oski | dd22eb456a9a1b80eb044458c761643ba2a47acbe1f98e76b0efecc9a80f4488

General

Target

SecuriteInfo.com.Mal.Generic-S.28463.8334.exe
Size

772KB
MD5

65e641e56046e02afa450a6b45becbf3
SHA1

4ff9cc7a7322fb54a9f45d6bab2c71992a729ea7
SHA256

dd22eb456a9a1b80eb044458c761643ba2a47acbe1f98e76b0efecc9a80f4488
SHA512

d8dab099d9ee4efb2df7ed21ad1c3d9290bc230cf8db75c95f7e8f3cd63b8c8b20184043012a7f08a6b90eb2b175413b23a1cb53c9de59dce0d23c3f3d2913d7

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

SecuriteInfo.com.Mal.Generic-S.28463.8334.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	SecuriteInfo.com.Mal.Generic-S.28463.8334.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	SecuriteInfo.com.Mal.Generic-S.28463.8334.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2484 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 2484 taskkill.exe

pid	process
2484	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	2484	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

SecuriteInfo.com.Mal.Generic-S.28463.8334.execmd.exe

description	pid	process	target process
PID 3980 wrote to memory of 3184	3980	SecuriteInfo.com.Mal.Generic-S.28463.8334.exe	cmd.exe
PID 3980 wrote to memory of 3184	3980	SecuriteInfo.com.Mal.Generic-S.28463.8334.exe	cmd.exe
PID 3980 wrote to memory of 3184	3980	SecuriteInfo.com.Mal.Generic-S.28463.8334.exe	cmd.exe
PID 3184 wrote to memory of 2484	3184	cmd.exe	taskkill.exe
PID 3184 wrote to memory of 2484	3184	cmd.exe	taskkill.exe
PID 3184 wrote to memory of 2484	3184	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28463.8334.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28463.8334.exe"
1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:3980

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /pid 3980 & erase C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Mal.Generic-S.28463.8334.exe & RD /S /Q C:\ProgramData\781426682111244\* & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3184

C:\Windows\SysWOW64\taskkill.exe
taskkill /pid 3980
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2484-3-0x0000000000000000-mapping.dmp

Download
memory/3184-1-0x0000000000000000-mapping.dmp

Download

Analysis

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