oski | 2e970f330612770b2d3b786690aa6dd847a0d4773cc726fdc5df1dd9338d6e07

General

Target

ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
Size

894KB
MD5

ffaa9755239587c3b4678da8afa6dd9c
SHA1

71a981250a9bac4dbb517196c86adca52a22244b
SHA256

2e970f330612770b2d3b786690aa6dd847a0d4773cc726fdc5df1dd9338d6e07
SHA512

c9651d254e4083afbfae36c3ffa4c4886607a82070fe2ff9548c2528c53c06c6552003c1d5a1ef8f97332ae139392e42ad25e94e6da37564c6b8aece558aafd6
SSDEEP

12288:phvirSme9I5UJaeutyLgiPxl6MkneDogS7qn+QHnFsVjs7YtiwS0:/Me93attKgiDt3S7ULHnhcpS

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

samsungprod.xyz

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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1240	2544	WerFault.exe	31

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/Job

T1053

pid	Process
2428	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
2692	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
Token: SeDebugPrivilege	2692	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 2692	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	28
PID 1032 wrote to memory of 2692	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	28
PID 1032 wrote to memory of 2692	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	28
PID 1032 wrote to memory of 2692	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	28
PID 1032 wrote to memory of 2428	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	30
PID 1032 wrote to memory of 2428	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	30
PID 1032 wrote to memory of 2428	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	30
PID 1032 wrote to memory of 2428	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	30
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 1032 wrote to memory of 2544	1032	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	31
PID 2544 wrote to memory of 1240	2544	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	38
PID 2544 wrote to memory of 1240	2544	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	38
PID 2544 wrote to memory of 1240	2544	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	38
PID 2544 wrote to memory of 1240	2544	ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe	38

C:\Users\Admin\AppData\Local\Temp\ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2692
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EHtyJcWGIdThwk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9EDE.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2428
- C:\Users\Admin\AppData\Local\Temp\ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\ffaa9755239587c3b4678da8afa6dd9c_JaffaCakes118.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 768
    3⤵
    - Program crash
    PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1032-29-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/1032-4-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/1032-1-0x0000000074BF0000-0x00000000752DE000-memory.dmp

Filesize
6.9MB

Download
memory/1032-3-0x0000000000410000-0x0000000000428000-memory.dmp

Filesize
96KB

Download
memory/1032-0-0x0000000001120000-0x0000000001206000-memory.dmp

Filesize
920KB

Download
memory/1032-5-0x0000000004CD0000-0x0000000004D10000-memory.dmp

Filesize
256KB

Download
memory/1032-6-0x0000000005270000-0x00000000052EE000-memory.dmp

Filesize
504KB

Download
memory/1032-2-0x0000000004CD0000-0x0000000004D10000-memory.dmp

Filesize
256KB

Download
memory/2544-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2544-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2544-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2692-30-0x000000006F060000-0x000000006F60B000-memory.dmp

Filesize
5.7MB

Download
memory/2692-32-0x0000000002AC0000-0x0000000002B00000-memory.dmp

Filesize
256KB

Download
memory/2692-31-0x0000000002AC0000-0x0000000002B00000-memory.dmp

Filesize
256KB

Download
memory/2692-33-0x000000006F060000-0x000000006F60B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads