bd7a026af2a04de3e4b8ab669f8314c0b2ac97e19be2ad26dc9c40411617a9c3

General

Target

27e24a57c19574993ff9a68bbb605010_JC.exe
Size

84KB
MD5

27e24a57c19574993ff9a68bbb605010
SHA1

2785b5a297e089e2696f3c4e866861806fb8520e
SHA256

bd7a026af2a04de3e4b8ab669f8314c0b2ac97e19be2ad26dc9c40411617a9c3
SHA512

2808ce749ed957c44c371a5b1b25c253750e8fc4000752da8ce41390c0dc631405d043bd761382f65adb5bd0cc59742534cdda0dfd80726a7325f8136a67fd44
SSDEEP

768:JgO5xRYi+SQvvG5bnl/NqNwsKVDsBYD77aXKynF0v:eshQvoLqNwDDhCe

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
552	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.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	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	27e24a57c19574993ff9a68bbb605010_JC.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	27e24a57c19574993ff9a68bbb605010_JC.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	27e24a57c19574993ff9a68bbb605010_JC.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	27e24a57c19574993ff9a68bbb605010_JC.exe
File created	C:\Windows\SysWOW64\¢«.exe	27e24a57c19574993ff9a68bbb605010_JC.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	27e24a57c19574993ff9a68bbb605010_JC.exe
File created	C:\Windows\system\rundll32.exe	27e24a57c19574993ff9a68bbb605010_JC.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695147256"	rundll32.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695147256"	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\MSipv	27e24a57c19574993ff9a68bbb605010_JC.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	27e24a57c19574993ff9a68bbb605010_JC.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	27e24a57c19574993ff9a68bbb605010_JC.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	27e24a57c19574993ff9a68bbb605010_JC.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
1736	27e24a57c19574993ff9a68bbb605010_JC.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1736	27e24a57c19574993ff9a68bbb605010_JC.exe
552	rundll32.exe
552	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28
PID 1736 wrote to memory of 552	1736	27e24a57c19574993ff9a68bbb605010_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\27e24a57c19574993ff9a68bbb605010_JC.exe
"C:\Users\Admin\AppData\Local\Temp\27e24a57c19574993ff9a68bbb605010_JC.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:1736
- 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:552

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
91KB

MD5
16ffb07629c9ebd0d86a7f53f254aa97

SHA1
f4f7c0b12eb8da83f67a9d5dfbc2cccdd1d7d7a8

SHA256
c75f6a56141456c2e272c513c521fa34e14f8c53699bdc52e91117c07fd65e51

SHA512
fd3a23c2819b4f72ea504ee4b21f3c9cb91797b4536c00edf7603893efb749b882f4de42d9f262e79480b1ea2cc9dfc40b29b65629c5479130686b76fe4ebfc0

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

Filesize
89KB

MD5
fcf2692ad230ec54e18d32aa7520b245

SHA1
f64558b6de79e75ff5242c89cd0a26ea01799be2

SHA256
ffbb942fe51c9f98c0541a114e837b3339bd1b953f93064b3523b02b123f6636

SHA512
cf714979fa4b853a379da00d67f032f76badd27f6840d8aae3eee9b91a9dd06cce58de4a8fd96e5da5e00408c686347682ba64504e0ef911a853cb33cb0b4eab

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

Filesize
89KB

MD5
fcf2692ad230ec54e18d32aa7520b245

SHA1
f64558b6de79e75ff5242c89cd0a26ea01799be2

SHA256
ffbb942fe51c9f98c0541a114e837b3339bd1b953f93064b3523b02b123f6636

SHA512
cf714979fa4b853a379da00d67f032f76badd27f6840d8aae3eee9b91a9dd06cce58de4a8fd96e5da5e00408c686347682ba64504e0ef911a853cb33cb0b4eab

Download Submit
\Windows\system\rundll32.exe

Filesize
89KB

MD5
fcf2692ad230ec54e18d32aa7520b245

SHA1
f64558b6de79e75ff5242c89cd0a26ea01799be2

SHA256
ffbb942fe51c9f98c0541a114e837b3339bd1b953f93064b3523b02b123f6636

SHA512
cf714979fa4b853a379da00d67f032f76badd27f6840d8aae3eee9b91a9dd06cce58de4a8fd96e5da5e00408c686347682ba64504e0ef911a853cb33cb0b4eab

Download Submit
\Windows\system\rundll32.exe

Filesize
89KB

MD5
fcf2692ad230ec54e18d32aa7520b245

SHA1
f64558b6de79e75ff5242c89cd0a26ea01799be2

SHA256
ffbb942fe51c9f98c0541a114e837b3339bd1b953f93064b3523b02b123f6636

SHA512
cf714979fa4b853a379da00d67f032f76badd27f6840d8aae3eee9b91a9dd06cce58de4a8fd96e5da5e00408c686347682ba64504e0ef911a853cb33cb0b4eab

Download Submit
memory/552-19-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/552-22-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/552-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1736-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1736-17-0x0000000000240000-0x0000000000255000-memory.dmp

Filesize
84KB

Download
memory/1736-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1736-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads