04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1

General

Target

04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Size

73KB
MD5

1c3775989e03de799a62061ef7bb2321
SHA1

fdf0a1fe8d0080d1722251758ee394ef4c4aa008
SHA256

04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1
SHA512

279f3c4de2ff6d7790b2b9a5d4eba0cc1f57e7db90eeb5d1ee0ecdb786faecddeb18aa777e80a7dd1bff41c64898112d92371348dcd7f91e09c051b1eff2df7b
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2260	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.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	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.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\notepad¢¬.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
File created	C:\Windows\SysWOW64\¢«.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
File created	C:\Windows\system\rundll32.exe	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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.exe %1"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697137163"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697137163"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\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\exefile\shell\open\command\ = "\"%1\" %*"	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2260	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
2260	rundll32.exe
2260	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27
PID 2228 wrote to memory of 2260	2228	04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe	27

C:\Users\Admin\AppData\Local\Temp\04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.exe
"C:\Users\Admin\AppData\Local\Temp\04a88978fa3aa202f80e68a53bc5f9e6a7f7746862b5ccf9025aaebffb3cc0f1.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:2228
- 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:2260

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
86KB

MD5
f153d6c330a3208bfe0ab586b402fcf8

SHA1
8b2ad0bd24bfac5bce174b3dd597557c30cf5b2b

SHA256
51a8d1df396e6428d029a05c1f099d0b4b4166845e4269834441422913c9e5c7

SHA512
cf4f298d63d8bc342ae24e5d1f87254b0d8075edda5d23ce616bc7b8b065d7511b997ac7cb29b0df39fa6d00c7c9028acd9e961b412f34d602a6374ca549c54d

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

Filesize
80KB

MD5
f14dde8b0f083bfcfa65979dcc7f751e

SHA1
640499a912003b791cefea8742e0a115811cc012

SHA256
924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9

SHA512
7018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2

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

Filesize
80KB

MD5
f14dde8b0f083bfcfa65979dcc7f751e

SHA1
640499a912003b791cefea8742e0a115811cc012

SHA256
924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9

SHA512
7018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
f14dde8b0f083bfcfa65979dcc7f751e

SHA1
640499a912003b791cefea8742e0a115811cc012

SHA256
924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9

SHA512
7018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
f14dde8b0f083bfcfa65979dcc7f751e

SHA1
640499a912003b791cefea8742e0a115811cc012

SHA256
924b5bd097650ee3f5c04f4469490a513314adddf77b77e39b78207c9629a6b9

SHA512
7018f20063945383ef9c830b9d69decf25274b0a2546488c70d4e536c8d6e5165516fddc45429f1fc8a5de409d7bde222f83f61b568a9d7e35254b86366518e2

Download Submit
memory/2228-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2228-11-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2228-18-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/2228-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2228-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2260-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2260-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads