234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37

General

Target

234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Size

78KB
MD5

26acabb3b8322498bca03dd210938bd2
SHA1

8ce549653255d3aa91e261780dadd05fd37bdfee
SHA256

234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37
SHA512

d01fc1819c280a5230820ea4e9663faade69f23d48576b36bdf6f37b9af3d91a36b8ca8efc98670c60c999b992dffae1e28bc2c18f68bc3553f7324fad17f8a1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO0HNr:GhfxHNIreQm+HiXHNr

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3008	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.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\" %*"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
File created	C:\Windows\SysWOW64\¢«.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
File opened for modification	C:\Windows\system\rundll32.exe	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717889401"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717889401"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3008	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
3008	rundll32.exe
3008	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28
PID 2172 wrote to memory of 3008	2172	234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe	28

C:\Users\Admin\AppData\Local\Temp\234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.exe
"C:\Users\Admin\AppData\Local\Temp\234fa5e48a57ab0b380f1c2fbe24b16d46b8d8fbed7bd76864d191f82c49db37.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:2172
- 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:3008

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
79KB

MD5
05f1e0ea8232fcb1027838c9e445c63e

SHA1
0f742dff5cf7f01316630d09ffefbbfaa7a2e2b8

SHA256
35094ffd63634a65203cce6da345686f6f03aad2ede730ff1ff503a79107522b

SHA512
a52ae77b88febf7883213fd9265e9c53f071f37e0706a707cf3f131075e611c6f0b85bb96fb194b8bd74965c40f9a7d75fdced7adb78cfa74ab6f0ef08fa53c3

Download Submit
\Windows\system\rundll32.exe

Filesize
79KB

MD5
ff60099c9ab87fb123398c5b63b3706a

SHA1
81ea8acc90652ac00d4bcd87336dce7eaaf821d0

SHA256
45b88f60765b39d6d9950be0d46e2451e05c9f6b3d45fc8cfcef5d0f1371b4ec

SHA512
200b9b11a97850f5df3da52e0f748d05dbd917c0243d5530499683f818ca632460e7bc632cd92fb29c6a318153e1343391e7a604f1505bb82c47d1675e623bac

Download Submit
memory/2172-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2172-19-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2172-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2172-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/2172-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3008-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads