5a57eda1f908e97c0d99ebb428e7b23bfc8a0b7533b99459c069de9d53c70b29

Analysis

max time kernel
156s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 01:57

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General

Target

c4adf087179f7a7a58329c2ee1d7e0fb.exe
Size

23KB
MD5

c4adf087179f7a7a58329c2ee1d7e0fb
SHA1

99404eec5b52122a81cfc81cd2521209bb25bc11
SHA256

5a57eda1f908e97c0d99ebb428e7b23bfc8a0b7533b99459c069de9d53c70b29
SHA512

5374f6279da198a99db7292cf89e073cf9dc9af96adc34c3bc6f21beffe507c40837414f1fc2deb52580998ddf8b2bbe4347f94e299a571881a465810132eab7
SSDEEP

384:MzzeBf3/4rcApr1dhxgSDDdd5AXYBKjuh9RMO0cUuvU60wWwvXG9:1BfP4rrrngSfCS0A9RMFcfvUfnOXG9

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-12387\\newcont8rnd7.exe"	c4adf087179f7a7a58329c2ee1d7e0fb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\newcontr8nd7 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-12387\\newcont8rnd7.exe"	c4adf087179f7a7a58329c2ee1d7e0fb.exe

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-12387\Desktop.ini	c4adf087179f7a7a58329c2ee1d7e0fb.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781863308-12387\\newcont8rnd7.exe"	c4adf087179f7a7a58329c2ee1d7e0fb.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2020	c4adf087179f7a7a58329c2ee1d7e0fb.exe
2020	c4adf087179f7a7a58329c2ee1d7e0fb.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 3300	2020	c4adf087179f7a7a58329c2ee1d7e0fb.exe	55
PID 2020 wrote to memory of 3300	2020	c4adf087179f7a7a58329c2ee1d7e0fb.exe	55
PID 2020 wrote to memory of 3300	2020	c4adf087179f7a7a58329c2ee1d7e0fb.exe	55

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3300
- C:\Users\Admin\AppData\Local\Temp\c4adf087179f7a7a58329c2ee1d7e0fb.exe
  "C:\Users\Admin\AppData\Local\Temp\c4adf087179f7a7a58329c2ee1d7e0fb.exe"
  2⤵
  - 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:2020

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4120 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
1⤵
PID:4476

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2020-0-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2020-1-0x0000000000710000-0x0000000000725000-memory.dmp

Filesize
84KB

Download
memory/2020-2-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download