oski | 5756d366cde65c7e11ea6ee20610e854f64e385c74ca2ea712ad5d718d1f5b56

Analysis

max time kernel
46s
max time network
17s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
30-08-2024 19:56

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General

Target

dfd577445daa4705c75e7695d43613c0N.exe
Size

885KB
MD5

dfd577445daa4705c75e7695d43613c0
SHA1

de5fd2f958bd270c80e831d3f77fa1ba9a74db30
SHA256

5756d366cde65c7e11ea6ee20610e854f64e385c74ca2ea712ad5d718d1f5b56
SHA512

b82db0c4eb7998850b14f98260653e03e7ef872836afc8e57f5557b570809e9ad2863ef79e35cb600d0fa387676525dee420b0bfd4d777804dbe2f0edc9361b6
SSDEEP

6144:jBYFJLgGlXQG0VWHlKuA0UvErhHNhzAsmUvzPusCNPfxlpk8Lk+xdansUT:jGXQG0OhisnRmUvr4NPJzk8jdezT

Score

10^/10

oski discovery infostealer

Malware Config

Extracted

Family

oski

kelbro.xyz

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31

Program crash 1 IoCs

pid	pid_target	Process	procid_target
704	2972	WerFault.exe	31

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	dfd577445daa4705c75e7695d43613c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dfd577445daa4705c75e7695d43613c0N.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2720 wrote to memory of 2972	2720	dfd577445daa4705c75e7695d43613c0N.exe	31
PID 2972 wrote to memory of 704	2972	dfd577445daa4705c75e7695d43613c0N.exe	32
PID 2972 wrote to memory of 704	2972	dfd577445daa4705c75e7695d43613c0N.exe	32
PID 2972 wrote to memory of 704	2972	dfd577445daa4705c75e7695d43613c0N.exe	32
PID 2972 wrote to memory of 704	2972	dfd577445daa4705c75e7695d43613c0N.exe	32

C:\Users\Admin\AppData\Local\Temp\dfd577445daa4705c75e7695d43613c0N.exe
"C:\Users\Admin\AppData\Local\Temp\dfd577445daa4705c75e7695d43613c0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Users\Admin\AppData\Local\Temp\dfd577445daa4705c75e7695d43613c0N.exe
  "C:\Users\Admin\AppData\Local\Temp\dfd577445daa4705c75e7695d43613c0N.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 112
    3⤵
    - Program crash
    PID:704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2720-19-0x0000000074930000-0x000000007501E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-1-0x0000000000DA0000-0x0000000000E82000-memory.dmp

Filesize
904KB

Download
memory/2720-2-0x0000000074930000-0x000000007501E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-3-0x0000000000470000-0x000000000048C000-memory.dmp

Filesize
112KB

Download
memory/2720-4-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/2720-5-0x0000000074930000-0x000000007501E000-memory.dmp

Filesize
6.9MB

Download
memory/2720-6-0x00000000057E0000-0x000000000584A000-memory.dmp

Filesize
424KB

Download
memory/2720-7-0x0000000000A10000-0x0000000000A48000-memory.dmp

Filesize
224KB

Download
memory/2720-0-0x000000007493E000-0x000000007493F000-memory.dmp

Filesize
4KB

Download
memory/2972-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download