Overview

overview

7

Static

static

7

1b3a0d513f...17.exe

windows7-x64

7

1b3a0d513f...17.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30-12-2023 14:20

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General

  • Target

    1b3a0d513f2c2a71d67476321e17c117.exe

  • Size

    160KB

  • MD5

    1b3a0d513f2c2a71d67476321e17c117

  • SHA1

    48d5b934b367e698f3296c0402dc72743be54c56

  • SHA256

    777a75ed7a876a8d53366ef3c6e013e63f7e7c92abb22b4a8cb8846ed8eb1bd4

  • SHA512

    3333ebfdd44d59839c537127dc533afdb6bdda8c67ab992c12ee9f4d53705b03f733ee84003ffebd36d25c20dda605702400015d13e2d6c041b861b679648c19

  • SSDEEP

    3072:ePtSz4z+crPNHkfbkTu3acZQzF9Q00zyerY2w2ZPROgGYSCZPSVoutn:KozGlukTuXe+0ul02wiPR+PVoS

Score
7/10
persistenceupx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b3a0d513f2c2a71d67476321e17c117.exe
    "C:\Users\Admin\AppData\Local\Temp\1b3a0d513f2c2a71d67476321e17c117.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\Users\Admin\AppData\Roaming\mahmud.exe
      "C:\Users\Admin\AppData\Roaming\mahmud.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3048
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c "for /L %i in (0,1,100000000) do (del "C:\Users\Admin\AppData\Local\Temp\1b3a0d513f2c2a71d67476321e17c117.exe" && if not exist "C:\Users\Admin\AppData\Local\Temp\1b3a0d513f2c2a71d67476321e17c117.exe" exit 1)"
      2⤵
      • Deletes itself
      PID:2092

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\mahmud.exe
    Filesize

    160KB

    MD5

    1b3a0d513f2c2a71d67476321e17c117

    SHA1

    48d5b934b367e698f3296c0402dc72743be54c56

    SHA256

    777a75ed7a876a8d53366ef3c6e013e63f7e7c92abb22b4a8cb8846ed8eb1bd4

    SHA512

    3333ebfdd44d59839c537127dc533afdb6bdda8c67ab992c12ee9f4d53705b03f733ee84003ffebd36d25c20dda605702400015d13e2d6c041b861b679648c19

    Download Submit
  • memory/1272-0-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

    Download
  • memory/1272-1-0x0000000000230000-0x0000000000245000-memory.dmp
    Filesize

    84KB

    Download
  • memory/1272-2-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

    Download
  • memory/1272-12-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

    Download
  • memory/1272-8-0x0000000002AA0000-0x0000000002AE7000-memory.dmp
    Filesize

    284KB

    Download
  • memory/3048-11-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

    Download
  • memory/3048-29-0x0000000000400000-0x0000000000447000-memory.dmp
    Filesize

    284KB

    Download