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

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General

Target
9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe
Size 200KB
Sample230212-hfrerahd8x
SHA256 9a4949ef95975afceb281a33708ea8bcd90be831112bb2d89e7e3ba64a3e119a
MD5 c98eba0c6b6491eaf7a05618cab679b9
SHA1 76081bc414d180a6184994d352af946cf9ba631f
SHA512 40eca72da50a1409ed98d1a4804e2d973d9cc30f0f6cf095c95cbf1b07159cc64caa0446f897ee774e4de01e75b6df3828a3aa00f860506c9d2dc43b18f829b9
SSDEEP 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIU1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pN11Ljo3c
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer spyware stealer

Malware Config

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
T1081

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1324	520	WerFault.exe	20

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	30
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	30
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	30
PID 520 wrote to memory of 1324	520	9A4949EF95975AFCEB281A33708EA8BCD90BE831112BB.exe	30

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

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

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