43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d

Analysis

max time kernel
120s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20/11/2024, 03:45

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General

Target

43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe
Size

237KB
MD5

69466e731fd2ba477db41d11e59c073d
SHA1

696da7333a67e32710415214d1ea985e73fbd481
SHA256

43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d
SHA512

6b2a33e01f97e400afa7b5d31f0b1e753b1516c0410e75a2d6f9f445b50ac059c17ed6e73b153a2e89cc764a9dbf6caa7fc7bd05b9e33317772a06c21ad722fd
SSDEEP

6144:FD8okEvTyoZVOgd2QZiw5NLclL5orfQHn:NsjCF2QZiOU+4n

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:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
1140	svchost.exe

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\d66dae7 = "C:\\Windows\\apppatch\\svchost.exe"	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\d66dae7 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1140	svchost.exe
1140	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4772	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 1140	4772	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe	84
PID 4772 wrote to memory of 1140	4772	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe	84
PID 4772 wrote to memory of 1140	4772	43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe	84

C:\Users\Admin\AppData\Local\Temp\43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe
"C:\Users\Admin\AppData\Local\Temp\43e5c3433d77380bbbaf799e182389d289c80e0427332f18fced165221aa5c5d.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Windows\apppatch\svchost.exe
  "C:\Windows\apppatch\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Modifies WinLogon
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:1140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\apppatch\svchost.exe

Filesize
237KB

MD5
3414fe95717f23ae34370c7de51b17dc

SHA1
0fa2f5496a3a8c11fbaee85bdbbea1c44c3e3854

SHA256
43dd47b54d27fc011b9042d2f0e3d979ff9f665a832055d90dcabdbbff050967

SHA512
4f21f0cdca697907b6bb21f9bea24998054e8ee249c52357ff1351c5994fc97363f053b306fdd5ac65383ca0df560d482408ba3d77d20a5187e97344bd2a3f8c

Download Submit
memory/1140-63-0x0000000004070000-0x0000000004071000-memory.dmp

Filesize
4KB

Download
memory/1140-72-0x00000000040C0000-0x00000000040C1000-memory.dmp

Filesize
4KB

Download
memory/1140-24-0x0000000003F80000-0x0000000003F81000-memory.dmp

Filesize
4KB

Download
memory/1140-26-0x0000000003F90000-0x0000000003F91000-memory.dmp

Filesize
4KB

Download
memory/1140-14-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1140-15-0x0000000002B70000-0x0000000002BFC000-memory.dmp

Filesize
560KB

Download
memory/1140-16-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1140-17-0x0000000002F40000-0x0000000002FDB000-memory.dmp

Filesize
620KB

Download
memory/1140-21-0x0000000002F40000-0x0000000002FDB000-memory.dmp

Filesize
620KB

Download
memory/1140-19-0x0000000002F40000-0x0000000002FDB000-memory.dmp

Filesize
620KB

Download
memory/1140-37-0x0000000003FD0000-0x0000000003FD1000-memory.dmp

Filesize
4KB

Download
memory/1140-51-0x0000000004030000-0x0000000004031000-memory.dmp

Filesize
4KB

Download
memory/1140-77-0x00000000040D0000-0x00000000040D1000-memory.dmp

Filesize
4KB

Download
memory/1140-76-0x00000000040E0000-0x00000000040E1000-memory.dmp

Filesize
4KB

Download
memory/1140-27-0x0000000003F90000-0x0000000003F91000-memory.dmp

Filesize
4KB

Download
memory/1140-70-0x00000000040A0000-0x00000000040A1000-memory.dmp

Filesize
4KB

Download
memory/1140-69-0x00000000040B0000-0x00000000040B1000-memory.dmp

Filesize
4KB

Download
memory/1140-66-0x00000000040A0000-0x00000000040A1000-memory.dmp

Filesize
4KB

Download
memory/1140-28-0x0000000003F80000-0x0000000003F81000-memory.dmp

Filesize
4KB

Download
memory/1140-65-0x0000000004090000-0x0000000004091000-memory.dmp

Filesize
4KB

Download
memory/1140-52-0x0000000004040000-0x0000000004041000-memory.dmp

Filesize
4KB

Download
memory/1140-59-0x0000000004070000-0x0000000004071000-memory.dmp

Filesize
4KB

Download
memory/1140-58-0x0000000004060000-0x0000000004061000-memory.dmp

Filesize
4KB

Download
memory/1140-56-0x0000000004040000-0x0000000004041000-memory.dmp

Filesize
4KB

Download
memory/1140-55-0x0000000004050000-0x0000000004051000-memory.dmp

Filesize
4KB

Download
memory/1140-62-0x0000000004080000-0x0000000004081000-memory.dmp

Filesize
4KB

Download
memory/1140-49-0x0000000004010000-0x0000000004011000-memory.dmp

Filesize
4KB

Download
memory/1140-48-0x0000000004020000-0x0000000004021000-memory.dmp

Filesize
4KB

Download
memory/1140-44-0x0000000004000000-0x0000000004001000-memory.dmp

Filesize
4KB

Download
memory/1140-42-0x0000000003FE0000-0x0000000003FE1000-memory.dmp

Filesize
4KB

Download
memory/1140-41-0x0000000003FF0000-0x0000000003FF1000-memory.dmp

Filesize
4KB

Download
memory/1140-38-0x0000000003FE0000-0x0000000003FE1000-memory.dmp

Filesize
4KB

Download
memory/1140-35-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

Filesize
4KB

Download
memory/1140-34-0x0000000003FC0000-0x0000000003FC1000-memory.dmp

Filesize
4KB

Download
memory/1140-31-0x0000000003FB0000-0x0000000003FB1000-memory.dmp

Filesize
4KB

Download
memory/1140-30-0x0000000003FA0000-0x0000000003FA1000-memory.dmp

Filesize
4KB

Download
memory/4772-1-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4772-0-0x0000000002200000-0x0000000002265000-memory.dmp

Filesize
404KB

Download
memory/4772-12-0x0000000002200000-0x0000000002265000-memory.dmp

Filesize
404KB

Download
memory/4772-13-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download