c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e

Analysis

max time kernel
153s
max time network
178s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21/10/2022, 04:08

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General

Target

c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe
Size

75KB
MD5

7ab1afb389bc52cc511e956becd18f80
SHA1

e734e42dee57805f45704b83f264ee03ebb977bc
SHA256

c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e
SHA512

a4c0af042647e278a51a937869d3c3c61ad081c2cb57b02f959cdc62375350d5696cad33f45be5ff9fbcf67ece8e457d293a88bea17a0056b8b503592b618d54
SSDEEP

1536:aaIoMKhdLjEPUZ4NYjHYq/SAwwgIBIw+7J:3IopQPyHbz/SAhrIw+l

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-46689\\24naq.exe"	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\t4q = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-46689\\24naq.exe"	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-46689\Desktop.ini	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-46689\\24naq.exe"	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5068 set thread context of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2468	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe
2468	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 5068 wrote to memory of 2468	5068	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	81
PID 2468 wrote to memory of 1084	2468	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	54
PID 2468 wrote to memory of 1084	2468	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	54
PID 2468 wrote to memory of 1084	2468	c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe	54

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1084
- C:\Users\Admin\AppData\Local\Temp\c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe
  "C:\Users\Admin\AppData\Local\Temp\c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:5068
- - C:\Users\Admin\AppData\Local\Temp\c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe
    "C:\Users\Admin\AppData\Local\Temp\c1557b9b44f6ffc93612b287bbd5b16ebbefe41bfdf98a440fec4505956d4d0e.exe"
    3⤵
    - Modifies WinLogon for persistence
    - Adds Run key to start application
    - Drops desktop.ini file(s)
    - Modifies WinLogon
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2468-136-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/2468-134-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/5068-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/5068-137-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download