087e9a81b04a44b30129e4a69168f5cf5e426298d9120b48ff2e4b58e555a7d4

General

Target

c53c93775b5a9a3272fd3563c8019318.exe
Size

165KB
MD5

c53c93775b5a9a3272fd3563c8019318
SHA1

6e38f53abf812f454c76fc54377a98810b8b3606
SHA256

087e9a81b04a44b30129e4a69168f5cf5e426298d9120b48ff2e4b58e555a7d4
SHA512

e540e54652c5f67e9f6a9e81cf81ce10785a266f188a24724aa8f97a7a034ed979b77c01774fe9d0579b0a43c9f0a132301140cf36b619c13d19285d4cb8fa79
SSDEEP

3072:So5sJ/ko1ccfCTR9gjOIz4pW/7MNhyWHR:ERT1cACTfgjdkADMN9x

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	c53c93775b5a9a3272fd3563c8019318.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	c53c93775b5a9a3272fd3563c8019318.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe = "C:\\Users\\Public\\XI-H83DF-384922-JO\\winmsger.exe:*:Enabled:Exception Handler OEM"	c53c93775b5a9a3272fd3563c8019318.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	c53c93775b5a9a3272fd3563c8019318.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	c53c93775b5a9a3272fd3563c8019318.exe

Executes dropped EXE 2 IoCs

pid	Process
1136	winmsger.exe
4380	winmsger.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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Exception Handler OEM = "C:\\Users\\Public\\XI-H83DF-384922-JO\\winmsger.exe"	c53c93775b5a9a3272fd3563c8019318.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4304 set thread context of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 1136 set thread context of 4380	1136	winmsger.exe	94

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	c53c93775b5a9a3272fd3563c8019318.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 4304 wrote to memory of 2728	4304	c53c93775b5a9a3272fd3563c8019318.exe	92
PID 2728 wrote to memory of 1136	2728	c53c93775b5a9a3272fd3563c8019318.exe	93
PID 2728 wrote to memory of 1136	2728	c53c93775b5a9a3272fd3563c8019318.exe	93
PID 2728 wrote to memory of 1136	2728	c53c93775b5a9a3272fd3563c8019318.exe	93
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94
PID 1136 wrote to memory of 4380	1136	winmsger.exe	94

C:\Users\Admin\AppData\Local\Temp\c53c93775b5a9a3272fd3563c8019318.exe
"C:\Users\Admin\AppData\Local\Temp\c53c93775b5a9a3272fd3563c8019318.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Users\Admin\AppData\Local\Temp\c53c93775b5a9a3272fd3563c8019318.exe
  "C:\Users\Admin\AppData\Local\Temp\c53c93775b5a9a3272fd3563c8019318.exe"
  2⤵
  - Modifies firewall policy service
  - Checks computer location settings
  - Adds Run key to start application
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2728
- - C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe
    "C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1136
  - - C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe
      "C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe"
      4⤵
      Executes dropped EXE
      PID:4380

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Public\XI-H83DF-384922-JO\winmsger.exe

Filesize
165KB

MD5
c53c93775b5a9a3272fd3563c8019318

SHA1
6e38f53abf812f454c76fc54377a98810b8b3606

SHA256
087e9a81b04a44b30129e4a69168f5cf5e426298d9120b48ff2e4b58e555a7d4

SHA512
e540e54652c5f67e9f6a9e81cf81ce10785a266f188a24724aa8f97a7a034ed979b77c01774fe9d0579b0a43c9f0a132301140cf36b619c13d19285d4cb8fa79

Download Submit
memory/2728-0-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2728-2-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/2728-3-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4380-70-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/4380-73-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads