d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68

General

Target

d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Size

73KB
MD5

1953b14330530151e83fae043a7c7a3f
SHA1

ff7efd2e281c109b918c5077e91db1b92248e8d1
SHA256

d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68
SHA512

b9d046ec5cab3ff038a1855b37dad82aff710c01b379be82c8c740b739cb25bfa1b82a7960279b86bc1eb7552b308289f19344cea41d0fe1e50fdb78dcb1174c
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO4:RshfSWHHNvoLqNwDDGw02eQmh0HjWO4

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2152	rundll32.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	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.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	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
File created	C:\Windows\SysWOW64\¢«.exe	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
File opened for modification	C:\Windows\system\rundll32.exe	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716214685"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716214685"	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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
2152	rundll32.exe
2152	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1068 wrote to memory of 2152	1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe	86
PID 1068 wrote to memory of 2152	1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe	86
PID 1068 wrote to memory of 2152	1068	d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe	86

C:\Users\Admin\AppData\Local\Temp\d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe
"C:\Users\Admin\AppData\Local\Temp\d4310fa2c99c105f60c6d13e99de9f6fa9b82fbea896fb43799114cf050f8b68.exe"
1⤵
- 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:1068
- 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:2152

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
80KB

MD5
0efde3a5209b6a39588928282bca9fdf

SHA1
38dc2fc342643580a251bc54495de98a1a9de63f

SHA256
1231f431023d14a8de396ed6e0c70865e421508cee1118d6644bc8a8bc3081b7

SHA512
6e4e7e93ff9f85fb6d722ae35edc10bf90fb3088c7d4c5b7190b5e05a54595124b158f527712f2f2432fbbe1e65968d67452179301e22eba36d8d5c02315940d

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

Filesize
77KB

MD5
93db44d8284847104ec8df4258f46b9b

SHA1
99644647b02a7af05970e4a282bea96ea0b0d38d

SHA256
f3d3d9bf9ac9f5a145fd4153f6dcd1b39c506cfa524cff00fcb27c28dbf81830

SHA512
8217ba5922f38775f426f6a5b92c70dc23ffce4ebf57349d66f0e5a429662e846166cbde4723709fac40dc476b05d655b003e4454e6d3babf0b6ed7fe61df32e

Download Submit
memory/1068-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1068-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads