MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c17243e46ff224631e589c55642c3666e5c560715841e8b8ebdd511cb70da8dd. 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: 12
| SHA256 hash: | c17243e46ff224631e589c55642c3666e5c560715841e8b8ebdd511cb70da8dd |
|---|---|
| SHA3-384 hash: | 30d0750050f900882e4de55fec3b2f115074388b4253b5b360fb562a5ff08efca1ba32c721ddc4bd7024834150d1e014 |
| SHA1 hash: | a4bb6e1e09621536559355cecdb3409f9b7d3ebe |
| MD5 hash: | e029f21834d5ceea1006d1658768f4dc |
| humanhash: | solar-nebraska-leopard-purple |
| File name: | e029f21834d5ceea1006d1658768f4dc |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 526'336 bytes |
| First seen: | 2021-10-19 09:52:22 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger) |
| ssdeep | 12288:jIJFd3ilGzEUHt61r+Rnk3GWBdWaj/7+JZvH4r+:edxqKeWGR7+XvN |
| Threatray | 3'975 similar samples on MalwareBazaar |
| TLSH | T17AB4E1057950DD5FC88A4F3684385C324B22A9674316F2836DD73ECF7D9D7868A0A3AB |
| Reporter |  zbetcheckin |
| Tags: | 32 exe OskiStealer |
Intelligence
File Origin
# of uploads :
1
# of downloads :
175
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Vidar
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Verdict:
UNKNOWN
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:
Oski Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Downloads files with wrong headers with respect to MIME Content-Type
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Performs DNS queries to domains with low reputation
Posts data to a JPG file (protocol mismatch)
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)
Tries to steal Crypto Currency Wallets
Yara detected AntiVM3
Yara detected Oski Stealer
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-19 09:53:08 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 3'965 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Suspicious use of WriteProcessMemory
Checks processor information in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Oski
Malware Config
C2 Extraction:
stanelectronics.xyz
Unpacked files
SH256 hash:
245306c0b82d254688e24dc5e7310195e54577b10889f1eff11bc250295e79a8
MD5 hash:
66c61554814e813794855cb767681304
SHA1 hash:
bf33fa9424894ec356676dc04bc4569cfb313d80
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
SH256 hash:
7ff89ef7a249f73aa5386d36c88a41f6250099274ae23e84daec1a60900cb879
MD5 hash:
7cf73cbca63b8e9210cc4f4eb81af57e
SHA1 hash:
2dc413c06966f2ba045140239998e450253a739c
SH256 hash:
c17243e46ff224631e589c55642c3666e5c560715841e8b8ebdd511cb70da8dd
MD5 hash:
e029f21834d5ceea1006d1658768f4dc
SHA1 hash:
a4bb6e1e09621536559355cecdb3409f9b7d3ebe
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
vidar
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: | 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.
Web download
Delivery method
Distributed via web download
Comments
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