d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207

Analysis

max time kernel
142s
max time network
121s
platform
windows10-1703_x64
resource
win10-20231023-en
resource tags

arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
submitted
11-12-2023 06:10

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General

Target

d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe
Size

6.9MB
MD5

f7c2a0c5cf5772608af14efaa7865f80
SHA1

3a2029385a567815fec7e39513f6ed975f4a77e3
SHA256

d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207
SHA512

ead1f489cd12231a2b747b935a3abffa056f9537f5ea5d83641dbc4c0ccb4c8d904ba58c0c71822ee00177b30ca732ea9e13dff73c7a54cc2c2fa6b12fc484b2
SSDEEP

196608:UH/2cOhoGEpX+jRFRvz29jgM7+3Utny3r/mvZO0agzj:ZcOhoGE1ArRvqlgM7xtAT0Hzj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1700	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp

Loads dropped DLL 3 IoCs

pid	Process
1700	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
1700	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
1700	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WMAFormat\stuff\is-6TK6H.tmp	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
File created	C:\Program Files (x86)\WMAFormat\stuff\is-1IKFJ.tmp	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
File created	C:\Program Files (x86)\WMAFormat\uninstall\unins000.dat	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
File created	C:\Program Files (x86)\WMAFormat\uninstall\is-AL9OA.tmp	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
File created	C:\Program Files (x86)\WMAFormat\stuff\is-20RIV.tmp	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1700	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 1700	4824	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe	71
PID 4824 wrote to memory of 1700	4824	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe	71
PID 4824 wrote to memory of 1700	4824	d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe	71

C:\Users\Admin\AppData\Local\Temp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe
"C:\Users\Admin\AppData\Local\Temp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Users\Admin\AppData\Local\Temp\is-KFNLK.tmp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KFNLK.tmp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp" /SL5="$40246,6982471,68096,C:\Users\Admin\AppData\Local\Temp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  PID:1700

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-KFNLK.tmp\d39bf9428ba3e00e0f36f9ffda4a6dc46f7d0d25be7dbd64ffd35e311afb5207.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
\Users\Admin\AppData\Local\Temp\is-TRC81.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-TRC81.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
memory/1700-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1700-33-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1700-36-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/4824-0-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/4824-32-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download