Analysis

  • max time kernel
    45s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-12-2020 12:26

General

  • Target

    f95499c80559ccac5978dd8f9fc92f58.exe

  • Size

    30KB

  • MD5

    f95499c80559ccac5978dd8f9fc92f58

  • SHA1

    ff3c434bd32f2e61825f2b67a5f6cbde895308ef

  • SHA256

    ada3714cc9e7f34831ddfff655f7a8d0c0a959d686b06fa347bf659f4e719ed7

  • SHA512

    91d9c7bbf4752c5a9e303317b0c238fbe0916e9bc0b6b4b313e020e16f53ff6393f20cade3441a64be8ae91194a45e8a04c17632074db723600aa6f65c9fe089

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Windows security bypass 2 TTPs
  • 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.

  • Windows security modification 2 TTPs 8 IoCs
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe
    "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
    1⤵
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 4.827
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4.827
        3⤵
        • Delays execution with timeout.exe
        PID:1712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:268
    • C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe
      "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
      2⤵
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
        3⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:1764
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          4⤵
          • Delays execution with timeout.exe
          PID:904

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

4
T1112

Disabling Security Tools

3
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

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/268-11-0x0000000004940000-0x0000000004941000-memory.dmp
    Filesize

    4KB

  • memory/268-47-0x00000000062C0000-0x00000000062C1000-memory.dmp
    Filesize

    4KB

  • memory/268-13-0x0000000005240000-0x0000000005241000-memory.dmp
    Filesize

    4KB

  • memory/268-16-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB

  • memory/268-21-0x0000000005670000-0x0000000005671000-memory.dmp
    Filesize

    4KB

  • memory/268-22-0x0000000006230000-0x0000000006231000-memory.dmp
    Filesize

    4KB

  • memory/268-29-0x00000000057E0000-0x00000000057E1000-memory.dmp
    Filesize

    4KB

  • memory/268-8-0x0000000000000000-mapping.dmp
  • memory/268-9-0x00000000746F0000-0x0000000074DDE000-memory.dmp
    Filesize

    6.9MB

  • memory/268-10-0x0000000000900000-0x0000000000901000-memory.dmp
    Filesize

    4KB

  • memory/268-33-0x00000000055D0000-0x00000000055D1000-memory.dmp
    Filesize

    4KB

  • memory/268-12-0x0000000002510000-0x0000000002511000-memory.dmp
    Filesize

    4KB

  • memory/268-48-0x00000000062D0000-0x00000000062D1000-memory.dmp
    Filesize

    4KB

  • memory/564-50-0x000007FEF6380000-0x000007FEF65FA000-memory.dmp
    Filesize

    2.5MB

  • memory/648-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp
    Filesize

    6.9MB

  • memory/648-7-0x0000000008360000-0x0000000008402000-memory.dmp
    Filesize

    648KB

  • memory/648-3-0x0000000000120000-0x0000000000121000-memory.dmp
    Filesize

    4KB

  • memory/904-59-0x0000000000000000-mapping.dmp
  • memory/1712-6-0x0000000000000000-mapping.dmp
  • memory/1764-58-0x0000000000000000-mapping.dmp
  • memory/1836-32-0x0000000000400000-0x0000000000494000-memory.dmp
    Filesize

    592KB

  • memory/1836-30-0x0000000000400000-0x0000000000494000-memory.dmp
    Filesize

    592KB

  • memory/1836-31-0x000000000043FA56-mapping.dmp
  • memory/1928-5-0x0000000000000000-mapping.dmp