General

  • Target
    Batch_11.zip
  • Size 3.9MB
  • Sample241122-ecwzaazmbr
  • SHA256 f6a83e6ed8bf92b8ff4da0aba72fe354199ec79a99008b34800e4cfdb92d3a67
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      VSNKLGuzoFJgFHyEI15w (2).exe
    • Size 357KB
    • SHA256 c8400b635f1b14bef0135631f05ae408bf551dac45fb23c1b26e20d60ea00f08
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      VSNKLGuzoFJgFHyEI15w.exe
    • Size 357KB
    • SHA256 c8400b635f1b14bef0135631f05ae408bf551dac45fb23c1b26e20d60ea00f08
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      VideoCodeCX.exe
    • Size 2.0MB
    • SHA256 22b1af46ce7b3db0ec037026e035b0b09a6c791e5fb5fcb5e6ee3ef8d276abe1
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • Modifies WinLogon for persistence

    • Loads dropped DLL

    • Blocklisted process makes network request

    • Enumerates connected drives

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

    • Target
      WcsPlugInService.ex.exe
    • Size 113KB
    • SHA256 8f0c20eab317c9416ad6dd602013528dca8ee1467b111019fe6704ff8da6a241
    • MD5 SHA1 SHA512 SSDEEP
    • Deletes itself

    • Adds Run key to start application

    • Blocklisted process makes network request

    • UPX packed file

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

    • Target
      WinLocker Builder.exe
    • Size 317KB
    • SHA256 3def8e9db50996046391a345099f3f7b023f8e0e26356702f73743e25d5716f8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    5/10
    • UPX packed file

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

    • Target
      WinLocker_Builder.exe
    • Size 314KB
    • SHA256 cfa91ed5fa38bc5e369b4bf4d59030be432d47b8e2f7e58b9f25c3c034654cc1
    • MD5 SHA1 SHA512 SSDEEP
    Score
    5/10
    • UPX packed file

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

    • Target
      _003E0000.exe.vir.exe
    • Size 116KB
    • SHA256 878304de96556ed340f190a9d8b5650dc71512eed4210676560fc41e7ac4857c
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      vmem02.exe
    • Size 36KB
    • SHA256 16e42d3e4af4d7de0bc9adfc317a68fffa41feb406e82d870bff657a86ab448e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      w8i9eHkHOwWwQlX.exe
    • Size 1.3MB
    • SHA256 7910428acb8eb014340219f413e4fcaab9bd31f9664e644fe91dacda9e65470d
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      wpbt0.dll
    • Size 50KB
    • SHA256 9282cdf4c83b4ca8015b0e450ac68c5bb7effe4503d3d34efa2ad496d37d2d26
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies WinLogon for persistence

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • UPX packed file

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

    • Target
      xpiofrbtkzhr.exe
    • Size 46KB
    • SHA256 6a298fd7189f63d29fb4c4cc342844a98c10945f8e0700363b0d078111568528
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • UPX packed file

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

    • Target
      xxx_video (2).exe
    • Size 608KB
    • SHA256 d51d08aef8661780261241ddb5bb2617b1fafa1ac1cdcad77e825c16faf48c79
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Target
      xxx_video.exe
    • Size 74KB
    • SHA256 2a9e5ded530da46678845fc5f3be1f83819b6a255765174eb4ae06ba4abb5b53
    • MD5 SHA1 SHA512 SSDEEP
    Score
    5/10
    • UPX packed file

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

    • Target
      xxx_video_26726.avi.exe
    • Size 62KB
    • SHA256 76520b94f15467309d3ca3d8022bb156e8daa811223774b7a74127881ab50fc0
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies WinLogon for persistence

    • UPX packed file

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

    • Target
      xxx_video_35942.avi.exe.vir.exe
    • Size 52KB
    • SHA256 0a5506d1867dbb76b428b099b2ae6a3ec0c85ec8dc855b66ae822fcc77ba0f12
    • MD5 SHA1 SHA512 SSDEEP
    • Modifies WinLogon for persistence

    • Event Triggered Execution: Image File Execution Options Injection

    • UPX packed file

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

    • Target
      xxx_video_35942.avi_unpacked_.exe.vir.exe
    • Size 74KB
    • SHA256 2c7a6f717702e2789aa4813bbeef2890edfcb216c0af83ac399015853c057c80
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    • Modifies WinLogon for persistence

    • Event Triggered Execution: Image File Execution Options Injection

MITRE ATT&CK Enterprise v15

Tasks

static1

upxxorist
Score
10/10

behavioral1

discovery
Score
3/10

behavioral2

discovery
Score
3/10

behavioral3

discovery
Score
3/10

behavioral4

discovery
Score
3/10

behavioral5

discoverypersistence
Score
10/10

behavioral6

discoverypersistence
Score
10/10

behavioral7

discoveryupx
Score
5/10

behavioral8

discoverypersistenceupx
Score
7/10

behavioral9

discoveryupx
Score
5/10

behavioral10

discoveryupx
Score
5/10

behavioral11

discoveryupx
Score
5/10

behavioral12

discoveryupx
Score
5/10

behavioral13

defense_evasiondiscoveryexecutionimpactpersistenceransomware
Score
9/10

behavioral14

discoverypersistence
Score
7/10

behavioral15

discovery
Score
3/10

behavioral16

discovery
Score
3/10

behavioral17

discovery
Score
3/10

behavioral18

discovery
Score
3/10

behavioral19

defense_evasiondiscoverypersistenceupx
Score
10/10

behavioral20

defense_evasiondiscoverypersistenceupx
Score
10/10

behavioral21

discoverypersistenceupx
Score
7/10

behavioral22

discoverypersistenceupx
Score
7/10

behavioral23

discoverypersistence
Score
7/10

behavioral24

discoverypersistence
Score
7/10

behavioral25

discoveryupx
Score
5/10

behavioral26

discoveryupx
Score
5/10

behavioral27

discoverypersistenceupx
Score
10/10

behavioral28

upx
Score
5/10

behavioral29

discoverypersistenceupx
Score
10/10

behavioral30

upx
Score
5/10

behavioral31

discoverypersistence
Score
10/10

behavioral32

discoverypersistence
Score
10/10