ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b

General

Target

ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Size

73KB
MD5

d5b86e26e6ef49cf8c9a65676ca76459
SHA1

e9ac0d9e043b412b6103522cc044bcaf9c931fd6
SHA256

ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b
SHA512

8ecf82bd9a157dadc4712d91708c93696fd6bcc744d130cf884d62e1d5c92fe2364b3717ebf31d7005c4738163af5d9eefa10f16f997cbd57d601209c57db2a1
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2084	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
File created	C:\Windows\SysWOW64\¢«.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
File created	C:\Windows\system\rundll32.exe	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.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	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1725802762"	rundll32.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1725802762"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2084	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
2084	rundll32.exe
2084	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30
PID 2252 wrote to memory of 2084	2252	ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe	30

C:\Users\Admin\AppData\Local\Temp\ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.exe
"C:\Users\Admin\AppData\Local\Temp\ec0b2bbc42613bc06b259930707759c88f06dda0a16fb8484f5318e59ded814b.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:2252
- 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:2084

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
82KB

MD5
c6a3ca3ad266c4a2c3607152a1a3a02c

SHA1
00de2407cfad82454d58c3a37e302e3d720f305f

SHA256
8277a3fed88b065f7195f67eb8de9874ceb536a2991fc26787bbcc58e850bb81

SHA512
194463fe817a8f285778a74bf746f26145ce51c9ed8ebacc6014b4d04adad38aa326c3c1bc2b6bcfac61fb739def394dcd27144d6979d18aa456e88ff6cb3a7d

Download Submit
C:\Windows\system\rundll32.exe

Filesize
81KB

MD5
bc00ddaf19f5d8607e057209074a966b

SHA1
8ec20dc76adb22df1567aef4677c7361399210a5

SHA256
1636b939f69e978e5141efc03f1d15423d1140a8d298f26df3a86b2d52464c7b

SHA512
7b6d01358ae0d02335f763f2693e00dece8c6a5eed6d7d62d608842f76f957b505c57611a3204ea82aa8fabf94c8cdc563d5cc78990206c8957096e9c46a4112

Download Submit
memory/2084-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2084-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2252-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2252-16-0x00000000001D0000-0x00000000001E6000-memory.dmp

Filesize
88KB

Download
memory/2252-17-0x00000000001D0000-0x00000000001E6000-memory.dmp

Filesize
88KB

Download
memory/2252-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads