2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987

General

Target

2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Size

79KB
MD5

3b834185298a409bd61ab4b219edd00e
SHA1

e2bf5ae384430b88aaa66e8e6281ab57e36751e6
SHA256

2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987
SHA512

b03fac64c6b9b3c572d3d34e7602abd40c76af47870727f5e1b865bd1bcc18e18c4ee94816da18bf91bc36ee5bf69282fe767c5e71ac727198c71ce19b288e54
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOMjjU41:GhfxHNIreQm+Hi7jjU41

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1752	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.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	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.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\¢«.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
File created	C:\Windows\system\rundll32.exe	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716214881"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.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\" %*"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716214881"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1752	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
1752	rundll32.exe
1752	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28
PID 2880 wrote to memory of 1752	2880	2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe	28

C:\Users\Admin\AppData\Local\Temp\2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.exe
"C:\Users\Admin\AppData\Local\Temp\2e71d85fd42bc6a73476eb4981dc5edffe2bd6e6a9f1bcfa77ed339f06289987.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:2880
- 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:1752

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
82KB

MD5
a6eebb3bc752944fdb99b837deb9862f

SHA1
7ab02ab70ffe17db46a98a36bf18eb8988d77039

SHA256
62692b8725b08a558543adc3559d8e0aed4ce73e7c3d4a41eb6d4b247c77ebe6

SHA512
96f90fe70ebe47e19371d3509343c25ae53367fdc739101ae5d7ae44a761785bef52febdac8508942d2657b5209dd02d5e607bde6a6fabc064ccdee645af106a

Download Submit
\Windows\system\rundll32.exe

Filesize
82KB

MD5
a15bd343dea377ef68d77c897e21ebea

SHA1
7d3d81a72f5870e9b40fe57fc8581b3eaa6dd03b

SHA256
bc8bbaa7f857b906eff6c6d1cc8549e91ed05643b39fb56d84c672cf784aaf15

SHA512
482861cddbf8841b4997dc24eb4fffc2370755785549140660e2165c7eacdbe38f5df41aaa7e9375fa2521f8cff62c8f72ab5b6d0b9d6864e967d4010796eeed

Download Submit
memory/1752-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2880-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2880-18-0x00000000001F0000-0x0000000000206000-memory.dmp

Filesize
88KB

Download
memory/2880-19-0x00000000001F0000-0x0000000000206000-memory.dmp

Filesize
88KB

Download
memory/2880-22-0x00000000001F0000-0x00000000001F2000-memory.dmp

Filesize
8KB

Download
memory/2880-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads