Resubmissions

23-02-2023 09:07

230223-k3mfeshb8w 10

22-02-2023 13:48

230222-q4kacadf71 10

21-02-2023 11:15

230221-ncjhmaee87 10

21-02-2023 11:01

230221-m4tl8sgd6w 10

21-02-2023 09:02

230221-kzr7haga9w 10

20-02-2023 12:30

230220-ppg11aba52 10

Analysis

  • max time kernel
    150s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-02-2023 11:15

General

  • Target

    file.exe

  • Size

    3.3MB

  • MD5

    69df9998a42524225a5b25d2e8a5bd79

  • SHA1

    08d01a8d0a17b6d565eeb38e003a79cda4608ab2

  • SHA256

    1bf1a0cbe61b5693903760d0bff9c3cb53a7c43061437e367b19a77b55aaadfa

  • SHA512

    5b5760e2de414e6fe18df95553b5a1046a613b11252585e35667b804ff06ece7cc210a366509fbf9fb606dd8b5cddd4b613b8d7b70aef431c1241b3dc256d790

  • SSDEEP

    49152:9es+BvKs6POj/T3K2Umsv/kd2BEmgNVfDdv3n9RIZqpCatWuOnqdEb+RPz:ksOFVrTa2E/VEmgNVfDx3nTTrEbQPz

Malware Config

Extracted

Family

vidar

Version

2.5

Botnet

813

Attributes
  • profile_id

    813

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    PID:1088

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab4F99.tmp
    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\Local\Temp\Tar5019.tmp
    Filesize

    161KB

    MD5

    73b4b714b42fc9a6aaefd0ae59adb009

    SHA1

    efdaffd5b0ad21913d22001d91bf6c19ecb4ac41

    SHA256

    c0cf8cc04c34b5b80a2d86ad0eafb2dd71436f070c86b0321fba0201879625fd

    SHA512

    73af3c51b15f89237552b1718bef21fd80788fa416bab2cb2e7fb3a60d56249a716eda0d2dd68ab643752272640e7eaaaf57ce64bcb38373ddc3d035fb8d57cd

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/1088-54-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB

  • memory/1088-56-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB

  • memory/1088-60-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB

  • memory/1088-108-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB

  • memory/1088-111-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB

  • memory/1088-121-0x00000000511B0000-0x00000000512A3000-memory.dmp
    Filesize

    972KB

  • memory/1088-171-0x0000000000400000-0x00000000009B9000-memory.dmp
    Filesize

    5.7MB