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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14
SHA3-384 hash: 48b9adcc1922c3f592d614356549bc7951b2497be87fadccb23583efafd15f6a46d00e45a8a571905ff873bab26bbd39
SHA1 hash: 76a4c0fa07dd8ead22c81a55f9db8c6147de267d
MD5 hash: bbd29a72b549f4cab5e9442d1983f29c
humanhash: purple-helium-cup-high
File name:RFQ_Acquire-GT_07Oct2026.js
Download: download sample
Signature PureLogsStealer
Create hunting rule
File size:1'507'379 bytes
First seen:2026-10-07 04:04:09 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:8UhO0yGxrOR1ereLdek9+VkfPt9xwbLj9QvS8qIdkC46lHHy4ZkW:kHGhxxA+VIajDlAdDL
TLSH T14265228915065B5918AC07192F5F2E6461FCD8B40ACDC28BD6A9FBF3739CE81C5F2C86
Magika txt
Reporter threatcat_ch
Tags:js PureLogsStealer

Intelligence

File Origin
# of uploads :
1
# of downloads :
195
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
attrib evasive obfuscated powershell repaired
Link:
https://www.filescan.io/uploads/6ac5c4c4d4ebc2036685d3f4/reports/12d41210-6c39-46a6-84e4-66c4325e8466/overview
Verdict:
Malicious
Labled as:
JS/Obfuscated.CT trojan
Link:
https://www.hybrid-analysis.com/sample/ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14
Verdict:
Malicious
File Type:
js
First seen:
2026-10-07T00:05:00Z UTC
Last seen:
2026-10-09T02:24:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1983341
Signature
Creates a thread in another existing process (thread injection)
Found suspicious powershell code related to unpacking or dynamic code loading
Hijacks the control flow in another process
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
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)
Unusual module load detection (module proxying)
Uses attrib.exe to hide files
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1983341 Sample: RFQ_Acquire-GT_07Oct2026.js Startdate: 07/10/2026 Architecture: WINDOWS Score: 100 65 pki-goog.l.google.com 2->65 67 c.pki.goog 2->67 89 Malicious sample detected (through community Yara rule) 2->89 91 Multi AV Scanner detection for submitted file 2->91 93 Yara detected Powershell decode and execute 2->93 95 2 other signatures 2->95 12 wscript.exe 1 1 2->12         started        15 svchost.exe 2->15         started        signatures3 process4 dnsIp5 105 JScript performs obfuscated calls to suspicious functions 12->105 107 Wscript starts Powershell (via cmd or directly) 12->107 109 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->109 111 2 other signatures 12->111 18 cmd.exe 1 12->18         started        21 powershell.exe 8 12->21         started        73 127.0.0.1 unknown unknown 15->73 signatures6 process7 file8 75 Wscript starts Powershell (via cmd or directly) 18->75 77 Uses attrib.exe to hide files 18->77 24 powershell.exe 18->24         started        26 powershell.exe 15 18->26         started        28 conhost.exe 18->28         started        30 attrib.exe 18->30         started        57 C:\Users\user\AppData\...\113712507552985.cmd, ASCII 21->57 dropped 79 Found suspicious powershell code related to unpacking or dynamic code loading 21->79 32 conhost.exe 21->32         started        signatures9 process10 process11 34 powershell.exe 26 24->34         started        signatures12 81 Hijacks the control flow in another process 34->81 83 Writes to foreign memory regions 34->83 85 Maps a DLL or memory area into another process 34->85 87 Queues an APC in another process (thread injection) 34->87 37 choice.exe 34->37         started        41 conhost.exe 34->41         started        process13 dnsIp14 69 89.106.83.137, 4242, 49723, 49725 HOSTERAM Germany 37->69 97 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 37->97 99 Tries to steal Mail credentials (via file / registry access) 37->99 101 Tries to harvest and steal browser information (history, passwords, etc) 37->101 103 5 other signatures 37->103 43 chrome.exe 37->43         started        46 conhost.exe 37->46         started        signatures15 process16 dnsIp17 71 192.168.2.7, 138, 4242, 443 unknown unknown 43->71 48 chrome.exe 43->48         started        51 chrome.exe 43->51 injected 53 chrome.exe 43->53 injected 55 5 other processes 43->55 process18 dnsIp19 59 googlehosted.l.googleusercontent.com 142.250.65.65, 443, 49745 GOOGLE-GoogleLLCUS United States 48->59 61 www.google.com 142.251.156.119, 443, 49730, 49731 GOOGLE-GoogleLLCUS United States 48->61 63 5 other IPs or domains 48->63
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14
Verdict:
inconclusive
YARA:
1 match(es)
Tags:
PowerShell T1059.001
Link:
https://app.malva.re/file/bbd29a72b549f4cab5e9442d1983f29c
Detection:
purelogs
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14/
Threat name:
Script-JS.Trojan.PureLogsStealer
Create hunting rule
Status:
Malicious
First seen:
2026-10-07 03:21:15 UTC
File Type:
Text (Batch)
AV detection:
13 of 38 (34.21%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=54l3ubfu6qflqdcg3er2ijj3kyrwvfhsvkcewzcwmkxbz37pz4ka._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection defense_evasion discovery execution privilege_escalation
Link:
https://tria.ge/reports/261007-em2yaa1zfv/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Views/modifies file attributes
outlook_office_path
outlook_win_path
Browser Information Discovery
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Time Discovery
Hide Artifacts: Hidden Files and Directories
Accesses Microsoft Outlook profiles
Enumerates connected drives
Checks computer location settings
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/ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14

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: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.

Malspam

PureLogsStealer

Java Script (JS) js ef17ba04b4f40ab80c46d923a4253b56236a94f2aa844b645662ae1cefefcf14

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments