Analysis

  • max time kernel
    122s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14/10/2023, 19:09

General

  • Target

    NEAS.b5876f3fe5c412cd08e8cdb65c982850.exe

  • Size

    8KB

  • MD5

    b5876f3fe5c412cd08e8cdb65c982850

  • SHA1

    d1933c923a87ff1202289991fc701f8495ac57d5

  • SHA256

    5e88fd24c9985863bc853becfad7ea4b5907160c15034d6a990174cf577fbde8

  • SHA512

    b0cd9563c15f067bdb43fd78c5f93ae7375e87dddfae3adc95ec4a41a419731635f5e3d68a71e3dd78f7c56d10545d18dc3241022384ae54ef873179dbfd713c

  • SSDEEP

    96:QtTcnngncTXghZd5WeOU4GQsPb5CyeYWSUqfwYLLLiiKkygdTKXbyfsaIBCpmUPn:QpGWcTQvbqFzKb9Vfj5TKLyk/CpmU6tG

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.b5876f3fe5c412cd08e8cdb65c982850.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.b5876f3fe5c412cd08e8cdb65c982850.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\fcbnaf.exe
      "C:\Users\Admin\AppData\Local\Temp\fcbnaf.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1380

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          344B

          MD5

          f2265c013d89b6a93d18c4a63a8f14e8

          SHA1

          01d192885f7877eb422e5d2cb99d0eee013910c7

          SHA256

          a45d68189066a4d30b80de8b616616324c99b1da023620af4985461dc9da063f

          SHA512

          267bdb7a07c72269aea56e39b17c6fec4907193ddda96e7f95ff81ebc9f257aab90aef9bdbaa0cfdadb7a483291d812a3b4ec51161e431bf6b93f9b2bed7dd54

        • C:\Users\Admin\AppData\Local\Temp\Cab39C8.tmp

          Filesize

          61KB

          MD5

          f3441b8572aae8801c04f3060b550443

          SHA1

          4ef0a35436125d6821831ef36c28ffaf196cda15

          SHA256

          6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

          SHA512

          5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

        • C:\Users\Admin\AppData\Local\Temp\Tar3A47.tmp

          Filesize

          163KB

          MD5

          9441737383d21192400eca82fda910ec

          SHA1

          725e0d606a4fc9ba44aa8ffde65bed15e65367e4

          SHA256

          bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

          SHA512

          7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

        • C:\Users\Admin\AppData\Local\Temp\fcbnaf.exe

          Filesize

          8KB

          MD5

          f85c3e3771116160392dff1e275b5e2a

          SHA1

          208057790c0e1fcfa1d2677dbf57f9e57ba48664

          SHA256

          66ef74fc7fdfb055eedd0798f7972e673db4c32d6954d1e3f68b2e49195fec55

          SHA512

          16ab7f6d9fafdb5d738e01b8f175500e79d234992c6154fe0aa6e61b501f1c1983a727c71e3365fc5cd292d94133d9a66a2b6b085c86d7ca1ac7d16553569d73

        • C:\Users\Admin\AppData\Local\Temp\fcbnaf.exe

          Filesize

          8KB

          MD5

          f85c3e3771116160392dff1e275b5e2a

          SHA1

          208057790c0e1fcfa1d2677dbf57f9e57ba48664

          SHA256

          66ef74fc7fdfb055eedd0798f7972e673db4c32d6954d1e3f68b2e49195fec55

          SHA512

          16ab7f6d9fafdb5d738e01b8f175500e79d234992c6154fe0aa6e61b501f1c1983a727c71e3365fc5cd292d94133d9a66a2b6b085c86d7ca1ac7d16553569d73

        • C:\Users\Admin\AppData\Local\Temp\fcbnaf.exe

          Filesize

          8KB

          MD5

          f85c3e3771116160392dff1e275b5e2a

          SHA1

          208057790c0e1fcfa1d2677dbf57f9e57ba48664

          SHA256

          66ef74fc7fdfb055eedd0798f7972e673db4c32d6954d1e3f68b2e49195fec55

          SHA512

          16ab7f6d9fafdb5d738e01b8f175500e79d234992c6154fe0aa6e61b501f1c1983a727c71e3365fc5cd292d94133d9a66a2b6b085c86d7ca1ac7d16553569d73

        • \Users\Admin\AppData\Local\Temp\fcbnaf.exe

          Filesize

          8KB

          MD5

          f85c3e3771116160392dff1e275b5e2a

          SHA1

          208057790c0e1fcfa1d2677dbf57f9e57ba48664

          SHA256

          66ef74fc7fdfb055eedd0798f7972e673db4c32d6954d1e3f68b2e49195fec55

          SHA512

          16ab7f6d9fafdb5d738e01b8f175500e79d234992c6154fe0aa6e61b501f1c1983a727c71e3365fc5cd292d94133d9a66a2b6b085c86d7ca1ac7d16553569d73

        • \Users\Admin\AppData\Local\Temp\fcbnaf.exe

          Filesize

          8KB

          MD5

          f85c3e3771116160392dff1e275b5e2a

          SHA1

          208057790c0e1fcfa1d2677dbf57f9e57ba48664

          SHA256

          66ef74fc7fdfb055eedd0798f7972e673db4c32d6954d1e3f68b2e49195fec55

          SHA512

          16ab7f6d9fafdb5d738e01b8f175500e79d234992c6154fe0aa6e61b501f1c1983a727c71e3365fc5cd292d94133d9a66a2b6b085c86d7ca1ac7d16553569d73