oski | 10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05/03/2024, 18:10

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General

Target

b556492c8d162c4180c0c6a5c07e6abb.exe
Size

678KB
MD5

b556492c8d162c4180c0c6a5c07e6abb
SHA1

eb369158b45401422f550ca727c2b5a610bc7ab8
SHA256

10410848d808e42758883ff2045ac5b10d16ad3d4155771483f0aba1f245a6e4
SHA512

58ba5e137396a6c285033af96c01aae61983bed7cd9bb62047c554bcd63f8305f6725242851ff673d0861fe1f8a56ed8129189c652ef48799b51529dff289fec
SSDEEP

12288:NXJNqcCx+8+/iMuzbe3hO2dVy3whNMgfTNBnefBgyC5+Wyco3zzpUdv5ho:N+e/UzbEhOqVqwzxQfWcw

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

zzz.divendesign.in

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 4140 set thread context of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2232	2440	WerFault.exe	106

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4140	b556492c8d162c4180c0c6a5c07e6abb.exe
4140	b556492c8d162c4180c0c6a5c07e6abb.exe
4140	b556492c8d162c4180c0c6a5c07e6abb.exe
4140	b556492c8d162c4180c0c6a5c07e6abb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4140	b556492c8d162c4180c0c6a5c07e6abb.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 3128	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	104
PID 4140 wrote to memory of 3128	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	104
PID 4140 wrote to memory of 3128	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	104
PID 4140 wrote to memory of 4804	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	105
PID 4140 wrote to memory of 4804	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	105
PID 4140 wrote to memory of 4804	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	105
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106
PID 4140 wrote to memory of 2440	4140	b556492c8d162c4180c0c6a5c07e6abb.exe	106

C:\Users\Admin\AppData\Local\Temp\b556492c8d162c4180c0c6a5c07e6abb.exe
"C:\Users\Admin\AppData\Local\Temp\b556492c8d162c4180c0c6a5c07e6abb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Users\Admin\AppData\Local\Temp\b556492c8d162c4180c0c6a5c07e6abb.exe
  "{path}"
  2⤵
  PID:3128
- C:\Users\Admin\AppData\Local\Temp\b556492c8d162c4180c0c6a5c07e6abb.exe
  "{path}"
  2⤵
  PID:4804
- C:\Users\Admin\AppData\Local\Temp\b556492c8d162c4180c0c6a5c07e6abb.exe
  "{path}"
  2⤵
  PID:2440
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2440 -s 1284
    3⤵
    - Program crash
    PID:2232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2440 -ip 2440
1⤵
PID:3032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2440-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2440-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2440-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2440-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2440-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4140-4-0x00000000052A0000-0x00000000052B0000-memory.dmp

Filesize
64KB

Download
memory/4140-6-0x00000000064D0000-0x00000000064D8000-memory.dmp

Filesize
32KB

Download
memory/4140-7-0x0000000008EF0000-0x0000000008F8C000-memory.dmp

Filesize
624KB

Download
memory/4140-8-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/4140-9-0x00000000052A0000-0x00000000052B0000-memory.dmp

Filesize
64KB

Download
memory/4140-10-0x00000000067C0000-0x0000000006842000-memory.dmp

Filesize
520KB

Download
memory/4140-11-0x00000000066B0000-0x00000000066EA000-memory.dmp

Filesize
232KB

Download
memory/4140-5-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

Filesize
40KB

Download
memory/4140-0-0x0000000000550000-0x0000000000600000-memory.dmp

Filesize
704KB

Download
memory/4140-3-0x0000000005030000-0x00000000050C2000-memory.dmp

Filesize
584KB

Download
memory/4140-17-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download
memory/4140-2-0x00000000055E0000-0x0000000005B84000-memory.dmp

Filesize
5.6MB

Download
memory/4140-1-0x0000000074750000-0x0000000074F00000-memory.dmp

Filesize
7.7MB

Download