Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/12/2023, 21:33 UTC

General

  • Target

    KNRyOLnGcT_UKWN.jar

  • Size

    1.2MB

  • MD5

    5cdffc26c265c48cdbbf1aae06cc101c

  • SHA1

    566fb395a9586ca59c4317af8b8a6e656352d5fa

  • SHA256

    5a894d00f75d512b8b3604dabf49b049f40721a82397ac2e6bdf3f910565c737

  • SHA512

    f0976bf6d5d35f36a8c625b5e520c94e1569da793d3d03e86bd9c6531a0ca2790f003bd5be210267081632e21964fd81936bfbad8cd9d81918666b53514058fd

  • SSDEEP

    24576:q5P4Aday/1OtGC/HPXubl2Emy4AK+5pCwncs9hJh0+bqbK9X2XzVR:MdX8PXuIZZLkpCts9hJh0+OuIzz

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 24 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\KNRyOLnGcT_UKWN.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Windows\SYSTEM32\wscript.exe
      wscript C:\Users\Admin\_output.js
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2656
      • C:\Program Files\Java\jre-1.8\bin\javaw.exe
        "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Roaming\eqvcqytqg.txt"
        3⤵
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:4656
        • C:\Program Files\Java\jre-1.8\bin\java.exe
          "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar C:\Users\Admin\AppData\Local\Temp\_0.67771077893711063540065672889955501.class
          4⤵
          • Drops file in Program Files directory
          PID:4716
      • C:\Windows\System32\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\eVvEfMYHrV.js"
        3⤵
        • Drops startup file
        • Adds Run key to start application
        PID:4004
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:3952

Network

  • flag-us
    DNS
    17.160.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    17.160.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    2.136.104.51.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    2.136.104.51.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    2.136.104.51.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    2.136.104.51.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    95.221.229.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    95.221.229.192.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    9.228.82.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    9.228.82.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    3.181.190.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    3.181.190.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    194.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    194.178.17.96.in-addr.arpa
    IN PTR
    Response
    194.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-194deploystaticakamaitechnologiescom
  • flag-us
    DNS
    26.165.165.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    26.165.165.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    18.31.95.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.31.95.13.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    41.110.16.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    41.110.16.96.in-addr.arpa
    IN PTR
    Response
    41.110.16.96.in-addr.arpa
    IN PTR
    a96-16-110-41deploystaticakamaitechnologiescom
  • flag-us
    DNS
    41.110.16.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    41.110.16.96.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    41.110.16.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    41.110.16.96.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    18.134.221.88.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.134.221.88.in-addr.arpa
    IN PTR
    Response
    18.134.221.88.in-addr.arpa
    IN PTR
    a88-221-134-18deploystaticakamaitechnologiescom
  • flag-us
    DNS
    18.134.221.88.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.134.221.88.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    18.134.221.88.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    18.134.221.88.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    208.194.73.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    208.194.73.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    119.110.54.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    119.110.54.20.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    119.110.54.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    119.110.54.20.in-addr.arpa
    IN PTR
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    30.243.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    30.243.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    30.243.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    30.243.111.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    173.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    173.178.17.96.in-addr.arpa
    IN PTR
    Response
    173.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-173deploystaticakamaitechnologiescom
  • flag-us
    DNS
    173.178.17.96.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    173.178.17.96.in-addr.arpa
    IN PTR
    Response
    173.178.17.96.in-addr.arpa
    IN PTR
    a96-17-178-173deploystaticakamaitechnologiescom
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
  • flag-us
    DNS
    43.58.199.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    43.58.199.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    43.58.199.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    43.58.199.20.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • flag-us
    DNS
    javaslinns.duia.ro
    WScript.exe
    Remote address:
    8.8.8.8:53
    Request
    javaslinns.duia.ro
    IN A
    Response
  • 52.142.223.178:80
    46 B
    1
  • 93.184.221.240:80
    158.1kB
    7.5MB
    3139
    5386
  • 92.123.241.104:80
    138 B
    80 B
    3
    2
  • 92.123.241.104:80
    138 B
    80 B
    3
    2
  • 20.54.110.119:443
  • 88.221.134.18:80
  • 88.221.134.18:80
  • 93.184.221.240:80
  • 93.184.221.240:80
  • 93.184.221.240:80
  • 93.184.221.240:80
  • 88.221.135.211:80
  • 88.221.134.18:80
  • 88.221.134.18:80
  • 52.111.243.30:443
  • 88.221.134.18:80
  • 93.184.221.240:80
  • 93.184.221.240:80
  • 93.184.221.240:80
  • 8.8.8.8:53
    17.160.190.20.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    17.160.190.20.in-addr.arpa

  • 8.8.8.8:53
    2.136.104.51.in-addr.arpa
    dns
    142 B
    157 B
    2
    1

    DNS Request

    2.136.104.51.in-addr.arpa

    DNS Request

    2.136.104.51.in-addr.arpa

  • 8.8.8.8:53
    95.221.229.192.in-addr.arpa
    dns
    73 B
    144 B
    1
    1

    DNS Request

    95.221.229.192.in-addr.arpa

  • 8.8.8.8:53
    9.228.82.20.in-addr.arpa
    dns
    70 B
    156 B
    1
    1

    DNS Request

    9.228.82.20.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    64 B
    120 B
    1
    1

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    3.181.190.20.in-addr.arpa
    dns
    71 B
    157 B
    1
    1

    DNS Request

    3.181.190.20.in-addr.arpa

  • 8.8.8.8:53
    194.178.17.96.in-addr.arpa
    dns
    72 B
    137 B
    1
    1

    DNS Request

    194.178.17.96.in-addr.arpa

  • 8.8.8.8:53
    26.165.165.52.in-addr.arpa
    dns
    72 B
    146 B
    1
    1

    DNS Request

    26.165.165.52.in-addr.arpa

  • 8.8.8.8:53
    18.31.95.13.in-addr.arpa
    dns
    70 B
    144 B
    1
    1

    DNS Request

    18.31.95.13.in-addr.arpa

  • 8.8.8.8:53
    41.110.16.96.in-addr.arpa
    dns
    213 B
    135 B
    3
    1

    DNS Request

    41.110.16.96.in-addr.arpa

    DNS Request

    41.110.16.96.in-addr.arpa

    DNS Request

    41.110.16.96.in-addr.arpa

  • 8.8.8.8:53
    18.134.221.88.in-addr.arpa
    dns
    216 B
    137 B
    3
    1

    DNS Request

    18.134.221.88.in-addr.arpa

    DNS Request

    18.134.221.88.in-addr.arpa

    DNS Request

    18.134.221.88.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    64 B
    120 B
    1
    1

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    208.194.73.20.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    208.194.73.20.in-addr.arpa

  • 8.8.8.8:53
    119.110.54.20.in-addr.arpa
    dns
    144 B
    2

    DNS Request

    119.110.54.20.in-addr.arpa

    DNS Request

    119.110.54.20.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    64 B
    120 B
    1
    1

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    30.243.111.52.in-addr.arpa
    dns
    144 B
    316 B
    2
    2

    DNS Request

    30.243.111.52.in-addr.arpa

    DNS Request

    30.243.111.52.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    173.178.17.96.in-addr.arpa
    dns
    144 B
    274 B
    2
    2

    DNS Request

    173.178.17.96.in-addr.arpa

    DNS Request

    173.178.17.96.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    120 B
    2
    1

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
  • 8.8.8.8:53
    43.58.199.20.in-addr.arpa
    dns
    142 B
    314 B
    2
    2

    DNS Request

    43.58.199.20.in-addr.arpa

    DNS Request

    43.58.199.20.in-addr.arpa

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    120 B
    2
    1

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

  • 8.8.8.8:53
    javaslinns.duia.ro
    dns
    WScript.exe
    128 B
    240 B
    2
    2

    DNS Request

    javaslinns.duia.ro

    DNS Request

    javaslinns.duia.ro

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

    Filesize

    46B

    MD5

    411593a9b1853f19195cf9e6749140e2

    SHA1

    2046ae5a2a28f20c2b6eb9555f80bcb4b226696c

    SHA256

    f7f03f6db617164d162d3a653d2f6933b8eac245623c7a385d50816466f29d96

    SHA512

    30db0ec968fb577a445c3c8b70cc4f815b63db22dea7b1dc0e5f175a4cd274bd945c22ec01b93b537bce166b74e0089b1c4c456a5a7bdd55f7983df565702311

  • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

    Filesize

    46B

    MD5

    f7640fc84ac04591db95112d67a64b50

    SHA1

    a92da1305d995a7dfd52d213858143a374528d40

    SHA256

    aa72606482919aa48b569809de0ec43fdddedc5599adacb439b44fc86b389a93

    SHA512

    4250aaef1b194468d7bfb4b09bf556a749283bcbd4caab0f3c950fa66d2ca2a9493607dd05fffe5e18fc4552dbbddcca512e0e50a22fbfb1a34b25766c0c8de7

  • C:\Users\Admin\AppData\Roaming\eVvEfMYHrV.js

    Filesize

    14KB

    MD5

    7da63b5e09aca81ff9226cb98eb7c07f

    SHA1

    95b8e956af1684adfa7eeb44fbb8703e314ed714

    SHA256

    9591223d96a8fbdef996a889892846b7162aee19904f030080dbf3ca2d966c20

    SHA512

    608af6335c141e95cb8b1f95dae2d47c5cc7c0ba18fbcfca851681ddabfa17be920d5d5b2986b0da69fbaec6e4cd9d3bcadc70b6c63e2f9e31957eff6d347e70

  • C:\Users\Admin\AppData\Roaming\eqvcqytqg.txt

    Filesize

    256KB

    MD5

    5c44e3a8f95993ada30b56238ef4e171

    SHA1

    d9a3453425d9120377a2948c6c4e844d9538d74b

    SHA256

    003368a4b5d2fc695bf41a5832538395aafc57ef1e09fd5aff7cd30e4c00f73b

    SHA512

    7a1e063d6a10e7adfb111fe5f5d78c3d7972224498c3ec3b0ff9370e54cd3e7f1f2cc66af7ad739b5dfc0ca4b6ca7ac4213123992a73c1de9de96c0722a21261

  • C:\Users\Admin\_output.js

    Filesize

    448KB

    MD5

    31b111cf9b1723f32171eebad300bc1f

    SHA1

    e83acce0af6370240f2b3e032123976a5ca1fe16

    SHA256

    c462a086cb961e26e457f44b24120ba725424da30653d986f5bc3587dc3071f2

    SHA512

    424cd8e5f3d28995cd98a46b6e946cbe443e86ee662d041aba6a6422ae413fb044f289331d7ad3b5ed97b14f4366947d2afb21816d95c7d78f1fbf74297000f2

  • memory/4656-63-0x000001C923420000-0x000001C924420000-memory.dmp

    Filesize

    16.0MB

  • memory/4656-65-0x000001C923690000-0x000001C9236A0000-memory.dmp

    Filesize

    64KB

  • memory/4656-30-0x000001C923420000-0x000001C924420000-memory.dmp

    Filesize

    16.0MB

  • memory/4656-37-0x000001C921BF0000-0x000001C921BF1000-memory.dmp

    Filesize

    4KB

  • memory/4656-66-0x000001C9236C0000-0x000001C9236D0000-memory.dmp

    Filesize

    64KB

  • memory/4656-68-0x000001C9236B0000-0x000001C9236C0000-memory.dmp

    Filesize

    64KB

  • memory/4716-44-0x00000218323B0000-0x00000218333B0000-memory.dmp

    Filesize

    16.0MB

  • memory/4716-69-0x0000021832620000-0x0000021832630000-memory.dmp

    Filesize

    64KB

  • memory/4716-60-0x0000021832390000-0x0000021832391000-memory.dmp

    Filesize

    4KB

  • memory/4796-4-0x0000027A00000000-0x0000027A01000000-memory.dmp

    Filesize

    16.0MB

  • memory/4796-14-0x0000027A76EB0000-0x0000027A76EB1000-memory.dmp

    Filesize

    4KB

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