cc2c8bead42e807334275c9b4c42c8f462a1053e4f7e7480119600e377860cfe

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 11:24

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General

Target

$TEMP/msearch.exe
Size

58KB
MD5

b7e8059927e84385fdf6bc7d73a072e0
SHA1

387b5bd41d1833119b7a936781f561de2bcf9ef8
SHA256

bd46c539a3bacd4f40171bc441f0baa9aea1821d539e5b94212efae69931a316
SHA512

3335e7c4e9497b4bd5f6cecd114aa62b11d8ea4fd0fcbfdc013b1af8c5872a5a77c917f7b28891fd6d0c6b789b7677060d14badf1f9794580a2a2969cb68202e
SSDEEP

1536:vUkhxvEP3fMYqM3WPVjyviqoXqtjqENd/avWX9ws3ic:MWM/fMYr3gVwi0tuC/auX9s

Score

7^/10

adware discovery persistence stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2488	MSearch.exe

Loads dropped DLL 1 IoCs

pid	Process
4780	regsvr32.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral8/memory/2336-0-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral8/memory/2336-23-0x0000000000400000-0x000000000042E000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSearch = "C:\\Program Files (x86)\\MSearch\\MSearch.exe"	MSearch.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}	regsvr32.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\MSearch\MSearch.dll	msearch.exe
File created	C:\Program Files (x86)\MSearch\MSearch.exe	msearch.exe
File created	C:\Program Files (x86)\MSearch\uninstall.exe	msearch.exe
File created	C:\Program Files (x86)\MSearch\Install.ini	msearch.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSearch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msearch.exe

Modifies registry class 46 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl\CLSID\ = "{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\0\win32\ = "C:\\Program Files (x86)\\MSearch\\MSearch.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\HELPDIR\ = "C:\\Program Files (x86)\\MSearch\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl.1\CLSID\ = "{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl\CurVer\ = "MSearch.MSearchCtl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\ProgID\ = "MSearch.MSearchCtl.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib\ = "{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib\ = "{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\InprocServer32\ = "C:\\Program Files (x86)\\MSearch\\MSearch.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ = "IMSearchCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\VersionIndependentProgID\ = "MSearch.MSearchCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\TypeLib\ = "{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ = "IMSearchCtl"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl.1\ = "MSearchCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\ = "MSearchCtl Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{6C9E3E05-B7E1-4C8D-AB28-44682ADA8CFD}\1.0\ = "MSearch 1.0 Type Library"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSearch.MSearchCtl\ = "MSearchCtl Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0C08C21C-9E7B-45CD-A9FB-C2EA2574DCAA}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8FBBF5C6-E439-4B07-8D31-FD6F6DB616E9}\TypeLib	regsvr32.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2336	msearch.exe
2336	msearch.exe
2336	msearch.exe
2336	msearch.exe
2488	MSearch.exe
2488	MSearch.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2336 wrote to memory of 4780	2336	msearch.exe	82
PID 2336 wrote to memory of 4780	2336	msearch.exe	82
PID 2336 wrote to memory of 4780	2336	msearch.exe	82
PID 2336 wrote to memory of 2488	2336	msearch.exe	83
PID 2336 wrote to memory of 2488	2336	msearch.exe	83
PID 2336 wrote to memory of 2488	2336	msearch.exe	83

C:\Users\Admin\AppData\Local\Temp\$TEMP\msearch.exe
"C:\Users\Admin\AppData\Local\Temp\$TEMP\msearch.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2336
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 /s "C:\Program Files (x86)\MSearch\MSearch.dll"
  2⤵
  - Loads dropped DLL
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4780
- C:\Program Files (x86)\MSearch\MSearch.exe
  "C:\Program Files (x86)\MSearch\MSearch.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2488

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

Browser Extensions

T1176

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\MSearch\Install.ini

Filesize
226B

MD5
0866c83ffb0212ef77bd389ec86ca958

SHA1
071d60f432034a7d7864ba4359702938caa18553

SHA256
ed5e8047f64a56808d514c4b31a6c45f406bbc85333f51435fa6745bebe66ea2

SHA512
552135a035af04b413fb53d6a2ef5a495511b187d493b9c30a9766b75c98572fff578d5467c8aee72662ca3c72a3498b5af19a4825b1f0e8ccc89efa6d213c7b

Download Submit
C:\Program Files (x86)\MSearch\MSearch.dll

Filesize
96KB

MD5
4ae1045306b38a95b715c4694e5e66d7

SHA1
0d606473c952c49f32e94e1fda07a38752fb4c14

SHA256
b92152c350d06dc7206af5d20c224e1a46a23cec2da29b4f48b2431a8724a086

SHA512
b495f16c1a34aeb6bf26a4f3d16cda8b9b5545247b1d92b776f515ab238b14bbbd118f047f453cfc079f30b921ec790ecbeeba5384874a354fd3656dbdd54d33

Download Submit
C:\Program Files (x86)\MSearch\MSearch.exe

Filesize
24KB

MD5
b418c9d9eedc7c77a2d6d7dd8649126e

SHA1
a9c34a4c268624c243c51f839a382ec62138990e

SHA256
7ee8b73f90c1eb4c0c061bb7f9051ab043fa66fc69b9069fa71039d3bd278a6b

SHA512
b32cb45d6f3ba80d6275e93a5f836a722858159a184a68e1027a8bb3fefcf62ba004b9814292aa8145f8bec3bbca7844553b6602526fa55ea7da994d6163fe9d

Download Submit
memory/2336-0-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2336-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads