oski | 2e77a1b324229a10ce5ac15a916526eff4a1e44c291bb918d6ed5329bc56f81b

Analysis

max time kernel
149s
max time network
130s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
24/05/2026, 01:59

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General

Target
sub_2e77a1b32422.exe
Size 200KB
Sample260524-cejevsez7l
SHA256 2e77a1b324229a10ce5ac15a916526eff4a1e44c291bb918d6ed5329bc56f81b
MD5 8c36f8a010e9781bda4076852efb05a7
SHA1 155d37c5d7cfda081a74080dc288a80c7ecdc643
SHA512 5712cc4f13ab99173aae0708bf94961762625dbc78d8f77c54688c7acccd01b7117cd7f2a36120d3ae832b4f82582773b1cb00713481cd90e1944ffd6a2f8f8c
SSDEEP 3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIr1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNS1Ljo3c
TLSH
T1C4146D30B690C035E8A310BCDDEE86BEB96C7A301F5950C3A3D45A662F712F27A71657
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery oski infostealer spyware stealer

Malware Config

Signatures

Family: Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1628	2984	WerFault.exe	79

System Location Discovery: System Language Discovery 1 TTPs 1 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	sub_2e77a1b32422.exe

C:\Users\Admin\AppData\Local\Temp\sub_2e77a1b32422.exe
"C:\Users\Admin\AppData\Local\Temp\sub_2e77a1b32422.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:2984
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2984 -s 1464
  2⤵
  - Program crash
  PID:1628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 2984 -ip 2984
1⤵
PID:4684

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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