Analysis

  • max time kernel
    300s
  • max time network
    296s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    10-12-2020 14:37

General

  • Target

    3f6e996ee4a40d2d19b648669d9146562627359626239324937a5c75f8030824.exe

  • Size

    425KB

  • MD5

    8e2ccd9284e09ccc4e9eef325a83b435

  • SHA1

    7710f609e7623a08f0dd7cb8fae1ff38d0c729ef

  • SHA256

    3f6e996ee4a40d2d19b648669d9146562627359626239324937a5c75f8030824

  • SHA512

    9827bdb32c04127ee0ccc41be9c84df40e7d2aa30c68dc9f9e5bfabcd920478884bbec0f3f8ddcbe5fba2eafafa3437b37af161d59fc39daa92202e2f884247f

Score
8/10

Malware Config

Signatures

  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 27 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 2 IoCs
  • Modifies Control Panel 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 4 IoCs
  • Modifies registry class 354 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f6e996ee4a40d2d19b648669d9146562627359626239324937a5c75f8030824.exe
    "C:\Users\Admin\AppData\Local\Temp\3f6e996ee4a40d2d19b648669d9146562627359626239324937a5c75f8030824.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    PID:492
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3004
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:808
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:896
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3628
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:1232
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:4300
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:4364
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4552
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4616
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:4828
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:4960

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\DataStore\Data\nouser1\120712-0049\DBStore\LogFiles\edb.log

    MD5

    ac3aee9240401d73ec13dae3a32897e7

    SHA1

    314ad904df25943f0526cce91f0342e9cb7ac15f

    SHA256

    5ef8f6f25b6cffc17d738f5af85359bab20dccd56f63862333b57f479a4eb7b4

    SHA512

    30dc8d49096d3c0d2c330b2fb168bd649803f07133a38324b0745de39e4cb5f2a081d5667d931b82513a431aad96f6586bbbce5993e65157caa35fc7f78f2220

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\DataStore\Data\nouser1\120712-0049\DBStore\edb.chk

    MD5

    c83fb3262e8a0d3d070c4254ae15acfe

    SHA1

    b9f8df4d5adc30466e5cc0161f2f0ac178b8506e

    SHA256

    59ccb316cc8327ec219da11099a5ccd1410346db538576ecbb1a613954dd1b37

    SHA512

    6beeaf279ff77740acb3e035cdd5a9e65639d3f211c054979ab1734ab1929883e4d8f6cec391cf4b9ca94d378c516e234aa97c21bc2ccdce041dbf5549658f49

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\DataStore\Data\nouser1\120712-0049\DBStore\spartan.edb

    MD5

    160cf1509cbecf98083bb1baf6eab040

    SHA1

    cf66bb4142f01ff07ff0f759da162b57f93d4ca7

    SHA256

    d127e6e8559af9f1786ea32b5f7fba80ae05817bc80f98d336143685b96b6336

    SHA512

    8ad2a9124fa10738ba1419ad6ed380b4d21f182c9fb0bf24dd4a55f71d8c8eeb353e0a4d95cc12a1d9b1050ca4824fe0cc97499073ebd982d1ef1e28f91fe4e6

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\DataStore\Data\nouser1\120712-0049\DBStore\spartan.jfm

    MD5

    704f39853af13f78e6d6ae476bd805c1

    SHA1

    02b839e77c88cb52466bc92cc9b9831a1b948346

    SHA256

    06b6812edef3fac969a3f117b5ea441ae9131fcd85d21e7bd8e499bd43d2d78c

    SHA512

    48d853f9dc42f2c805cef5d75ba6f280818fd9db801c29d9b761a76300d0f797042b01b179794cb1a852fc7cdb2e72859c2f27869a48d7a673e0b44e10bb1ad1

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\Recovery\Active\RecoveryStore.{AD74076C-9919-4A59-8013-556D901A0C55}.dat

    MD5

    92b77f605f1f6d20e5968c3598a4ed27

    SHA1

    a825a5c0936004944abd8571c5f64809e255c7bc

    SHA256

    3d010d2ef64cc669f1250be67302f805b913cf0f4af0e5af584652adfb5cffe3

    SHA512

    80f514b9cafe0f37f3a2326f582722bc6b8199efa1a5a25c10f72d38c938178d64e7cabc50077e052d9e504e175b9157d7abc0c6766076fc7b3ebddc41910a46

  • C:\Users\Admin\AppData\Local\Packages\microsoft.microsoftedge_8wekyb3d8bbwe\AC\MicrosoftEdge\User\Default\Recovery\Active\{63E15095-7D97-42BC-AE5E-5CB10E40AB20}.dat

    MD5

    eb29c991af09dfa7d98c9f7b12459560

    SHA1

    726c68f7d4238920873e30d5f57f7c550bfc94cf

    SHA256

    1e38f91e34e219564723b85227057ee4e94fd533bad5a024adbf5e8698c9a301

    SHA512

    79e08cd49300ce0e7c1948b5b3fb8ecb092772013e49eb42b43fd9da95e571d3cf8ac6adc33117f7829699d95245e01975a1182afcaba81560f3044c55abb650

  • C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CRLs\YOUR_FILES_ARE_ENCRYPTED.HTML

    MD5

    a7399c28a49b723780edd82de862171a

    SHA1

    f047f0f71579e04a242d35cebb885f65864913bf

    SHA256

    95844858be75594d92a0bfac364f51fd2c05b4eb24dc861828e33af5b146dc0a

    SHA512

    6116eb44ccfca5270a25497e8af79c8fe46f2b39456f2a7e69c91bfe4858437c9687dfc6fe0515a920cb69a7752d2a39dec32010bd32d4c4a9fab54042a3bac0

  • C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\CTLs\YOUR_FILES_ARE_ENCRYPTED.HTML

    MD5

    a7399c28a49b723780edd82de862171a

    SHA1

    f047f0f71579e04a242d35cebb885f65864913bf

    SHA256

    95844858be75594d92a0bfac364f51fd2c05b4eb24dc861828e33af5b146dc0a

    SHA512

    6116eb44ccfca5270a25497e8af79c8fe46f2b39456f2a7e69c91bfe4858437c9687dfc6fe0515a920cb69a7752d2a39dec32010bd32d4c4a9fab54042a3bac0

  • C:\Users\Admin\AppData\Roaming\Microsoft\SystemCertificates\My\Certificates\YOUR_FILES_ARE_ENCRYPTED.HTML

    MD5

    a7399c28a49b723780edd82de862171a

    SHA1

    f047f0f71579e04a242d35cebb885f65864913bf

    SHA256

    95844858be75594d92a0bfac364f51fd2c05b4eb24dc861828e33af5b146dc0a

    SHA512

    6116eb44ccfca5270a25497e8af79c8fe46f2b39456f2a7e69c91bfe4858437c9687dfc6fe0515a920cb69a7752d2a39dec32010bd32d4c4a9fab54042a3bac0

  • C:\Users\Admin\Desktop\YOUR_FILES_ARE_ENCRYPTED.HTML

    MD5

    a7399c28a49b723780edd82de862171a

    SHA1

    f047f0f71579e04a242d35cebb885f65864913bf

    SHA256

    95844858be75594d92a0bfac364f51fd2c05b4eb24dc861828e33af5b146dc0a

    SHA512

    6116eb44ccfca5270a25497e8af79c8fe46f2b39456f2a7e69c91bfe4858437c9687dfc6fe0515a920cb69a7752d2a39dec32010bd32d4c4a9fab54042a3bac0