oski | c2a7f190f90a0517a791e5ad8bd8941f6639f84d7e45d6c3b3099adfae1b7e17

General

Target

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
Size

396KB
MD5

8d97f71457a0a2977a82571583306c26
SHA1

936800c740c13a3fc2e05a1c1376007f58002a7d
SHA256

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f
SHA512

5708375538d7b9927784809912a0b0588e200aaf62668226b9b83c2c4879306d989bef3033807bd7bb8989a56b58b2369b42327968f23f2dddc6d9b2975c51f5
SSDEEP

12288:7ycqterR53JplKiFwgxtQ9LdQAGAHUq/uzK6UA8t9HHHHHHHHHIHHHHHHczJXNAG:7QtervJXzQ9L

Score

10^/10

oski credential_access discovery infostealer persistence spyware stealer

Malware Config

Extracted

Family

oski

C2

forum.daffodil-bd.com

Signatures

Oski
Oski is an infostealer targeting browser data, crypto wallets.
infostealer oski
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Windows Services = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Update Folder\\Windows Update.exe"	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

description	pid	process	target process
PID 448 set thread context of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4804 1940 WerFault.exe a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

pid	pid_target	process	target process
4804	1940	WerFault.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exea7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

pid	process
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

description pid process

Token: SeDebugPrivilege 448 a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

description	pid	process
Token: SeDebugPrivilege	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
"C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448
- C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
  "C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe"
  2⤵
  PID:1704
- C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
  "C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe"
  2⤵
  PID:3328
- C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
  "C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe"
  2⤵
  PID:3244
- C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
  "C:\Users\Admin\AppData\Local\Temp\a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1940 -s 1812
    3⤵
    - Program crash
    PID:4804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1940 -ip 1940
1⤵
PID:4756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\msvcp140.dll

Filesize
9KB

MD5
f3f655cbfc50fc8fffa3a8f0d902dfd5

SHA1
8e8f5d961a2a994a58c9c32dc9baf5f17c83b2af

SHA256
c892eebf96c4eb7444aa3116fa318bcdad68df616062357f196d8cb46a2afaf1

SHA512
82b45485049cd0defec35b0680db504caea3d4916d1e3557f883cb2bfddcb0568cc56c4ab5d04df2f8eaac492321414527bfac3ad1df9987ae95502dc218dbc7

Download Submit
memory/448-6-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/448-8-0x00000000057F0000-0x00000000057FA000-memory.dmp

Filesize
40KB

Download
memory/448-3-0x00000000060E0000-0x0000000006684000-memory.dmp

Filesize
5.6MB

Download
memory/448-4-0x0000000005CD0000-0x0000000005D62000-memory.dmp

Filesize
584KB

Download
memory/448-5-0x0000000005D70000-0x0000000005E0C000-memory.dmp

Filesize
624KB

Download
memory/448-0-0x000000007522E000-0x000000007522F000-memory.dmp

Filesize
4KB

Download
memory/448-1-0x0000000000DB0000-0x0000000000E1C000-memory.dmp

Filesize
432KB

Download
memory/448-14-0x0000000075220000-0x00000000759D0000-memory.dmp

Filesize
7.7MB

Download
memory/448-2-0x0000000005750000-0x0000000005756000-memory.dmp

Filesize
24KB

Download
memory/1940-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1940-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1940-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1940-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1940-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

description	pid	process	target process
PID 448 wrote to memory of 1704	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1704	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1704	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3328	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3328	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3328	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3244	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3244	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 3244	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe
PID 448 wrote to memory of 1940	448	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe	a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads