09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24/11/2022, 00:33

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
Size 192KB
Sample221124-av7raafd72
SHA256 09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103
MD5 021cd58e12a7d86c444f583b31f44ff7
SHA1 d728e22e55faebb594737fde7d7b55d995ee1d64
SHA512 d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5
SSDEEP 3072:c3HPLdlR5/hfZMhAXyATe7iV550AEVT6aBQwxd/1zu4Yjx:cXBlRlVZxxgYzW6avOx
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3868	Zezlzk.exe
3132	Zezlzk.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Zezlzk = "C:\\Users\\Admin\\AppData\\Roaming\\Zezlzk.exe"	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4920 set thread context of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 3868 set thread context of 3132	3868	Zezlzk.exe	83

Modifies Internet Explorer settings 1 TTPs 20 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375429032"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1619045578"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30998468"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8BF5BEE1-6BB7-11ED-89AC-5E3721E937B7} = "0"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30998468"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1619045578"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3132	Zezlzk.exe
Token: SeDebugPrivilege	4780	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4944	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4944	IEXPLORE.EXE
4944	IEXPLORE.EXE
4780	IEXPLORE.EXE
4780	IEXPLORE.EXE
4780	IEXPLORE.EXE
4780	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	81
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	82
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	82
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	82
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	83
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	85
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	85
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	85
PID 4500 wrote to memory of 4944	4500	iexplore.exe	86
PID 4500 wrote to memory of 4944	4500	iexplore.exe	86
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	87
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	87
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	87
PID 3132 wrote to memory of 4780	3132	Zezlzk.exe	87
PID 3132 wrote to memory of 4780	3132	Zezlzk.exe	87

C:\Users\Admin\AppData\Local\Temp\09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
"C:\Users\Admin\AppData\Local\Temp\09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4920
- C:\Users\Admin\AppData\Local\Temp\09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
  C:\Users\Admin\AppData\Local\Temp\09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4048
- - C:\Users\Admin\AppData\Roaming\Zezlzk.exe
    "C:\Users\Admin\AppData\Roaming\Zezlzk.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3868
  - - C:\Users\Admin\AppData\Roaming\Zezlzk.exe
      C:\Users\Admin\AppData\Roaming\Zezlzk.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3132
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:4500
      - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4944
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4944 CREDAT:17410 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:4780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

Zezlzk.exe

Path C:\Users\Admin\AppData\Roaming\Zezlzk.exe
Size 192KB
SHA256 09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103
MD5 021cd58e12a7d86c444f583b31f44ff7
SHA1 d728e22e55faebb594737fde7d7b55d995ee1d64
SHA512 d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5
SSDEEP 3072:c3HPLdlR5/hfZMhAXyATe7iV550AEVT6aBQwxd/1zu4Yjx:cXBlRlVZxxgYzW6avOx
MD5 SHA1 SHA512 SSDEEP

Submit Download

Zezlzk.exe

Path C:\Users\Admin\AppData\Roaming\Zezlzk.exe
Size 192KB
SHA256 09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103
MD5 021cd58e12a7d86c444f583b31f44ff7
SHA1 d728e22e55faebb594737fde7d7b55d995ee1d64
SHA512 d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5
SSDEEP 3072:c3HPLdlR5/hfZMhAXyATe7iV550AEVT6aBQwxd/1zu4Yjx:cXBlRlVZxxgYzW6avOx
MD5 SHA1 SHA512 SSDEEP

Submit Download

Zezlzk.exe

Path C:\Users\Admin\AppData\Roaming\Zezlzk.exe
Size 192KB
SHA256 09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103
MD5 021cd58e12a7d86c444f583b31f44ff7
SHA1 d728e22e55faebb594737fde7d7b55d995ee1d64
SHA512 d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5
SSDEEP 3072:c3HPLdlR5/hfZMhAXyATe7iV550AEVT6aBQwxd/1zu4Yjx:cXBlRlVZxxgYzW6avOx
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3132-146-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/3132-147-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/4048-133-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/4048-135-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/4048-136-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/4048-143-0x0000000000400000-0x0000000000429000-memory.dmp

Download