4bc648f7bd3b5828f50cb0224cfc044ef4c48404d29f224d23e16d5b96d9d5d9

General

Target

3536946859f8eb6a48e89acc386c64d9.exe
Size

116KB
MD5

3536946859f8eb6a48e89acc386c64d9
SHA1

2d66aed420f00d004b3c59e0754c78f24ddc0b9a
SHA256

4bc648f7bd3b5828f50cb0224cfc044ef4c48404d29f224d23e16d5b96d9d5d9
SHA512

c445beb5d9870c42deb0361cc176e11e18fa77b2b035ab3f088d9004e07c53ecaa6e9b85eb747bc7a87d767991f085d3ac290539a6dc0cf79026fc9299b443e9
SSDEEP

1536:jrQSpOrypW7uAq8+t5pIEOKO9+SZQUqdueOL9IPdVchC:j0SpOrygS8+tHBOKO9+8YkmPdV8

Score

10^/10

evasion persistence upx

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\AuthorizedApplications\List	3536946859f8eb6a48e89acc386c64d9.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	3536946859f8eb6a48e89acc386c64d9.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	3536946859f8eb6a48e89acc386c64d9.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Firewall Host\\cfmmon.exe"	3536946859f8eb6a48e89acc386c64d9.exe

Executes dropped EXE 2 IoCs

pid	Process
464	cfmmon.exe
2248	cfmmon.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2676-3-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2676-5-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2676-8-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2676-6-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2676-13-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/2248-25-0x0000000000400000-0x0000000000428000-memory.dmp	upx

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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cfmmon.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Firewall Host\\cfmmon.exe"	3536946859f8eb6a48e89acc386c64d9.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3616 set thread context of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 464 set thread context of 2248	464	cfmmon.exe	97

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3616	3536946859f8eb6a48e89acc386c64d9.exe
464	cfmmon.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 3616 wrote to memory of 2676	3616	3536946859f8eb6a48e89acc386c64d9.exe	93
PID 2676 wrote to memory of 464	2676	3536946859f8eb6a48e89acc386c64d9.exe	94
PID 2676 wrote to memory of 464	2676	3536946859f8eb6a48e89acc386c64d9.exe	94
PID 2676 wrote to memory of 464	2676	3536946859f8eb6a48e89acc386c64d9.exe	94
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97
PID 464 wrote to memory of 2248	464	cfmmon.exe	97

C:\Users\Admin\AppData\Local\Temp\3536946859f8eb6a48e89acc386c64d9.exe
"C:\Users\Admin\AppData\Local\Temp\3536946859f8eb6a48e89acc386c64d9.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3616
- C:\Users\Admin\AppData\Local\Temp\3536946859f8eb6a48e89acc386c64d9.exe
  "C:\Users\Admin\AppData\Local\Temp\3536946859f8eb6a48e89acc386c64d9.exe"
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe
    "C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe" in
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:464
  - - C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe
      "C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe"
      4⤵
      Executes dropped EXE
      PID:2248

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Firewall Host\cfmmon.exe

Filesize
116KB

MD5
3536946859f8eb6a48e89acc386c64d9

SHA1
2d66aed420f00d004b3c59e0754c78f24ddc0b9a

SHA256
4bc648f7bd3b5828f50cb0224cfc044ef4c48404d29f224d23e16d5b96d9d5d9

SHA512
c445beb5d9870c42deb0361cc176e11e18fa77b2b035ab3f088d9004e07c53ecaa6e9b85eb747bc7a87d767991f085d3ac290539a6dc0cf79026fc9299b443e9

Download Submit
memory/464-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/464-24-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2248-25-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2676-3-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2676-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2676-8-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2676-6-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2676-13-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3616-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/3616-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads