5f649def718c15e4d440c45617195f2bddf667f0bf8a7747693a872c1e876d65

Analysis

max time kernel
142s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 18:26

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General

Target

346f2a207c39a81489c1902229cab75c.exe
Size

64KB
MD5

346f2a207c39a81489c1902229cab75c
SHA1

a7658be38451f1c8c85e925b62fa762890cdcaa4
SHA256

5f649def718c15e4d440c45617195f2bddf667f0bf8a7747693a872c1e876d65
SHA512

626a77864bf3c77913ea3f6614af8fc331919df8c5528b09e82f0ed6845f8538bbe387b6dc11aed3c77222ba5cae3679a0df1ca19660cd284fa7f2dbc6908616
SSDEEP

1536:OudQailKET1c8TG1mS5nQzeZzLqNVH09D8EAOjgj7KS:zQailr5fTG1mSUgza09D8EC1

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
388	Tvdhda.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tvdhda = "C:\\Users\\Admin\\AppData\\Roaming\\Tvdhda.exe"	346f2a207c39a81489c1902229cab75c.exe

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078934"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078934"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078934"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1927370516"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1865963941"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410592053"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\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-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1865963941"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078934"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{982C18CC-A609-11EE-9A4E-527BFEDB591A} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1927370516"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4600	346f2a207c39a81489c1902229cab75c.exe
4600	346f2a207c39a81489c1902229cab75c.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	388	Tvdhda.exe
Token: SeDebugPrivilege	4976	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1804	IEXPLORE.EXE
1804	IEXPLORE.EXE
4976	IEXPLORE.EXE
4976	IEXPLORE.EXE
4976	IEXPLORE.EXE
4976	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4600 wrote to memory of 388	4600	346f2a207c39a81489c1902229cab75c.exe	97
PID 4600 wrote to memory of 388	4600	346f2a207c39a81489c1902229cab75c.exe	97
PID 4600 wrote to memory of 388	4600	346f2a207c39a81489c1902229cab75c.exe	97
PID 388 wrote to memory of 5108	388	Tvdhda.exe	99
PID 388 wrote to memory of 5108	388	Tvdhda.exe	99
PID 388 wrote to memory of 5108	388	Tvdhda.exe	99
PID 5108 wrote to memory of 1804	5108	iexplore.exe	100
PID 5108 wrote to memory of 1804	5108	iexplore.exe	100
PID 1804 wrote to memory of 4976	1804	IEXPLORE.EXE	101
PID 1804 wrote to memory of 4976	1804	IEXPLORE.EXE	101
PID 1804 wrote to memory of 4976	1804	IEXPLORE.EXE	101
PID 388 wrote to memory of 4976	388	Tvdhda.exe	101
PID 388 wrote to memory of 4976	388	Tvdhda.exe	101

C:\Users\Admin\AppData\Local\Temp\346f2a207c39a81489c1902229cab75c.exe
"C:\Users\Admin\AppData\Local\Temp\346f2a207c39a81489c1902229cab75c.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Users\Admin\AppData\Roaming\Tvdhda.exe
  "C:\Users\Admin\AppData\Roaming\Tvdhda.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5108
  - - 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:1804
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1804 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:4976

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k NetworkService -p -s TapiSrv
1⤵
PID:2580

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\ver725C.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6AXLYU2E\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
47KB

MD5
c7ef972e538ed50aae179ce1917f512a

SHA1
f58af6a1cd45c21135d457a891d347e77d7f35c7

SHA256
d873678e3b06b752e0070849176f2d9d21c787b22ebe325dfdb7bc3cf1c6f7b4

SHA512
7e2bfa10c8bbe1e141f52b203b36769d6ddd6e27706e04be6a7cf552bebe9586a5f17505498063125328c11f19fc3f614b37fd81e6604a3d449b28f2826e8dfb

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

Filesize
64KB

MD5
346f2a207c39a81489c1902229cab75c

SHA1
a7658be38451f1c8c85e925b62fa762890cdcaa4

SHA256
5f649def718c15e4d440c45617195f2bddf667f0bf8a7747693a872c1e876d65

SHA512
626a77864bf3c77913ea3f6614af8fc331919df8c5528b09e82f0ed6845f8538bbe387b6dc11aed3c77222ba5cae3679a0df1ca19660cd284fa7f2dbc6908616

Download Submit
memory/388-14-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/388-13-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/388-16-0x0000000000730000-0x0000000000731000-memory.dmp

Filesize
4KB

Download
memory/388-15-0x0000000000670000-0x000000000067E000-memory.dmp

Filesize
56KB

Download
memory/388-17-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4600-4-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4600-10-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4600-12-0x00000000006F0000-0x00000000006FE000-memory.dmp

Filesize
56KB

Download
memory/4600-3-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/4600-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4600-2-0x00000000006F0000-0x00000000006FE000-memory.dmp

Filesize
56KB

Download
memory/4600-1-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download