7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd

General

Target

7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Size

84KB
MD5

aa56d21e8739c84b47f440cb6e7ad600
SHA1

4d252a2faff521992dacd2d9d8fd2cc5083873c1
SHA256

7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd
SHA512

9c447601762d2bbfa0f2c48030a645a0404f0d35dc781cfc14970f3b6c1b6714dd6c11eeff204ab09a75b37d12b3f1a132addd98518abe6f684a6e7f5301d136
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOMJpF:GhfxHNIreQm+HilJpF

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4656	rundll32.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	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
File created	C:\Windows\SysWOW64\¢«.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
File created	C:\Windows\system\rundll32.exe	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697589590"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697589590"	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 28 IoCs

pid	Process
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
4656	rundll32.exe
4656	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 4656	4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe	82
PID 4540 wrote to memory of 4656	4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe	82
PID 4540 wrote to memory of 4656	4540	7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe	82

C:\Users\Admin\AppData\Local\Temp\7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.exe
"C:\Users\Admin\AppData\Local\Temp\7e8f61d75b998928224e225033977304326695b030079f1d5a8870b9c94e5fbd.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:4540
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:4656

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
74KB

MD5
272ac850cf3fc815807d69e2dce921f1

SHA1
7f5385a1beee3318bf3c064353f09d46fcc8106e

SHA256
143b5043ed68aecf96891c21d86b0a0c605e6696a88f59516a608dc8935ce7ef

SHA512
2a052752ae979fa3e53f2dae0d64b2e594de62dce5ae95385b7921bce4f2bd9413b2e064c31b0702f8437b3aca3b0072ac89981074bbcf3ee07e02d9630ef17b

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

Filesize
77KB

MD5
b94bb26af2e317a52e61c194c40d4a65

SHA1
08ce80c943972b1c9a1e5ac1003e8d4ef8029aba

SHA256
013c9182b78679e4348c1d7b6b051e5a0ba8ce73f528dd831e241468026d730b

SHA512
14816b6c063719cc98c5fcdb3933ff531b496a2ed095c615544b3412f4fa07e8f06500f919e7de6684e5e1672a37945c2cdbd5887084bc64d8c9d763593f58c2

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

Filesize
77KB

MD5
b94bb26af2e317a52e61c194c40d4a65

SHA1
08ce80c943972b1c9a1e5ac1003e8d4ef8029aba

SHA256
013c9182b78679e4348c1d7b6b051e5a0ba8ce73f528dd831e241468026d730b

SHA512
14816b6c063719cc98c5fcdb3933ff531b496a2ed095c615544b3412f4fa07e8f06500f919e7de6684e5e1672a37945c2cdbd5887084bc64d8c9d763593f58c2

Download Submit
memory/4540-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4540-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4656-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads