3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16

General

Target

3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
Size

350KB
MD5

fb0cc0909058659349180cfd92fe1323
SHA1

d8954e8c280db8466f1ffdf1977c389429258f0d
SHA256

3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16
SHA512

c319b557ee1fefdc9726e920ada272062e761fe885f69386f551155fbe96535f64710dc3fdcaead5cf7edbf0461c3cfa7e4531961aafbf975ab514d8484d9ae3
SSDEEP

6144:gVTQySiuxLxeHs/4UvcZSeNH4ikRo6S5W3v71TLnOxV8SyuiNu:2SiieHs/KeoHkzxOxqSyj

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
2544	svchost.exe

Loads dropped DLL 5 IoCs

pid	Process
2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
2812	WerFault.exe
2812	WerFault.exe
2812	WerFault.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\ee672a76 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ee672a76 = "C:\\Windows\\apppatch\\svchost.exe"	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\apppatch\svchost.exe	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2812	2544	WerFault.exe	30

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	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2544	svchost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2544	2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe	30
PID 2888 wrote to memory of 2544	2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe	30
PID 2888 wrote to memory of 2544	2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe	30
PID 2888 wrote to memory of 2544	2888	3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe	30
PID 2544 wrote to memory of 2812	2544	svchost.exe	31
PID 2544 wrote to memory of 2812	2544	svchost.exe	31
PID 2544 wrote to memory of 2812	2544	svchost.exe	31
PID 2544 wrote to memory of 2812	2544	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe
"C:\Users\Admin\AppData\Local\Temp\3133774f81b2ebd58279cad69210295a9ad12e757d078dd2734e9c241f9e7a16.exe"
1⤵
- Loads dropped DLL
- Modifies WinLogon
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2888
- 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
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 428
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2812

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\AppPatch\svchost.exe

Filesize
350KB

MD5
74da0f6359d8cd4a1325500f61bae319

SHA1
cdc309bf4a0c77d0eae8c9cbb6d1d8de426f4460

SHA256
44086bcbdad2a468467c0380f5b252217be8056f519b0f27220ceba81d0ecac9

SHA512
3ceb772d651bfc5a793c6a6aa5a9aea8d4e811295a5a0d5a6605cb04da5326a32a6a3b915a3107ad6b0d134b3ee5d097b05a13558be5e6774bb12bb42a47e807

Download Submit
memory/2544-14-0x0000000000180000-0x00000000001CA000-memory.dmp

Filesize
296KB

Download
memory/2544-16-0x0000000000180000-0x00000000001CA000-memory.dmp

Filesize
296KB

Download
memory/2544-18-0x0000000000180000-0x00000000001CA000-memory.dmp

Filesize
296KB

Download
memory/2544-22-0x0000000000180000-0x00000000001CA000-memory.dmp

Filesize
296KB

Download
memory/2544-20-0x0000000000180000-0x00000000001CA000-memory.dmp

Filesize
296KB

Download
memory/2544-25-0x0000000000210000-0x0000000000268000-memory.dmp

Filesize
352KB

Download
memory/2544-26-0x0000000000210000-0x0000000000268000-memory.dmp

Filesize
352KB

Download
memory/2544-28-0x0000000000210000-0x0000000000268000-memory.dmp

Filesize
352KB

Download
memory/2544-35-0x0000000000210000-0x0000000000268000-memory.dmp

Filesize
352KB

Download
memory/2888-13-0x0000000001260000-0x00000000012C9000-memory.dmp

Filesize
420KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads