fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53

General

Target

fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Size

76KB
MD5

784ccb4a311f970bfe8be300cdcc2e44
SHA1

c516cc7b4f2f8ca1f48479cb6a5f90684e954278
SHA256

fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53
SHA512

7be434a5871dc37977ec5699676e5af4168b6cde16b0c50ffefd8548f56f3e8e86eb737f7b483eedf6a8530eb9d1296699b25a8828bc9d94d2f766fbac1efbdd
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO3uI:GhfxHNIreQm+HiauI

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1076	rundll32.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	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.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 opened for modification	C:\Windows\SysWOW64\¢«.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File created	C:\Windows\SysWOW64\¢«.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File created	C:\Windows\system\rundll32.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.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\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717616487"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717616487"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1076	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1076	rundll32.exe
1076	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3588 wrote to memory of 1076	3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	81
PID 3588 wrote to memory of 1076	3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	81
PID 3588 wrote to memory of 1076	3588	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	81

C:\Users\Admin\AppData\Local\Temp\fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
"C:\Users\Admin\AppData\Local\Temp\fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.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:3588
- 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:1076

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
73KB

MD5
d2c0dd76e05e3ed2106089468b2d65a2

SHA1
642967312de7e370e19515651b6cb460bec6e87e

SHA256
13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3

SHA512
8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a

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

Filesize
80KB

MD5
711acbccce995ebaa5b6d57316cb2466

SHA1
bc35a477d7e0c173dba53e7f488f1305386bfa41

SHA256
6d1c70c945a1b1e44adc8f4e59500fba7149530945c76d2d686b25362690751f

SHA512
67b75d2eda5b9e58aee0d5197a707d19c318e3ce35c2eed2a4bde3cba120cd1172d4de66486d6a6f325616178aae997f66523495957166b1f7ead51ef5f65249

Download Submit
memory/3588-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3588-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads