oski | 60d1297adb502d942493a794945336aea891d2c321476ef3349ac07726fca7c3

Analysis

max time kernel
135s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2024 18:32

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General

Target

7536b74c17754363799df14fe70d3a92.exe
Size

995KB
MD5

7536b74c17754363799df14fe70d3a92
SHA1

790969675e8cec28cf19c18625dd764884459b01
SHA256

60d1297adb502d942493a794945336aea891d2c321476ef3349ac07726fca7c3
SHA512

8f706b646a4a9c3549ffda3e14bfe5724c3287e0f4dfbe853888c7e529dedaccd00af2ed933fe1e7d21de26b88b96f2ffe08319570751215975f0a3524a4e8fd
SSDEEP

12288:be4t9eZHlEWAxjvsMF3mKAk618T7xlkvvyrmT9EXvStCgEfW54n2iN1T:beVOsMdl6ixlYdT9So0e6n1H

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

http://2.56.59.226/www/

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 1408 set thread context of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1748	1236	WerFault.exe	96

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1408	7536b74c17754363799df14fe70d3a92.exe
1408	7536b74c17754363799df14fe70d3a92.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1408	7536b74c17754363799df14fe70d3a92.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1408 wrote to memory of 2292	1408	7536b74c17754363799df14fe70d3a92.exe	95
PID 1408 wrote to memory of 2292	1408	7536b74c17754363799df14fe70d3a92.exe	95
PID 1408 wrote to memory of 2292	1408	7536b74c17754363799df14fe70d3a92.exe	95
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96
PID 1408 wrote to memory of 1236	1408	7536b74c17754363799df14fe70d3a92.exe	96

C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe
"C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1408
- C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe
  "C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe"
  2⤵
  PID:2292
- C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe
  "C:\Users\Admin\AppData\Local\Temp\7536b74c17754363799df14fe70d3a92.exe"
  2⤵
  PID:1236
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1236 -s 1280
    3⤵
    - Program crash
    PID:1748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1236 -ip 1236
1⤵
PID:2816

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/1236-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1236-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1236-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1236-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1236-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1236-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1408-5-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/1408-6-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

Filesize
40KB

Download
memory/1408-8-0x0000000005190000-0x00000000051A2000-memory.dmp

Filesize
72KB

Download
memory/1408-9-0x0000000074AC0000-0x0000000075270000-memory.dmp

Filesize
7.7MB

Download
memory/1408-10-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

Filesize
64KB

Download
memory/1408-11-0x0000000006FD0000-0x0000000007072000-memory.dmp

Filesize
648KB

Download
memory/1408-12-0x00000000049F0000-0x0000000004A2A000-memory.dmp

Filesize
232KB

Download
memory/1408-7-0x0000000005300000-0x0000000005356000-memory.dmp

Filesize
344KB

Download
memory/1408-0-0x0000000074AC0000-0x0000000075270000-memory.dmp

Filesize
7.7MB

Download
memory/1408-4-0x00000000050B0000-0x0000000005142000-memory.dmp

Filesize
584KB

Download
memory/1408-3-0x0000000005660000-0x0000000005C04000-memory.dmp

Filesize
5.6MB

Download
memory/1408-18-0x0000000074AC0000-0x0000000075270000-memory.dmp

Filesize
7.7MB

Download
memory/1408-2-0x0000000005010000-0x00000000050AC000-memory.dmp

Filesize
624KB

Download
memory/1408-1-0x00000000004D0000-0x00000000005CE000-memory.dmp

Filesize
1016KB

Download