999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

General

Target

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
Size

120KB
MD5

5e6ace4c857d82137cf56ed21ea96d00
SHA1

d90e659bcabff96081b4a95ba61db0c1de703713
SHA256

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b
SHA512

e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad
SSDEEP

3072:trPtxL6Km4Pno2dvt95ycyLnZSi0O8Xf6hJDqBDcP2:ptxL6KjFt95ycyLnZSih8Xf6hJDqmO

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	pasuk.exe

Executes dropped EXE 2 IoCs

Processes:

pasuk.exepasuk.exe

pid process

752 pasuk.exe
1696 pasuk.exe

pid	process
752	pasuk.exe
1696	pasuk.exe

Loads dropped DLL 2 IoCs

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe

pid	process
2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe

Adds Run key to start application 2 TTPs 28 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

pasuk.exe999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /d"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /k"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /y"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /h"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /u"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /i"	pasuk.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /p"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /a"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /r"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /f"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /e"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /i"	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /c"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /g"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /w"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /o"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /z"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /q"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /m"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /j"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /l"	pasuk.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /t"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /s"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /b"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /n"	pasuk.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\pasuk = "C:\\Users\\Admin\\pasuk.exe /x"	pasuk.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	pasuk.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	pasuk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe

Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media
T1091

Processes:

pasuk.exe

description ioc process

File opened for modification C:\Users\Admin\c\autorun.inf pasuk.exe

description	ioc	process
File opened for modification	C:\Users\Admin\c\autorun.inf	pasuk.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exe

description	pid	process	target process
PID 1740 set thread context of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 752 set thread context of 1696	752	pasuk.exe	pasuk.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exe

pid	process
2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe
1696	pasuk.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exepasuk.exe

pid	process
1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
752	pasuk.exe
1696	pasuk.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exepasuk.exe

description	pid	process	target process
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 1740 wrote to memory of 2024	1740	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
PID 2024 wrote to memory of 752	2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	pasuk.exe
PID 2024 wrote to memory of 752	2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	pasuk.exe
PID 2024 wrote to memory of 752	2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	pasuk.exe
PID 2024 wrote to memory of 752	2024	999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe
PID 752 wrote to memory of 1696	752	pasuk.exe	pasuk.exe

C:\Users\Admin\AppData\Local\Temp\999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
"C:\Users\Admin\AppData\Local\Temp\999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740

C:\Users\Admin\AppData\Local\Temp\999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b.exe
71
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2024

C:\Users\Admin\pasuk.exe
"C:\Users\Admin\pasuk.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:752

C:\Users\Admin\pasuk.exe
71
4⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1696

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\pasuk.exe
Filesize
120KB

MD5
5e6ace4c857d82137cf56ed21ea96d00

SHA1
d90e659bcabff96081b4a95ba61db0c1de703713

SHA256
999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

SHA512
e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad

Download Submit
C:\Users\Admin\pasuk.exe
Filesize
120KB

MD5
5e6ace4c857d82137cf56ed21ea96d00

SHA1
d90e659bcabff96081b4a95ba61db0c1de703713

SHA256
999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

SHA512
e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad

Download Submit
C:\Users\Admin\pasuk.exe
Filesize
120KB

MD5
5e6ace4c857d82137cf56ed21ea96d00

SHA1
d90e659bcabff96081b4a95ba61db0c1de703713

SHA256
999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

SHA512
e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad

Download Submit
\Users\Admin\pasuk.exe
Filesize
120KB

MD5
5e6ace4c857d82137cf56ed21ea96d00

SHA1
d90e659bcabff96081b4a95ba61db0c1de703713

SHA256
999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

SHA512
e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad

Download Submit
\Users\Admin\pasuk.exe
Filesize
120KB

MD5
5e6ace4c857d82137cf56ed21ea96d00

SHA1
d90e659bcabff96081b4a95ba61db0c1de703713

SHA256
999384f7156bffb12aedb17beba992da66de4d19a514edc160f063e6c431c04b

SHA512
e06f8a9c18142fbdb84d42d2612ed027302351976b20e86e0780bb2d37de71fd0be4ff0042548553ab1b4fc8536311515aedea62f5257e8e845408ac81a210ad

Download Submit
memory/752-67-0x0000000000000000-mapping.dmp

Download
memory/1696-73-0x00000000004010EC-mapping.dmp

Download
memory/1696-79-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/1696-81-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2024-56-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2024-64-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2024-63-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/2024-62-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2024-59-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2024-57-0x00000000004010EC-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads