Resubmissions

22-09-2023 16:16

230922-tqtteabb38 7

11-04-2023 19:36

230411-ya81lsgd6x 10

11-04-2023 19:28

230411-x6tp5aeg65 7

Analysis

  • max time kernel
    142s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    11-04-2023 19:28

General

  • Target

    krisp-1.21.1-installer_pQow-O1.exe

  • Size

    1.7MB

  • MD5

    02aca2415c558b9d62d6d2c61f568f5d

  • SHA1

    d2bb3e72371aee2d458bd2f147e56a9279e491e3

  • SHA256

    d7d9d426d72d2a994839ecba5e9a08a246c0b23d7a894804f070bd18ce513e65

  • SHA512

    5095f28f21a7b409d1ffb0a8e47ea741876c26436873d5ae3bb46ba6506b5f2baa866c0b3a8be61353ac3a472fe1d67bd93246509dd0c38040a0ab0ee6d7ce09

  • SSDEEP

    24576:+7FUDowAyrTVE3U5FmxNfKzSYJMPaJPfrT90eKc4cgFLNPfs8duMpmsD:+BuZrEUeKzkwPH9RHgFLRdp/

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies system certificate store 2 TTPs 13 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\krisp-1.21.1-installer_pQow-O1.exe
    "C:\Users\Admin\AppData\Local\Temp\krisp-1.21.1-installer_pQow-O1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:928
    • C:\Users\Admin\AppData\Local\Temp\is-G0FKR.tmp\krisp-1.21.1-installer_pQow-O1.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-G0FKR.tmp\krisp-1.21.1-installer_pQow-O1.tmp" /SL5="$70126,875199,832512,C:\Users\Admin\AppData\Local\Temp\krisp-1.21.1-installer_pQow-O1.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious behavior: GetForegroundWindowSpam
      PID:924

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

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

    Filesize

    342B

    MD5

    f366115d650d1f0bc3cdeb43163032e2

    SHA1

    99a74be2c24280469f5560dca1f5b9ece8dc1f44

    SHA256

    ab6d4e37a131894ec0e4b991803aa3ecc2b0352d5b88de11df7698510713a8a1

    SHA512

    747ebadec6d461c7fe4dd5bfefdfb0016ac767ea71792c084d286d1fceb2c7946fe26721d2b883cb958ae8c39148298de85bebe8d0043ab3e4b2a70e9a32177d

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

    Filesize

    342B

    MD5

    a1231cbba93d906da72849c9c251f8a6

    SHA1

    527f965284d33da7988de498866e0fa7301e8c6d

    SHA256

    68594a262c9cca07898a650ed4f4b91655dc55f7b84044565949f37a30cf4096

    SHA512

    2b9d6b65a0eff1a54c2ebdcc274b9352cdee9a9bb89bf1124883ec98436825e437016adfd18ad2de1cbd9b116baf1dc3a972c5dcdf187f708b377c834fc00702

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

    Filesize

    342B

    MD5

    146022598e6141dc95a579ec440a9bc0

    SHA1

    bb669da455904d1398bd9804c00e8b8f4a57e50b

    SHA256

    1f696e0069e9081797bdf93ecf4c8d04c23ff944a56c90ecddaaeb584741e51e

    SHA512

    7bdc4cf9a94779ca8db813ba7175603611359e7b763c292630897652353699b59eb1fd432120fc522dc6edb688f4dedf2b98865632aaf05c1a5f99724e0f000c

  • C:\Users\Admin\AppData\Local\Temp\Tar35D8.tmp

    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

  • C:\Users\Admin\AppData\Local\Temp\is-G0FKR.tmp\krisp-1.21.1-installer_pQow-O1.tmp

    Filesize

    3.0MB

    MD5

    a13e891e7f1734de75ec6d3645b5604d

    SHA1

    3f39e07f548f9f056ba55f69cbc90bb75d0c0a05

    SHA256

    cbc9575ca8ebfbeaaf95bd21b2ac54956c460e975c4c9d71fee791accdedd94e

    SHA512

    2f74400c821d4f0f2d6386d05bfbb01da9abcd3a341a630c82a35ea976fea26ad62f1b83f27db760fd42dac1fae5dbaf2371b9e61c30e18a2e39f443b1cafdb1

  • C:\Users\Admin\AppData\Local\Temp\is-QSTA1.tmp\mainlogo.jpg

    Filesize

    1KB

    MD5

    44ee5d39261b2dee433f25bd94636541

    SHA1

    5dd8ff8f152302f547afed43566f87b8485b7608

    SHA256

    4c33464206422caedd89aec841eba5bd97cdb09681a6fb71982c4a8cdda6468e

    SHA512

    00bb24405d8932fec67c66fb7feca5f79e7c22a1488682cafa582d252aabac4872c3dbc4b222dae5c95b9e062ef20910ea52bffb1c511b56cbc421f1f35d1b79

  • \Users\Admin\AppData\Local\Temp\is-G0FKR.tmp\krisp-1.21.1-installer_pQow-O1.tmp

    Filesize

    3.0MB

    MD5

    a13e891e7f1734de75ec6d3645b5604d

    SHA1

    3f39e07f548f9f056ba55f69cbc90bb75d0c0a05

    SHA256

    cbc9575ca8ebfbeaaf95bd21b2ac54956c460e975c4c9d71fee791accdedd94e

    SHA512

    2f74400c821d4f0f2d6386d05bfbb01da9abcd3a341a630c82a35ea976fea26ad62f1b83f27db760fd42dac1fae5dbaf2371b9e61c30e18a2e39f443b1cafdb1

  • \Users\Admin\AppData\Local\Temp\is-QSTA1.tmp\botva2.dll

    Filesize

    37KB

    MD5

    67965a5957a61867d661f05ae1f4773e

    SHA1

    f14c0a4f154dc685bb7c65b2d804a02a0fb2360d

    SHA256

    450b9b0ba25bf068afbc2b23d252585a19e282939bf38326384ea9112dfd0105

    SHA512

    c6942818b9026dc5db2d62999d32cf99fe7289f79a28b8345af17acf9d13b2229a5e917a48ff1f6d59715bdbcb00c1625e0302abcfe10ca7e0475762e0a3f41b

  • memory/924-187-0x0000000000400000-0x000000000071B000-memory.dmp

    Filesize

    3.1MB

  • memory/924-264-0x0000000003720000-0x000000000372F000-memory.dmp

    Filesize

    60KB

  • memory/924-61-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/924-270-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/924-272-0x0000000000400000-0x000000000071B000-memory.dmp

    Filesize

    3.1MB

  • memory/924-273-0x0000000003720000-0x000000000372F000-memory.dmp

    Filesize

    60KB

  • memory/928-54-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB

  • memory/928-101-0x0000000000400000-0x00000000004D8000-memory.dmp

    Filesize

    864KB