4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e

General

Target

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
Size

154KB
MD5

883a998624c15348861506c7d98f7fca
SHA1

2c371b079894c3ec5e4ac473f0cd8dc1bad16836
SHA256

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e
SHA512

8766bc872c9ff5323c44895a25bba9aa4e49271786f30f245cf39178ad158eba98636a6bf92f61461d01d653cec22c9730ab811c5c35558614c2e4d1ca691573
SSDEEP

3072:dVXTF1HfMkyu9lsrWV0ccPNaFiaWLPR7AyJxPgm:dZ/MkyElsfPNOoPKyJH

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-134819034\\ajbbnx.exe"	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\abmbnj4 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-134819034\\ajbbnx.exe"	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	ioc	process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-134819034\Desktop.ini	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-134819034\\ajbbnx.exe"	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	pid	process	target process
PID 1664 set thread context of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

pid	process
1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
816	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
816	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe

description	pid	process	target process
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 1664 wrote to memory of 816	1664	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
PID 816 wrote to memory of 2600	816	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	Explorer.EXE
PID 816 wrote to memory of 2600	816	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	Explorer.EXE
PID 816 wrote to memory of 2600	816	4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2600
- C:\Users\Admin\AppData\Local\Temp\4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
  "C:\Users\Admin\AppData\Local\Temp\4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1664
- - C:\Users\Admin\AppData\Local\Temp\4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.exe
    "C:\Users\Admin\AppData\Local\Temp\4ae38e20a2f3feff6b14dc5babca0cb6e77efc24836f9f66806997420caa165e.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:816

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/816-132-0x0000000000000000-mapping.dmp

Download
memory/816-133-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/816-136-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1664-134-0x0000000000570000-0x0000000000573000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads