51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3

General

Target

51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
Size

290KB
MD5

63f1f8abfb03a0ce9328910205ebc52b
SHA1

36a6e61dcf713a43d041e09d174cb448274ccd96
SHA256

51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3
SHA512

85e4da5d8cfd6e6a378b6872c01bab2dcec455dbfeebd558fe29b2214c4f1b6d6a99d2bbbc4a68c5edc52e685793a3d0d9802501e5a9ac9f7bee59ee73afa874
SSDEEP

6144:i4mQH55dX3X7HOThSLBFZkjjJNGsyriSiAVEkE6cJHCco1:i4NX7HOmajlksyrlCkpcpC

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 5 IoCs

pid	Process
1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\Metropolis = "rundll32.exe C:\\Windows\\system32\\sshnas21.dll,GetHandle"	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sshnas21.dll	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe
940	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27
PID 1696 wrote to memory of 940	1696	51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe	27

C:\Users\Admin\AppData\Local\Temp\51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe
"C:\Users\Admin\AppData\Local\Temp\51c3623eebe7c4b8bc7e4d96e7bb2c461b54d43f1561bdbc1df319eda8a8d9a3.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\sshnas21.dll,GetHandle
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
235KB

MD5
0e0b2c468eee35d227c083cd9b3fc5d4

SHA1
f53d7e882c723f0db3c9ced447e820e1fe170759

SHA256
08536ffef4e1b48662cff075da77c4e3c9f8d859f305407459e9aa4b6183ed3e

SHA512
24d41ace12ab7d657e4cc50cbb634deeb5e91f9f06885eafeef9dcc81923cd18ff9b81b54de5a7484c4a6f27319438de1b11f127b07f50cc40be0a91ec0198fa

Download Submit
memory/940-56-0x0000000000000000-mapping.dmp

Download
memory/940-66-0x0000000010000000-0x0000000010063000-memory.dmp

Filesize
396KB

Download
memory/940-67-0x0000000010000000-0x0000000010063000-memory.dmp

Filesize
396KB

Download
memory/1696-57-0x0000000000230000-0x000000000023D000-memory.dmp

Filesize
52KB

Download
memory/1696-58-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1696-59-0x00000000005A0000-0x00000000005AB000-memory.dmp

Filesize
44KB

Download
memory/1696-54-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download

Analysis

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