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 2016 set thread context of 588 2016 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

1828 588 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

984 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Sample_price list_new order.exepowershell.exe

pid process

2016 Sample_price list_new order.exe
1288 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Sample_price list_new order.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2016 Sample_price list_new order.exe
Token: SeDebugPrivilege 1288 powershell.exe

description	pid	process	target process
PID 2016 set thread context of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe

pid	pid_target	process	target process
1828	588	WerFault.exe	Sample_price list_new order.exe

pid	process
984	schtasks.exe

pid	process
2016	Sample_price list_new order.exe
1288	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2016	Sample_price list_new order.exe
Token: SeDebugPrivilege	1288	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

Sample_price list_new order.exeSample_price list_new order.exe

description	pid	process	target process
PID 2016 wrote to memory of 1288	2016	Sample_price list_new order.exe	powershell.exe
PID 2016 wrote to memory of 1288	2016	Sample_price list_new order.exe	powershell.exe
PID 2016 wrote to memory of 1288	2016	Sample_price list_new order.exe	powershell.exe
PID 2016 wrote to memory of 1288	2016	Sample_price list_new order.exe	powershell.exe
PID 2016 wrote to memory of 984	2016	Sample_price list_new order.exe	schtasks.exe
PID 2016 wrote to memory of 984	2016	Sample_price list_new order.exe	schtasks.exe
PID 2016 wrote to memory of 984	2016	Sample_price list_new order.exe	schtasks.exe
PID 2016 wrote to memory of 984	2016	Sample_price list_new order.exe	schtasks.exe
PID 2016 wrote to memory of 456	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 456	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 456	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 456	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 2016 wrote to memory of 588	2016	Sample_price list_new order.exe	Sample_price list_new order.exe
PID 588 wrote to memory of 1828	588	Sample_price list_new order.exe	WerFault.exe
PID 588 wrote to memory of 1828	588	Sample_price list_new order.exe	WerFault.exe
PID 588 wrote to memory of 1828	588	Sample_price list_new order.exe	WerFault.exe
PID 588 wrote to memory of 1828	588	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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

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:1288

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mloRUbz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp67B9.tmp"
2⤵
- Creates scheduled task(s)
PID:984

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⤵
PID:456

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:588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 588 -s 776
3⤵
- Program crash
PID:1828

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\tmp67B9.tmp
Filesize
1KB

MD5
89a9d1b693fcb98f4e69badeb5f18795

SHA1
113f8998ff37b8c2dc0fd7c7a14d1fa5d2bdeaac

SHA256
73668e8f0a63e26479c5bd0168cca6f2aa8b036eed55839b82fb873938957f73

SHA512
fbf8ec0fc77b86c8341b182104ddf491a521d155dc5397542d67278457e1b087eb380015852bcf3e0eb8d6d92af6b702d2480c21f8c96f1f9c39d548301d694e

Download Submit
memory/588-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-78-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-76-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/588-74-0x000000000040717B-mapping.dmp

Download
memory/588-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/984-60-0x0000000000000000-mapping.dmp

Download
memory/1288-58-0x0000000000000000-mapping.dmp

Download
memory/1288-79-0x000000006E920000-0x000000006EECB000-memory.dmp

Filesize
5.7MB

Download
memory/1288-80-0x000000006E920000-0x000000006EECB000-memory.dmp

Filesize
5.7MB

Download
memory/1288-81-0x000000006E920000-0x000000006EECB000-memory.dmp

Filesize
5.7MB

Download
memory/1828-82-0x0000000000000000-mapping.dmp

Download
memory/2016-57-0x0000000005770000-0x0000000005804000-memory.dmp

Filesize
592KB

Download
memory/2016-56-0x0000000000590000-0x00000000005A2000-memory.dmp

Filesize
72KB

Download
memory/2016-63-0x0000000004D20000-0x0000000004D58000-memory.dmp

Filesize
224KB

Download
memory/2016-54-0x00000000002C0000-0x0000000000368000-memory.dmp

Filesize
672KB

Download
memory/2016-62-0x0000000004B20000-0x0000000004B26000-memory.dmp

Filesize
24KB

Download
memory/2016-55-0x0000000075191000-0x0000000075193000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads