09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103

General

Target

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
Size

192KB
MD5

021cd58e12a7d86c444f583b31f44ff7
SHA1

d728e22e55faebb594737fde7d7b55d995ee1d64
SHA256

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103
SHA512

d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5
SSDEEP

3072:c3HPLdlR5/hfZMhAXyATe7iV550AEVT6aBQwxd/1zu4Yjx:cXBlRlVZxxgYzW6avOx

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Zezlzk.exeZezlzk.exe

pid process

3868 Zezlzk.exe
3132 Zezlzk.exe

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

Processes:

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe

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

Processes:

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exeZezlzk.exe

description	pid	process	target process
PID 4920 set thread context of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 3868 set thread context of 3132	3868	Zezlzk.exe	Zezlzk.exe

Modifies Internet Explorer settings 1 TTPs 20 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXEIEXPLORE.EXE

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

Processes:

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe

pid	process
4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Zezlzk.exeIEXPLORE.EXE

description pid process

Token: SeDebugPrivilege 3132 Zezlzk.exe
Token: SeDebugPrivilege 4780 IEXPLORE.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

IEXPLORE.EXE

pid process

4944 IEXPLORE.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

IEXPLORE.EXEIEXPLORE.EXE

pid process

4944 IEXPLORE.EXE
4944 IEXPLORE.EXE
4780 IEXPLORE.EXE
4780 IEXPLORE.EXE
4780 IEXPLORE.EXE
4780 IEXPLORE.EXE

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

pid	process
4944	IEXPLORE.EXE

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

Processes:

09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exeZezlzk.exeZezlzk.exeiexplore.exeIEXPLORE.EXE

description	pid	process	target process
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4920 wrote to memory of 4048	4920	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	Zezlzk.exe
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	Zezlzk.exe
PID 4048 wrote to memory of 3868	4048	09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3868 wrote to memory of 3132	3868	Zezlzk.exe	Zezlzk.exe
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	iexplore.exe
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	iexplore.exe
PID 3132 wrote to memory of 4500	3132	Zezlzk.exe	iexplore.exe
PID 4500 wrote to memory of 4944	4500	iexplore.exe	IEXPLORE.EXE
PID 4500 wrote to memory of 4944	4500	iexplore.exe	IEXPLORE.EXE
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	IEXPLORE.EXE
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	IEXPLORE.EXE
PID 4944 wrote to memory of 4780	4944	IEXPLORE.EXE	IEXPLORE.EXE
PID 3132 wrote to memory of 4780	3132	Zezlzk.exe	IEXPLORE.EXE
PID 3132 wrote to memory of 4780	3132	Zezlzk.exe	IEXPLORE.EXE

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

1

T1060

Privilege Escalation

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\Zezlzk.exe

Filesize
192KB

MD5
021cd58e12a7d86c444f583b31f44ff7

SHA1
d728e22e55faebb594737fde7d7b55d995ee1d64

SHA256
09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103

SHA512
d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5

Download Submit
C:\Users\Admin\AppData\Roaming\Zezlzk.exe

Filesize
192KB

MD5
021cd58e12a7d86c444f583b31f44ff7

SHA1
d728e22e55faebb594737fde7d7b55d995ee1d64

SHA256
09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103

SHA512
d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5

Download Submit
C:\Users\Admin\AppData\Roaming\Zezlzk.exe

Filesize
192KB

MD5
021cd58e12a7d86c444f583b31f44ff7

SHA1
d728e22e55faebb594737fde7d7b55d995ee1d64

SHA256
09657b64265c28fc390a4a3abaa54c4c04bec128e7b7796d8f778958d6f93103

SHA512
d8001a66b68efa5f9d0f04748492b4f2396405d4b086654344bce7393ad0e65e853d77d55ec7cd9af74c1b954d33d0b58f17565152f6ecc1b186fa717c09e8b5

Download Submit
memory/3132-140-0x0000000000000000-mapping.dmp

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

Filesize
164KB

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

Filesize
164KB

Download
memory/3868-137-0x0000000000000000-mapping.dmp

Download
memory/4048-132-0x0000000000000000-mapping.dmp

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

Filesize
164KB

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

Filesize
164KB

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

Filesize
164KB

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

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads