1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13

General

Target

1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Size

81KB
MD5

7b3b6b663bc770e04e31f56591c9f022
SHA1

682582f5f9912eac350b111182bba3ef7f231e76
SHA256

1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13
SHA512

72e8c59f3845b6bb10b75f96cf0a8822e457902d12d6c97b7c69d71ed5e5b8ea0563985b0a53c3eff4f394b387cb8672fb8e3bf3ecb6b572705043a9000ea7b8
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOWjLfvw:GhfxHNIreQm+Hi5jLfvw

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3000	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.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	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.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\¢«.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
File created	C:\Windows\system\rundll32.exe	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695369222"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.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.exe %1"	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695369222"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
3000	rundll32.exe
3000	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28
PID 2988 wrote to memory of 3000	2988	1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe	28

C:\Users\Admin\AppData\Local\Temp\1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.exe
"C:\Users\Admin\AppData\Local\Temp\1a0d1982927ae271ecf719267e1daa7ad616be997dfa7d9a3c8c4c95644f8f13.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:2988
- 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:3000

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
5c18a9ffd50c55db856df3e25a150f3b

SHA1
c50199d2f9379b98160152b73f9beb8a2e3e794d

SHA256
3b5c86799f61e793c2c5b5adac7ba5a9b9bc0f203cbd41450f7d14cf50586236

SHA512
d970fee00345906f7262e0d6febc5b82ac3cbedf6a27cca5f85b66ecdd1c27c0350243ad10f451394295e03496de247be95dc3bdea84888d48512f59abe0dabb

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

Filesize
78KB

MD5
53e4885aed76ddcf63227e4091508b55

SHA1
0406c55bb335f4b70648657cb0da2e7feae55d21

SHA256
2e57318bc8caf849a1a5f53df383110b9b2c3ca119780984742bb00f1f34e9da

SHA512
8863297f7b1ff08520edf70611e9d25f9194b9af8d02a7f32e179d438193edac7d1d87a6e7fa1ec35d0f4a2e70fbcb3ee2dcb80a05466b0c4f360b2ba1911126

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

Filesize
78KB

MD5
53e4885aed76ddcf63227e4091508b55

SHA1
0406c55bb335f4b70648657cb0da2e7feae55d21

SHA256
2e57318bc8caf849a1a5f53df383110b9b2c3ca119780984742bb00f1f34e9da

SHA512
8863297f7b1ff08520edf70611e9d25f9194b9af8d02a7f32e179d438193edac7d1d87a6e7fa1ec35d0f4a2e70fbcb3ee2dcb80a05466b0c4f360b2ba1911126

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
53e4885aed76ddcf63227e4091508b55

SHA1
0406c55bb335f4b70648657cb0da2e7feae55d21

SHA256
2e57318bc8caf849a1a5f53df383110b9b2c3ca119780984742bb00f1f34e9da

SHA512
8863297f7b1ff08520edf70611e9d25f9194b9af8d02a7f32e179d438193edac7d1d87a6e7fa1ec35d0f4a2e70fbcb3ee2dcb80a05466b0c4f360b2ba1911126

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
53e4885aed76ddcf63227e4091508b55

SHA1
0406c55bb335f4b70648657cb0da2e7feae55d21

SHA256
2e57318bc8caf849a1a5f53df383110b9b2c3ca119780984742bb00f1f34e9da

SHA512
8863297f7b1ff08520edf70611e9d25f9194b9af8d02a7f32e179d438193edac7d1d87a6e7fa1ec35d0f4a2e70fbcb3ee2dcb80a05466b0c4f360b2ba1911126

Download Submit
memory/2988-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2988-18-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/2988-12-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/2988-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2988-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3000-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3000-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads