e20a62be009f8bf8d81a05e6fe3542f6e0ba8d941a58c95bb0882c4832681893

Analysis

max time kernel
137s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 23:09

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General

Target

4a04435c8828bd8bc526461ad4ace11d.exe
Size

1.2MB
MD5

4a04435c8828bd8bc526461ad4ace11d
SHA1

798887d48a93bab2665a5b74cebe0fa6119d4651
SHA256

e20a62be009f8bf8d81a05e6fe3542f6e0ba8d941a58c95bb0882c4832681893
SHA512

285cfdd34ebbd557d1e5bf3030b51271082fc507e2c0f95626d5f65d659a0237934feaebbce52884c54dc2efcc22e7f1de1fb3fefc2d1dc65ed510a90e8adf18
SSDEEP

12288:eZD/lIHhTv4Iu0UdP6BKhr//VLTRGWfxlezy9m1gsvW9J85mAvGW77gSw7Ww:ADGBTwITq6grHVLTMaloyMvWb6ob7W

Score

8^/10

persistence

Malware Config

Signatures

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{0GGD48RD-3SR1-5758-FUE0-6KI40F7UB203}	4a04435c8828bd8bc526461ad4ace11d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{0GGD48RD-3SR1-5758-FUE0-6KI40F7UB203}\StubPath = "C:\\Windows\\help\\smsss.exe Restart"	4a04435c8828bd8bc526461ad4ace11d.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\smsss = "C:\\Windows\\help\\smsss.exe"	4a04435c8828bd8bc526461ad4ace11d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\servicess = "C:\\Windows\\help\\smsss.exe"	4a04435c8828bd8bc526461ad4ace11d.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1516 set thread context of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 3468 set thread context of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 4428 set thread context of 0	4428	4a04435c8828bd8bc526461ad4ace11d.exe
PID 4428 set thread context of 1028	4428	4a04435c8828bd8bc526461ad4ace11d.exe	94

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\help\smsss.exe	4a04435c8828bd8bc526461ad4ace11d.exe
File opened for modification	C:\Windows\help\smsss.exe	4a04435c8828bd8bc526461ad4ace11d.exe

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2894599783"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2894599783"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31080894"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31080894"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2980537388"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D5390E47-ADB1-11EE-8024-7672481B3261} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2980537388"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411433956"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31080894"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31080894"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4428	4a04435c8828bd8bc526461ad4ace11d.exe
4428	4a04435c8828bd8bc526461ad4ace11d.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1028	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1028	iexplore.exe
1028	iexplore.exe
1360	IEXPLORE.EXE
1360	IEXPLORE.EXE
1360	IEXPLORE.EXE
1360	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1516 wrote to memory of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 1516 wrote to memory of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 1516 wrote to memory of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 1516 wrote to memory of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 1516 wrote to memory of 3468	1516	4a04435c8828bd8bc526461ad4ace11d.exe	89
PID 3468 wrote to memory of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 3468 wrote to memory of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 3468 wrote to memory of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 3468 wrote to memory of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 3468 wrote to memory of 4428	3468	4a04435c8828bd8bc526461ad4ace11d.exe	90
PID 4428 wrote to memory of 1028	4428	4a04435c8828bd8bc526461ad4ace11d.exe	94
PID 4428 wrote to memory of 1028	4428	4a04435c8828bd8bc526461ad4ace11d.exe	94
PID 4428 wrote to memory of 1028	4428	4a04435c8828bd8bc526461ad4ace11d.exe	94
PID 1028 wrote to memory of 1360	1028	iexplore.exe	95
PID 1028 wrote to memory of 1360	1028	iexplore.exe	95
PID 1028 wrote to memory of 1360	1028	iexplore.exe	95

C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe
"C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1516
- C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe
  C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe
    "C:\Users\Admin\AppData\Local\Temp\4a04435c8828bd8bc526461ad4ace11d.exe"
    3⤵
    - Modifies Installed Components in the registry
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4428
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1028
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1028 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1360

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\Local\Microsoft\Internet Explorer\VersionManager\ver4198.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DV2I56HE\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1028-16-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download
memory/1516-4-0x0000000000010000-0x0000000000149000-memory.dmp

Filesize
1.2MB

Download
memory/3468-9-0x0000000053140000-0x00000000532B9000-memory.dmp

Filesize
1.5MB

Download
memory/3468-11-0x0000000053140000-0x00000000532B9000-memory.dmp

Filesize
1.5MB

Download
memory/3468-1-0x0000000053140000-0x00000000532B9000-memory.dmp

Filesize
1.5MB

Download
memory/3468-6-0x0000000053140000-0x00000000532B9000-memory.dmp

Filesize
1.5MB

Download
memory/3468-5-0x0000000053140000-0x00000000532B9000-memory.dmp

Filesize
1.5MB

Download
memory/4428-8-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download
memory/4428-12-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download
memory/4428-17-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download
memory/4428-13-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download
memory/4428-10-0x0000000033140000-0x00000000331A4000-memory.dmp

Filesize
400KB

Download