MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 25372a9d5205bae496a358c0d33c9f4f9a6e4f3daa00e693cc1df5721c8227fb. 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: 11
| SHA256 hash: | 25372a9d5205bae496a358c0d33c9f4f9a6e4f3daa00e693cc1df5721c8227fb |
|---|---|
| SHA3-384 hash: | 3c05df3a6a38c1f5abaa7d493957c4dad64c323169b4ac51a7dc8c15ef776b82d0bcc41a916be1cb974cc5a2b62fa173 |
| SHA1 hash: | 3ad53e77b2e958badfc71f9f5c85cc37c350bb54 |
| MD5 hash: | a649ba11481176b0d9249907c8526d7c |
| humanhash: | paris-montana-happy-berlin |
| File name: | PT33206115.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 958'264 bytes |
| First seen: | 2021-04-27 10:35:37 UTC |
| Last seen: | 2021-04-27 12:00:13 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 12288:0wThatC66e77b/bDtybNxFxhPRGeLByjfjuGEN:dTha0e3/bwNphPRPLByjfS |
| Threatray | 1'056 similar samples on MalwareBazaar |
| TLSH | 2E15F4247FEF6A55C6ADDB35A43C750643E1AC05AA6BD36FA4C0A2A53D62FC00D0076F |
| Reporter |  abuse_ch |
| 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://5azc.xyz/6.jpg | https://threatfox.abuse.ch/ioc/10115/ |
| http://5azc.xyz/1.jpg | https://threatfox.abuse.ch/ioc/10116/ |
| http://5azc.xyz/2.jpg | https://threatfox.abuse.ch/ioc/10117/ |
| http://5azc.xyz/3.jpg | https://threatfox.abuse.ch/ioc/10118/ |
| http://5azc.xyz/4.jpg | https://threatfox.abuse.ch/ioc/10119/ |
| http://5azc.xyz/5.jpg | https://threatfox.abuse.ch/ioc/10120/ |
| http://5azc.xyz/7.jpg | https://threatfox.abuse.ch/ioc/10121/ |
Intelligence
File Origin
# of uploads :
3
# of downloads :
119
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PT33206115.exe
Verdict:
Suspicious activity
Analysis date:
2021-04-27 10:39:33 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
DNS request
Deleting a recently created file
Replacing files
Running batch commands
Creating a process with a hidden window
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Connection attempt to an infection source
Launching a tool to kill processes
Enabling autorun by creating a file
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.
Result
Threat name:
Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Creates an undocumented autostart registry key
Downloads files with wrong headers with respect to MIME Content-Type
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Multi AV Scanner detection for submitted file
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
Writes to foreign memory regions
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.SpyEye
Status:
Malicious
First seen:
2021-04-27 10:36:21 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 1'046 additional samples on MalwareBazaar
Result
Malware family:
oski
Score:
10/10
Tags:
family:oski discovery infostealer spyware stealer
Behaviour
Checks processor information in registry
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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
Unpacked files
SH256 hash:
1c0436c756ab832abb43c0e1448c5c7bad814911d14b7bd5c2d1be4762a7e6f6
MD5 hash:
b9df4e0c6a9d5f0231be3c8ed0060f54
SHA1 hash:
7d856514947ba7e751840c2c424498c68d95abe7
SH256 hash:
11b21a35d0dcdf39cd34458455f6f6668dc6d57379b1385a2c402e840e131d5f
MD5 hash:
82fa4787f4bf874ca08f365aaf796f81
SHA1 hash:
76f8d7004dadc7a65198a775ddf53b2c6ee4800d
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
962a23a75385cd63f9758b9e2bb6ba0bdd665e67c7b9719279eb01774ad79438
MD5 hash:
60f773f435be07e90adb51afb596d330
SHA1 hash:
3c9b6d1528c257cbfcdb9c4854dc7cdbadd8cfb4
SH256 hash:
bd1872f185109a16b44abc9aa7f6ca6b0af5f08cfd4e8cf9cd1bd68173b3ab75
MD5 hash:
cb9619726775600d391376aea52a63d7
SHA1 hash:
0625f6cd1535dadc05236c86722afc5e4571eeb7
SH256 hash:
25372a9d5205bae496a358c0d33c9f4f9a6e4f3daa00e693cc1df5721c8227fb
MD5 hash:
a649ba11481176b0d9249907c8526d7c
SHA1 hash:
3ad53e77b2e958badfc71f9f5c85cc37c350bb54
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: | dsc |
|---|---|
| Author: | Aaron DeVera |
| Description: | Discord domains |
| Rule name: | INDICATOR_KB_CERT_04f131322cc31d92c849fca351d2f141 |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables signed with stolen, revoked or invalid certificates |
| Rule name: | MALWARE_Win_Vidar |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Vidar / ArkeiStealer |
| Rule name: | Vidar |
|---|---|
| Author: | kevoreilly |
| Description: | Vidar Payload |
| Rule name: | win_oski_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | autogenerated rule brought to you by yara-signator |
| Rule name: | win_oski_g0 |
|---|---|
| Author: | Slavo Greminger, SWITCH-CERT |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Comments
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
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0) [B0023] Execution::Install Additional Program