Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2023 21:01

General

  • Target

    Recuro Ext v2.exe

  • Size

    229KB

  • MD5

    d7012377350fd49496b9204c27fee5c3

  • SHA1

    6e1626fa282224e2e4970c29df0960098b60f775

  • SHA256

    03f48b05a4b0d4070d0c10dc264b64a2edf0a4c767dfc499e045f84f6c9b271b

  • SHA512

    88f1b96894253e3f5f14a22a02f43654b8abdf7b084ac9a38278aa7898503c00e35db2c81a1f691d9ed629df7a29ce190bd51f3ff35b3570d7e1d8a30ad617d3

  • SSDEEP

    6144:lloZM+rIkd8g+EtXHkv/iD4cu5xClK8e1mVWi:noZtL+EP87qqI

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Recuro Ext v2.exe
    "C:\Users\Admin\AppData\Local\Temp\Recuro Ext v2.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2844
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3232

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3136-0-0x00000240ACEA0000-0x00000240ACEE0000-memory.dmp

    Filesize

    256KB

  • memory/3136-1-0x00007FFCD9090000-0x00007FFCD9B51000-memory.dmp

    Filesize

    10.8MB

  • memory/3136-2-0x00000240AEC60000-0x00000240AEC70000-memory.dmp

    Filesize

    64KB

  • memory/3136-4-0x00007FFCD9090000-0x00007FFCD9B51000-memory.dmp

    Filesize

    10.8MB

  • memory/3232-5-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-7-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-6-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-11-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-12-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-13-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-14-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-15-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-17-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB

  • memory/3232-16-0x0000018E8B990000-0x0000018E8B991000-memory.dmp

    Filesize

    4KB