        22 conhost.exe 12->22         started        24 conhost.exe 17->24         started        file6 signatures7 process8 signatures9 88 Suspicious powershell command line found 19->88 90 Bypasses PowerShell execution policy 19->90 26 cmd.exe 1 19->26         started        28 conhost.exe 19->28         started        process10 process11 30 cmd.exe 2 26->30         started        signatures12 96 Suspicious powershell command line found 30->96 33 powershell.exe 1 29 30->33         started        36 conhost.exe 30->36         started        process13 signatures14 70 Tries to steal Mail credentials (via file / registry access) 33->70 72 Tries to harvest and steal browser information (history, passwords, etc) 33->72 74 Writes to foreign memory regions 33->74 76 4 other signatures 33->76 38 chrome.exe 1 33->38         started        41 chrome.exe 33->41 injected 43 chrome.exe 33->43 injected 45 5 other processes 33->45 process15 dnsIp16 60 192.168.2.5, 138, 1990, 2002 unknown unknown 38->60 47 chrome.exe 38->47         started        process17 dnsIp18 64 www.google.com 142.250.69.164, 443, 49698, 49701 GOOGLEUS United States 47->64 66 plus.l.google.com 142.250.73.110, 443, 49718 GOOGLEUS United States 47->66 68 5 other IPs or domains 47->68
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
Verdict:
inconclusive
YARA:
9 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.46 Win 32 Exe x86
Link:
https://app.malva.re/file/6a9fa1e5afe6f5ca41c306a6b64d2507
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed/
Verdict:
Malicious
Threat:
Family.ASYNCRAT
Link:
https://tip.neiki.dev/file/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
Threat name:
ByteCode-MSIL.Backdoor.Asyncrat
Create hunting rule
Status:
Malicious
First seen:
2025-11-02 15:35:33 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmmkrp3xjnahj7znbtev63ie3xvi7qhhmmmkxdzzttqz7chjkdwq._file
Verdict:
malicious
Label(s):
asyncrat
Create hunting rule
Similar samples:
error
PureLogsStealer
Result
Malware family:
asyncrat
Create hunting rule
Score:
  10/10
Tags:
family:asyncrat botnet:lnk_empty_last collection discovery execution rat spyware stealer
Link:
https://tria.ge/reports/251102-ya3htscl7t/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Browser Information Discovery
Enumerates physical storage devices
Drops file in Windows directory
Accesses Microsoft Outlook profiles
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Drops startup file
Reads user/profile data of web browsers
Badlisted process makes network request
Async RAT payload
AsyncRat
Asyncrat family
Malware Config
C2 Extraction:
nopirate1990.dynuddns.net:1990
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9c0d75c5-2450-4e75-87e5-7043da29dcad
Unpacked files
SH256 hash:
4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
MD5 hash:
6a9fa1e5afe6f5ca41c306a6b64d2507
SHA1 hash:
5d9b7b947466041a7010496cedcee83d8e9878f1
Link:
https://www.unpac.me/results/4ccb73e7-2a32-446a-b29e-4875066f4ab9/
SH256 hash:
19738529a0e8634d5a32cd0fe8c58f900f99fa9622164c54fc56b9f4d088d0a3
MD5 hash:
974e8224bf2770c1f7fe9ab2b0166a6a
SHA1 hash:
0f51e5803469429795cd15a5ac3446da91c8fed5
Detections:
win_asyncrat_w0
Create hunting rule
AsyncRAT
Create hunting rule
asyncrat
Create hunting rule
win_asyncrat_bytecodes
Create hunting rule
win_asyncrat_unobfuscated
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_ASEP_REG_Reverse
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs
Create hunting rule
Link:
https://www.unpac.me/results/4ccb73e7-2a32-446a-b29e-4875066f4ab9/
Parent samples :
19738529a0e8634d5a32cd0fe8c58f900f99fa9622164c54fc56b9f4d088d0a3
4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed
Malware family:
AsyncRAT
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4b18a8bf774b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.77
Link:
https://yomi.yoroi.company/submissions/4b18a8bf774b4074ff2d0cc95f6d04ddea8fc0e76318ab8f399ce19f88e950ed

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: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
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/35029/

Comments