d0fff4c29b2105289d2bb121a80c990e3f7d110f89978a8e8254a9c6eba95784

General

Target

56ca43ba032d7b7929cf2e28207be039.exe
Size

27KB
MD5

56ca43ba032d7b7929cf2e28207be039
SHA1

2fd42dec311104b87d601d406bb4fbd8c158a29f
SHA256

d0fff4c29b2105289d2bb121a80c990e3f7d110f89978a8e8254a9c6eba95784
SHA512

c62c8ad1d100e963505045c0b1fb95eb2896b90673b346c21d4a3f5d80b066320ee11284a45cf1e6b21158cde9fa35b43fb689f12f3a4957187b0dbaf7912820
SSDEEP

768:ENy+CCW5uVi8ZgT2MMWN5xUpGa/9SPji:EN3e58ZgToWN5QSPO

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2436	win32us.exe

Executes dropped EXE 4 IoCs

pid	Process
2436	win32us.exe
2692	win32us.exe
2592	win32us.exe
1712	win32us.exe

Loads dropped DLL 14 IoCs

pid	Process
2276	56ca43ba032d7b7929cf2e28207be039.exe
2276	56ca43ba032d7b7929cf2e28207be039.exe
2436	win32us.exe
2436	win32us.exe
2436	win32us.exe
2436	win32us.exe
2692	win32us.exe
2692	win32us.exe
2692	win32us.exe
2692	win32us.exe
2592	win32us.exe
2592	win32us.exe
2592	win32us.exe
2592	win32us.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\win32us = "c:\\windows\\system32\\win32us.exe /noconnect"	win32us.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\win32us = "c:\\windows\\system32\\win32us.exe /noconnect"	56ca43ba032d7b7929cf2e28207be039.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\win32us = "c:\\windows\\system32\\win32us.exe /noconnect"	win32us.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\win32us = "c:\\windows\\system32\\win32us.exe /noconnect"	win32us.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\win32us.exe	56ca43ba032d7b7929cf2e28207be039.exe
File opened for modification	\??\c:\windows\SysWOW64\win32us.exe	56ca43ba032d7b7929cf2e28207be039.exe
File opened for modification	C:\Windows\SysWOW64\win32us.exe	56ca43ba032d7b7929cf2e28207be039.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2436	2276	56ca43ba032d7b7929cf2e28207be039.exe	27
PID 2276 wrote to memory of 2436	2276	56ca43ba032d7b7929cf2e28207be039.exe	27
PID 2276 wrote to memory of 2436	2276	56ca43ba032d7b7929cf2e28207be039.exe	27
PID 2276 wrote to memory of 2436	2276	56ca43ba032d7b7929cf2e28207be039.exe	27
PID 2436 wrote to memory of 2692	2436	win32us.exe	28
PID 2436 wrote to memory of 2692	2436	win32us.exe	28
PID 2436 wrote to memory of 2692	2436	win32us.exe	28
PID 2436 wrote to memory of 2692	2436	win32us.exe	28
PID 2692 wrote to memory of 2592	2692	win32us.exe	29
PID 2692 wrote to memory of 2592	2692	win32us.exe	29
PID 2692 wrote to memory of 2592	2692	win32us.exe	29
PID 2692 wrote to memory of 2592	2692	win32us.exe	29
PID 2592 wrote to memory of 1712	2592	win32us.exe	30
PID 2592 wrote to memory of 1712	2592	win32us.exe	30
PID 2592 wrote to memory of 1712	2592	win32us.exe	30
PID 2592 wrote to memory of 1712	2592	win32us.exe	30

C:\Users\Admin\AppData\Local\Temp\56ca43ba032d7b7929cf2e28207be039.exe
"C:\Users\Admin\AppData\Local\Temp\56ca43ba032d7b7929cf2e28207be039.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2276
- C:\windows\SysWOW64\win32us.exe
  "C:\windows\system32\win32us.exe" -kill c:\users\admin\appdata\local\temp\56ca43ba032d7b7929cf2e28207be039.exe /install
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2436
- - C:\windows\SysWOW64\win32us.exe
    "C:\windows\system32\win32us.exe" -kill c:\windows\syswow64\win32us.exe /install /install
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:2692
  - - C:\windows\SysWOW64\win32us.exe
      "C:\windows\system32\win32us.exe" -kill c:\windows\syswow64\win32us.exe /install /install /install
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of WriteProcessMemory
      PID:2592
    - - C:\windows\SysWOW64\win32us.exe
        
        "C:\windows\system32\win32us.exe" -kill c:\windows\syswow64\win32us.exe /install /install /install /install
        5⤵
        Executes dropped EXE
        
        PID:1712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\win32us.exe

Filesize
27KB

MD5
56ca43ba032d7b7929cf2e28207be039

SHA1
2fd42dec311104b87d601d406bb4fbd8c158a29f

SHA256
d0fff4c29b2105289d2bb121a80c990e3f7d110f89978a8e8254a9c6eba95784

SHA512
c62c8ad1d100e963505045c0b1fb95eb2896b90673b346c21d4a3f5d80b066320ee11284a45cf1e6b21158cde9fa35b43fb689f12f3a4957187b0dbaf7912820

Download Submit
memory/2276-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2276-6-0x0000000002810000-0x0000000002826000-memory.dmp

Filesize
88KB

Download
memory/2276-14-0x0000000002810000-0x0000000002826000-memory.dmp

Filesize
88KB

Download
memory/2276-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2436-22-0x0000000000850000-0x0000000000866000-memory.dmp

Filesize
88KB

Download
memory/2436-24-0x00000000026C0000-0x00000000026CD000-memory.dmp

Filesize
52KB

Download
memory/2436-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2692-27-0x0000000000470000-0x0000000000486000-memory.dmp

Filesize
88KB

Download
memory/2692-30-0x00000000026D0000-0x00000000026E6000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads