MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 19c9f9cbfe761001bd796973fb4f72e35175e477b7d5677b2e15ec7d223e5834. 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: 13
| SHA256 hash: | 19c9f9cbfe761001bd796973fb4f72e35175e477b7d5677b2e15ec7d223e5834 |
|---|---|
| SHA3-384 hash: | 9ceada687208da4db5f9a73d702ad9decde632f969de4b833814eee099f6b04fa3150a6a827aa14522036e328334143f |
| SHA1 hash: | 01a9487c037ab9e32709355254932e881d3cc444 |
| MD5 hash: | dccb52f53448142fab5718a6bd7e5a6b |
| humanhash: | lithium-xray-sixteen-ten |
| File name: | delphi.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 246'272 bytes |
| First seen: | 2022-08-01 11:10:49 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 9f4693fc0c511135129493f2161d1e86 (250 x Neshta, 15 x Formbook, 14 x AgentTesla) |
| ssdeep | 3072:sr85CSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIm1Xi6FLPo3cvfUomEuYm98h:k9SSWCx+XA7mg2pNT1Ljo3cvfUauY68h |
| Threatray | 4'561 similar samples on MalwareBazaar |
| TLSH | T15E347D31BA90C031E86310BCDDAE82BEB96C7A301F5950D3A3D44A696F712F27E35657 |
| TrID | 92.2% (.EXE) Win32 Executable Borland Delphi 6 (262638/61) 2.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 1.5% (.EXE) Win32 Executable (generic) (4505/5/1) 1.0% (.MZP) WinArchiver Mountable compressed Archive (3000/1) 0.7% (.EXE) Win16/32 Executable Delphi generic (2072/23) |
| Reporter |  0xToxin |
| Tags: | exe OskiStealer |
Indicators Of Compromise (IOCs)
Below is a list of indicators of compromise (IOCs) associated with this malware samples.
| IOC | ThreatFox Reference |
|---|---|
| http://cybersd.axfree.com/6.jpg | https://threatfox.abuse.ch/ioc/840926/ |
| http://cybersd.axfree.com/4.jpg | https://threatfox.abuse.ch/ioc/840927/ |
| http://cybersd.axfree.com/1.jpg | https://threatfox.abuse.ch/ioc/840928/ |
| http://cybersd.axfree.com/5.jpg | https://threatfox.abuse.ch/ioc/840929/ |
| http://cybersd.axfree.com/2.jpg | https://threatfox.abuse.ch/ioc/840930/ |
| http://cybersd.axfree.com/3.jpg | https://threatfox.abuse.ch/ioc/840931/ |
| http://cybersd.axfree.com/7.jpg | https://threatfox.abuse.ch/ioc/840932/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
293
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% subdirectories
Сreating synchronization primitives
Creating a file in the Windows directory
Creating a process from a recently created file
Modifying an executable file
DNS request
Creating a file
Sending a custom TCP request
Creating a file in the Program Files subdirectories
Reading critical registry keys
Creating a window
Delayed writing of the file
Creating a process with a hidden window
Running batch commands
Searching for the window
Using the Windows Management Instrumentation requests
Enabling autorun with the shell\open\command registry branches
Stealing user critical data
Launching a tool to kill processes
Infecting executable files
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
greyware neshta overlay shell32.dll virus windows winlock
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Neshta, Oski Stealer
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Creates an undocumented autostart registry key
Downloads files with wrong headers with respect to MIME Content-Type
Drops executable to a common third party application directory
Drops executables to the windows directory (C:\Windows) and starts them
Drops PE files with a suspicious file extension
Infects executable files (exe, dll, sys, html)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Posts data to a JPG file (protocol mismatch)
Sample is not signed and drops a device driver
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Yara detected Neshta
Yara detected Oski Stealer
Behaviour
Behavior Graph:
Threat name:
Win32.Virus.Neshta
Status:
Malicious
First seen:
2022-08-01 11:11:06 UTC
File Type:
PE (Exe)
Extracted files:
1
AV detection:
26 of 26 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 4'551 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:neshta family:oski discovery infostealer persistence spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Executes dropped EXE
Detect Neshta payload
Modifies system executable filetype association
Neshta
Oski
Malware Config
C2 Extraction:
cybersd.axfree.com
Unpacked files
SH256 hash:
19c9f9cbfe761001bd796973fb4f72e35175e477b7d5677b2e15ec7d223e5834
MD5 hash:
dccb52f53448142fab5718a6bd7e5a6b
SHA1 hash:
01a9487c037ab9e32709355254932e881d3cc444
Detections:
win_neshta_g0
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | MALWARE_Win_Neshta |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Neshta |
| Rule name: | MALWARE_Win_Vidar |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Vidar / ArkeiStealer |
| Rule name: | MAL_Neshta_Generic |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Neshta malware |
| Reference: | Internal Research |
| Rule name: | MAL_Neshta_Generic_RID2DC9 |
|---|---|
| Author: | Florian Roth |
| Description: | Detects Neshta malware |
| Reference: | Internal Research |
| Rule name: | Vidar |
|---|---|
| Author: | kevoreilly |
| Description: | Vidar Payload |
| Rule name: | win_oski_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.oski. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.