40d1b1db66914ea21760f3cbdded1705cb5281c244caee6288fc046c8896e627

Analysis

max time kernel
156s
max time network
167s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 01:45

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General

Target

2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe
Size

255KB
MD5

2d2685f10076126d0c398998111902d0
SHA1

3d49798143638a11746a4242544cf051527d9f60
SHA256

40d1b1db66914ea21760f3cbdded1705cb5281c244caee6288fc046c8896e627
SHA512

7dcd82054c897a302c841c2ac0f1ff3a200ba8d044cbbdccdc2be81a5379b66a378faec5e19097a21d6b7f8ec28eee14226a16bacfc1d1910724533626269d29
SSDEEP

6144:o64tXafE0Mqpm+SKAqpByuqPoEbLvRdvf0:o68r0Mqpm+SCB3KbLzM

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies Installed Components in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Active Setup\Installed Components	explorer.exe

Loads dropped DLL 3 IoCs

pid	Process
1292	regsvr32.exe
2228	regsvr32.exe
832	explorer.exe

Registers COM server for autorun 1 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\MediaViewer\\plugin.dat"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32	regsvr32.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d000000012274-4.dat	upx
behavioral1/files/0x000d000000012274-3.dat	upx
behavioral1/files/0x000d000000012274-6.dat	upx
behavioral1/memory/2228-7-0x000007FEF65E0000-0x000007FEF664D000-memory.dmp	upx
behavioral1/files/0x000d000000012274-8.dat	upx
behavioral1/memory/832-9-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-12-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-14-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-15-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-19-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-25-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx
behavioral1/memory/832-26-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp	upx

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

System Information Discovery
T1082

Modifies registry class 44 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\ = "MediaViewerD9F1 Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\Programmable	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Roaming\\MediaViewer\\plugin.dat"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\0	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\Version	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\TypeLib	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\Programmable	regsvr32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\TypeLib\ = "{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ = "IMediaViewerIdentifier"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Roaming\\MediaViewer\\plugin.dat"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Roaming\\MediaViewer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib\ = "{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\Version	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\ = "IMediaViewerIdentifier"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}\TypeLib\ = "{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}"	regsvr32.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1234066A-7A10-4CB5-ACCC-D9F1F06810CE}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{3692066A-7A10-4CB5-AFF3-9DDE336E97AA}\1.0\ = "MediaViewerPluginLib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{45615F2E-872A-4F2D-9A08-475EC8605622}	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe
832	explorer.exe
1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe
832	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
832	explorer.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe
Token: SeShutdownPrivilege	832	explorer.exe

Suspicious use of FindShellTrayWindow 29 IoCs

pid	Process
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe

Suspicious use of SendNotifyMessage 18 IoCs

pid	Process
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe
832	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1732 wrote to memory of 1292	1732	2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe	29
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31
PID 1292 wrote to memory of 2228	1292	regsvr32.exe	31

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-26_2d2685f10076126d0c398998111902d0_mafia_JC.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Windows\SysWOW64\regsvr32.exe
  "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1292
- - C:\Windows\system32\regsvr32.exe
    /s "C:\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat"
    3⤵
    - Loads dropped DLL
    - Registers COM server for autorun
    - Modifies registry class
    PID:2228

C:\Windows\explorer.exe
explorer.exe
1⤵
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:832

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat

Filesize
95KB

MD5
9fa7a99426ff0e1b033e853860e1fe15

SHA1
a3709ea214f89a8c66cf4c93ee5b843642d7dc24

SHA256
22fa36641b0b4bf0e815fb986ac7626e6e8ebe06a2320789a9fb54063366ae46

SHA512
2783a94f1c1a3b17355b054ebd054e9c892d8907d2fb97740da64fe6fc43670a390b48cee4aa734bad634d823415ab63bc2c45c100a966ede4a74edb1f58f3aa

Download Submit
C:\Users\Admin\AppData\Roaming\SogouPinyin.local

Filesize
77B

MD5
e941f1881fe271f9686cd53b7e15104d

SHA1
b389b75756c610c80f9a323e854a20e1041d7218

SHA256
379be2065a17c759600d226633ff35fae48f3f6ec91941f82e416c497131650f

SHA512
cb49733016ddc16d4df87cf697758f9b8c404dd00df4bd91b90630eebaa8329e3ca20db29d5cbf81db095a85778e64c5fffb09c7c05dc5663a88fbb8171ae0b3

Download Submit
\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat

Filesize
95KB

MD5
9fa7a99426ff0e1b033e853860e1fe15

SHA1
a3709ea214f89a8c66cf4c93ee5b843642d7dc24

SHA256
22fa36641b0b4bf0e815fb986ac7626e6e8ebe06a2320789a9fb54063366ae46

SHA512
2783a94f1c1a3b17355b054ebd054e9c892d8907d2fb97740da64fe6fc43670a390b48cee4aa734bad634d823415ab63bc2c45c100a966ede4a74edb1f58f3aa

Download Submit
\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat

Filesize
95KB

MD5
9fa7a99426ff0e1b033e853860e1fe15

SHA1
a3709ea214f89a8c66cf4c93ee5b843642d7dc24

SHA256
22fa36641b0b4bf0e815fb986ac7626e6e8ebe06a2320789a9fb54063366ae46

SHA512
2783a94f1c1a3b17355b054ebd054e9c892d8907d2fb97740da64fe6fc43670a390b48cee4aa734bad634d823415ab63bc2c45c100a966ede4a74edb1f58f3aa

Download Submit
\Users\Admin\AppData\Roaming\MediaViewer\plugin.dat

Filesize
95KB

MD5
9fa7a99426ff0e1b033e853860e1fe15

SHA1
a3709ea214f89a8c66cf4c93ee5b843642d7dc24

SHA256
22fa36641b0b4bf0e815fb986ac7626e6e8ebe06a2320789a9fb54063366ae46

SHA512
2783a94f1c1a3b17355b054ebd054e9c892d8907d2fb97740da64fe6fc43670a390b48cee4aa734bad634d823415ab63bc2c45c100a966ede4a74edb1f58f3aa

Download Submit
memory/832-15-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-9-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-10-0x0000000001CA0000-0x0000000001CA1000-memory.dmp

Filesize
4KB

Download
memory/832-12-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-13-0x0000000003FD0000-0x0000000003FD1000-memory.dmp

Filesize
4KB

Download
memory/832-14-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-16-0x0000000003FD0000-0x0000000003FD1000-memory.dmp

Filesize
4KB

Download
memory/832-19-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-25-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-26-0x000007FEFB6F0000-0x000007FEFB75D000-memory.dmp

Filesize
436KB

Download
memory/832-31-0x0000000003240000-0x0000000003250000-memory.dmp

Filesize
64KB

Download
memory/1292-5-0x0000000000270000-0x00000000002DD000-memory.dmp

Filesize
436KB

Download
memory/2228-7-0x000007FEF65E0000-0x000007FEF664D000-memory.dmp

Filesize
436KB

Download