04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9

General

Target

04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Size

73KB
MD5

f47f0376c09e8314863502f8383f729c
SHA1

4346e4d33b5cb4bd0ab5044c3f709f56da7ef812
SHA256

04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9
SHA512

78946a3b813e73ed2f82d65264f843fb9297453e238023126f589cb5da8e83b6d8c3f2e064ea2186da0be064ea9f14e5c3f2d8cab08d139325303b4139e899d4
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3012	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
File created	C:\Windows\SysWOW64\¢«.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
File created	C:\Windows\system\rundll32.exe	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715959258"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715959258"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3012	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
3012	rundll32.exe
3012	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28
PID 2016 wrote to memory of 3012	2016	04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe	28

C:\Users\Admin\AppData\Local\Temp\04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe
"C:\Users\Admin\AppData\Local\Temp\04ef1f45cdd76718c47c6daaf177ba8230f2dea87b968ea24656f919d35f51d9.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:3012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

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\notepad¢¬.exe

Filesize
80KB

MD5
9f3843805b246ee54b3705cd21d8b38f

SHA1
1c4fb058fa9a0ba4b1e5428e8a693f9d66ea1409

SHA256
557fc8654614a29ab710e433b4e5a648d33481c94daaa5a16c5765192938824f

SHA512
f873c0639c129681d5f92f8961aa1ba35788e2298b2c5f82f2bac62278cf3168c7abf17080d6e2b98148f066a9bb3bfb0806dc0855d04323a02b16d8660f94e9

Download Submit
\Windows\system\rundll32.exe

Filesize
86KB

MD5
b1f03752382384de745a5e99c0d55c0b

SHA1
adc5b4ed8a3d4376aa1e72fc1ba0e91d9cb1ad23

SHA256
8c88790cba13756199d327c7231e6319ada4c884c8291c7c56bf3abc95935e99

SHA512
5a227beae60910cc52e2a28a10a124f56caae3f95694828f2e8f8473b17c8ffd5b7cc263e10217ccd21b95515d7826a815778f5d56555026485fa09d738f03d0

Download Submit
memory/2016-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2016-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2016-17-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2016-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2016-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/3012-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads