Overview

overview

9

Static

static

8

635d926cac...b5f647

debian-9-armhf

9

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General

  • Target

    635d926cace851bef7df910d8cb5f647

  • Size

    120KB

  • Sample

    231219-3egjdahha5

  • MD5

    635d926cace851bef7df910d8cb5f647

  • SHA1

    543282811f7ec6ab8743f5ab877c040b16ed9a10

  • SHA256

    bba18438991935a5fb91c8f315d08792c2326b2ce19f2be117f7dab984c47bdf

  • SHA512

    859bd4682e06a511961de11cfe8e4f047a2ac5f85fc388df5108c8f5e0a0af628bb81e378958a32c8606ae50110020f7b8374de06dea1eccabbe89e213415209

  • SSDEEP

    3072:6X8JNZXopYyKyI/LvKtL2faYk+djHdiDI0eXaBLTRP4otGP/x:6Xs4pYy6/LKR2SrsTkDI0eXaBBxwP5

Score
9/10
discoverypersistenceupx

Malware Config

Targets

    • Target

      635d926cace851bef7df910d8cb5f647

    • Size

      120KB

    • MD5

      635d926cace851bef7df910d8cb5f647

    • SHA1

      543282811f7ec6ab8743f5ab877c040b16ed9a10

    • SHA256

      bba18438991935a5fb91c8f315d08792c2326b2ce19f2be117f7dab984c47bdf

    • SHA512

      859bd4682e06a511961de11cfe8e4f047a2ac5f85fc388df5108c8f5e0a0af628bb81e378958a32c8606ae50110020f7b8374de06dea1eccabbe89e213415209

    • SSDEEP

      3072:6X8JNZXopYyKyI/LvKtL2faYk+djHdiDI0eXaBLTRP4otGP/x:6Xs4pYy6/LKR2SrsTkDI0eXaBBxwP5

    Score
    9/10
    discoverypersistenceupx

    • Contacts a large (4772) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Patched UPX-packed file

      Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

    • Changes its process name

    • Modifies Watchdog functionality

      Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

    • UPX packed file

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

      upx

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

      discovery

    • Enumerates active TCP sockets

      Gets active TCP sockets from /proc virtual filesystem.

    • Modifies init.d

      Adds/modifies system service, likely for persistence.

      persistence

    • Writes file to system bin folder

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Hijack Execution Flow

1
T1574

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Hijack Execution Flow

1
T1574

Defense Evasion

Impair Defenses

1
T1562

Hijack Execution Flow

1
T1574

Credential Access

Discovery

Network Service Discovery

2
T1046

System Network Connections Discovery

1
T1049

System Network Configuration Discovery

1
T1016

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks