e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af

Analysis

max time kernel
182s
max time network
200s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06/12/2022, 13:48

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General

Target

e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
Size

156KB
MD5

1ad484c4aa3f891b622b451943badd53
SHA1

c8fefcf2edd27ff5c9bdcc2daef4e663d0a61e6f
SHA256

e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af
SHA512

f7243c48367367d15f133f14b2335e7bd2955eed9de973bc7e6f2de25afb3aa61fffbca24d1086af950cf82c394a9f6d9a999180eb106d1b00e948fcecd03f55
SSDEEP

1536:zk18DMBo98dxAmL56yC6gm/lyP6p6O98eRRFgbl6Hj1zExnbmbrNYqyUipqJTnor:4WDwo94xActp59vDg5RnO6qKoJTnEjF

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4324	Kysgsq.exe
644	Kysgsq.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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kysgsq = "C:\\Users\\Admin\\AppData\\Roaming\\Kysgsq.exe"	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4084 set thread context of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4324 set thread context of 644	4324	Kysgsq.exe	84

Modifies Internet Explorer settings 1 TTPs 18 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2504560341"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2504560341"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B27B70B4-7902-11ED-919F-621DF61BAEF5} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31001871"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001871"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2068	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
2068	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	644	Kysgsq.exe
Token: SeDebugPrivilege	4520	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1248	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1248	IEXPLORE.EXE
1248	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE
4520	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 4084 wrote to memory of 2068	4084	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	82
PID 2068 wrote to memory of 4324	2068	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	83
PID 2068 wrote to memory of 4324	2068	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	83
PID 2068 wrote to memory of 4324	2068	e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe	83
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 4324 wrote to memory of 644	4324	Kysgsq.exe	84
PID 644 wrote to memory of 2872	644	Kysgsq.exe	85
PID 644 wrote to memory of 2872	644	Kysgsq.exe	85
PID 644 wrote to memory of 2872	644	Kysgsq.exe	85
PID 2872 wrote to memory of 1248	2872	iexplore.exe	86
PID 2872 wrote to memory of 1248	2872	iexplore.exe	86
PID 1248 wrote to memory of 4520	1248	IEXPLORE.EXE	87
PID 1248 wrote to memory of 4520	1248	IEXPLORE.EXE	87
PID 1248 wrote to memory of 4520	1248	IEXPLORE.EXE	87
PID 644 wrote to memory of 4520	644	Kysgsq.exe	87
PID 644 wrote to memory of 4520	644	Kysgsq.exe	87

C:\Users\Admin\AppData\Local\Temp\e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
"C:\Users\Admin\AppData\Local\Temp\e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Users\Admin\AppData\Local\Temp\e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
  C:\Users\Admin\AppData\Local\Temp\e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af.exe
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2068
- - C:\Users\Admin\AppData\Roaming\Kysgsq.exe
    "C:\Users\Admin\AppData\Roaming\Kysgsq.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4324
  - - C:\Users\Admin\AppData\Roaming\Kysgsq.exe
      C:\Users\Admin\AppData\Roaming\Kysgsq.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:644
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:2872
      - 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:1248
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1248 CREDAT:17410 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:4520

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

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Downloads

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

Filesize
156KB

MD5
1ad484c4aa3f891b622b451943badd53

SHA1
c8fefcf2edd27ff5c9bdcc2daef4e663d0a61e6f

SHA256
e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af

SHA512
f7243c48367367d15f133f14b2335e7bd2955eed9de973bc7e6f2de25afb3aa61fffbca24d1086af950cf82c394a9f6d9a999180eb106d1b00e948fcecd03f55

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

Filesize
156KB

MD5
1ad484c4aa3f891b622b451943badd53

SHA1
c8fefcf2edd27ff5c9bdcc2daef4e663d0a61e6f

SHA256
e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af

SHA512
f7243c48367367d15f133f14b2335e7bd2955eed9de973bc7e6f2de25afb3aa61fffbca24d1086af950cf82c394a9f6d9a999180eb106d1b00e948fcecd03f55

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

Filesize
156KB

MD5
1ad484c4aa3f891b622b451943badd53

SHA1
c8fefcf2edd27ff5c9bdcc2daef4e663d0a61e6f

SHA256
e334139d9637f663e9343eda8826876835da4eb65406564bad3a409f4be935af

SHA512
f7243c48367367d15f133f14b2335e7bd2955eed9de973bc7e6f2de25afb3aa61fffbca24d1086af950cf82c394a9f6d9a999180eb106d1b00e948fcecd03f55

Download Submit
memory/644-149-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/644-150-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2068-134-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2068-137-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2068-138-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2068-143-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4084-135-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4084-132-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4324-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download