oski | 41052d6a6b62bda012dbfd2c47b00943bfe395745917e3bc187fcd07870c3bc0

Analysis

max time kernel
223s
max time network
333s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 23:56

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General

Target

41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe
Size

200KB
MD5

d0f80611b76764282e5615af48601d6d
SHA1

87b520ee21626677db6d92cf26bd10131e8c7ac5
SHA256

41052d6a6b62bda012dbfd2c47b00943bfe395745917e3bc187fcd07870c3bc0
SHA512

f30598b75baab9e241979070c10f86a1c43329f1bc033f37f04a45d4825f828a2b35b73f74962f3965cd8491520c8cd21b54752dd94b0ff93b3f652e43ce7ece
SSDEEP

3072:WfUomEuYm98dlSq7gt5q7Dx+XgS6aCEwhOfUbCalNT2pbB3fIE1Xi6FLPo3c:WfUauY68uSWCx+XA7mg2pNx1Ljo3c

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
1436	564	WerFault.exe	15

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 564 wrote to memory of 1436	564	41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe	30
PID 564 wrote to memory of 1436	564	41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe	30
PID 564 wrote to memory of 1436	564	41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe	30
PID 564 wrote to memory of 1436	564	41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe	30

C:\Users\Admin\AppData\Local\Temp\41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe
"C:\Users\Admin\AppData\Local\Temp\41052D6A6B62BDA012DBFD2C47B00943BFE395745917E.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:564
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 564 -s 444
  2⤵
  - Program crash
  PID:1436

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/564-54-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

Filesize
8KB

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