oski | 9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27

General

Target

IMG_106_680_74_80.exe
Size

381KB
MD5

e05e738dcb98a9f8c125138b492f82e5
SHA1

02f9a41a35cc4794456fbc48b8e0245e622eab69
SHA256

9b26547086a1489e5534452021694af3a565fe76926e671112be4852947a5d27
SHA512

4728be50ea680648b8dc2b739e54d2d4b4bc5a901dbd75cb8092175c5516d78696580e7804de2326fa839570e61906ccd533b140431a3ad413fde050ed5bbbd0

Score

10^/10

oski infostealer spyware stealer suricata

Malware Config

Extracted

Family

oski

C2

osiq.icu

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern
suricata
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
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 784 set thread context of 2044	784	IMG_106_680_74_80.exe	27

Program crash 1 IoCs

pid	pid_target	Process	procid_target
764	2044	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
784	IMG_106_680_74_80.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	784	IMG_106_680_74_80.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 784 wrote to memory of 2044	784	IMG_106_680_74_80.exe	27
PID 2044 wrote to memory of 764	2044	IMG_106_680_74_80.exe	30
PID 2044 wrote to memory of 764	2044	IMG_106_680_74_80.exe	30
PID 2044 wrote to memory of 764	2044	IMG_106_680_74_80.exe	30
PID 2044 wrote to memory of 764	2044	IMG_106_680_74_80.exe	30

C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
"C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:784
- C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
  C:\Users\Admin\AppData\Local\Temp\IMG_106_680_74_80.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 780
    3⤵
    - Program crash
    PID:764

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/784-54-0x0000000000DD0000-0x0000000000E32000-memory.dmp

Filesize
392KB

Download
memory/784-55-0x00000000002F0000-0x00000000002FA000-memory.dmp

Filesize
40KB

Download
memory/784-56-0x0000000000320000-0x0000000000344000-memory.dmp

Filesize
144KB

Download
memory/784-57-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/2044-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

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