a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508

General

Target

a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Size

84KB
MD5

d211b916b08f3d31fe61935813a76a7d
SHA1

83ea9f0958a9de05ca7ab30dec4e37e5e8658e19
SHA256

a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508
SHA512

24f0cae7645f3379b0f28bb020c8d932a020309c1da5c21ad5a6238118ecced7bbd5b0eb77cff976a3506f25fba700c162b6af190a3042500370378de8e1bb23
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOOLISl82ojt:GhfxHNIreQm+Hi1LISl82ojt

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2964	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.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	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
File created	C:\Windows\SysWOW64\¢«.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
File created	C:\Windows\system\rundll32.exe	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716333858"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716333858"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2964	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
2964	rundll32.exe
2964	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28
PID 2888 wrote to memory of 2964	2888	a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe	28

C:\Users\Admin\AppData\Local\Temp\a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.exe
"C:\Users\Admin\AppData\Local\Temp\a6de05b0d57315f8dcbdd3637cb257e5470af2def7dabb38d7a9871934739508.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:2888
- 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:2964

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
74KB

MD5
8d31fd2aca64e04c7af5a412c208f61a

SHA1
30cfdddd70abf2e522bdf7b6dcda93d7d9d5f7d4

SHA256
f04ecc8be77b38b87b7ffa0ec1435b87a4e41ea9fecd4c71478156effaa21e27

SHA512
4b3f8e95dbd9b17c380ea86d9319a0a5c7a2dae88e3e5051e922061513067ae91fb45c91064367991ce6e87650daba17fc5e6ce850434bc4208336e5bc84918a

Download Submit
\Windows\system\rundll32.exe

Filesize
75KB

MD5
d046a3588eb955c622979959e818dd9f

SHA1
f7d6bb3f28225faabe1b92d1bad50686541998f1

SHA256
9bd3baab4963354b1ef1dc4c59fbfe6df01cb4f904856d167d88666181d56409

SHA512
2c293a2805a0e1b0acaa2a7071c642a642db7789c38b8fb162e95d6c7a80ff1522bf7bad542737815032c023d07984d29c235e3aff8c26801e1f2cd97777824c

Download Submit
memory/2888-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2888-19-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2888-17-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2888-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2888-22-0x00000000002E0000-0x00000000002E2000-memory.dmp

Filesize
8KB

Download
memory/2964-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads