oski | 06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289

General

Target

7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
Size

881KB
MD5

7f05dc92a62ddd277baaeb55ebcfa407
SHA1

23c8c1a1a8d16180980f4b38a47832738f947141
SHA256

06c8a1e6544aede327bad32a5732d5bcfff143da73da01d34938efbe917e3289
SHA512

3cf46fbbf2e197b15fff65b3250f05add05537e534371ee50c8f0fe6524d4d32717d25ec79c60b8ebd1ed34b99d36522202834ac927fe3e1be5abb7c298768ef
SSDEEP

12288:oplvxon3qGaNHEyC9/oR9gy5ZHK7z1S6TNCTm9H1tVwH9gd0pod3zBts7Vl+YJtm:dPp9AR95SbTIg1Bd4od0+YzR0xz6KV

Score

10^/10

oski discovery infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

kckark.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 1704 set thread context of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105

Program crash 1 IoCs

pid	pid_target	Process	procid_target
452	5012	WerFault.exe	105

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	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 4168	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	103
PID 1704 wrote to memory of 4168	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	103
PID 1704 wrote to memory of 4168	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	103
PID 1704 wrote to memory of 4644	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	104
PID 1704 wrote to memory of 4644	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	104
PID 1704 wrote to memory of 4644	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	104
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105
PID 1704 wrote to memory of 5012	1704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	105

C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe"
  2⤵
  PID:4168
- C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe"
  2⤵
  PID:4644
- C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5012
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 1340
    3⤵
    - Program crash
    PID:452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5012 -ip 5012
1⤵
PID:4960

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/1704-8-0x0000000008400000-0x0000000008416000-memory.dmp

Filesize
88KB

Download
memory/1704-7-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/1704-0-0x000000007478E000-0x000000007478F000-memory.dmp

Filesize
4KB

Download
memory/1704-3-0x0000000005D30000-0x00000000062D4000-memory.dmp

Filesize
5.6MB

Download
memory/1704-4-0x0000000005780000-0x0000000005812000-memory.dmp

Filesize
584KB

Download
memory/1704-5-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/1704-6-0x0000000005A20000-0x0000000005A76000-memory.dmp

Filesize
344KB

Download
memory/1704-18-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/1704-2-0x00000000056E0000-0x000000000577C000-memory.dmp

Filesize
624KB

Download
memory/1704-1-0x0000000000C30000-0x0000000000D12000-memory.dmp

Filesize
904KB

Download
memory/1704-11-0x0000000008500000-0x000000000859E000-memory.dmp

Filesize
632KB

Download
memory/1704-10-0x0000000074780000-0x0000000074F30000-memory.dmp

Filesize
7.7MB

Download
memory/1704-12-0x000000000ACB0000-0x000000000ACE8000-memory.dmp

Filesize
224KB

Download
memory/1704-9-0x000000007478E000-0x000000007478F000-memory.dmp

Filesize
4KB

Download
memory/5012-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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