Analysis

  • max time kernel
    138s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2022 07:13

General

  • Target

    document_157_invoice#PDF.msi

  • Size

    660KB

  • MD5

    c00b5441e87185716ce13e82dafabbf7

  • SHA1

    40bdbd060266d60a325f1d83cad95ff8d0608af9

  • SHA256

    979c1e609c8fb00a69412d69c50a8456fa9e9658ed1f8d538301a3d6e0ced032

  • SHA512

    6e49a1452702a4f90fc6d431d2baabf0a41c7bc5caaffcdb5b799bbe157c13352c2a258647a53318407549b1eaa5d40a6a64f8886979911ae58a062a3e0d92b0

  • SSDEEP

    12288:xwHL0D7HkCPumy9chfA+tL5O//Y777777LwmqLpSLF3u:uHL03/zyt+B5OXDV2F3u

Malware Config

Extracted

Family

icedid

Campaign

764376559

C2

saintrefunda.com

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Blocklisted process makes network request 2 IoCs
  • Loads dropped DLL 6 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Windows directory 15 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\document_157_invoice#PDF.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1504
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding 86519195F1F5A3569FDC17522405DBC4
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:604
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Windows\Installer\MSI1BAC.tmp",zzzzInvokeManagedCustomActionOutOfProc SfxCA_7150805 1 test.cs!Test.CustomActions.MyAction
        3⤵
        • Loads dropped DLL
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\System32\rundll32.exe
          "C:\Windows\System32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\tmp4423.dll",init
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:860
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:800
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "000000000000049C" "0000000000000570"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:1532

Network

MITRE ATT&CK Matrix ATT&CK v6

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4423.dll
    Filesize

    209KB

    MD5

    5cb757d0aed9740075cbd4e381f5432a

    SHA1

    5134ea14539d68615e82e8cab6fecee521068d1e

    SHA256

    d2061db77dd5377d5e9006ef166196ef1b6604f670d9f695a6c4f265fda9d2b6

    SHA512

    695d1613ac3d68e8ee9802ea1869af9592223272c4167422cb527b1ee3ad0e92a5cfa87609146e49210cfb1195d843f32c9506e13c355e7a71eb59e1ec38e40e

  • C:\Windows\Installer\MSI1BAC.tmp
    Filesize

    413KB

    MD5

    73f4256925d931f7e18e045b5c94fa8e

    SHA1

    b50352241abc5fb8f79b305fa18b7da5f8992868

    SHA256

    b58f861ba94c6d118c0f28d9494fe0233657e1150595ad9d220beb92af6f4cc8

    SHA512

    8120a439d7882f7d4ee49d3b81667b21a09ef2b345f4025f48426d90b103d55c9b9bc64258a98417d8e86f5984ceffb316557e46e8927a05c814d296a9560496

  • \??\PIPE\samr
    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • \Users\Admin\AppData\Local\Temp\tmp4423.dll
    Filesize

    209KB

    MD5

    5cb757d0aed9740075cbd4e381f5432a

    SHA1

    5134ea14539d68615e82e8cab6fecee521068d1e

    SHA256

    d2061db77dd5377d5e9006ef166196ef1b6604f670d9f695a6c4f265fda9d2b6

    SHA512

    695d1613ac3d68e8ee9802ea1869af9592223272c4167422cb527b1ee3ad0e92a5cfa87609146e49210cfb1195d843f32c9506e13c355e7a71eb59e1ec38e40e

  • \Users\Admin\AppData\Local\Temp\tmp4423.dll
    Filesize

    209KB

    MD5

    5cb757d0aed9740075cbd4e381f5432a

    SHA1

    5134ea14539d68615e82e8cab6fecee521068d1e

    SHA256

    d2061db77dd5377d5e9006ef166196ef1b6604f670d9f695a6c4f265fda9d2b6

    SHA512

    695d1613ac3d68e8ee9802ea1869af9592223272c4167422cb527b1ee3ad0e92a5cfa87609146e49210cfb1195d843f32c9506e13c355e7a71eb59e1ec38e40e

  • \Users\Admin\AppData\Local\Temp\tmp4423.dll
    Filesize

    209KB

    MD5

    5cb757d0aed9740075cbd4e381f5432a

    SHA1

    5134ea14539d68615e82e8cab6fecee521068d1e

    SHA256

    d2061db77dd5377d5e9006ef166196ef1b6604f670d9f695a6c4f265fda9d2b6

    SHA512

    695d1613ac3d68e8ee9802ea1869af9592223272c4167422cb527b1ee3ad0e92a5cfa87609146e49210cfb1195d843f32c9506e13c355e7a71eb59e1ec38e40e

  • \Users\Admin\AppData\Local\Temp\tmp4423.dll
    Filesize

    209KB

    MD5

    5cb757d0aed9740075cbd4e381f5432a

    SHA1

    5134ea14539d68615e82e8cab6fecee521068d1e

    SHA256

    d2061db77dd5377d5e9006ef166196ef1b6604f670d9f695a6c4f265fda9d2b6

    SHA512

    695d1613ac3d68e8ee9802ea1869af9592223272c4167422cb527b1ee3ad0e92a5cfa87609146e49210cfb1195d843f32c9506e13c355e7a71eb59e1ec38e40e

  • \Windows\Installer\MSI1BAC.tmp
    Filesize

    413KB

    MD5

    73f4256925d931f7e18e045b5c94fa8e

    SHA1

    b50352241abc5fb8f79b305fa18b7da5f8992868

    SHA256

    b58f861ba94c6d118c0f28d9494fe0233657e1150595ad9d220beb92af6f4cc8

    SHA512

    8120a439d7882f7d4ee49d3b81667b21a09ef2b345f4025f48426d90b103d55c9b9bc64258a98417d8e86f5984ceffb316557e46e8927a05c814d296a9560496

  • \Windows\Installer\MSI1BAC.tmp
    Filesize

    413KB

    MD5

    73f4256925d931f7e18e045b5c94fa8e

    SHA1

    b50352241abc5fb8f79b305fa18b7da5f8992868

    SHA256

    b58f861ba94c6d118c0f28d9494fe0233657e1150595ad9d220beb92af6f4cc8

    SHA512

    8120a439d7882f7d4ee49d3b81667b21a09ef2b345f4025f48426d90b103d55c9b9bc64258a98417d8e86f5984ceffb316557e46e8927a05c814d296a9560496

  • memory/604-57-0x0000000000000000-mapping.dmp
  • memory/860-67-0x0000000000000000-mapping.dmp
  • memory/860-73-0x0000000180000000-0x0000000180009000-memory.dmp
    Filesize

    36KB

  • memory/1504-54-0x000007FEFC141000-0x000007FEFC143000-memory.dmp
    Filesize

    8KB

  • memory/1640-64-0x0000000001BF0000-0x0000000001BFA000-memory.dmp
    Filesize

    40KB

  • memory/1640-65-0x00000000020A0000-0x0000000002110000-memory.dmp
    Filesize

    448KB

  • memory/1640-63-0x0000000000200000-0x000000000022E000-memory.dmp
    Filesize

    184KB

  • memory/1640-61-0x0000000000000000-mapping.dmp