73844be31e3efa06d5ab2bd9ed56c5e0421ccd1078340539433efcae288827f3

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
19-04-2024 00:07

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General

Target

VoidNETFree/VoidNET-starter.bat
Size

312B
MD5

a151263c8baca70903618db739413eb0
SHA1

76c56db74239c2189634c2ba3972ba84429e42aa
SHA256

5b6cff4d753884e5a47059babbffe6d54aac0383b481d2ed62e65ae2824dd88a
SHA512

f56c16d753ed1fc35aa96426bd4d0463e13479051c6e26ae6afd89d3352905448b8be212e7d05ad4c3ee3bc14a80d2271b51aae499a00d31400429651486072f

Score

7^/10

upx

Malware Config

Signatures

Loads dropped DLL 7 IoCs

pid	Process
2688	API.exe
2688	API.exe
2688	API.exe
2688	API.exe
2688	API.exe
2688	API.exe
2688	API.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral5/files/0x0006000000016cb0-73.dat	upx

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 3040	2784	cmd.exe	29
PID 2784 wrote to memory of 3040	2784	cmd.exe	29
PID 2784 wrote to memory of 3040	2784	cmd.exe	29
PID 2784 wrote to memory of 3060	2784	cmd.exe	30
PID 2784 wrote to memory of 3060	2784	cmd.exe	30
PID 2784 wrote to memory of 3060	2784	cmd.exe	30
PID 3040 wrote to memory of 2688	3040	API.exe	32
PID 3040 wrote to memory of 2688	3040	API.exe	32
PID 3040 wrote to memory of 2688	3040	API.exe	32

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\VoidNETFree\VoidNET-starter.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\VoidNETFree\API.exe
  "API.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3040
- - C:\Users\Admin\AppData\Local\Temp\VoidNETFree\API.exe
    "API.exe"
    3⤵
    - Loads dropped DLL
    PID:2688
- C:\Windows\system32\cmd.exe
  cmd /c "python VoidNET-free.py"
  2⤵
  PID:3060

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_MEI30402\api-ms-win-core-file-l1-2-0.dll

Filesize
20KB

MD5
b59d773b0848785a76baba82d3f775fa

SHA1
1b8dcd7f0e2ab0ba9ba302aa4e9c4bfa8da74a82

SHA256
0dc1f695befddb8ee52a308801410f2f1d115fc70668131075c2dbcfa0b6f9a0

SHA512
cbd52ed8a7471187d74367aa03bf097d9eac3e0d6dc64baf835744a09da0b050537ea6092dcb8b1e0365427e7f27315be2145c6f853ef936755ad07ef17d4a26

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\api-ms-win-core-file-l2-1-0.dll

Filesize
20KB

MD5
4c9bf992ae40c7460a029b1046a7fb5e

SHA1
79e13947af1d603c964cce3b225306cadff4058b

SHA256
18655793b4d489f769327e3c8710aced6b763c7873b6a8dc5ae6f28d228647f4

SHA512
c36d455ac79a73758f6090977c204764a88e929e8eaa7ce27a9c9920451c014e84ae98beb447e8345a8fa186b8c668b076c0ed27047a0e23ad2eeaf2cbc3a8d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\api-ms-win-core-localization-l1-2-0.dll

Filesize
20KB

MD5
9d8e7a90dd0d54b7ccde435b977ee46d

SHA1
15cd12089c63f4147648856b16193cf014e6764f

SHA256
dc570708327c4c8419d4cced2a162d7ca112a168301134dd1fb5e2040eee45b6

SHA512
339fe195602355bce26a2526613a212271e7f8c7518d591b9e3c795c154d93b29b8c524b2c3678c799d0ea0101eabea918564e49def0b915af0619e975f1c34b

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\api-ms-win-core-processthreads-l1-1-1.dll

Filesize
20KB

MD5
d399c926466f044f183faa723ba59120

SHA1
a9534b4910888d70eefba6fcc3376f2549cb4a05

SHA256
19b018be16afe143fb107ef1dd5b8e6c6cb45966806eb3d31ec09ff0dc2b70d1

SHA512
fc55f4cfe7c6c63e0720971d920c5c6ead4db74a671f7bb8dc830aa87cb54459a62e974456875bdfda449d82a0acb368e3b6c2cc20c32b1b407e8de7cc532057

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\api-ms-win-core-timezone-l1-1-0.dll

Filesize
20KB

MD5
ea5f768b9a1664884ae4ae62cec90678

SHA1
ae08e80431da7f4e8f1e5457c255cc360ef1cac0

SHA256
24f4530debf2161e0d0256f923b836aeccc3278a6ff2c9400e415600276b5a6d

SHA512
411db31e994ebbc69971972e45d6e51186d8f8790e8c67660b6a846e48a5a5c53a113916a5a15d14c33d8c88037d7f252135e699cb526c4bb3b5abd2e2dfee7c

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\python310.dll

Filesize
1.4MB

MD5
b93eda8cc111a5bde906505224b717c3

SHA1
5f1ae1ab1a3c4c023ea8138d4b09cbc1cd8e8f9e

SHA256
efa27cd726dbf3bf2448476a993dc0d5ffb0264032bf83a72295ab3fc5bcd983

SHA512
b20195930967b4dc9f60c15d9ceae4d577b00095f07bd93aa4f292b94a2e5601d605659e95d5168c1c2d85dc87a54d27775f8f20ebcacf56904e4aa30f1affba

Download Submit
C:\Users\Admin\AppData\Local\Temp\_MEI30402\ucrtbase.dll

Filesize
1.1MB

MD5
b0397bb83c9d579224e464eebf40a090

SHA1
81efdfe57225dfe581aafb930347535f08f2f4ce

SHA256
d2ebd8719455ae4634d00fd0d0eb0c3ad75054fee4ff545346a1524e5d7e3a66

SHA512
e72a4378ed93cfb3da60d69af8103a0dcb9a69a86ee42f004db29771b00a606fbc9cbc37f3daa155d1d5fe85f82c87ca9898a39c7274462fcf5c4420f0581ab3

Download Submit
memory/2688-75-0x000007FEF6330000-0x000007FEF6795000-memory.dmp

Filesize
4.4MB

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads