280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3

General

Target

280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Size

83KB
MD5

852f4a44a71c8cba275c1a840375f03f
SHA1

9c2954cafb23de817f06dd06f41b26ca38720d8f
SHA256

280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3
SHA512

edc6eba67b7eaccdf3e624d3cbcdb4a15a0a46214a7133a098de5e8d0cf8c6de4687ecc4608aca89253775e8c47e4b358bf67b7f61ef198729d145116b7343d1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO4I+DM:GhfxHNIreQm+HiDI+DM

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4224	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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
File created	C:\Windows\SysWOW64\¢«.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
File created	C:\Windows\system\rundll32.exe	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697024658"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697024658"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4224	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
4224	rundll32.exe
4224	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4488 wrote to memory of 4224	4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe	86
PID 4488 wrote to memory of 4224	4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe	86
PID 4488 wrote to memory of 4224	4488	280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe	86

C:\Users\Admin\AppData\Local\Temp\280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.exe
"C:\Users\Admin\AppData\Local\Temp\280a8d140ef46d1a72812a0dc4904c65738565fae0f6689bdd934f20895feab3.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:4488
- 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:4224

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
74KB

MD5
c33f4272fb4e6374736731295272499a

SHA1
e5d9951c78eab2b11367e41d3142c0c24650a52d

SHA256
212c9abf9fc29f515f1df2d3e146182aae3002316b879bc1a7f6559373f105c6

SHA512
b2a13cf84a165333ab701595b00fa3eb3c71bc029f524e0ae9cbf88c0d8b6207069596c076ea23141c2b0cf8afb6818a928c12b86e6c3f51b5ad66b747889dde

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

Filesize
83KB

MD5
21c808aa5be3991fd581b24af5bd471a

SHA1
674a9b627e23c88f37bc0b560e1122f8490a9a11

SHA256
099f03e746168c316b395677c8b7569093e9d3ca5846c54bfe5fb1b00227f6c3

SHA512
19081d09e7348428914a1b681abe0229584dd66b75a56ff2eb596fb0f98400dc0aee5f05a2bd8c6a25ddd45f50c3604f72a6567372652cd53fcc1ae49e90fa95

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

Filesize
83KB

MD5
21c808aa5be3991fd581b24af5bd471a

SHA1
674a9b627e23c88f37bc0b560e1122f8490a9a11

SHA256
099f03e746168c316b395677c8b7569093e9d3ca5846c54bfe5fb1b00227f6c3

SHA512
19081d09e7348428914a1b681abe0229584dd66b75a56ff2eb596fb0f98400dc0aee5f05a2bd8c6a25ddd45f50c3604f72a6567372652cd53fcc1ae49e90fa95

Download Submit
memory/4224-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4488-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4488-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads