MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61. 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


Amatera


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61
SHA3-384 hash: adb6bbc8bf9f1cde7203a4a775799c37e276a2acf418bbeaba0f4b614a54edda139357101108e32e48f98b30efa44bc7
SHA1 hash: 3d3ad5917aea88c25bde04c1778f653dd1de8b1a
MD5 hash: 256ae0a62a34572144bea4a80952cf38
humanhash: colorado-uranus-california-louisiana
File name:OST_Walker.ps1
Download: download sample
Signature Amatera
Create hunting rule
File size:4'253 bytes
First seen:2025-12-22 21:12:18 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 96:aWIu83kALQuPLQLKIAoJIPjIX2N7mFsH/0zJ:xs3poERADWH/U
TLSH T1CC916216EDC71C9A8393EEA3C1E3D318BFA4445C9107DEC9B57C8281A662E691389F1D
Magika powershell
Reporter aachum
Tags:Amatera dropped-by-ACRStealer indeanapolice-cc ps1


Avatar
iamaachum
https://indeanapolice.cc/OST_Walker.pdf

Intelligence

File Origin
# of uploads :
1
# of downloads :
48
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Verdict:
Clean
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6949b3981f45795757237e81
Tags:
n/a
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm base64 fingerprint lolbin mshta obfuscated
Link:
https://www.filescan.io/uploads/6949b46ce126b9ff438d2191/reports/b5ae87f4-d61c-4e88-8f48-84dde11403f2/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61
Verdict:
Malicious
File Type:
unix shell
First seen:
2025-12-22T18:19:00Z UTC
Last seen:
2025-12-24T11:58:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
68 / 100
Link:
https://www.joesandbox.com/analysis/1837895
Signature
AI detected malicious Powershell script
Joe Sandbox ML detected suspicious sample
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Sigma detected: Potentially Suspicious PowerShell Child Processes
Suricata IDS alerts for network traffic
Writes or reads registry keys via WMI
Behaviour
Behavior Graph:
Download SVG
Score:
93%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61
Threat name:
Script-PowerShell.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-12-22 21:13:18 UTC
File Type:
Text (PowerShell)
AV detection:
2 of 24 (8.33%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vab62wiyiotmqxc7cidvm3xkfr5tiusdvbqt5n5clcqjrishhnqq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution persistence
Link:
https://tria.ge/reports/251222-z2bpvstrgt/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Command and Scripting Interpreter: PowerShell
Badlisted process makes network request
Malware Config
Dropper Extraction:
https://indeanapolice.cc
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/a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61

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:detect_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
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)
Rule name:WIN_ClickFix_Detection
Create hunting rule
Author:dogsafetyforeverone
Description:Detects ClickFix social engineering technique using 'Verify you are human' messages and malicious PowerShell commands
Reference:ClickFix social engineering and malicious PowerShell commands

File information

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

Web download

Amatera

PowerShell (PS) ps1 a803ed591843a6c85c5f1207566eea2c7b345243a8613eb7a258a098a2473b61

(this sample)

HTML Application (hta) hta 8e4a2ec56ea451c863939ccb9d16d8498dec989c5e8f0bc313f7f76f82d6c9b7

  
Link
https://tria.ge/251222-zx6pfatphz/behavioral2
  
Dropped by
ACRStealer
  
Delivery method
Distributed via web download
  
Dropping
SHA256 8e4a2ec56ea451c863939ccb9d16d8498dec989c5e8f0bc313f7f76f82d6c9b7
  
Dropping
MD5 86b67d6afd9e7736a9761002e63952d8

Comments