MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c. 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: 10
| SHA256 hash: | 37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c |
|---|---|
| SHA3-384 hash: | a8c4438b40a1f5cf262f54097adecfc07bb84d78ca27f78ec713fc3312485edc378815e8863349a0fbc6c4701ac6fe1e |
| SHA1 hash: | 970796d4c6accf205042632aab92859900a6d0d8 |
| MD5 hash: | fd0e7153869bad651ae4ae4f1dbef3da |
| humanhash: | oklahoma-pasta-triple-arizona |
| File name: | IMG0540001825.exe |
| Download: | download sample |
| Signature | OskiStealer |
| File size: | 226'104 bytes |
| First seen: | 2021-04-29 20:00:38 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger) |
| ssdeep | 3072:X/tXBuDm4Diw4GUZN7u1NPa5y7V6BRxA4J71pUofS8ypYAxBWA3VcuVdxrz80Qez:X/KbORIaQHuA36cdx8Vf1YGKz+vChG+ |
| Threatray | 1'081 similar samples on MalwareBazaar |
| TLSH | 73240202A7C4DA45DDE43A397DB6F3A08B707E40F8609A8F64C4B35BCB71B00D5AA765 |
| 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.club/6.jpg | https://threatfox.abuse.ch/ioc/25075/ |
| http://5azc.club/1.jpg | https://threatfox.abuse.ch/ioc/25076/ |
| http://5azc.club/2.jpg | https://threatfox.abuse.ch/ioc/25077/ |
| http://5azc.club/3.jpg | https://threatfox.abuse.ch/ioc/25078/ |
| http://5azc.club/4.jpg | https://threatfox.abuse.ch/ioc/25079/ |
| http://5azc.club/5.jpg | https://threatfox.abuse.ch/ioc/25080/ |
| http://5azc.club/7.jpg | https://threatfox.abuse.ch/ioc/25081/ |
Intelligence
File Origin
# of uploads :
1
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Sending a UDP request
Creating a file
Deleting a recently created file
Replacing files
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a tool to kill processes
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:
92 / 100
Signature
Creates an undocumented autostart registry key
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 dropped file
Machine Learning detection for sample
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 Vidar stealer
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Status:
Malicious
First seen:
2021-04-29 20:01:07 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Similar samples:
+ 1'071 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:
e0596e39fb361113ffc95eb466190ea54e50fd69129d4aab5c39f9828bebb996
MD5 hash:
04bcdb7d4ef4e9d876bc9b622bed4511
SHA1 hash:
f5861cea3b2b89e4863232a222962f69dbf4f960
Detections:
win_oski_g0
win_oski_auto
SH256 hash:
c0ce2cf58bbfebb58d003bb17a189e96a376b69a89242a19e34e625f32bb78ab
MD5 hash:
d1076d69ad47c02a6baeacd06b13eccd
SHA1 hash:
e08d7460fba61eba7cad811aa0aed4ce6d52efe7
SH256 hash:
c85efa2d7d156d3acd5281c3eeddff6bffa407a36ce245dbe0b6c60244ec8ad6
MD5 hash:
e1c4ee1fa3d96c17b2a02a024ca09b24
SHA1 hash:
16d7a878822f16a328d1eab099758c4bf334bd15
SH256 hash:
37f96df377557cad9bdb2caa4064bbf4dd862e935a64e1d802d445358695e15c
MD5 hash:
fd0e7153869bad651ae4ae4f1dbef3da
SHA1 hash:
970796d4c6accf205042632aab92859900a6d0d8
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
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_EXE_Packed_SmartAssembly |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables packed with SmartAssembly |
| 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.
Web download
Delivery method
Distributed via web download
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MBC behaviors list (github.com/accidentalrebel/mbcscan):
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0) [B0023] Execution::Install Additional Program