Resubmissions

14-12-2024 07:51

241214-jqcj1sxnhr 10

11-12-2024 15:39

241211-s3498stkar 10

07-12-2024 20:12

241207-yy4qsswqej 10

Analysis

  • max time kernel
    150s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30-11-2024 15:15

General

  • Target

    Archive.zip__ccacaxs2tbz2t6ob3e.exe

  • Size

    430KB

  • MD5

    a3cab1a43ff58b41f61f8ea32319386b

  • SHA1

    94689e1a9e1503f1082b23e6d5984d4587f3b9ec

  • SHA256

    005d3b2b78fa134092a43e53112e5c8518f14cf66e57e6a3cc723219120baba6

  • SHA512

    8f084a866c608833c3bf95b528927d9c05e8d4afcd8a52c3434d45c8ba8220c25d2f09e00aade708bbbc83b4edea60baf826750c529e8e9e05b1242c56d0198d

  • SSDEEP

    6144:vU9Q9tD5WuDQa4t3BMgLkzvCOnYxcEaSAOPou8BWinO8DR:8Q9tD5WyQlBBVAnYxRhr8DR

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Archive.zip__ccacaxs2tbz2t6ob3e.exe
    "C:\Users\Admin\AppData\Local\Temp\Archive.zip__ccacaxs2tbz2t6ob3e.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1916
    • C:\Users\Admin\AppData\Local\Temp\B222.tmp.exe
      C:\Users\Admin\AppData\Local\Temp\B222.tmp.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    0543bbebc9b82a47f1b82d81d21276d5

    SHA1

    ebd0ed270c99f6d9cfb1a8da407590f3402939cd

    SHA256

    a803dc44bb534cb735cbe98bc998725b4e3747ab8a6fe6103bda78a5e254e370

    SHA512

    37e4115a8e2a4e7b30d85165ea57ea46dd6f114ebb7e4be282a148c55ca13601cdf6d409acaa3f8e5a6a8807064a634f29901a781583c5c8e699f8fa23fac0f6

  • C:\Users\Admin\AppData\Local\Temp\B222.tmp.exe

    Filesize

    149KB

    MD5

    060404f288040959694844afbd102966

    SHA1

    e0525e9ef6713fd7f269a669335ce3ddaab4b6a1

    SHA256

    40517e822f3442a2f389a50e905f40a6a2c4930077c865e3ea7b1929405f760a

    SHA512

    ddf8c53e1e1888084fa5422f297cc3ba9d97f7576c36f6b633ce67ca789127f7e259e9fb374fcbced66f883dadde0717d81ecce9776770bf07d8cf3b94b1a43f

  • C:\Users\Admin\AppData\Local\Temp\CabBBB4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarBC24.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b