fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504

General

Target

fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Size

82KB
MD5

d1b3dcad86a122f2f0f72198bec7b8e6
SHA1

f6f4d5206d815abee8d95f75aff239465107bfa8
SHA256

fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504
SHA512

31909d3962390688220434f72d7794826fbd3d26602630957cb9a05adc107e3f5b9fdca1bd51e79f0861d01644dfe2578bf2d91b75cdb8d5ade0082bab0fa180
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOXeMwY:GhfxHNIreQm+HiueMwY

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2512	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.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	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.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	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
File created	C:\Windows\SysWOW64\¢«.exe	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
File created	C:\Windows\system\rundll32.exe	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.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\" %*"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717615775"	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\txtfile\shell\open\command\ = "notepad.exe %1"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717615775"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2512	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
2512	rundll32.exe
2512	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28
PID 2080 wrote to memory of 2512	2080	fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe	28

C:\Users\Admin\AppData\Local\Temp\fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.exe
"C:\Users\Admin\AppData\Local\Temp\fb2a529cdc5b906d5145b015e2d6e5fc1191b8da5a0a2f56786e6824ada19504.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:2080
- 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:2512

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
82KB

MD5
e728906194852a03f335d118232a4803

SHA1
b3a422ece1458ac3e53fbca6b8ee3a2c74b8dd2d

SHA256
c63b7fdd385b737ef90bb8ea5e648b4af0637bb1f4cae29d3d50b4de0964d945

SHA512
e17ee218e38f1ed59a56c7929409d024e6b6bbc2dc7dece5bd5b2372489a003c4c41b9dad0046c5f153376ab00de65181bd5fbbc51921f91aebfe5f9c6fb8df7

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
838644551c1c7f65f43867292e207ee8

SHA1
81f66f34d25b9692eea3c3a02c7e2e2b63fc915f

SHA256
600cc4ad54c76a6dde789444b8277db3d96da4b1269c05e823fbad3ce028714b

SHA512
f8c8873090776d2a6cadec7b62dd4c98f18b306bff79c769e29c6b007348d18af01ab37103d98bc23c7263b937f5fbdfb40d065081ec08c0e6a6a45053cc0c36

Download Submit
memory/2080-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2080-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2080-17-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2080-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2080-21-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads