MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 9ab06dad5958032d92be8b54abfd84e4a7828df3accffca30a459ad3a87ff4ec. 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
OskiStealer
Vendor detections: 8
| SHA256 hash: | 9ab06dad5958032d92be8b54abfd84e4a7828df3accffca30a459ad3a87ff4ec |
|---|---|
| SHA3-384 hash: | 31e686974376122c0bff5469aef7de50a0c1ac8c09b848805d6e4f0cfb95991168c7d510b2e6165dd643e38e58e4e9be |
| SHA1 hash: | f577719e9b25aa48f92d2cef8a0c22390b96dc86 |
| MD5 hash: | 1b744789533dee1e231fd8d997e997eb |
| humanhash: | sierra-sierra-island-sixteen |
| File name: | Arabic letter .ppt |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 216'576 bytes |
| First seen: | 2021-07-07 09:55:17 UTC |
| Last seen: | 2021-07-07 10:44:19 UTC |
| File type: |  ppt |
| MIME type: | application/vnd.ms-powerpoint |
| ssdeep | 1536:Dz7xxUvV7CqTMaciS0BC6/FO4mKdsIHeVPbsFmKNc9nH1V:73UvV7CqTMa1SIpNE47e9j |
| TLSH | 1A2441197057C15FC6A80E354C9ADBF63B31BD029D8AA20731A47B6E7DBF640DB02687 |
| Reporter |  _Clevero |
| Tags: | ppt |
Intelligence
File Origin
# of uploads :
2
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Arabic letter .ppt
Verdict:
Malicious activity
Analysis date:
2021-07-07 09:57:37 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Malicious
File Type:
Legacy PowerPoint File with Macro
Result
Verdict:
MALICIOUS
Link:
Details
Macro with Startup Hook
Detected macro logic that will automatically execute on document open. Most malware contains some execution hook.
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad.expl
Score:
88 / 100
Signature
Creates a scheduled task launching mshta.exe (likely to bypass HIPS)
Document contains an embedded VBA with many GOTO operations indicating source code obfuscation
Document exploit detected (process start blacklist hit)
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Sigma detected: MSHTA Spawning Windows Shell
Uses schtasks.exe or at.exe to add and modify task schedules
Writes or reads registry keys via WMI
Writes registry values via WMI
Behaviour
Behavior Graph:
Threat name:
Script-Macro.Trojan.Valyria
Status:
Malicious
First seen:
2021-07-07 03:21:43 UTC
AV detection:
9 of 46 (19.57%)
Threat level:
5/5
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski infostealer macro spyware
Behaviour
Checks processor information in registry
Creates scheduled task(s)
Enumerates system info in registry
Kills process with taskkill
Modifies Internet Explorer settings
Modifies registry class
Modifies system certificate store
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Oski
Process spawned unexpected child process
Malware Config
C2 Extraction:
103.153.76.164/we/blac/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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