a79e50e75bb460b965145638b3ed120d2c86fb4ac606ef51bc3c4922cf0fe3e6

Analysis

max time kernel
302s
max time network
351s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 21:08

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General

Target

AllVideoSoundExtractor/lpk.dll
Size

46KB
MD5

77774d76e724ae9017bac8609947899c
SHA1

efd281c15cc901fee9c64f88fd0b74eb1fa82b57
SHA256

2017c37d13d1c5475cb1532f06a87ae60b1b5852a405a2b6c24d881efe7aba08
SHA512

68d88ff7c3e130f2ac25e73ba92398dd2b8a6dba26980395996ed6c8e7a4a404de30ce40f9819925afe55040c8f69e6461b7f8349d8de5f2ccdf19116407699f
SSDEEP

768:IUWUAohfjiT5ediDgEYe5eWomHEo2fKEFCLxu5qr7Ho73UEWkGpIfxMC:10qfWT5MbEYme9aLMBCVuEXID3x+C

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

hrl7437.tmpgcogye.exe

pid process

5108 hrl7437.tmp
1524 gcogye.exe

pid	process
5108	hrl7437.tmp
1524	gcogye.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp	upx
behavioral4/memory/5108-135-0x0000000000400000-0x000000000041D000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp	upx
C:\Windows\SysWOW64\gcogye.exe	upx
C:\Windows\SysWOW64\gcogye.exe	upx
behavioral4/memory/5108-139-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral4/memory/1524-140-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral4/memory/1524-141-0x0000000000400000-0x000000000041D000-memory.dmp	upx
behavioral4/memory/1524-143-0x0000000000400000-0x000000000041D000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

gcogye.exe

pid process

1524 gcogye.exe

pid	process
1524	gcogye.exe

Drops file in System32 directory 3 IoCs

Processes:

hrl7437.tmpgcogye.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\gcogye.exe	hrl7437.tmp
File created	C:\Windows\SysWOW64\gei33.dll	gcogye.exe
File created	C:\Windows\SysWOW64\gcogye.exe	hrl7437.tmp

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 4944 wrote to memory of 4680	4944	rundll32.exe	rundll32.exe
PID 4944 wrote to memory of 4680	4944	rundll32.exe	rundll32.exe
PID 4944 wrote to memory of 4680	4944	rundll32.exe	rundll32.exe
PID 4680 wrote to memory of 5108	4680	rundll32.exe	hrl7437.tmp
PID 4680 wrote to memory of 5108	4680	rundll32.exe	hrl7437.tmp
PID 4680 wrote to memory of 5108	4680	rundll32.exe	hrl7437.tmp

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\AllVideoSoundExtractor\lpk.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4944

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\AllVideoSoundExtractor\lpk.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:4680

C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp
C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp
3⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:5108

C:\Windows\SysWOW64\gcogye.exe
C:\Windows\SysWOW64\gcogye.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in System32 directory
PID:1524

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp
Filesize
33KB

MD5
1c5ff68d8d5bacf2524969da10883415

SHA1
3e3bd98a285bced519a81bd418a7a506e417c36e

SHA256
686ce3c2b25244c8877d0e8db076055632039a55bba236843a5ef18e187feb0b

SHA512
b10e5ae908f7e473f1314432227faa5e46615609384ebd4b82ccd3b1d5bc91d6e53662470a257e9f9c3c40983a081d609a7acae430edb0b6bfbe4fa30a89245f

Download Submit
C:\Users\Admin\AppData\Local\Temp\hrl7437.tmp
Filesize
33KB

MD5
1c5ff68d8d5bacf2524969da10883415

SHA1
3e3bd98a285bced519a81bd418a7a506e417c36e

SHA256
686ce3c2b25244c8877d0e8db076055632039a55bba236843a5ef18e187feb0b

SHA512
b10e5ae908f7e473f1314432227faa5e46615609384ebd4b82ccd3b1d5bc91d6e53662470a257e9f9c3c40983a081d609a7acae430edb0b6bfbe4fa30a89245f

Download Submit
C:\Windows\SysWOW64\gcogye.exe
Filesize
33KB

MD5
1c5ff68d8d5bacf2524969da10883415

SHA1
3e3bd98a285bced519a81bd418a7a506e417c36e

SHA256
686ce3c2b25244c8877d0e8db076055632039a55bba236843a5ef18e187feb0b

SHA512
b10e5ae908f7e473f1314432227faa5e46615609384ebd4b82ccd3b1d5bc91d6e53662470a257e9f9c3c40983a081d609a7acae430edb0b6bfbe4fa30a89245f

Download Submit
C:\Windows\SysWOW64\gcogye.exe
Filesize
33KB

MD5
1c5ff68d8d5bacf2524969da10883415

SHA1
3e3bd98a285bced519a81bd418a7a506e417c36e

SHA256
686ce3c2b25244c8877d0e8db076055632039a55bba236843a5ef18e187feb0b

SHA512
b10e5ae908f7e473f1314432227faa5e46615609384ebd4b82ccd3b1d5bc91d6e53662470a257e9f9c3c40983a081d609a7acae430edb0b6bfbe4fa30a89245f

Download Submit
C:\Windows\SysWOW64\gei33.dll
Filesize
46KB

MD5
77774d76e724ae9017bac8609947899c

SHA1
efd281c15cc901fee9c64f88fd0b74eb1fa82b57

SHA256
2017c37d13d1c5475cb1532f06a87ae60b1b5852a405a2b6c24d881efe7aba08

SHA512
68d88ff7c3e130f2ac25e73ba92398dd2b8a6dba26980395996ed6c8e7a4a404de30ce40f9819925afe55040c8f69e6461b7f8349d8de5f2ccdf19116407699f

Download Submit
memory/1524-140-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1524-141-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/1524-143-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/4680-132-0x0000000000000000-mapping.dmp

Download
memory/5108-133-0x0000000000000000-mapping.dmp

Download
memory/5108-135-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download
memory/5108-139-0x0000000000400000-0x000000000041D000-memory.dmp

Filesize
116KB

Download