oski | 42c682af79cf1b73127ebf00349a8c4cabccdf42d2e14f77cda67121f870d8bf

General

Target

03972c7f3b0df942d4e0a1e11956e523.exe
Size

884KB
MD5

03972c7f3b0df942d4e0a1e11956e523
SHA1

55675cc5594b4731ab268fa2e1ff35df892de7df
SHA256

42c682af79cf1b73127ebf00349a8c4cabccdf42d2e14f77cda67121f870d8bf
SHA512

2d3b1865a41cbf9d6d909d481e7275ff0adda1b8a404b1015e9ff74c943509cdd490ebb5252301609f12f75c392275bc382b21d9044c86d0aef394c937b43ca1
SSDEEP

12288:PdjGXt2ghPHK7zt4QKvq7Mlax3UAXynyGPl+U8av4ORx:VGXt2g4R3Kvsl3XOd8LC

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

C2

soitaab.co/make/

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 1936 set thread context of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1916	1668	WerFault.exe	32

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2272	schtasks.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2272	1936	03972c7f3b0df942d4e0a1e11956e523.exe	30
PID 1936 wrote to memory of 2272	1936	03972c7f3b0df942d4e0a1e11956e523.exe	30
PID 1936 wrote to memory of 2272	1936	03972c7f3b0df942d4e0a1e11956e523.exe	30
PID 1936 wrote to memory of 2272	1936	03972c7f3b0df942d4e0a1e11956e523.exe	30
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1936 wrote to memory of 1668	1936	03972c7f3b0df942d4e0a1e11956e523.exe	32
PID 1668 wrote to memory of 1916	1668	03972c7f3b0df942d4e0a1e11956e523.exe	37
PID 1668 wrote to memory of 1916	1668	03972c7f3b0df942d4e0a1e11956e523.exe	37
PID 1668 wrote to memory of 1916	1668	03972c7f3b0df942d4e0a1e11956e523.exe	37
PID 1668 wrote to memory of 1916	1668	03972c7f3b0df942d4e0a1e11956e523.exe	37

C:\Users\Admin\AppData\Local\Temp\03972c7f3b0df942d4e0a1e11956e523.exe
"C:\Users\Admin\AppData\Local\Temp\03972c7f3b0df942d4e0a1e11956e523.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pxOIUAzyZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FE0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2272
- C:\Users\Admin\AppData\Local\Temp\03972c7f3b0df942d4e0a1e11956e523.exe
  "C:\Users\Admin\AppData\Local\Temp\03972c7f3b0df942d4e0a1e11956e523.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 744
    3⤵
    - Program crash
    PID:1916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1FE0.tmp

Filesize
1KB

MD5
8ab3e82d0464cbbd377253e8f83b5b1e

SHA1
ae01f8add81aaaa4fc357a9335a77e7cf351d463

SHA256
88e47f4cb526dc6601ffe154a548194cbb80a39bb997439670b2aa0088ce092c

SHA512
b30c95510793c5ac61f0a2c8e41342bcfebb2d7f548ffc3704fafcbf0a2f3541c3daa9fdec6991ab064bd5d3ecba0eda01b1650f748a5411d0fcd54af9fca3a1

Download Submit
memory/1668-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1668-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1668-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1936-3-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/1936-1-0x0000000073D90000-0x000000007447E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-7-0x0000000004CE0000-0x0000000004D18000-memory.dmp

Filesize
224KB

Download
memory/1936-2-0x0000000004C20000-0x0000000004C60000-memory.dmp

Filesize
256KB

Download
memory/1936-0-0x0000000000990000-0x0000000000A74000-memory.dmp

Filesize
912KB

Download
memory/1936-25-0x0000000073D90000-0x000000007447E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-6-0x00000000056D0000-0x0000000005774000-memory.dmp

Filesize
656KB

Download
memory/1936-5-0x0000000004C20000-0x0000000004C60000-memory.dmp

Filesize
256KB

Download
memory/1936-4-0x0000000073D90000-0x000000007447E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads