oski | e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed

General

Target

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
Size

416KB
MD5

4b4b842e67389dbaa6756b528c317370
SHA1

344abedefc91910c9feaa05c18714b067525e555
SHA256

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed
SHA512

ac773f956aaccc2d0ede13ae2814f29c2b259d59a8a9a66ea761595a47c0c162f0b457d79ac1775050a21bc00486c08d1a52b179d8ff9b61b116e3b5e5e01e06
SSDEEP

6144:pb+QWIhV2WPguI87PQOB3xbkuZanpNh2w75aqfyjL6KSgDoaC/MtStAr5ijt+g2U:AQnrw7AqfcLTSgEEVijNsED

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

maurizio.ug

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Oski family
oski
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 1 IoCs

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	pid	Process	procid_target
PID 2160 set thread context of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2444	2892	WerFault.exe	34

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exepowershell.exee9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exee9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

pid	Process
1848	powershell.exe
2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exee9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	pid	Process
Token: SeDebugPrivilege	1848	powershell.exe
Token: SeDebugPrivilege	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exee9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe

description	pid	Process	procid_target
PID 2160 wrote to memory of 1848	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	31
PID 2160 wrote to memory of 1848	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	31
PID 2160 wrote to memory of 1848	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	31
PID 2160 wrote to memory of 1848	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	31
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2160 wrote to memory of 2892	2160	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	34
PID 2892 wrote to memory of 2444	2892	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	37
PID 2892 wrote to memory of 2444	2892	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	37
PID 2892 wrote to memory of 2444	2892	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	37
PID 2892 wrote to memory of 2444	2892	e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe	37

C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
"C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2160
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1848
- C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
  C:\Users\Admin\AppData\Local\Temp\e9c2ae76f3c75635d6588866674757023c2dabd947abe8864cfbd155cf22e7ed.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2892 -s 772
    3⤵
    - Program crash
    PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1848-4-0x0000000002550000-0x0000000002590000-memory.dmp

Filesize
256KB

Download
memory/2160-8-0x0000000004390000-0x00000000043B8000-memory.dmp

Filesize
160KB

Download
memory/2160-1-0x0000000000D00000-0x0000000000D6C000-memory.dmp

Filesize
432KB

Download
memory/2160-5-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2160-6-0x0000000000B10000-0x0000000000B56000-memory.dmp

Filesize
280KB

Download
memory/2160-7-0x0000000004C10000-0x0000000004C50000-memory.dmp

Filesize
256KB

Download
memory/2160-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/2892-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-9-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-15-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-13-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-11-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-20-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2892-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-21-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads