Resubmissions

28-09-2023 14:40

230928-r1yh8scb2t 10

28-09-2023 14:23

230928-rqhp2adc95 8

Analysis

  • max time kernel
    305s
  • max time network
    290s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2023 14:23

General

  • Target

    install-tool.exe

  • Size

    300.3MB

  • MD5

    8457f42f2b8a1f46daea28e16a235b61

  • SHA1

    0b52c51bf6dac23155ec45e7d83119ff313f318d

  • SHA256

    8f536b3f85b999cf0a899de83523c8fea56647e6be6880fbbc7856e1cb802902

  • SHA512

    f33d6dd31c6896c32cd386ca5fc5ed5d931aae76dcd04648ea6e941851ac6bcb63fdfcd42b975702c35471ef53cd8cf6ee7c285e09e96152516c4096e7498db3

  • SSDEEP

    49152:TzZa6Jr7GhXX7KbAC0yz+444444444444444444444444444444444444444444z:Te

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\install-tool.exe
    "C:\Users\Admin\AppData\Local\Temp\install-tool.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe
      "C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2772
      • C:\Users\Admin\AppData\Local\Temp\is-F9043.tmp\ebook-dist-x64.tmp
        "C:\Users\Admin\AppData\Local\Temp\is-F9043.tmp\ebook-dist-x64.tmp" /SL5="$90228,31984858,231424,C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe"
        3⤵
        • Executes dropped EXE
        PID:4348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bew2kdak.eah.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe

    Filesize

    31.1MB

    MD5

    d981b636517520e988bdf81f029ff5b3

    SHA1

    1110ada7f4bc30860f74f2831a5e5efec29d5dfa

    SHA256

    c776113e56723033824999fcbc2c9478fde4c47301ab2f1741844170a797c364

    SHA512

    1a2164ef6aeaba79fd1492e528e5ea1770a2de6e69af7aed18ce9f9f0a42856cab4b1879bf16313fce632f00cfee645912dc56c46d848e77cc024952b3da8066

  • C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe

    Filesize

    31.1MB

    MD5

    d981b636517520e988bdf81f029ff5b3

    SHA1

    1110ada7f4bc30860f74f2831a5e5efec29d5dfa

    SHA256

    c776113e56723033824999fcbc2c9478fde4c47301ab2f1741844170a797c364

    SHA512

    1a2164ef6aeaba79fd1492e528e5ea1770a2de6e69af7aed18ce9f9f0a42856cab4b1879bf16313fce632f00cfee645912dc56c46d848e77cc024952b3da8066

  • C:\Users\Admin\AppData\Local\Temp\ebook-dist-x64.exe

    Filesize

    31.1MB

    MD5

    d981b636517520e988bdf81f029ff5b3

    SHA1

    1110ada7f4bc30860f74f2831a5e5efec29d5dfa

    SHA256

    c776113e56723033824999fcbc2c9478fde4c47301ab2f1741844170a797c364

    SHA512

    1a2164ef6aeaba79fd1492e528e5ea1770a2de6e69af7aed18ce9f9f0a42856cab4b1879bf16313fce632f00cfee645912dc56c46d848e77cc024952b3da8066

  • C:\Users\Admin\AppData\Local\Temp\is-F9043.tmp\ebook-dist-x64.tmp

    Filesize

    1.2MB

    MD5

    e31050ceefad4c7ec2918e4a0097cbe9

    SHA1

    a62e163a9e1dcaec82a00401ac03e893facbd767

    SHA256

    36d4a12f3fcd9468a87c44f9483af3d372f690942a9a39ec8347b31f659b768e

    SHA512

    02daac35cb090a98021c58f80479f2e6f3083bf3c89f84e32329f9f96656b3194ddb17ac462aae5664d61590952ce060d63fb63dbaf15ffd4740e1ad4a2cde24

  • memory/2772-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2772-35-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4348-33-0x00000000022E0000-0x00000000022E1000-memory.dmp

    Filesize

    4KB

  • memory/4348-36-0x0000000000400000-0x0000000000548000-memory.dmp

    Filesize

    1.3MB

  • memory/4348-37-0x00000000022E0000-0x00000000022E1000-memory.dmp

    Filesize

    4KB

  • memory/5076-13-0x00007FFA333E0000-0x00007FFA33EA1000-memory.dmp

    Filesize

    10.8MB

  • memory/5076-14-0x000000002F590000-0x000000002F5A0000-memory.dmp

    Filesize

    64KB

  • memory/5076-12-0x000000002F500000-0x000000002F522000-memory.dmp

    Filesize

    136KB

  • memory/5076-11-0x000000002F590000-0x000000002F5A0000-memory.dmp

    Filesize

    64KB

  • memory/5076-25-0x0000000032130000-0x00000000321D6000-memory.dmp

    Filesize

    664KB

  • memory/5076-1-0x0000000000E40000-0x0000000001E40000-memory.dmp

    Filesize

    16.0MB

  • memory/5076-0-0x00007FFA333E0000-0x00007FFA33EA1000-memory.dmp

    Filesize

    10.8MB