Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 17:56

General

  • Target

    b11b1b57a3bb5f7ea58bd5b191ab3813432fcc41e7f4e321fa61b848d8c86606.exe

  • Size

    864KB

  • MD5

    ba371037effb3bc1fb01bb593a705272

  • SHA1

    a557ecb6ba798abf36b6c691d19e50e03e2285df

  • SHA256

    b11b1b57a3bb5f7ea58bd5b191ab3813432fcc41e7f4e321fa61b848d8c86606

  • SHA512

    373624c6d599275cd090fe584cb5ce26f3acabd2ed070623470764e5a43d875a6c0220bd36b056299773f3b8ff12cf19ce261ab7edd80661ad8d5c3b535a7556

  • SSDEEP

    12288:yMrjy90R4n/HwA+x/tRDFjep/9fX7ZqpYM3b3GOfGsBuku78cKIyVUYFYZT5zd+O:Zy4k/HwVZWZqScasI778FIyTYZNsiF

Malware Config

Extracted

Family

redline

Botnet

kira

C2

77.91.68.48:19071

Attributes
  • auth_value

    1677a40fd8997eb89377e1681911e9c6

Signatures

  • Detects Healer an antivirus disabler dropper 2 IoCs
  • Healer

    Healer an antivirus disabler dropper.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b11b1b57a3bb5f7ea58bd5b191ab3813432fcc41e7f4e321fa61b848d8c86606.exe
    "C:\Users\Admin\AppData\Local\Temp\b11b1b57a3bb5f7ea58bd5b191ab3813432fcc41e7f4e321fa61b848d8c86606.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:1432
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y8651279.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y8651279.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3504
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k2136327.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k2136327.exe
        3⤵
        • Modifies Windows Defender Real-time Protection settings
        • Executes dropped EXE
        • Windows security modification
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2884
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l5542130.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l5542130.exe
        3⤵
        • Executes dropped EXE
        PID:4912
  • C:\Windows\system32\sc.exe
    C:\Windows\system32\sc.exe start wuauserv
    1⤵
    • Launches sc.exe
    PID:4592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\System.dll.log

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\y8651279.exe

    Filesize

    681KB

    MD5

    2fa0b20366653721bfd1f84d5b98b444

    SHA1

    c773631701fe88e4005f677f6c1ef79214e86b67

    SHA256

    fc2efa5d597bb9ee814cf60cad1a3bd950f888f9872e9eb0641122d6970f1b4e

    SHA512

    55c6446678428d769252290284b4fb7e8754e2bea6eec83aa69c89265d73bbadd5960ccb4a3fcc72814adfe3ba9210695047d20fde33db059896cb8dd8f36b46

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\k2136327.exe

    Filesize

    530KB

    MD5

    d34061162711706e5dd2ab26f14dcb48

    SHA1

    6d82cb68928bdff681abb7d57e189134b423cbb9

    SHA256

    d9acdfeecdcc8d68575f0b12776b8de817879244b722cbfce99bebee466e058a

    SHA512

    030b52f1fdf8e23d5928804f83b885eef245c4997bfde8cf84f553b17495c5e2480c0586f646c93fa229c1dde281d296e766880bf7a13efd70ba0fe8d4273379

  • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\l5542130.exe

    Filesize

    692KB

    MD5

    c1324e71cf7b600ddcd634bd62a66011

    SHA1

    c4931a75b47ef4d24cb2d207ef2541d632fcd9a1

    SHA256

    76fa42dfdd3e0ada08e4534c0cd169ef3d15c0561ca01074b43f621e885011d7

    SHA512

    1ff9c15bb553dd793413ad5f58b02c45bbeeeea5663235132c5771e6ff5b917c1a4985790682200c94b44d617b795b9846d81904226431389b5f185c26c3332c

  • memory/2884-14-0x0000000000401000-0x0000000000402000-memory.dmp

    Filesize

    4KB

  • memory/2884-15-0x0000000000510000-0x000000000051A000-memory.dmp

    Filesize

    40KB

  • memory/2884-19-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/4912-25-0x0000000000510000-0x0000000000540000-memory.dmp

    Filesize

    192KB

  • memory/4912-30-0x0000000002060000-0x0000000002066000-memory.dmp

    Filesize

    24KB

  • memory/4912-31-0x0000000009F70000-0x000000000A588000-memory.dmp

    Filesize

    6.1MB

  • memory/4912-32-0x000000000A590000-0x000000000A69A000-memory.dmp

    Filesize

    1.0MB

  • memory/4912-33-0x0000000004B80000-0x0000000004B92000-memory.dmp

    Filesize

    72KB

  • memory/4912-34-0x0000000004BA0000-0x0000000004BDC000-memory.dmp

    Filesize

    240KB

  • memory/4912-35-0x0000000001FE0000-0x000000000202C000-memory.dmp

    Filesize

    304KB