dc9d20cd3326273a57777cdcc31ee730988660b6eec9153647646e8cb9882829

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 07:37

Target

Conficker binaries/BD35D4D98FCBB1EC0E090FD2C631BAA5.dll
Size

62KB
MD5

bd35d4d98fcbb1ec0e090fd2c631baa5
SHA1

e48b2fcb09ada376895fc838a9c3c9e233c2ffba
SHA256

7b603982ded5d5e51fee8acce7c9be5e16be97330ef6036a461d5a5ed83e4829
SHA512

8946f19a085c5d590edb24faee28ed840333528a538a2c251f30a28c71ce9ae78e1d919ce286c124d0aa18749b1b30718b78baae43681480fdd5e7f3ba0fa863
SSDEEP

1536:2FXaaJ9lg392whB37UBqbLpK3TF5rwxk/yx8H4/0I2cduoM:4KMwQw/UBqfS56kYMTguo

Score

8^/10

upx

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow	pid	Process
4	1752	rundll32.exe

UPX packed file 3 IoCs

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

Processes:

resource	yara_rule
behavioral5/memory/1752-3-0x0000000010000000-0x0000000010018000-memory.dmp	upx
behavioral5/memory/1752-2-0x0000000010000000-0x0000000010018000-memory.dmp	upx
behavioral5/memory/1752-1-0x0000000010000000-0x0000000010018000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

Processes:

rundll32.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\jlwjjhkk.wjk	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\jlwjjhkk.wjk	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28
PID 1804 wrote to memory of 1752	1804	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Conficker binaries\BD35D4D98FCBB1EC0E090FD2C631BAA5.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1804
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Conficker binaries\BD35D4D98FCBB1EC0E090FD2C631BAA5.dll",#1
  2⤵
  - Blocklisted process makes network request
  - Drops file in System32 directory
  PID:1752

memory/1752-3-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1752-2-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1752-1-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1752-0-0x0000000010000000-0x0000000010018000-memory.dmp

Filesize
96KB

Download
memory/1752-7-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download
memory/1752-9-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download
memory/1752-10-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download
memory/1752-11-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download
memory/1752-12-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download