4351a80a48383ae440d4c53eb347e742f32bd40e675e7b5c31c675e20778819e

Analysis

max time kernel
149s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-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
4552	svchost.exe

Loads dropped DLL 1 IoCs

pid	Process
4552	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
5000	taskkill.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4768	1de1cece94d95a6b74b13a8d0a204ee8.exe
4768	1de1cece94d95a6b74b13a8d0a204ee8.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4552	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	4768	1de1cece94d95a6b74b13a8d0a204ee8.exe
Token: SeRestorePrivilege	4768	1de1cece94d95a6b74b13a8d0a204ee8.exe
Token: SeDebugPrivilege	5000	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 5000	4768	1de1cece94d95a6b74b13a8d0a204ee8.exe	14
PID 4768 wrote to memory of 5000	4768	1de1cece94d95a6b74b13a8d0a204ee8.exe	14
PID 4768 wrote to memory of 5000	4768	1de1cece94d95a6b74b13a8d0a204ee8.exe	14

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:4768
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /t /im KSafeTray.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:5000

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Deletes itself
- Loads dropped DLL
- Suspicious behavior: GetForegroundWindowSpam
PID:4552

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
91KB

MD5
b5d0839d06a10ba4c454bcd086d8fe40

SHA1
740e5b648dd5b84354bd698baa5ce516dc74d7b9

SHA256
7ee78ed05bb881a008942e858796df2d62398385f4f4b92170e0215f231cf2ad

SHA512
6e5b8aaf677f0362bf0edbe1a1ee54c78fb14353642854a93dc3a68e82aa7acd5ed4e56a0eca3c2f3c6f1d00303e25516277a37c8bbec671212110ed285bb366

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

Filesize
46KB

MD5
3604b78dc1984656cf79fc0f037247e7

SHA1
95858a35d1f3a7c0e17a7e3460622faad952318a

SHA256
1d040ffff40104076138bc4234fa942689ea4ac95f0f686a6f9038edbb68e3e1

SHA512
d71147ce599dad9e55c0fe92a81966b23fa4b55c7f339e927af578b123ea740d7a585faffa9ac2cb1059cc2dbc6d18fe08ccbd2d6de30c1033cd69e986d3a978

Download Submit
memory/4552-5-0x0000000010000000-0x000000001001E000-memory.dmp

Filesize
120KB

Download
memory/4768-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4768-3-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download