b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8

Analysis

max time kernel
142s
max time network
132s
platform
windows10-1703_x64
resource
win10-20231023-en
resource tags

arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
submitted
10/12/2023, 21:23

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General

Target

b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe
Size

6.9MB
MD5

83ea8f15399153197e09bc01dc56eba8
SHA1

ee269aad4456eb47ee58e23f0329b83b1c7db09f
SHA256

b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8
SHA512

b24f0519abd80edaca9d5d76e7d12849d7062035ea6270b4387cb0fd100874d63b945b6428e34df554e0570401477c8187ffc8a20c6979ae2c1af5889974993e
SSDEEP

98304:h+koiRLFdsODKUdFxQ8k618KzAYYC9z3Bbgtev25o40nsZJjNw5MQNiEU4P5EKHl:cz25G6bV1yYDuZxCWQNhUU2uNzj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3224	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp

Loads dropped DLL 3 IoCs

pid	Process
3224	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
3224	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
3224	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-K53AG.tmp	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-7HFNO.tmp	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-AQMF5.tmp	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-OUBEE.tmp	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3224	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 3224	1000	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe	71
PID 1000 wrote to memory of 3224	1000	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe	71
PID 1000 wrote to memory of 3224	1000	b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe	71

C:\Users\Admin\AppData\Local\Temp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe
"C:\Users\Admin\AppData\Local\Temp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Users\Admin\AppData\Local\Temp\is-IOKV3.tmp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-IOKV3.tmp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp" /SL5="$E01E2,6985375,54272,C:\Users\Admin\AppData\Local\Temp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  PID:3224

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-IOKV3.tmp\b739f72aa7fd38f424535b1d1930ac56dda4640646df029b7693e9d901d93ea8.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
\Users\Admin\AppData\Local\Temp\is-C6DLG.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-C6DLG.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
memory/1000-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1000-32-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3224-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/3224-33-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3224-36-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download