331a562953f7da86fb6fc344a1c27c49051105177f8ff8661058d801d8f12802

Analysis

max time kernel
139s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
16/06/2024, 02:37

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General

Target
1.exe
Size 48KB
Sample240616-c4lxaawdpg
SHA256 1f2e39728d627019c482b270eabb614d39100ed910797c6884fc405ae6514412
MD5 7f0bf23db6496335d9adf01fb50ec091
SHA1 92ba1a47b40306bf5e4027506c7683ab3577fb73
SHA512 f62a8b136cec137784692547bb7259e36592dd474c16914683f872ab30f482d8acf6a2064c996515c1c99b3337c15b4d0c85fe971cd599c8e9aa54b5822f40df
SSDEEP 768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67ThPC:Ub1MsHz3JDwhyWr+N95OTga6I
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Remocte1\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240603078.dll"	1.exe

Executes dropped EXE 1 IoCs

pid	Process
492	Remocte1.exe

Loads dropped DLL 3 IoCs

pid	Process
1292	1.exe
996	svchost.exe
492	Remocte1.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Remocte1.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remocte1.exe	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5052	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1292	1.exe
1292	1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1292	1.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1292	1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1292 wrote to memory of 3024	1292	1.exe	79
PID 1292 wrote to memory of 3024	1292	1.exe	79
PID 1292 wrote to memory of 3024	1292	1.exe	79
PID 3024 wrote to memory of 5052	3024	cmd.exe	81
PID 3024 wrote to memory of 5052	3024	cmd.exe	81
PID 3024 wrote to memory of 5052	3024	cmd.exe	81
PID 996 wrote to memory of 492	996	svchost.exe	82
PID 996 wrote to memory of 492	996	svchost.exe	82
PID 996 wrote to memory of 492	996	svchost.exe	82

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\1.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:5052

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remocte1"
1⤵
PID:3952

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remocte1"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:996
- C:\Windows\SysWOW64\Remocte1.exe
  C:\Windows\system32\Remocte1.exe "c:\users\admin\appdata\local\temp\240603078.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

240603078.dll

Path C:\Users\Admin\AppData\Local\Temp\240603078.dll
Size 25KB
SHA256 e433fea139b4bc81961a73df3159211c6a20475d798d53bfd3c11b77850caa5b
MD5 7058a766ab64adf883745d749cd0319f
SHA1 52f41f3df9b376345e669cc445da51e4d0647a17
SHA512 8452538215ad6a6a793fc820be306acb9a0412b63e679375c2f0c56c4ba95a2b45bcc8520bbfeca8b8489c660c5a6a861707dee54104d796a294148e8fc2047c
SSDEEP 384:8T9IWqIwt10zr6lXYhCRdkyurLmC2S1xJrQcWrH/RUAMO0MY0holUxHd9q4tKDES:8ht+Izr6pqRrLuS1vzWpaGZHdbYDG
MD5 SHA1 SHA512 SSDEEP

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Remocte1.exe

Path C:\Windows\SysWOW64\Remocte1.exe
Size 40KB
SHA256 8dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e
MD5 22bb5bd901d8b25ac5b41edbb7d5053e
SHA1 8a935dd8d7e104fc553ff7e8b54a404f7b079334
SHA512 cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7
SSDEEP 768:C67uhQpPPp0nnqFk509FRdVcQX6N58hJYim1jLP3RRe:C67uhQpXp0nnqa5093jKNAmB3RR
MD5 SHA1 SHA512 SSDEEP

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