Analysis

  • max time kernel
    41s
  • max time network
    40s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-11-2020 11:21

General

  • Target

    1fff7f97c574c2e6a6d9e66389f8a10534f9992b0fc8b9658453e72f5360e65f.exe

  • Size

    512KB

  • MD5

    622a5a45bb1ca80c65ac9ba3f10ef053

  • SHA1

    ffcd13da1172e045dce44e8899c74868461cf302

  • SHA256

    1fff7f97c574c2e6a6d9e66389f8a10534f9992b0fc8b9658453e72f5360e65f

  • SHA512

    8ad9e1f646d026e028e9c6947dc8c5ec4102ceb041b14471e594f6f880939e29632cd3f3ce1cb05b5328fd26d9e215c1cfc6f0de18c21f7f7996c26033a0cd94

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 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.

  • JavaScript code in executable 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fff7f97c574c2e6a6d9e66389f8a10534f9992b0fc8b9658453e72f5360e65f.exe
    "C:\Users\Admin\AppData\Local\Temp\1fff7f97c574c2e6a6d9e66389f8a10534f9992b0fc8b9658453e72f5360e65f.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\1fff7f97c574c2e6a6d9e66389f8a10534f9992b0fc8b9658453e72f5360e65f.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1012
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:1156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll

    MD5

    60acd24430204ad2dc7f148b8cfe9bdc

    SHA1

    989f377b9117d7cb21cbe92a4117f88f9c7693d9

    SHA256

    9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

    SHA512

    626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll

    MD5

    60acd24430204ad2dc7f148b8cfe9bdc

    SHA1

    989f377b9117d7cb21cbe92a4117f88f9c7693d9

    SHA256

    9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

    SHA512

    626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\mozglue.dll

    MD5

    eae9273f8cdcf9321c6c37c244773139

    SHA1

    8378e2a2f3635574c106eea8419b5eb00b8489b0

    SHA256

    a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc

    SHA512

    06e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\msvcp140.dll

    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\nss3.dll

    MD5

    02cc7b8ee30056d5912de54f1bdfc219

    SHA1

    a6923da95705fb81e368ae48f93d28522ef552fb

    SHA256

    1989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5

    SHA512

    0d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\softokn3.dll

    MD5

    4e8df049f3459fa94ab6ad387f3561ac

    SHA1

    06ed392bc29ad9d5fc05ee254c2625fd65925114

    SHA256

    25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

    SHA512

    3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

  • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\vcruntime140.dll

    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

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

    MD5

    f964811b68f9f1487c2b41e1aef576ce

    SHA1

    b423959793f14b1416bc3b7051bed58a1034025f

    SHA256

    83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

    SHA512

    565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

  • memory/1012-11-0x0000000000000000-mapping.dmp

  • memory/1076-3-0x000007FEF7B20000-0x000007FEF7D9A000-memory.dmp

    Filesize

    2.5MB

  • memory/1156-12-0x0000000000000000-mapping.dmp

  • memory/1992-0-0x00000000023BA000-0x00000000023CB000-memory.dmp

    Filesize

    68KB

  • memory/1992-1-0x00000000024B0000-0x00000000024C1000-memory.dmp

    Filesize

    68KB