b72d6599b05bda384c33103b71969d3cbeffc43f910bbde72395108b4aa6e8c5

Analysis

max time kernel
91s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 11:35

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General

Target
c5c64378e4149a3c58d85d2e9145a397.exe
Size 183KB
Sample240313-np33ssdg68
SHA256 b72d6599b05bda384c33103b71969d3cbeffc43f910bbde72395108b4aa6e8c5
MD5 c5c64378e4149a3c58d85d2e9145a397
SHA1 af21f900086baf64f109d74fe22ff0575e22fefa
SHA512 e8fa77c70689186f707ffc89e71e3b3068bf523ff99ff38268311fde8edac0f960fabbbe2e05b0cf6c9f226484b49af90787b5c8ba1e51705398270c9526f348
SSDEEP 3072:GTl6dciOrTFWCZttR8kMHfp76OiKABadqoKOqm0CpWPGhGdeadgtdKVhLN7wpDGw:2lJUWR8kMHd6rBadqohqOhGdItdK9iGw
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	c5c64378e4149a3c58d85d2e9145a397.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "1"	c5c64378e4149a3c58d85d2e9145a397.exe

Drops file in Drivers directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\system32\drivers\etc\hosts	c5c64378e4149a3c58d85d2e9145a397.exe
File created	C:\WINDOWS\system32\drivers\etc\hosts	c5c64378e4149a3c58d85d2e9145a397.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msscp.reg	c5c64378e4149a3c58d85d2e9145a397.exe
File opened for modification	C:\Windows\SysWOW64\msscp.reg	c5c64378e4149a3c58d85d2e9145a397.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\taobao.ico	c5c64378e4149a3c58d85d2e9145a397.exe
File opened for modification	C:\Program Files\Common Files\System\taobao.ico	c5c64378e4149a3c58d85d2e9145a397.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key deleted	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\MICROSOFT\INTERNET EXPLORER\TYPEDURLS	c5c64378e4149a3c58d85d2e9145a397.exe

Modifies Internet Explorer start page 1 TTPs 2 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://t.wozhao123.com"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\Main\Start Page = "http://t.wozhao123.com"	c5c64378e4149a3c58d85d2e9145a397.exe

Modifies registry class 31 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell\open	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "C:\\Program Files\\internet explorer\\IEXPLORE.EXE,0"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PlayFlashDXA	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.html	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\ = "htmfileico"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "C:\\Program Files\\internet explorer\\IEXPLORE.EXE,0"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.html	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlayFlashDXA\1 = "20240313"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell\open\command	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.html\ = "htmlfile"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.htm	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell\open\command	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlayFlashDXA\cdafile2 = "221545"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\DefaultIcon\ = "C:\\Program Files\\Common Files\\System\\taobao.ico"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell\open\command\ = "\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" \"%1\""	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\shell\open\command\ = "\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" \"%1\""	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlayFlashDXA\9 = "0"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.htm	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.htm\ = "htmfile"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.htm\ = "htmfile"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\DefaultIcon	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\PlayFlashDXA\9 = "1"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000_Classes\.html\ = "htmlfile"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\ = "htmfileico"	c5c64378e4149a3c58d85d2e9145a397.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\DefaultIcon\ = "C:\\Program Files\\Common Files\\System\\taobao.ico"	c5c64378e4149a3c58d85d2e9145a397.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\htmfile\DefaultIcon	c5c64378e4149a3c58d85d2e9145a397.exe

Runs .reg file with regedit 2 IoCs

pid	Process
896	regedit.exe
1900	regedit.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 976 wrote to memory of 896	976	c5c64378e4149a3c58d85d2e9145a397.exe	85
PID 976 wrote to memory of 896	976	c5c64378e4149a3c58d85d2e9145a397.exe	85
PID 976 wrote to memory of 896	976	c5c64378e4149a3c58d85d2e9145a397.exe	85
PID 976 wrote to memory of 2420	976	c5c64378e4149a3c58d85d2e9145a397.exe	86
PID 976 wrote to memory of 2420	976	c5c64378e4149a3c58d85d2e9145a397.exe	86
PID 976 wrote to memory of 2420	976	c5c64378e4149a3c58d85d2e9145a397.exe	86
PID 2420 wrote to memory of 1900	2420	c5c64378e4149a3c58d85d2e9145a397.exe	87
PID 2420 wrote to memory of 1900	2420	c5c64378e4149a3c58d85d2e9145a397.exe	87
PID 2420 wrote to memory of 1900	2420	c5c64378e4149a3c58d85d2e9145a397.exe	87

C:\Users\Admin\AppData\Local\Temp\c5c64378e4149a3c58d85d2e9145a397.exe
"C:\Users\Admin\AppData\Local\Temp\c5c64378e4149a3c58d85d2e9145a397.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Drops file in Drivers directory
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:976
- C:\Windows\SysWOW64\regedit.exe
  C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
  2⤵
  - Runs .reg file with regedit
  PID:896
- C:\Users\Admin\AppData\Local\Temp\c5c64378e4149a3c58d85d2e9145a397.exe
  C:\Users\Admin\AppData\Local\Temp\c5c64378e4149a3c58d85d2e9145a397.exe
  2⤵
  - Modifies visibility of file extensions in Explorer
  - Drops file in Drivers directory
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Modifies Internet Explorer start page
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Windows\SysWOW64\regedit.exe
    C:\Windows\regedit.exe /S C:\Windows\system32\msscp.reg
    3⤵
    - Runs .reg file with regedit
    PID:1900

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

taobao.ico

Path C:\Program Files\Common Files\System\taobao.ico
Size 14KB
SHA256 091c882bb307d57f2c7c42309e7ba8740130fef8c3ed772b0bc5e5505e37034d
MD5 468fada123f5548ac87e57bae81f6782
SHA1 edb8f012c25906e6afd8bf335b495e16c440243d
SHA512 635ec26c88c2394dd4f2a81b9aea8f429a91adfeb37ae34e51b03f3cf8e503c123c3685938f40cea07d6146e0c7113aadbe62fa528f1f6d8b995e617fd68a4aa
SSDEEP 384:jdsFALc7CTsMVlmVrgDZZPZ9jWgtPnqNIcTj:Rbc765DmODZZPZB52jv
MD5 SHA1 SHA512 SSDEEP

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hosts

Path C:\WINDOWS\system32\drivers\etc\hosts
Size 1KB
SHA256 878126f2a00b67331d99b05158498b0ad40217de099a5b3534d1b7aeb3a35d19
MD5 04582f0454992dcdd3c384d0730a98a1
SHA1 52296a9dac4ee0876fefb42fd1a1c588ae3a865f
SHA512 2db49de10dd7b1fc27ae838fab4441e76aeae151b55de7b29f10c4750b5ed29a692f496cb7b5e01021a5cac8482deeb74687d88a016cb82b6ef9814a855cefc5
MD5 SHA1 SHA512

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msscp.reg

Path C:\Windows\SysWOW64\msscp.reg
Size 336B
SHA256 658a998e67711f328b0a8a5dd1ccb6738d0fc0abd0351c71270c4fc4b490fa71
MD5 45c2ffcb48ade649255bc861d1928963
SHA1 4a7042765fab8063c2383fb9cde3a4ece24a0628
SHA512 70cfa5b430e18a589e0d88284d5a79433a3b7351767ccf1500349b8e44ab2a8f3c5dffd86124cccf4b326dac5f93dd3ef7c48873fa58c0b3413eb629ef9c53db
MD5 SHA1 SHA512

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memory/976-0-0x0000000000400000-0x000000000047D000-memory.dmp

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memory/976-1-0x0000000002360000-0x0000000002361000-memory.dmp

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memory/976-26-0x0000000000400000-0x000000000047D000-memory.dmp

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memory/2420-5-0x0000000000400000-0x000000000047D000-memory.dmp

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memory/2420-9-0x0000000002110000-0x0000000002111000-memory.dmp

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memory/2420-23-0x0000000000400000-0x000000000047D000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads