oski | 9a4949ef95975afceb281a33708ea8bcd90be831112bb2d89e7e3ba64a3e119a

Analysis

max time kernel
17s
max time network
101s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
12-02-2023 06:41

Target

9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe
Size

200KB
MD5

c98eba0c6b6491eaf7a05618cab679b9
SHA1

76081bc414d180a6184994d352af946cf9ba631f
SHA256

9a4949ef95975afceb281a33708ea8bcd90be831112bb2d89e7e3ba64a3e119a
SHA512

40eca72da50a1409ed98d1a4804e2d973d9cc30f0f6cf095c95cbf1b07159cc64caa0446f897ee774e4de01e75b6df3828a3aa00f860506c9d2dc43b18f829b9
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIU1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN11Ljo3c

Score

10^/10

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
T1081
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1324 520 WerFault.exe 9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe

pid	pid_target	process	target process
1324	520	WerFault.exe	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe

description	pid	process	target process
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	WerFault.exe
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	WerFault.exe
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	WerFault.exe
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe
"C:\Users\Admin\AppData\Local\Temp\9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 520 -s 772
2⤵
- Program crash
PID:1324

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

Discovery

Lateral Movement

Collection

Data from Local System

Exfiltration

Command and Control

Impact

memory/520-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

Filesize
8KB

Download
memory/1324-55-0x0000000000000000-mapping.dmp

Download