13b53805eea398120c1cc1da1bd10868256259ee8598c7988b204e2132a40933

Analysis

max time kernel
141s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01-02-2024 07:07

Target

$PLUGINSDIR/nsRandom.dll
Size

21KB
MD5

ab467b8dfaa660a0f0e5b26e28af5735
SHA1

596abd2c31eaff3479edf2069db1c155b59ce74d
SHA256

db267d9920395b4badc48de04df99dfd21d579480d103cae0f48e6578197ff73
SHA512

7d002dc203997b8a4d8ec20c92cd82848e29d746414f4a61265c76d4afb12c05bce826fc63f4d2bd3d527f38506c391855767d864c37584df11b5db9ca008301
SSDEEP

384:LCHDPMs4GdtyO5roguusMxUXiO3wOw95euooP2UgKbd9BvNtf:LCHD6Gh87MKXil/5r2U3z

Score

7^/10

upx

UPX packed file 3 IoCs

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

resource	yara_rule
behavioral13/memory/1948-0-0x00000000000A0000-0x00000000000B2000-memory.dmp	upx
behavioral13/memory/1948-2-0x00000000000B0000-0x00000000000C2000-memory.dmp	upx
behavioral13/memory/1948-4-0x00000000000B0000-0x00000000000C2000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2860	1948	WerFault.exe	28

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1704 wrote to memory of 1948	1704	rundll32.exe	28
PID 1948 wrote to memory of 2860	1948	rundll32.exe	29
PID 1948 wrote to memory of 2860	1948	rundll32.exe	29
PID 1948 wrote to memory of 2860	1948	rundll32.exe	29
PID 1948 wrote to memory of 2860	1948	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRandom.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRandom.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1948
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 232
    3⤵
    - Program crash
    PID:2860

memory/1948-0-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download
memory/1948-1-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download
memory/1948-2-0x00000000000B0000-0x00000000000C2000-memory.dmp

Filesize
72KB

Download
memory/1948-3-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download
memory/1948-4-0x00000000000B0000-0x00000000000C2000-memory.dmp

Filesize
72KB

Download
memory/1948-5-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download
memory/1948-7-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download
memory/1948-8-0x00000000000A0000-0x00000000000B2000-memory.dmp

Filesize
72KB

Download