oski | 2213c9b915e45237c418089f12469a32144e7bd18bb1a79ada1f45b861d56518

General

Target

Sample_price list_new order.exe
Size

643KB
MD5

d5ad3655ac02936e060e384f1078c7f5
SHA1

39448e2ba7f287ecf60f95589072ddcf7cdc0369
SHA256

2213c9b915e45237c418089f12469a32144e7bd18bb1a79ada1f45b861d56518
SHA512

c36d8376276a964ea818df17c9233fa75745de84d33ddd6d0e21260acd760980f106fa747f6d51d3623e1b4c329e10e48fabff8bcd97fbba57ad348bf3ccde93

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

masterwork2.co.vu

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

Sample_price list_new order.exe

description pid process target process

PID 548 set thread context of 1772 548 Sample_price list_new order.exe Sample_price list_new order.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1296 1772 WerFault.exe Sample_price list_new order.exe
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2020 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1948 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1948 powershell.exe

description	pid	process	target process
PID 548 set thread context of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe

pid	pid_target	process	target process
1296	1772	WerFault.exe	Sample_price list_new order.exe

pid	process
2020	schtasks.exe

pid	process
1948	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1948	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

Sample_price list_new order.exeSample_price list_new order.exe

description	pid	process	target process
PID 548 wrote to memory of 1948	548	Sample_price list_new order.exe	powershell.exe
PID 548 wrote to memory of 1948	548	Sample_price list_new order.exe	powershell.exe
PID 548 wrote to memory of 1948	548	Sample_price list_new order.exe	powershell.exe
PID 548 wrote to memory of 1948	548	Sample_price list_new order.exe	powershell.exe
PID 548 wrote to memory of 2020	548	Sample_price list_new order.exe	schtasks.exe
PID 548 wrote to memory of 2020	548	Sample_price list_new order.exe	schtasks.exe
PID 548 wrote to memory of 2020	548	Sample_price list_new order.exe	schtasks.exe
PID 548 wrote to memory of 2020	548	Sample_price list_new order.exe	schtasks.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 548 wrote to memory of 1772	548	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 1772 wrote to memory of 1296	1772	Sample_price list_new order.exe	WerFault.exe
PID 1772 wrote to memory of 1296	1772	Sample_price list_new order.exe	WerFault.exe
PID 1772 wrote to memory of 1296	1772	Sample_price list_new order.exe	WerFault.exe
PID 1772 wrote to memory of 1296	1772	Sample_price list_new order.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Sample_price list_new order.exe
"C:\Users\Admin\AppData\Local\Temp\Sample_price list_new order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:548

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mloRUbz.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1948

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mloRUbz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4B63.tmp"
2⤵
- Creates scheduled task(s)
PID:2020

C:\Users\Admin\AppData\Local\Temp\Sample_price list_new order.exe
"C:\Users\Admin\AppData\Local\Temp\Sample_price list_new order.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:1772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1772 -s 784
3⤵
- Program crash
PID:1296

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4B63.tmp
Filesize
1KB

MD5
89a9d1b693fcb98f4e69badeb5f18795

SHA1
113f8998ff37b8c2dc0fd7c7a14d1fa5d2bdeaac

SHA256
73668e8f0a63e26479c5bd0168cca6f2aa8b036eed55839b82fb873938957f73

SHA512
fbf8ec0fc77b86c8341b182104ddf491a521d155dc5397542d67278457e1b087eb380015852bcf3e0eb8d6d92af6b702d2480c21f8c96f1f9c39d548301d694e

Download Submit
memory/548-63-0x00000000050E0000-0x0000000005118000-memory.dmp

Filesize
224KB

Download
memory/548-55-0x0000000075D21000-0x0000000075D23000-memory.dmp

Filesize
8KB

Download
memory/548-56-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/548-57-0x00000000051F0000-0x0000000005284000-memory.dmp

Filesize
592KB

Download
memory/548-54-0x00000000010F0000-0x0000000001198000-memory.dmp

Filesize
672KB

Download
memory/548-62-0x0000000000E90000-0x0000000000E96000-memory.dmp

Filesize
24KB

Download
memory/1296-81-0x0000000000000000-mapping.dmp

Download
memory/1772-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-74-0x000000000040717B-mapping.dmp

Download
memory/1772-76-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1772-78-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1948-79-0x000000006EDC0000-0x000000006F36B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-80-0x000000006EDC0000-0x000000006F36B000-memory.dmp

Filesize
5.7MB

Download
memory/1948-58-0x0000000000000000-mapping.dmp

Download
memory/2020-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads