MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 de4f644a7b3c3248eff98dab022224f128f071a136b4c09eef7a54a0c11fbed3. 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: | de4f644a7b3c3248eff98dab022224f128f071a136b4c09eef7a54a0c11fbed3 |
|---|---|
| SHA3-384 hash: | a19cb1e650f30dce3754a0b1487e5a879a1f7a3db2a9bf9396b0a285f742bb53030fe28d4b4f98d889b2851a67cd71f3 |
| SHA1 hash: | 33bb407776f08e598891f72eb35fe206db2f0cfb |
| MD5 hash: | 70d95963a777564010067ad7fdb9eef5 |
| humanhash: | mango-sierra-steak-spring |
| File name: | Payment_Advice.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 685'056 bytes |
| First seen: | 2022-05-09 08:26:31 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'238 x SnakeKeylogger) |
| ssdeep | 12288:x+AGibRlF0aSiUlb2I3C4xEgcRPp1IPNVDA2iNnc17seNbeqtipCWRSFbylQ9voT:JbRlH7CbhC/1RPLwM1RcQ |
| Threatray | 1'970 similar samples on MalwareBazaar |
| TLSH | T1BCE418AC365C31DEC857C972CAA81C64EA6074BF7B1B92039063159D9E1EB97DF240F2 |
| TrID | 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.4% (.EXE) Win64 Executable (generic) (10523/12/4) 6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.4% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.EXE) OS/2 Executable (generic) (2029/13) |
| Reporter |  adrian__luca |
| Tags: | exe OskiStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
oski
ID:
1
File name:
Payment_Advice.exe
Verdict:
Malicious activity
Analysis date:
2022-05-09 08:54:17 UTC
Tags:
oski
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
DNS request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
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.
Verdict:
Malicious
Result
Threat name:
Oski Stealer, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.CrypterX
Status:
Malicious
First seen:
2022-05-09 08:27:21 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 26 (76.92%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 1'960 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski infostealer spyware stealer
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Oski
Malware Config
C2 Extraction:
st4q2p.xyz
Unpacked files
SH256 hash:
562529b4ca737b6b664703bdaa72e8ba88ded7e849c5695b5d66fa8f4b4b995c
MD5 hash:
8e075938bbd25a3c76aeb5e745732a78
SHA1 hash:
f0de222fbdf0f2baace920fddf3a284552793ecf
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
6a5337e86e8156c98a856e55d59e53ca6c79f7d4808018f6ced3c798df18cb84
MD5 hash:
e1bbc634183cb98af28bf738309110d6
SHA1 hash:
8e56e81a68099b9388b4276af9dfba154b9f275a
SH256 hash:
79823e47436e129def4fba8ee225347a05b7bb27477fb1cc8be6dc9e9ce75696
MD5 hash:
39f524c1ab0eb76dfd79b2852e5e8c39
SHA1 hash:
428018e1701006744e34480b0029982a76d8a57d
SH256 hash:
de4f644a7b3c3248eff98dab022224f128f071a136b4c09eef7a54a0c11fbed3
MD5 hash:
70d95963a777564010067ad7fdb9eef5
SHA1 hash:
33bb407776f08e598891f72eb35fe206db2f0cfb
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: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
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
Comments
Login required
You need to login to in order to write a comment. Login with your abuse.ch account.