c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338

General

Target

c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Size

84KB
MD5

06f3676106f822ccd30470449fc50b31
SHA1

a5492abaef03cf6f811a081d26d99658850d7b3a
SHA256

c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338
SHA512

a4eb32604a4e2768e04db1cd088b6b66c8430f6eed795bcf36c11a68d565a31fc4094916197f968a2e9845b035ed5cea37eec2f1462b41ad440de7c25e43f08b
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5nXXPM:GhfxHNIreQm+HianXXPM

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2168	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.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	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.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 created	C:\Windows\SysWOW64\notepad¢¬.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
File created	C:\Windows\SysWOW64\¢«.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
File created	C:\Windows\system\rundll32.exe	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718004590"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718004590"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\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\txtfile\shell\open\command	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2168	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
2168	rundll32.exe
2168	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28
PID 3008 wrote to memory of 2168	3008	c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe	28

C:\Users\Admin\AppData\Local\Temp\c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.exe
"C:\Users\Admin\AppData\Local\Temp\c36b8fdae5c93eca3c486b55ab76c8cd36cbb50e0b5ca8d73141f29679768338.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:3008
- 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:2168

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
77KB

MD5
970c0036e03776acd71b8b96e4cfe2cb

SHA1
2cba65b175c4f7968ae1437a1478f24080055bda

SHA256
b2d763501c1d780c5369474a316b1e4ea08664d3b6c9c07d5579684aff58080f

SHA512
aa0ccefb9e0d286d156a4e5d46d31ce3d206d1c975df9f00f2157c2825ad54e1263b4c0d8ba20cf1e8dbe40847169abccae0988645d155e97d02d38ab5ba7bd9

Download Submit
\Windows\system\rundll32.exe

Filesize
73KB

MD5
d2c0dd76e05e3ed2106089468b2d65a2

SHA1
642967312de7e370e19515651b6cb460bec6e87e

SHA256
13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3

SHA512
8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a

Download Submit
memory/2168-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3008-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3008-12-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/3008-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/3008-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3008-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads