050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

Analysis

max time kernel
150s
max time network
95s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
02/10/2022, 15:05

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General

Target

050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Size

342KB
MD5

59c50526f1cf5989aef5dc16025342e0
SHA1

947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067
SHA256

050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6
SHA512

0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8
SSDEEP

6144:RRqmpp+amNOGokzLyM9tsLAitQo6tzOKkzIt8gKyfjxfR9D2j4yKSEK+:fqmpplpGoGL3etQoMiXM8gxf/Sj4yKS+

Score

10^/10

aspackv2 persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000b0000000122f9-65.dat	aspack_v212_v242

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe

Executes dropped EXE 2 IoCs

pid	Process
1160	fservice.exe
2036	services.exe

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0008000000005c51-55.dat	upx
behavioral1/files/0x0008000000005c51-56.dat	upx
behavioral1/files/0x0008000000005c51-58.dat	upx
behavioral1/files/0x000a0000000122f9-61.dat	upx
behavioral1/files/0x0008000000005c51-60.dat	upx
behavioral1/files/0x000900000001230f-63.dat	upx
behavioral1/files/0x000900000001230f-67.dat	upx
behavioral1/memory/1284-72-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1160-71-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/2036-73-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/2036-75-0x0000000000400000-0x00000000005FC000-memory.dmp	upx

Loads dropped DLL 6 IoCs

pid	Process
1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
2036	services.exe
2036	services.exe
1160	fservice.exe
1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe
File opened for modification	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
File opened for modification	C:\Windows\system\sservice.exe	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2036	services.exe
2036	services.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 1160	1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe	27
PID 1284 wrote to memory of 1160	1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe	27
PID 1284 wrote to memory of 1160	1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe	27
PID 1284 wrote to memory of 1160	1284	050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe	27
PID 1160 wrote to memory of 2036	1160	fservice.exe	28
PID 1160 wrote to memory of 2036	1160	fservice.exe	28
PID 1160 wrote to memory of 2036	1160	fservice.exe	28
PID 1160 wrote to memory of 2036	1160	fservice.exe	28

C:\Users\Admin\AppData\Local\Temp\050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe
"C:\Users\Admin\AppData\Local\Temp\050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:1160
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Executes dropped EXE
    - Modifies Installed Components in the registry
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    PID:2036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
C:\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\services.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
C:\Windows\services.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
C:\Windows\system\sservice.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
59c50526f1cf5989aef5dc16025342e0

SHA1
947f5d5bf7fd97bd6d30aa4f52dd9a7e3fcb5067

SHA256
050d3f0bc653d65d900c0fc4b735ecfe8a078e09ae7660d1ca421335994143d6

SHA512
0f3010e1d288bdd44db6b893ccb73e93cab0fdc89e5b028fa5b6cda118f200f76355fed751b7427bfa11ae8f99cf66c57f00f1e97101e02932de447f3ab45bc8

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/1160-71-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1284-54-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1284-72-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2036-73-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2036-74-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2036-75-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads