Analysis

  • max time kernel
    299s
  • max time network
    299s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    19-04-2021 05:24

General

  • Target

    Sirus.exe

  • Size

    1.6MB

  • MD5

    bc56db19b52ed6319e02a3aff17e8ccb

  • SHA1

    ef9cd9d631d5d8f384b22debdf520d6f9b06e1ff

  • SHA256

    a0edc967ba879922c1ed23b608445e025aa7ef48291146c4a963a6d5546c8f6c

  • SHA512

    dc05f4351a00e55db70154d0650a8fdddd63aa5cd8741645ad5b3397bbdc67f10cef521d9a8a2f7a2c64dd80a048a7e0a484982e1bfcdc7c360ba771cbe03017

Malware Config

Extracted

Family

raccoon

Botnet

1a329a10c40d1d7de968ac01620072546be15062

Attributes
  • url4cnc

    https://tttttt.me/jrrand0mer

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sirus.exe
    "C:\Users\Admin\AppData\Local\Temp\Sirus.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3984
    • C:\Users\Admin\AppData\Local\Temp\Sirus.exe
      "{path}"
      2⤵
        PID:1228
      • C:\Users\Admin\AppData\Local\Temp\Sirus.exe
        "{path}"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1192
        • C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe
          "C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:4044
          • C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe
            "{path}"
            4⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:1688

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\GoXN0tfqkP.exe.log
      MD5

      0c2899d7c6746f42d5bbe088c777f94c

      SHA1

      622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

      SHA256

      5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

      SHA512

      ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

    • C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe
      MD5

      6ae21549fb8869f8da1acec258c48e0b

      SHA1

      aed533b121fbbb481e598bc3e73cb90556db55f3

      SHA256

      80fff049a91ba68ca61e228c88dd80d16e416ab54fd66c87c5c5ea2e85d44b58

      SHA512

      abd624fb7181436abe539166e4030a6982f3c572bb341105fb237787e7485c5a9e7a289e58b9e2346f37eeeadcb4f82fb816d2aa3a5b4a97082238279d198136

    • C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe
      MD5

      6ae21549fb8869f8da1acec258c48e0b

      SHA1

      aed533b121fbbb481e598bc3e73cb90556db55f3

      SHA256

      80fff049a91ba68ca61e228c88dd80d16e416ab54fd66c87c5c5ea2e85d44b58

      SHA512

      abd624fb7181436abe539166e4030a6982f3c572bb341105fb237787e7485c5a9e7a289e58b9e2346f37eeeadcb4f82fb816d2aa3a5b4a97082238279d198136

    • C:\Users\Admin\AppData\Local\Temp\GoXN0tfqkP.exe
      MD5

      6ae21549fb8869f8da1acec258c48e0b

      SHA1

      aed533b121fbbb481e598bc3e73cb90556db55f3

      SHA256

      80fff049a91ba68ca61e228c88dd80d16e416ab54fd66c87c5c5ea2e85d44b58

      SHA512

      abd624fb7181436abe539166e4030a6982f3c572bb341105fb237787e7485c5a9e7a289e58b9e2346f37eeeadcb4f82fb816d2aa3a5b4a97082238279d198136

    • \Users\Admin\AppData\LocalLow\gC9tT2iQ3s\freebl3.dll
      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\gC9tT2iQ3s\freebl3.dll
      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\gC9tT2iQ3s\mozglue.dll
      MD5

      eae9273f8cdcf9321c6c37c244773139

      SHA1

      8378e2a2f3635574c106eea8419b5eb00b8489b0

      SHA256

      a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc

      SHA512

      06e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097

    • \Users\Admin\AppData\LocalLow\gC9tT2iQ3s\nss3.dll
      MD5

      02cc7b8ee30056d5912de54f1bdfc219

      SHA1

      a6923da95705fb81e368ae48f93d28522ef552fb

      SHA256

      1989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5

      SHA512

      0d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5

    • \Users\Admin\AppData\LocalLow\gC9tT2iQ3s\softokn3.dll
      MD5

      4e8df049f3459fa94ab6ad387f3561ac

      SHA1

      06ed392bc29ad9d5fc05ee254c2625fd65925114

      SHA256

      25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

      SHA512

      3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

    • \Users\Admin\AppData\LocalLow\sqlite3.dll
      MD5

      f964811b68f9f1487c2b41e1aef576ce

      SHA1

      b423959793f14b1416bc3b7051bed58a1034025f

      SHA256

      83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

      SHA512

      565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

    • memory/1192-125-0x0000000000400000-0x0000000000492000-memory.dmp
      Filesize

      584KB

    • memory/1192-126-0x000000000043DC5B-mapping.dmp
    • memory/1192-127-0x0000000000400000-0x0000000000492000-memory.dmp
      Filesize

      584KB

    • memory/1688-147-0x0000000000400000-0x000000000041C000-memory.dmp
      Filesize

      112KB

    • memory/1688-148-0x000000000041654A-mapping.dmp
    • memory/1688-153-0x00000000056B0000-0x00000000056B1000-memory.dmp
      Filesize

      4KB

    • memory/1688-154-0x0000000005160000-0x0000000005161000-memory.dmp
      Filesize

      4KB

    • memory/1688-155-0x00000000051C0000-0x00000000051C1000-memory.dmp
      Filesize

      4KB

    • memory/1688-156-0x0000000005200000-0x0000000005201000-memory.dmp
      Filesize

      4KB

    • memory/1688-157-0x0000000005470000-0x0000000005471000-memory.dmp
      Filesize

      4KB

    • memory/1688-158-0x00000000050A0000-0x00000000056A6000-memory.dmp
      Filesize

      6.0MB

    • memory/3984-118-0x0000000005120000-0x0000000005121000-memory.dmp
      Filesize

      4KB

    • memory/3984-119-0x00000000050C0000-0x00000000050C1000-memory.dmp
      Filesize

      4KB

    • memory/3984-124-0x0000000009B30000-0x0000000009BF0000-memory.dmp
      Filesize

      768KB

    • memory/3984-120-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
      Filesize

      4KB

    • memory/3984-121-0x00000000055C0000-0x00000000055C5000-memory.dmp
      Filesize

      20KB

    • memory/3984-122-0x0000000008890000-0x0000000008891000-memory.dmp
      Filesize

      4KB

    • memory/3984-114-0x00000000006D0000-0x00000000006D1000-memory.dmp
      Filesize

      4KB

    • memory/3984-117-0x0000000005170000-0x0000000005171000-memory.dmp
      Filesize

      4KB

    • memory/3984-116-0x00000000055D0000-0x00000000055D1000-memory.dmp
      Filesize

      4KB

    • memory/3984-123-0x0000000009E30000-0x0000000009F1A000-memory.dmp
      Filesize

      936KB

    • memory/4044-134-0x0000000000000000-mapping.dmp
    • memory/4044-146-0x000000000F380000-0x000000000F3C2000-memory.dmp
      Filesize

      264KB

    • memory/4044-145-0x0000000004A30000-0x0000000004ABF000-memory.dmp
      Filesize

      572KB

    • memory/4044-144-0x0000000007500000-0x00000000079FE000-memory.dmp
      Filesize

      5.0MB

    • memory/4044-137-0x00000000006D0000-0x00000000006D1000-memory.dmp
      Filesize

      4KB