General

  • Target
    889e3c9b82b83485a2f4c2862c2ca2290e9312a9306b97c4e424f8b09265c7ec
  • Size 2.0MB
  • Sample260928-d8ty5avyht
  • SHA256 889e3c9b82b83485a2f4c2862c2ca2290e9312a9306b97c4e424f8b09265c7ec
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • valleyrat_s2

Version
  • 1.0

C2
  • 108.187.43.208:449

  • 108.187.43.208:443

Targets

    • Target
      115Q3申報清單.exe
    • Size 343KB
    • SHA256 6d3fee81ad1339b8e9a2ae7d24669fc9ad9ec84c3b13932289fb20a25bce5596
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detects ValleyRAT payload

    • Family: ValleyRat

      ValleyRat stage2 is a backdoor written in C++.

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      DriverLib.dll
    • Size 387KB
    • SHA256 d1f93def665db5c4debf60314af20c13f054913bed2241dd370bb20b43245f5c
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    • Executes dropped EXE

    • Target
      appshare.dll
    • Size 251KB
    • SHA256 339cef1ca6daa65126507c76b5ff93540d4696329370750129039b760455af6b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      mediastores.dll
    • Size 248KB
    • SHA256 02f7f062d9065e15b064afd94137da0723ac19db953733800ea3a04394ba44b5
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      msvcp140.dll
    • Size 553KB
    • SHA256 3048df1cf8d476e998dde28ed6b67856b47ec5ae2b2c221fb1733f43c550c701
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      msvcp140_1.dll
    • Size 25KB
    • SHA256 086e083da4e7a46438aff3188beb2c0d14cb38af216c62a880cd8209dfcfcca8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      msvcp140_2.dll
    • Size 252KB
    • SHA256 5fd1bf62b065bd9a8bcbf8552d9ffd24f96341c10a4b93c5be0282a2f704fb2e
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      msvcp140_atomic_wait.dll
    • Size 39KB
    • SHA256 d4fdd222f3f2880651edf6802bc44710a3d66c691c3afb7fe2bf3229f06ff935
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      msvcp140_codecvt_ids.dll
    • Size 21KB
    • SHA256 109312ce9e35c66c8f411d1fc74aba902c46cd65ca40883d2eb779fb09031c33
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      util.dll
    • Size 1.4MB
    • SHA256 889c8747e20356a83f7e81c1206de869beeed3707408716656ab5b5a14451044
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      vccorlib140.dll
    • Size 336KB
    • SHA256 430accf44c39446446cf541174ad4fa4e8a25e603c389a524caf8de1606e45be
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      vcruntime140.dll
    • Size 108KB
    • SHA256 9593801b89cf3c0a46056f4d923d67b5c685fb8760f007b4d194e4a6a6ed9396
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      vcruntime140_1.dll
    • Size 38KB
    • SHA256 b49a9b9c334e66bb14e0bd784be2e0a86edc7d24a9ebf90d1b2bbd71451695c9
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      vcruntime140_threads.dll
    • Size 27KB
    • SHA256 2f2709047b2e0ec13e4e344f0a044453880fb179522f995d848589ad5e31637f
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
5/10

behavioral1

backdoordefense_evasiondiscoveryvalleyrat_s2persistencespywaretrojan
Score
10/10

behavioral2

backdoordefense_evasiondiscoveryvalleyrat_s2persistencespywaretrojan
Score
10/10

behavioral3

Score
7/10

behavioral4

Score
7/10

behavioral5

Score
1/10

behavioral6

Score
1/10

behavioral7

Score
1/10

behavioral8

Score
1/10

behavioral9

Score
1/10

behavioral10

Score
1/10

behavioral11

Score
1/10

behavioral12

Score
1/10

behavioral13

Score
1/10

behavioral14

Score
1/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
1/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

Score
1/10

behavioral25

Score
1/10

behavioral26

Score
1/10

behavioral27

Score
1/10

behavioral28

Score
1/10