oski | dcea2e3f590f675b9d83f8c508bbe85ef521ed51ebfc6d3ea90cd8f0d23358c5

General

Target

JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
Size

474KB
MD5

d3fe725ae5528ff727ef50bdda39dacb
SHA1

c2109a9e3f9997330a333cbbfe4d805a045ecc19
SHA256

dcea2e3f590f675b9d83f8c508bbe85ef521ed51ebfc6d3ea90cd8f0d23358c5
SHA512

984c173a58e267fcfc57cc6fe9d429e4597364a24e8efc8fb009dccfba1f24c88a4eeb490d0e0301e26367953194e1745fbadfbfaadec379208c3de8d0f41533
SSDEEP

12288:uNw4pVGp3k46WBfg8HdBXMUopQqexinm9wgn:uNw4p0BdHdvo6x/Zn

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

stanelectronics.xyz

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

description	pid	Process	procid_target
PID 3008 set thread context of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2616	2160	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2268	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	30
PID 3008 wrote to memory of 2268	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	30
PID 3008 wrote to memory of 2268	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	30
PID 3008 wrote to memory of 2268	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	30
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 3008 wrote to memory of 2160	3008	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	31
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	33
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	33
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	33
PID 2160 wrote to memory of 2616	2160	JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe"
  2⤵
  PID:2268
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3fe725ae5528ff727ef50bdda39dacb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2160
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 828
    3⤵
    - Program crash
    PID:2616

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2160-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2160-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2160-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3008-5-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-3-0x00000000004A0000-0x00000000004AE000-memory.dmp

Filesize
56KB

Download
memory/3008-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/3008-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-6-0x0000000005160000-0x00000000051BC000-memory.dmp

Filesize
368KB

Download
memory/3008-1-0x0000000000110000-0x000000000018E000-memory.dmp

Filesize
504KB

Download
memory/3008-20-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-4-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download

Analysis

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