b7b278f28e0760b520f5807dc8f33b554955ac2a9566d44bf79818dd70ae388d

Analysis

max time kernel
137s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 16:49

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General

Target
okkkkkkkk.exe
Size 120KB
Sample240517-vbraeahc24
SHA256 a8e4778e5023373038c2214d85fcbdbfe0e5f63ad721bed8def3ab65d1f292cb
MD5 50c2221345a927e9b1f20f49f4e32230
SHA1 8cf858f3776a4d9d4f99aac814f24e646118bf5c
SHA512 c04993299fbfbcd4faefbfdca3753ee7a21db3f6f82448e7eee615349fd8f68d9a60bd0f666f5830a2aff7d3bde5fe0873f7d75f9fb0018fb2f917c469501494
SSDEEP 3072:436hbrS9B+R64paFhoLU56OGt0ClArUhn3NrsM3OA6GKGA:Bbr66leyiy6uhnSM6G1
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

collection spyware stealer

Malware Config

Signatures

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	okkkkkkkk.exe
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	okkkkkkkk.exe
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	okkkkkkkk.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
23	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3288 set thread context of 3544	3288	okkkkkkkk.exe	87

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3544	okkkkkkkk.exe
3544	okkkkkkkk.exe
3544	okkkkkkkk.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3544	okkkkkkkk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3288	okkkkkkkk.exe
Token: SeDebugPrivilege	3544	okkkkkkkk.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3544	okkkkkkkk.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87
PID 3288 wrote to memory of 3544	3288	okkkkkkkk.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	okkkkkkkk.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	okkkkkkkk.exe

C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe
"C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe
  "C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:3544

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

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

okkkkkkkk.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\okkkkkkkk.exe.log
Size 313B
SHA256 cd62d4fbf8b135be5c0b8448a7d53db7784869761a10ec99473f58f44d8e686c
MD5 00b72ea3d569eb0d4fb85691b642f47c
SHA1 f9134a33706eb76ddb00e5276639d660a071da9b
SHA512 62af7608834d84fa95470247cab4bfa5a382825f81e9918b762e62dfc6c467e7b50cfb5b2fd36eff1da320e22aa8c1427c02820e06d9f2f6483e64740a43e8df
MD5 SHA1 SHA512

Submit Download

memory/3288-0-0x0000000074772000-0x0000000074773000-memory.dmp

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memory/3288-1-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3288-2-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3288-6-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3544-3-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3544-7-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3544-8-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3544-9-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3544-10-0x0000000074770000-0x0000000074D21000-memory.dmp

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memory/3544-11-0x0000000074770000-0x0000000074D21000-memory.dmp

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