4351a80a48383ae440d4c53eb347e742f32bd40e675e7b5c31c675e20778819e

Analysis

max time kernel
149s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 22:01

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General

Target

1de1cece94d95a6b74b13a8d0a204ee8.exe
Size

122KB
MD5

1de1cece94d95a6b74b13a8d0a204ee8
SHA1

64b6b2801be37a6ab2e22bac2994f63696a15de1
SHA256

4351a80a48383ae440d4c53eb347e742f32bd40e675e7b5c31c675e20778819e
SHA512

5718996d3dd4f089f955dbbdf8437ea61a7f03cdeb002865bbc0da284217396bac2318f6cece9500c32964be41105806ff5ccd0cc1ba1886eb94537bb1ba936e
SSDEEP

3072:a8KfDP6rX2Gsttc0pL6R830bGoHt98G4EuEQYglj5:aBDP6rmGstD16RAojuEPOlj5

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\wind0ws\Parameters\ServiceDll = "C:\\Program Files\\Windows Media Player\\wupdmgr32.dll"	1de1cece94d95a6b74b13a8d0a204ee8.exe

Deletes itself 1 IoCs

pid	Process
2828	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
2828	svchost.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Windows Media Player	1de1cece94d95a6b74b13a8d0a204ee8.exe
File created	C:\Program Files\Windows Media Player\wupdmgr32.dll	1de1cece94d95a6b74b13a8d0a204ee8.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\ThankU.txt	1de1cece94d95a6b74b13a8d0a204ee8.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2548	taskkill.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2532	1de1cece94d95a6b74b13a8d0a204ee8.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2828	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	taskkill.exe
Token: SeBackupPrivilege	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe
Token: SeRestorePrivilege	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2548	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe	28
PID 2532 wrote to memory of 2548	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe	28
PID 2532 wrote to memory of 2548	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe	28
PID 2532 wrote to memory of 2548	2532	1de1cece94d95a6b74b13a8d0a204ee8.exe	28

C:\Users\Admin\AppData\Local\Temp\1de1cece94d95a6b74b13a8d0a204ee8.exe
"C:\Users\Admin\AppData\Local\Temp\1de1cece94d95a6b74b13a8d0a204ee8.exe"
1⤵
- Sets DLL path for service in the registry
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /t /im KSafeTray.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2548

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Deletes itself
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
PID:2828

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\program files\windows media player\wupdmgr32.dll

Filesize
109KB

MD5
545aa0ee83fdceda04e3f13d9115c1b9

SHA1
ba0d92d2e2ad808b329879bfcae145e6ade8bbf0

SHA256
8343d5fc3485323ea04e4022687f50108c6b1c02858aff4b83eac1516c401884

SHA512
2294e0da8f55d64c242024af4ebf3e0f92a17a95f98f6314cc9defae189c1e689a54cb7f7c1f02e6511a78499894bf386b920c556a8bb9ba5156febb7e929432

Download Submit
memory/2532-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2532-3-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2828-5-0x0000000010000000-0x000000001001E000-memory.dmp

Filesize
120KB

Download