Resubmissions

29-10-2021 04:47

211029-fephnahcek 10

29-10-2021 04:36

211029-e8cwaahcdp 8

Analysis

  • max time kernel
    109s
  • max time network
    358s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    29-10-2021 04:36

General

  • Target

    run_848a9.exe

  • Size

    1.7MB

  • MD5

    67c86865ba800ab9f761356d4cc5c08c

  • SHA1

    1f3dcc460c3fb02704e69cd8509445a92ac3600d

  • SHA256

    8dbbe3e8657d87e842026b7051a7b0680d3838749773997df91f123034a7566d

  • SHA512

    328c47921cfa939403736e63d0a5f5659dce3a916a44e6d0b0434ae4672bf96530a86cb19c2709a67914381fd8fc1c40b6e12209a35735743a8988a6166b50ff

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\run_848a9.exe
    "C:\Users\Admin\AppData\Local\Temp\run_848a9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3220
    • C:\Users\Admin\AppData\Local\Temp\is-KSM1P.tmp\run_848a9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KSM1P.tmp\run_848a9.tmp" /SL5="$30116,986812,780800,C:\Users\Admin\AppData\Local\Temp\run_848a9.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1320
      • C:\Users\Admin\AppData\Local\Temp\is-1DESN.tmp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\is-1DESN.tmp\setup.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2440
        • C:\Users\Admin\AppData\Local\Temp\is-CCPKB.tmp\setup.tmp
          "C:\Users\Admin\AppData\Local\Temp\is-CCPKB.tmp\setup.tmp" /SL5="$101F8,921114,831488,C:\Users\Admin\AppData\Local\Temp\is-1DESN.tmp\setup.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2860

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-1DESN.tmp\setup.exe
    MD5

    af5770a146da7de3837f95f622c150e5

    SHA1

    83edfc1970dcec10ac1a3fad0281486b8fc23810

    SHA256

    864a35c54d0d9aa563d4e300bd003c83502f45df8736c2f6bbb0edf74870a2e7

    SHA512

    15f40a0d8af86b809768ff6ee87633be59ab06d2db2b6281c30bd2e81a9b10fefb9f9737e9a770e9b084997086c45e6d3d9a2ce70ec29b0b94eab04157a2d936

  • C:\Users\Admin\AppData\Local\Temp\is-1DESN.tmp\setup.exe
    MD5

    af5770a146da7de3837f95f622c150e5

    SHA1

    83edfc1970dcec10ac1a3fad0281486b8fc23810

    SHA256

    864a35c54d0d9aa563d4e300bd003c83502f45df8736c2f6bbb0edf74870a2e7

    SHA512

    15f40a0d8af86b809768ff6ee87633be59ab06d2db2b6281c30bd2e81a9b10fefb9f9737e9a770e9b084997086c45e6d3d9a2ce70ec29b0b94eab04157a2d936

  • C:\Users\Admin\AppData\Local\Temp\is-CCPKB.tmp\setup.tmp
    MD5

    38e9177040663abdf7cb42d237b03d9d

    SHA1

    0b95b3694406d9d86aa3e4953f42d471977ff03d

    SHA256

    2a322dbda4ac86aed04ab99f9f2c277c2f84b6046e234c3ae55ceec53883b594

    SHA512

    78db4c72b2e10d665775e7f306d926060c95ba47610e809e0a21006280f9f0280fa572168b9c9ee00e2121090db9a20dc524677d961fea4292c41c44ba3cb30f

  • C:\Users\Admin\AppData\Local\Temp\is-KSM1P.tmp\run_848a9.tmp
    MD5

    172be78472394107d27ae2337ad8bf58

    SHA1

    530b852a568698a51fb11e137f8c5da54c21a29c

    SHA256

    b45d8b87c446af32aaead1b658bb10b22ba951cba63d432f665cd8c0150a576b

    SHA512

    903f4f3846627e03593163e89c2cd06c43a76cccbadd7eb345fd851433d290cc95737255f12d961106b43bc0a3012ea577fca0246dd7ead4665786654f122a22

  • C:\Users\Admin\AppData\Local\Temp\is-KSM1P.tmp\run_848a9.tmp
    MD5

    172be78472394107d27ae2337ad8bf58

    SHA1

    530b852a568698a51fb11e137f8c5da54c21a29c

    SHA256

    b45d8b87c446af32aaead1b658bb10b22ba951cba63d432f665cd8c0150a576b

    SHA512

    903f4f3846627e03593163e89c2cd06c43a76cccbadd7eb345fd851433d290cc95737255f12d961106b43bc0a3012ea577fca0246dd7ead4665786654f122a22

  • \Users\Admin\AppData\Local\Temp\is-EQPOQ.tmp\idp.dll
    MD5

    55c310c0319260d798757557ab3bf636

    SHA1

    0892eb7ed31d8bb20a56c6835990749011a2d8de

    SHA256

    54e7e0ad32a22b775131a6288f083ed3286a9a436941377fc20f85dd9ad983ed

    SHA512

    e0082109737097658677d7963cbf28d412dca3fa8f5812c2567e53849336ce45ebae2c0430df74bfe16c0f3eebb46961bc1a10f32ca7947692a900162128ae57

  • memory/1320-120-0x0000000000810000-0x0000000000811000-memory.dmp
    Filesize

    4KB

  • memory/1320-118-0x0000000000000000-mapping.dmp
  • memory/2440-122-0x0000000000000000-mapping.dmp
  • memory/2440-130-0x0000000000400000-0x00000000004D8000-memory.dmp
    Filesize

    864KB

  • memory/2860-127-0x0000000000000000-mapping.dmp
  • memory/2860-131-0x00000000008A0000-0x00000000008A1000-memory.dmp
    Filesize

    4KB

  • memory/3220-117-0x0000000000400000-0x00000000004CC000-memory.dmp
    Filesize

    816KB