4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a

General

Target

4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Size

74KB
MD5

2fde9e8940fb690af3f084d6d868a14a
SHA1

5da1aa68639555a80584cf6c3aa05d9a1bc668c4
SHA256

4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a
SHA512

9b5470e5d90d1bf978a39e5571439b7d5815f8bfa17ea5b5cd54160983f0e7157fdc1abb130312d21423e54d4ebb00489568b14a9e85f991d03f09823d0ecdec
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOm:RshfSWHHNvoLqNwDDGw02eQmh0HjWOm

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
944	rundll32.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\" %*"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.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	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
File created	C:\Windows\SysWOW64\¢«.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
File created	C:\Windows\system\rundll32.exe	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714536898"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714536898"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
944	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
944	rundll32.exe
944	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 944	868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe	91
PID 868 wrote to memory of 944	868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe	91
PID 868 wrote to memory of 944	868	4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe	91

C:\Users\Admin\AppData\Local\Temp\4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.exe
"C:\Users\Admin\AppData\Local\Temp\4373b647aa06768f55108fa99f11b213e616788f75193dca1adb7edddac38d2a.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:868
- 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:944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1028 --field-trial-handle=2272,i,4858140932023865871,5726683989663339295,262144 --variations-seed-version /prefetch:8
1⤵
PID:2308

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
80KB

MD5
70a9da14023049a9f2a72ccf0da0188d

SHA1
400d128edc08712ddcc95b9440248a6e9ea4ac0e

SHA256
31c57e958ce6002ee765b8e6b1914d997760c6467a89aa5aa4ecb21dc9b6dd18

SHA512
f8604431007eb9a06c42a8313876790925c0e828feb3e5443383c2716d8af71bd3cefb5a09d948197c239a620ea24a49173f63bc4277918a246b1206567c5c45

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

Filesize
78KB

MD5
c3848ebb921d56b589c33f46eb9479f6

SHA1
8408e13016ddccbe60747c80f6c40a05f6dab6f2

SHA256
ca50e53833e3aee267a1eac68700454e55f82245b5324fe0bdb9276f24795466

SHA512
16268588b0250c4b4b074223214e64a20cd3f05ac843ceb57d8503ca1a7df5910f990577543d3e4c4c6b91c2fd40ce6d75f74321ed7fe85a07f271ddbd6ddf08

Download Submit
memory/868-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/868-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads