f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4

General

Target

f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
Size

285KB
MD5

6e6851c9594165890afaf9d93fb47960
SHA1

0aed3543cf1b79bc5556207ba63b0b8a47e03868
SHA256

f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4
SHA512

a8f741321d2c9f3a3895f20609b25cd532e34db58c7b5e733792b8b32966092171e4b08f722b03d4270774a36230a6e1eee50972161040bf291c11c365e50767
SSDEEP

6144:aMqylurv771DBjuaoLuY+P2H8ah1JTIhGpa2oywFgVyR10GZKV6NkyS8:5lurv771DBVdeHzLTIYkywFcyVZKkTS8

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 5 IoCs

pid	Process
1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\Metropolis = "rundll32.exe C:\\Windows\\system32\\sshnas21.dll,GetHandle"	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sshnas21.dll	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe
1828	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27
PID 1044 wrote to memory of 1828	1044	f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe	27

C:\Users\Admin\AppData\Local\Temp\f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.exe
"C:\Users\Admin\AppData\Local\Temp\f058c7f9ed93c1ad07db32b6bf56de33f564e63861a4d36d1475c2109fbf04d4.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:1044
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Windows\system32\sshnas21.dll,GetHandle
  2⤵
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  PID:1828

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
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
\Windows\SysWOW64\sshnas21.dll

Filesize
233KB

MD5
ac20ad8ae05c31994cecba7f7ebb8ff9

SHA1
8a5635c14d03945c8feac2323bc856ddb3d94612

SHA256
c111220c83fb1c676012c82d000c24f2c407b1f93272380ff38fe66ded9edbe6

SHA512
75f5c1fa0dbe4e404c2f9fc7b7167ff8af64632f57f598d79f6094752d7bb67de14987f42e4d9c31338767af6247d8d91feabc9fdc7236036c45bdcc751a6ee1

Download Submit
memory/1044-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1044-59-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/1044-58-0x0000000000890000-0x00000000008A5000-memory.dmp

Filesize
84KB

Download
memory/1044-54-0x0000000075601000-0x0000000075603000-memory.dmp

Filesize
8KB

Download
memory/1044-56-0x00000000006D0000-0x00000000006DB000-memory.dmp

Filesize
44KB

Download
memory/1044-67-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1828-68-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/1828-69-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download

Analysis

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