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

Malware Config

Extracted

Family

oski

C2

kckark.xyz

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Oski family
oski

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2604 set thread context of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2696	2704	WerFault.exe	32

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 1 IoCs

pid	Process
2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2860	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	31
PID 2604 wrote to memory of 2860	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	31
PID 2604 wrote to memory of 2860	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	31
PID 2604 wrote to memory of 2860	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	31
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2604 wrote to memory of 2704	2604	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	32
PID 2704 wrote to memory of 2696	2704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	33
PID 2704 wrote to memory of 2696	2704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	33
PID 2704 wrote to memory of 2696	2704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	33
PID 2704 wrote to memory of 2696	2704	7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe	33

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:2604
- C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\7f05dc92a62ddd277baaeb55ebcfa407_JaffaCakes118.exe"
  2⤵
  PID:2860
- 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
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2704 -s 112
    3⤵
    - Program crash
    PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2604-19-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-1-0x00000000011F0000-0x00000000012D2000-memory.dmp

Filesize
904KB

Download
memory/2604-2-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-3-0x0000000000540000-0x0000000000556000-memory.dmp

Filesize
88KB

Download
memory/2604-4-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2604-5-0x00000000741F0000-0x00000000748DE000-memory.dmp

Filesize
6.9MB

Download
memory/2604-6-0x0000000005FE0000-0x000000000607E000-memory.dmp

Filesize
632KB

Download
memory/2604-7-0x00000000007C0000-0x00000000007F8000-memory.dmp

Filesize
224KB

Download
memory/2604-0-0x00000000741FE000-0x00000000741FF000-memory.dmp

Filesize
4KB

Download
memory/2704-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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