oski | c254079e9a75cb708e28deb9c72c77689c53425f8256338343c06285bed8ebbe

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 04:35

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General

Target
0eab3ccc18c952cc89f73ba1a480070f.exe
Size 1.3MB
Sample231230-e75jxagfd2
SHA256 c254079e9a75cb708e28deb9c72c77689c53425f8256338343c06285bed8ebbe
MD5 0eab3ccc18c952cc89f73ba1a480070f
SHA1 475b8039046cc7283ee3495aa8abc879679a860b
SHA512 0e7560b4b0de29541944de249cf6dce10d6f51d858e45362e9bb86cc8abe00fcf9fce8a76c660f938313f467ea38defc97f881ec4a9ce56924c78e3af9f71ec5
SSDEEP 24576:v2X1TrFY8blhBPHKFOoOxlVkqF2gZROak1FsGrQxQn9Y:OXpyQ1vxzxlPI6RE/Drh9
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

oski infostealer spyware stealer

Malware Config

Extracted

Family

oski

vtgtradings.com

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 2924 set thread context of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30

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
1572	2232	WerFault.exe	30

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
2180	schtasks.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2180	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	28
PID 2924 wrote to memory of 2180	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	28
PID 2924 wrote to memory of 2180	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	28
PID 2924 wrote to memory of 2180	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	28
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2924 wrote to memory of 2232	2924	0eab3ccc18c952cc89f73ba1a480070f.exe	30
PID 2232 wrote to memory of 1572	2232	0eab3ccc18c952cc89f73ba1a480070f.exe	36
PID 2232 wrote to memory of 1572	2232	0eab3ccc18c952cc89f73ba1a480070f.exe	36
PID 2232 wrote to memory of 1572	2232	0eab3ccc18c952cc89f73ba1a480070f.exe	36
PID 2232 wrote to memory of 1572	2232	0eab3ccc18c952cc89f73ba1a480070f.exe	36

C:\Users\Admin\AppData\Local\Temp\0eab3ccc18c952cc89f73ba1a480070f.exe
"C:\Users\Admin\AppData\Local\Temp\0eab3ccc18c952cc89f73ba1a480070f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OhlPJGhIQFna" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA479.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2180
- C:\Users\Admin\AppData\Local\Temp\0eab3ccc18c952cc89f73ba1a480070f.exe
  "C:\Users\Admin\AppData\Local\Temp\0eab3ccc18c952cc89f73ba1a480070f.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 772
    3⤵
    - Program crash
    PID:1572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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tmpA479.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpA479.tmp
Size 1KB
SHA256 64d29543c261a90bb424885b4a7c893daafe8ff838068f295f02d84894b3cf8f
MD5 abf37643ad2d268b8df1db7e29a4bfa5
SHA1 41514bc5fc2741a62f3bfbe18a58acc03f620b2f
SHA512 e458eff4830c855ece6a3a6eeb30f18c84dc86e1bb1bf4da074439b324c061aa6c9670f188d9bbfe547b3f39751c967cf918912e54ee4f6d49002c8cf671b507
MD5 SHA1 SHA512

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memory/2232-17-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-31-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2232-25-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-27-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-29-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-21-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-19-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-13-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2232-15-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2924-5-0x0000000002080000-0x00000000020C0000-memory.dmp

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memory/2924-7-0x0000000001F50000-0x0000000001F88000-memory.dmp

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memory/2924-6-0x0000000005D60000-0x0000000005E00000-memory.dmp

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memory/2924-1-0x0000000074E10000-0x00000000754FE000-memory.dmp

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memory/2924-28-0x0000000074E10000-0x00000000754FE000-memory.dmp

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memory/2924-4-0x0000000074E10000-0x00000000754FE000-memory.dmp

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memory/2924-3-0x00000000005B0000-0x00000000005C8000-memory.dmp

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memory/2924-2-0x0000000002080000-0x00000000020C0000-memory.dmp

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memory/2924-0-0x00000000009F0000-0x0000000000B44000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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