0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368

General

Target

0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe
Size

172KB
MD5

01f9d912ff030872225e055901aafd4e
SHA1

06872d6e925ef74c8ed7dfd80ff34cc0bf98feb5
SHA256

0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368
SHA512

02e6579a9361fa7bd3da4fdac417dc47330987d8276961cf8a9d7fe75982ddd7a9cfb3770dae256a44df259243b0a61f0dd899d75e4084fee2fd0ea49a7197f9
SSDEEP

3072:AdAAm/ZgGrbxWjJuwGTlBLmSD+WLc1UGAnl3TPeNqNZwlA35C+9zs3WSmoJuSvf+:Ad5mBdbAFuwGTlBLmSD+WLc1UGAnl3TP

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

paucoa.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	paucoa.exe

Executes dropped EXE 1 IoCs

Processes:

paucoa.exe

pid process

952 paucoa.exe

Loads dropped DLL 2 IoCs

Processes:

0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe

pid	process
1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe
1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe

Adds Run key to start application 2 TTPs 50 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

paucoa.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /t"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /S"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /n"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /w"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /a"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /p"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /U"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /x"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /G"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /c"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /Q"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /P"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /D"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /O"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /o"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /s"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /N"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /T"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /B"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /r"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /K"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /z"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /C"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /h"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /X"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /l"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /u"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /A"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /i"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /L"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /M"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /F"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /H"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /e"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /v"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /R"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /Y"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /W"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /f"	paucoa.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /E"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /y"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /Z"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /I"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /m"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /q"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /j"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /b"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /V"	paucoa.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\paucoa = "C:\\Users\\Admin\\paucoa.exe /d"	paucoa.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 64 IoCs

Processes:

paucoa.exe

pid	process
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe
952	paucoa.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exepaucoa.exe

pid process

1228 0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe
952 paucoa.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe

description	pid	process	target process
PID 1228 wrote to memory of 952	1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe	paucoa.exe
PID 1228 wrote to memory of 952	1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe	paucoa.exe
PID 1228 wrote to memory of 952	1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe	paucoa.exe
PID 1228 wrote to memory of 952	1228	0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe	paucoa.exe

C:\Users\Admin\AppData\Local\Temp\0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe
"C:\Users\Admin\AppData\Local\Temp\0b1fd889630cf8b2a35fc1187d028ac9bcb4bfa466034cf67aeaee5b6494b368.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1228

C:\Users\Admin\paucoa.exe
"C:\Users\Admin\paucoa.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:952

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\paucoa.exe

Filesize
172KB

MD5
4adb28b5463d170b4f117442f1b3a4a6

SHA1
861181fcce38022ecd480d3e1fd7c3da535a3f43

SHA256
642b90c46d1b545a379e109d968e43b752b099d17f4cb79348d3fc1c71147580

SHA512
b7b7b61a279fe72fbb835d44ba34218e8187f262ed2456016345971055640ec14370f6542db76f8511baafe94853a5fc79b680ad8aa16e8bcccbc0d6ab57227c

Download Submit
C:\Users\Admin\paucoa.exe

Filesize
172KB

MD5
4adb28b5463d170b4f117442f1b3a4a6

SHA1
861181fcce38022ecd480d3e1fd7c3da535a3f43

SHA256
642b90c46d1b545a379e109d968e43b752b099d17f4cb79348d3fc1c71147580

SHA512
b7b7b61a279fe72fbb835d44ba34218e8187f262ed2456016345971055640ec14370f6542db76f8511baafe94853a5fc79b680ad8aa16e8bcccbc0d6ab57227c

Download Submit
\Users\Admin\paucoa.exe

Filesize
172KB

MD5
4adb28b5463d170b4f117442f1b3a4a6

SHA1
861181fcce38022ecd480d3e1fd7c3da535a3f43

SHA256
642b90c46d1b545a379e109d968e43b752b099d17f4cb79348d3fc1c71147580

SHA512
b7b7b61a279fe72fbb835d44ba34218e8187f262ed2456016345971055640ec14370f6542db76f8511baafe94853a5fc79b680ad8aa16e8bcccbc0d6ab57227c

Download Submit
\Users\Admin\paucoa.exe

Filesize
172KB

MD5
4adb28b5463d170b4f117442f1b3a4a6

SHA1
861181fcce38022ecd480d3e1fd7c3da535a3f43

SHA256
642b90c46d1b545a379e109d968e43b752b099d17f4cb79348d3fc1c71147580

SHA512
b7b7b61a279fe72fbb835d44ba34218e8187f262ed2456016345971055640ec14370f6542db76f8511baafe94853a5fc79b680ad8aa16e8bcccbc0d6ab57227c

Download Submit
memory/952-59-0x0000000000000000-mapping.dmp

Download
memory/1228-56-0x0000000076401000-0x0000000076403000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads