c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5

General

Target

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Size

79KB
MD5

1e56864cdae509a588b60a69e12499e7
SHA1

3619596d43b49b52439b3448f903b4615add70af
SHA256

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5
SHA512

aec68f512b1edd3b5a948be1aa79415a19ca93b5769492008a4c520755b101d5cbbdbe3c1b679f42619960fff6c379eb369ebe66d4246e5a710000a6c726f293
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOu9w:GhfxHNIreQm+Hi/9w

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

1520 rundll32.exe

pid	process
1520	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.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

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
File created	C:\Windows\SysWOW64\¢«.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

Drops file in Windows directory 2 IoCs

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
File created	C:\Windows\system\rundll32.exe	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

Modifies registry class 15 IoCs

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exerundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716518224"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716518224"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

pid	process
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

1520 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exerundll32.exe

pid process

2256 c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
1520 rundll32.exe
1520 rundll32.exe

pid	process
1520	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe

description	pid	process	target process
PID 2256 wrote to memory of 1520	2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe	rundll32.exe
PID 2256 wrote to memory of 1520	2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe	rundll32.exe
PID 2256 wrote to memory of 1520	2256	c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.exe
"C:\Users\Admin\AppData\Local\Temp\c1a18dcd01678b268380e3575e37fcd49b1f66ed06b086fef5b568a03f47e6e5.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:2256

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:1520

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
74KB

MD5
b3e4338a4915638da305690cbea6a1dc

SHA1
85e9e15b8d743096c3e901809ef4a7d8094782a9

SHA256
6616464ff2690e609f11ba83152524662339cf6b0e03e45a7d5a23d7e5f4950d

SHA512
0896e0e7b1b9ef2e4f3917af204d4d53b0414d85b2c5dc684612ca064b910c3c8f76330506265f216c0e0b8b156cb3dc1ef609b41b2e5952569dc73c32b12613

Download Submit
C:\Windows\System\rundll32.exe
Filesize
84KB

MD5
30af35ada03c461b53e3bc2e10f37e44

SHA1
8d9566db34cffafe6199c4070da1c37fb9b1e768

SHA256
b8f7d18e15536063f6861cbce4be8678bb8d2f05fcf39d2e3b27a24c24522a3c

SHA512
600f6719bc5c0076190e77ab9aeac8212f9a86efc47165aeaaf72112d96ccd016f726c01869a9c3b83eb1ef331597da0b491405d75eb9a245000ee06a604c107

Download Submit
memory/2256-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2256-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads