187af94549eb0421867470da250a14ad73e30252b91352a9a152fd55f2559eb9

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-02-2024 16:10

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General

Target

8751033a7635d5292ee6acf6b7ce070b.exe
Size

255KB
MD5

8751033a7635d5292ee6acf6b7ce070b
SHA1

043e6703de1bb3b80da086c3170a3a32ff0daa75
SHA256

187af94549eb0421867470da250a14ad73e30252b91352a9a152fd55f2559eb9
SHA512

1e01f144893dbcd157fbc560a9faa054c947b77667b7ad761888035a3930c24e4eaf84a1de18f1d5808d25ea97a32aa80cd0a0147c6d83774cdad876c3430188
SSDEEP

6144:nNU2+2kcTBWUZxjCld3hRV2QsXSAaj4ijpFaQTQisa:nNRdpgdRRoTCD4ijpoix

Score

10^/10

discovery 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\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\875103~1.EXE,"	8751033a7635d5292ee6acf6b7ce070b.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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\875103~1.EXE"	8751033a7635d5292ee6acf6b7ce070b.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\b8fc5221 = "\x1fJBÏ‚s³Ss%#ÉÜ®E™”ÐÑ«Èòx‹\\>Î˜è\v\fÜ\|É'$†\u0081‹ì¾ÆhƒEzš\x0eéÜÚ©á\u00a0’JèžAd\t¼ž\|sÄÝ®ÿB0§Ï\núl®$qNOñ>ÚÊÇ\u0090®8Ñ)Añ˜z·\x17\x1c´\b@\x7f¡òž<_t\x7f\x11\|ùq\x0eÁz§„:Q!—T¢ºÀâ\x1f\x1f©÷\x11Œ\x11ˆ8F¤áI/¿vx¶¯ÄÇ©Ì_\a—T¨d17¡B¡ò\x1c\u0081âQ"	8751033a7635d5292ee6acf6b7ce070b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\875103~1.EXE"	8751033a7635d5292ee6acf6b7ce070b.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe
3108	8751033a7635d5292ee6acf6b7ce070b.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3108	8751033a7635d5292ee6acf6b7ce070b.exe
Token: SeSecurityPrivilege	3108	8751033a7635d5292ee6acf6b7ce070b.exe
Token: SeSecurityPrivilege	3108	8751033a7635d5292ee6acf6b7ce070b.exe
Token: SeSecurityPrivilege	3108	8751033a7635d5292ee6acf6b7ce070b.exe

C:\Users\Admin\AppData\Local\Temp\8751033a7635d5292ee6acf6b7ce070b.exe
"C:\Users\Admin\AppData\Local\Temp\8751033a7635d5292ee6acf6b7ce070b.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3108

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

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3108-0-0x0000000000400000-0x0000000000533000-memory.dmp

Filesize
1.2MB

Download
memory/3108-1-0x00000000009A0000-0x00000000009F7000-memory.dmp

Filesize
348KB

Download
memory/3108-2-0x0000000000400000-0x0000000000533000-memory.dmp

Filesize
1.2MB

Download
memory/3108-4-0x0000000002740000-0x00000000027F2000-memory.dmp

Filesize
712KB

Download
memory/3108-5-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-7-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-11-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-10-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-8-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-63-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-70-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-71-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-75-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-85-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-86-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-88-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-91-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-89-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-97-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-100-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-99-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-105-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-102-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-96-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-108-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-109-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-113-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-111-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-94-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-69-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-68-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-67-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-66-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-65-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-64-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-62-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-61-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-60-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-59-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-58-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download
memory/3108-4223-0x00000000009A0000-0x00000000009F7000-memory.dmp

Filesize
348KB

Download
memory/3108-5000-0x0000000000400000-0x0000000000533000-memory.dmp

Filesize
1.2MB

Download
memory/3108-6196-0x0000000002900000-0x00000000029B8000-memory.dmp

Filesize
736KB

Download