a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f

General

Target

a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
Size

53KB
MD5

8400820fbbc384feaec5e28558139052
SHA1

806a60eca38e7932acd2d9995a29512f0f2ce5e3
SHA256

a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f
SHA512

da0d598607a8f30b45075936afcb527afc76cc089a21c9ee1a82022ab0d9f91990017ce45f4f19a9301350972b8d54205e55dea7fe23876e92b90beb76a80bd3
SSDEEP

768:745U2Bvzx4n8l6LqAAMAZnjFy91QxEpXts3l11ecrAG726jdpI9GHDe28X9:745BuHAzZyTFVqIAAuL7DW9

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\msnmgr.exe"	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Local\Temp\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe:*:Enabled:Userinit"	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe

Executes dropped EXE 2 IoCs

pid	Process
1508	msnmgr.exe
64	msnmgr.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5028 set thread context of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 1508 set thread context of 64	1508	msnmgr.exe	83

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\msnmgr.exe	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
File opened for modification	C:\Windows\msnmgr.exe	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 5028 wrote to memory of 2192	5028	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	81
PID 2192 wrote to memory of 1508	2192	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	82
PID 2192 wrote to memory of 1508	2192	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	82
PID 2192 wrote to memory of 1508	2192	a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe	82
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83
PID 1508 wrote to memory of 64	1508	msnmgr.exe	83

C:\Users\Admin\AppData\Local\Temp\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
"C:\Users\Admin\AppData\Local\Temp\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Users\Admin\AppData\Local\Temp\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe
  "C:\Users\Admin\AppData\Local\Temp\a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Modifies firewall policy service
  - Modifies WinLogon
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Windows\msnmgr.exe
    "C:\Windows\msnmgr.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1508
  - - C:\Windows\msnmgr.exe
      "C:\Windows\msnmgr.exe"
      4⤵
      Executes dropped EXE
      PID:64

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\msnmgr.exe

Filesize
53KB

MD5
8400820fbbc384feaec5e28558139052

SHA1
806a60eca38e7932acd2d9995a29512f0f2ce5e3

SHA256
a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f

SHA512
da0d598607a8f30b45075936afcb527afc76cc089a21c9ee1a82022ab0d9f91990017ce45f4f19a9301350972b8d54205e55dea7fe23876e92b90beb76a80bd3

Download Submit
C:\Windows\msnmgr.exe

Filesize
53KB

MD5
8400820fbbc384feaec5e28558139052

SHA1
806a60eca38e7932acd2d9995a29512f0f2ce5e3

SHA256
a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f

SHA512
da0d598607a8f30b45075936afcb527afc76cc089a21c9ee1a82022ab0d9f91990017ce45f4f19a9301350972b8d54205e55dea7fe23876e92b90beb76a80bd3

Download Submit
C:\Windows\msnmgr.exe

Filesize
53KB

MD5
8400820fbbc384feaec5e28558139052

SHA1
806a60eca38e7932acd2d9995a29512f0f2ce5e3

SHA256
a89aa325dd9cab012b6507d0b5d3ef4d5a037d6db170350df93c5f704dfab95f

SHA512
da0d598607a8f30b45075936afcb527afc76cc089a21c9ee1a82022ab0d9f91990017ce45f4f19a9301350972b8d54205e55dea7fe23876e92b90beb76a80bd3

Download Submit
memory/2192-133-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2192-134-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2192-135-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2192-137-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads