a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0

General

Target

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
Size

172KB
MD5

00970fbbd1a10cc25d0adb85bc3c1109
SHA1

3888f695f17ad8e0bb3a67dc5bfa3bb49810fa62
SHA256

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0
SHA512

9cd1e04e4e18612c94f48137370b9f89965154a70f9d286ee1ac9af819763b98d70099d34ca91a6bdbc5c2fce4c5ef843068151251376ced7d5aa1fb2845b5a0
SSDEEP

3072:CCqIcsh+4xLKGPQb6pLnq1AbpaMAePjT9273c0Iy8onzK9:umxLKGPQbWqliF27MHsK

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:

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exezlnid.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	zlnid.exe

Executes dropped EXE 1 IoCs

Processes:

zlnid.exe

pid process

1528 zlnid.exe

pid	process
1528	zlnid.exe

Loads dropped DLL 2 IoCs

Processes:

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe

pid	process
1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

zlnid.exea09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /i"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /p"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /n"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /g"	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /l"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /q"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /j"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /z"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /r"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /y"	zlnid.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /c"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /k"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /o"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /a"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /f"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /d"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /b"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /t"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /e"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /s"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /w"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /u"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /x"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /m"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /h"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /v"	zlnid.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\zlnid = "C:\\Users\\Admin\\zlnid.exe /g"	zlnid.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:

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exezlnid.exe

pid	process
1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe
1528	zlnid.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exezlnid.exe

pid process

1460 a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
1528 zlnid.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe

description	pid	process	target process
PID 1460 wrote to memory of 1528	1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe	zlnid.exe
PID 1460 wrote to memory of 1528	1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe	zlnid.exe
PID 1460 wrote to memory of 1528	1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe	zlnid.exe
PID 1460 wrote to memory of 1528	1460	a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe	zlnid.exe

C:\Users\Admin\AppData\Local\Temp\a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe
"C:\Users\Admin\AppData\Local\Temp\a09259732f21d8bf601f1fa81213e0f0fbbb1bc48f3615a3a5ffe3f0480b52d0.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1460

C:\Users\Admin\zlnid.exe
"C:\Users\Admin\zlnid.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:1528

Network

MITRE ATT&CK Matrix ATT&CK 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

1

T1158

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\zlnid.exe
Filesize
172KB

MD5
8f0cd4e3dc942a923c60d245a2fbc19b

SHA1
4d569f7cccbcf57fac5fd11d4411e57d3603d2a2

SHA256
f77f99a79022b6a21082d964cd0ff9ccb20fe48b8def82d55bd20ee3cf79d670

SHA512
c79ec55da8e7f6e7e364680ccab8c8ee8ebe03aa0ba8b88b20f929252f0c28df76bc6a43802b3690c8546757c5c5dff6bd13433a7ef1178ea4e5964b00cbf071

Download Submit
C:\Users\Admin\zlnid.exe
Filesize
172KB

MD5
8f0cd4e3dc942a923c60d245a2fbc19b

SHA1
4d569f7cccbcf57fac5fd11d4411e57d3603d2a2

SHA256
f77f99a79022b6a21082d964cd0ff9ccb20fe48b8def82d55bd20ee3cf79d670

SHA512
c79ec55da8e7f6e7e364680ccab8c8ee8ebe03aa0ba8b88b20f929252f0c28df76bc6a43802b3690c8546757c5c5dff6bd13433a7ef1178ea4e5964b00cbf071

Download Submit
\Users\Admin\zlnid.exe
Filesize
172KB

MD5
8f0cd4e3dc942a923c60d245a2fbc19b

SHA1
4d569f7cccbcf57fac5fd11d4411e57d3603d2a2

SHA256
f77f99a79022b6a21082d964cd0ff9ccb20fe48b8def82d55bd20ee3cf79d670

SHA512
c79ec55da8e7f6e7e364680ccab8c8ee8ebe03aa0ba8b88b20f929252f0c28df76bc6a43802b3690c8546757c5c5dff6bd13433a7ef1178ea4e5964b00cbf071

Download Submit
\Users\Admin\zlnid.exe
Filesize
172KB

MD5
8f0cd4e3dc942a923c60d245a2fbc19b

SHA1
4d569f7cccbcf57fac5fd11d4411e57d3603d2a2

SHA256
f77f99a79022b6a21082d964cd0ff9ccb20fe48b8def82d55bd20ee3cf79d670

SHA512
c79ec55da8e7f6e7e364680ccab8c8ee8ebe03aa0ba8b88b20f929252f0c28df76bc6a43802b3690c8546757c5c5dff6bd13433a7ef1178ea4e5964b00cbf071

Download Submit
memory/1460-56-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1528-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads