fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4

General

Target

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
Size

103KB
MD5

c379d1c79e6de48bd1b0e5568c1cf485
SHA1

12fe4832b7a14ab21a314df576ec35fa8210f43d
SHA256

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4
SHA512

b3b1b1203e173782d185738964991a7fbb6e7133900e1fed6990ef73c912ee1e9f7844089f418b6e3d9659495cb16c58e4cc3a27f3c656b46a75a15aaefd6af5
SSDEEP

3072:zX3ujCPlXF/mIUJhuyTwiRSQXmNINh5B4:z5lXB+m0G

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe"	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\v18371931 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe"	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	ioc	process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-41873714\Desktop.ini	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-41873714\\v2873941.exe"	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	pid	process	target process
PID 3500 set thread context of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exefb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

pid	process
3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
5096	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
5096	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exefb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe

description	pid	process	target process
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 3500 wrote to memory of 5096	3500	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
PID 5096 wrote to memory of 752	5096	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	Explorer.EXE
PID 5096 wrote to memory of 752	5096	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	Explorer.EXE
PID 5096 wrote to memory of 752	5096	fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:752

C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
"C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3500

C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.exe
"C:\Users\Admin\AppData\Local\Temp\fb8d107dad7e2239990da432d97cbeee2805b4a100a0b6d31e5963aeeffcf5d4.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:5096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/5096-132-0x0000000000000000-mapping.dmp

Download
memory/5096-133-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/5096-135-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads