d16dddc1e9ad69c5ef67afd93eb801c74ca5b95ec8b46741786c8c8ec47b1b1d

Analysis

max time kernel
134s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24-05-2024 20:20

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General

Target

heur002.dll
Size

117KB
MD5

ee21fd7fa9a45453ed55ccb7ce7b9aaa
SHA1

335d0f3bad37dfc77cafa85b2f56c27688e64e7d
SHA256

1f6a5cd4ec1e361925b80b7b4f18b77ff70f0d27d5f6bc043f605363f1f2ef05
SHA512

d8c244c3f188a9a348cf32f1982fe4a7ff7c5a21e45ef8a5a69033b7287fd1b83bf83de2659f9cdcd516e4bef17d84cec2f0a0abcb59108127f2c2ab771f865d
SSDEEP

3072:p0WzeOMDsoAwOSxoPMVsf0nQla8vxgs2N+r3rYF:uWq/DsRgPvSCsDr3r

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 3 IoCs

Processes:

rundll32.exe

description	ioc	process
File created	C:\Windows\Nail.txt	rundll32.exe
File created	C:\Windows\Nail.exe	rundll32.exe
File opened for modification	C:\Windows\Nail.exe	rundll32.exe

Modifies registry class 3 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 216 wrote to memory of 4688	216	rundll32.exe	rundll32.exe
PID 216 wrote to memory of 4688	216	rundll32.exe	rundll32.exe
PID 216 wrote to memory of 4688	216	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\heur002.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:216

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\heur002.dll,#1
2⤵
- Drops file in Windows directory
- Modifies registry class
PID:4688

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Windows\Nail.txt
Filesize
1024B

MD5
042981b3aba77cdf67bce3700276819d

SHA1
77139f9abf5becf2b04ba121ce7566b63c167c8f

SHA256
1db51bd47ff4a706056dfabce412478a50ce044ca1b9cb91c0d18b6bb303e9d1

SHA512
f0cff95e2d8c15f850894587ba1b02e263d8678ad4a6c89604c51d296e36414dea6de251e2f3e2fca89fabc09d692caf6d08984178fc5e833500d541b5d9bc9f

Download Submit
memory/4688-13-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

Filesize
4KB

Download
memory/4688-3-0x0000000001090000-0x0000000001091000-memory.dmp

Filesize
4KB

Download
memory/4688-12-0x0000000002A90000-0x0000000002A91000-memory.dmp

Filesize
4KB

Download
memory/4688-4-0x0000000001080000-0x0000000001081000-memory.dmp

Filesize
4KB

Download
memory/4688-11-0x0000000002A70000-0x0000000002A71000-memory.dmp

Filesize
4KB

Download
memory/4688-2-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

Filesize
4KB

Download
memory/4688-0-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download
memory/4688-19-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

Filesize
4KB

Download
memory/4688-18-0x0000000002B90000-0x0000000002B91000-memory.dmp

Filesize
4KB

Download
memory/4688-17-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

Filesize
4KB

Download
memory/4688-16-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

Filesize
4KB

Download
memory/4688-10-0x0000000000F10000-0x0000000000F11000-memory.dmp

Filesize
4KB

Download
memory/4688-14-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

Filesize
4KB

Download
memory/4688-1-0x0000000001000000-0x000000000102C000-memory.dmp

Filesize
176KB

Download
memory/4688-5-0x0000000001070000-0x0000000001071000-memory.dmp

Filesize
4KB

Download
memory/4688-6-0x0000000000F20000-0x0000000000F21000-memory.dmp

Filesize
4KB

Download
memory/4688-15-0x0000000002BF0000-0x0000000002BF1000-memory.dmp

Filesize
4KB

Download
memory/4688-9-0x00000000010A0000-0x00000000010A1000-memory.dmp

Filesize
4KB

Download
memory/4688-8-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

Filesize
4KB

Download
memory/4688-20-0x0000000002B10000-0x0000000002B11000-memory.dmp

Filesize
4KB

Download
memory/4688-21-0x0000000002B30000-0x0000000002B31000-memory.dmp

Filesize
4KB

Download
memory/4688-29-0x0000000002B80000-0x0000000002B81000-memory.dmp

Filesize
4KB

Download
memory/4688-28-0x0000000002B70000-0x0000000002B71000-memory.dmp

Filesize
4KB

Download
memory/4688-27-0x0000000002B60000-0x0000000002B61000-memory.dmp

Filesize
4KB

Download
memory/4688-25-0x0000000002B50000-0x0000000002B51000-memory.dmp

Filesize
4KB

Download
memory/4688-23-0x0000000002B40000-0x0000000002B41000-memory.dmp

Filesize
4KB

Download
memory/4688-22-0x0000000002B20000-0x0000000002B21000-memory.dmp

Filesize
4KB

Download
memory/4688-7-0x0000000002A60000-0x0000000002A61000-memory.dmp

Filesize
4KB

Download
memory/4688-33-0x0000000010000000-0x0000000010023000-memory.dmp

Filesize
140KB

Download