87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754

General

Target

87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Size

75KB
MD5

eca4fc0f904e6323955bc57dd68ae58f
SHA1

89359b5b5f9103f255fa44e1bba9c2009e3e8d0f
SHA256

87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754
SHA512

15bbeb1af9c9f9550e18fba6470e4d28094f0a60a2fda7e555a59bd408fb23bf0511eb94c7d04bab503d08dc99337127662354ed47a2ea209e1ce244259e2137
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOEd:RshfSWHHNvoLqNwDDGw02eQmh0HjWOEd

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2696	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.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	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.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\¢«.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
File created	C:\Windows\SysWOW64\¢«.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
File opened for modification	C:\Windows\system\rundll32.exe	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1722927305"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1722927305"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
2696	rundll32.exe
2696	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30
PID 2316 wrote to memory of 2696	2316	87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe	30

C:\Users\Admin\AppData\Local\Temp\87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe
"C:\Users\Admin\AppData\Local\Temp\87efac17cb69a28e28eb15540f20ee9c9e1ad56d3f98b983689e5d1f45ca9754.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2696

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
77KB

MD5
7ae37b272cc024db0120934c31f80f28

SHA1
91a24ae9387294c5f6c52431ed9906aa6fe03640

SHA256
58ebee5ff35aadb3e08e94d474edf83a2939f18e25e95d490875948335ddebee

SHA512
5ed7e9dc604a6cf34694528acbfd735e0686826b743d39eb3fb4efdb299947e346aec16b1e939187a4064a41e505700261bce48f094485da36944144a1e9ab1c

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
a5cd8fc525b13f71b9051df0df4c81bc

SHA1
b03143816c1bce1584a7b010049ccaf1bb61b539

SHA256
1796369efda4442ef49a2806580302388e3013e0f118741ef545dd7a32ec7ce0

SHA512
4d565650babf1c64299fa8d917e1c0e4cdd15820fde47891f5a8e027f260b6e731fbad0d3636e5bb239a0df2b6669b453c044857b9967311e47b7c2efefb038b

Download Submit
memory/2316-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2316-12-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2316-18-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2316-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2316-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2696-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads