Resubmissions

03-08-2023 07:52

230803-jqkwdsca99 10

27-07-2023 11:24

230727-nhyvhaec35 10

26-12-2022 13:39

221226-qx588sgb9y 10

26-12-2022 13:39

221226-qx1zhsgb9x 10

26-12-2022 13:38

221226-qxxbbsda57 10

26-12-2022 13:38

221226-qxjp8sda56 10

Analysis

  • max time kernel
    1800s
  • max time network
    1803s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    27-07-2023 11:24

General

  • Target

    b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll

  • Size

    345KB

  • MD5

    adba2ac8f027946da258155b140c068a

  • SHA1

    91b1dceb17403910d7aa9bee1029f11153accff4

  • SHA256

    b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279

  • SHA512

    356865ecaf00b10af50ec1f7ffdcc89249e1eaf2a1648c970393d7c66359e578ce9d6987f66dc49cb769e36e8ea62c4ff17d6b173bc793b61fa81e11e619229f

  • SSDEEP

    6144:q9xZILKtmfbcPK2U6gRURSxE8efnQe+R+FNHmZ04aR31cdpN0V:q9xZIL1bcPRUrURAOn8gTGCPMwV

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

16/02

C2

https://wewalk.cl/post.php

https://dpack-co.com/post.php

https://dr-mirahmadi.ir/post.php

https://indiaastrologyfoundation.in/post.php

https://metisacademy.ir/post.php

https://lan-samarinda.com/post.php

https://pyouleigorgawimbwans.tk/post.php

Attributes
  • build_id

    351

rc4.plain
rsa_pubkey.plain

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Blocklisted process makes network request 64 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2560
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b89d80ca3f0a5da24b8b768d2d5eb35ca1322f6bc2b01e265465ac95d7d61279.dll,#1
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2184
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of AdjustPrivilegeToken
        PID:2332

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab1AF2.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\TarC46D.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/2184-62-0x00000000744A0000-0x0000000074555000-memory.dmp

    Filesize

    724KB

  • memory/2184-55-0x00000000744A0000-0x0000000074555000-memory.dmp

    Filesize

    724KB

  • memory/2184-56-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2184-54-0x00000000744A0000-0x0000000074555000-memory.dmp

    Filesize

    724KB

  • memory/2332-59-0x0000000000090000-0x0000000000091000-memory.dmp

    Filesize

    4KB

  • memory/2332-63-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB

  • memory/2332-65-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB

  • memory/2332-66-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB

  • memory/2332-68-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB

  • memory/2332-61-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB

  • memory/2332-57-0x00000000000F0000-0x0000000000119000-memory.dmp

    Filesize

    164KB