f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5

Analysis

max time kernel
205s
max time network
247s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 03:12

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General

Target

f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
Size

108KB
MD5

62b2845c8526d0427800505bd3fb841b
SHA1

54c3b7a6668bd90c4ae491bb6aa990f35b35243b
SHA256

f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5
SHA512

1f5eca6a1123249551bf159617149c6195a2eab46dc5f7c5bad4d314c942c022392e0bcfcb5ba65bd30f6e999bffbf1193e081b588fe46bc7a461273d1538321
SSDEEP

1536:Q5eGgiOaTV+BA5uIpZo/QGoGG8betK4pkSQsVEj:Q5eLiO7GSuGGJ0V+Vm

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe \"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe

Executes dropped EXE 1 IoCs

pid	Process
1492	lsass.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
4888	netsh.exe

Adds Run key to start application 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	lsass.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	lsass.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	lsass.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\lsass.exe\""	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
1492	lsass.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 4888	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	81
PID 4840 wrote to memory of 4888	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	81
PID 4840 wrote to memory of 4888	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	81
PID 4840 wrote to memory of 1492	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	83
PID 4840 wrote to memory of 1492	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	83
PID 4840 wrote to memory of 1492	4840	f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe	83

C:\Users\Admin\AppData\Local\Temp\f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
"C:\Users\Admin\AppData\Local\Temp\f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4840
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\lsass.exe" CityScape Enable
  2⤵
  - Modifies Windows Firewall
  PID:4888
- C:\Users\Admin\AppData\Roaming\lsass.exe
  /d C:\Users\Admin\AppData\Local\Temp\f94f453101a64eea061afffa5c35c95d1fce1ccf26583872f19a9e2a68be40c5.exe
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:1492

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
108KB

MD5
09698791cc99e3197344f26604a02fc5

SHA1
23969b4f75b728dcd14b9c6918d0196db652f743

SHA256
72b5b4ac5d54c5c00323fa49472b0efab29759bf38a6e71b0c29ad9e9c1ba852

SHA512
dc3c1b3bdbb0866ba482022f7ba273460953cc27d5af0ec21d10d3cdd8793c3ad3f6dbd0a9a4b79291300ee76e4b259593789b81325b7020ff355d4491964833

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C:\Users\Admin\AppData\Roaming\lsass.exe

Filesize
108KB

MD5
09698791cc99e3197344f26604a02fc5

SHA1
23969b4f75b728dcd14b9c6918d0196db652f743

SHA256
72b5b4ac5d54c5c00323fa49472b0efab29759bf38a6e71b0c29ad9e9c1ba852

SHA512
dc3c1b3bdbb0866ba482022f7ba273460953cc27d5af0ec21d10d3cdd8793c3ad3f6dbd0a9a4b79291300ee76e4b259593789b81325b7020ff355d4491964833

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads