Overview

overview

7

Static

static

5

mipsel.elf

debian-12-mipsel

7

Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    debian-12_mipsel
  • resource
    debian12-mipsel-20260513-en
  • resource tags

    arch:mipselimage:debian12-mipsel-20260513-enkernel:6.1.0-17-4kc-maltalocale:en-usos:debian-12-mipselsystem
  • submitted
    30/09/2026, 19:20

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    mipsel.elf
  • Size 83KB
  • Sample260930-x18xvsgd33
  • SHA256 0c94af08212c8f30d62a6d1a0a03d872d9bfe07fb80b935ef155063c35cbb003
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
antivmdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationupx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Deletes journal logs 1 TTPs 2 IoCs

    Deletes systemd journal logs. Likely to evade detection.

    defense_evasion
  • Modifies the /etc/hosts DNS resolution file 1 TTPs 1 IoCs

    Modifying the /etc/hosts name-resolution file changes IP routing, which can facilitate traffic hijacking or the blocking of (security update) endpoints.

  • Creates/modifies Cron job 1 TTPs 1 IoCs

    Cron allows running tasks on a schedule, and is commonly used for malware persistence.

    executionpersistenceprivilege_escalation
  • Deletes log files 1 TTPs 4 IoCs

    Deletes log files on the system.

    defense_evasion
  • Enumerates active TCP sockets 1 TTPs 1 IoCs

    Gets active TCP sockets from /proc virtual filesystem.

    discovery
  • Enumerates running processes

    Discovers information about currently running processes on the system

  • Modifies rc script 2 TTPs 1 IoCs

    Adding/modifying system rc scripts is a common persistence mechanism.

    persistence
  • Modifies systemd 2 TTPs 1 IoCs

    Adds/ modifies systemd service files. Likely to achieve persistence.

    persistenceprivilege_escalation
  • UPX packed file 1 IoCs

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

    upx
  • Changes its process name 10 IoCs
  • Checks CPU configuration 1 TTPs 1 IoCs

    Checks CPU information which indicate if the system is a virtual machine.

    antivm
  • Reads system network configuration 1 TTPs 2 IoCs

    Uses contents of /proc filesystem to enumerate network settings.

    discovery
  • Reads runtime system information 64 IoCs

    Reads data from /proc virtual filesystem.

    discovery
  • System Network Configuration Discovery 1 TTPs 1 IoCs

    Adversaries may gather information about the network configuration of a system.

    discovery

Processes

  • /tmp/mipsel.elf
    /tmp/mipsel.elf
    1⤵
    • Deletes itself
    • Modifies the /etc/hosts DNS resolution file
    • Creates/modifies Cron job
    • Deletes log files
    • Enumerates active TCP sockets
    • Modifies rc script
    • Modifies systemd
    • Changes its process name
    • Checks CPU configuration
    • Reads system network configuration
    • Reads runtime system information
    • System Network Configuration Discovery
    PID:800
    • /bin/sh
      sh -c "systemctl daemon-reload 2>/dev/null; systemctl enable killer-helper.service 2>/dev/null"
      2⤵
        PID:814
        • /usr/bin/systemctl
          systemctl daemon-reload
          3⤵
            PID:828
          • /usr/bin/systemctl
            systemctl enable killer-helper.service
            3⤵
            • Reads runtime system information
            PID:868
        • /bin/sh
          sh -c "journalctl --rotate --vacuum-time=1s 2>/dev/null"
          2⤵
            PID:862
            • /usr/bin/journalctl
              journalctl --rotate "--vacuum-time=1s"
              3⤵
              • Deletes journal logs
              PID:865

        Network

              MITRE ATT&CK Enterprise v16

              Reconnaissance

              Resource Development

              Initial Access

              Execution

              Scheduled Task/Job

              1
              T1053

              Cron

              1
              T1053.003

              Persistence

              Boot or Logon Autostart Execution

              2
              T1547

              XDG Autostart Entries

              1
              T1547.013

              Boot or Logon Initialization Scripts

              1
              T1037

              RC Scripts

              1
              T1037.004

              Create or Modify System Process

              1
              T1543

              Systemd Service

              1
              T1543.002

              Scheduled Task/Job

              1
              T1053

              Cron

              1
              T1053.003

              Privilege Escalation

              Boot or Logon Autostart Execution

              2
              T1547

              XDG Autostart Entries

              1
              T1547.013

              Boot or Logon Initialization Scripts

              1
              T1037

              RC Scripts

              1
              T1037.004

              Create or Modify System Process

              1
              T1543

              Systemd Service

              1
              T1543.002

              Scheduled Task/Job

              1
              T1053

              Cron

              1
              T1053.003

              Defense Evasion

              Indicator Removal

              2
              T1070

              Clear Linux or Mac System Logs

              2
              T1070.002

              Virtualization/Sandbox Evasion

              1
              T1497

              System Checks

              1
              T1497.001

              Credential Access

              Adversary-in-the-Middle

              1
              T1557

              Discovery

              System Network Configuration Discovery

              2
              T1016

              Internet Connection Discovery

              1
              T1016.001

              System Network Connections Discovery

              1
              T1049

              Virtualization/Sandbox Evasion

              1
              T1497

              System Checks

              1
              T1497.001

              Lateral Movement

              Collection

              Adversary-in-the-Middle

              1
              T1557

              Command and Control

              Exfiltration

              Impact

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              .hosts.tmp.uTuVHi
              • Path /etc/.hosts.tmp.uTuVHi
              • Size 260B
              • SHA256 d92549343198606c1df5cca348ec1755c96944b9b2baa9d080b8a88240ad1be5
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              killer-helper
              • Path /etc/cron.d/killer-helper
              • Size 45B
              • SHA256 2401bba8cdbe1b2f259b6bac2acf553ddacea9e3f7e70dbc55a0edbec171794b
              • MD5 SHA1 SHA512
              Submit Download

              hosts
              • Path /etc/hosts
              • Size 790B
              • SHA256 a64e60adb38020455d9eaf9edb069e1de5ce854de2f2c4f9d17959d981fb2b16
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              rc.local
              • Path /etc/rc.local
              • Size 34B
              • SHA256 39c3adba30914b4b1f783d4a6e064a69532f236ef273c9eb0dfdef32a9a7cefd
              • MD5 SHA1 SHA512
              Submit Download

              killer-helper.service
              • Path /etc/systemd/system/killer-helper.service
              • Size 186B
              • SHA256 84c3b3dd46f76cb9fffee80fda7ebcd57bbe0d5088b3eddff46b1beb3b0cf599
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              .killer-wd.pid.tmp.811
              • Path /run/.killer-wd.pid.tmp.811
              • Size 23B
              • SHA256 e16d9ccb46eca7af3ec38f48eeb20e54d5d306a9ffd265039dfb19f855d2ca9b
              • MD5 SHA1 SHA512
              Submit Download

              .killer.pid.tmp.810
              • Path /run/.killer.pid.tmp.810
              • Size 23B
              • SHA256 ebdfd9d69c88d82bd50db60eb89d94b1aece790b2a323c5f89a337f9cafdb977
              • MD5 SHA1 SHA512
              Submit Download

              .locker.pid.tmp.813
              • Path /run/.locker.pid.tmp.813
              • Size 23B
              • SHA256 c2199ef3fe35bc6be6580a93d194ac54f0dcc7415f56c848399d8e7570d35965
              • MD5 SHA1 SHA512
              Submit Download

              .locker.ready
              • Path /run/.locker.ready
              • Size 1B
              • SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
              • MD5 SHA1 SHA512
              Submit Download

              .main.pid.tmp.806
              • Path /run/.main.pid.tmp.806
              • Size 17B
              • SHA256 fcc20de27afea7f67c57fddd3b95007b3d44d2cd43c20558c10856c54267787d
              • MD5 SHA1 SHA512
              Submit Download

              .sh7f3a.dis.list
              • Path /run/.sh7f3a.dis.list
              • Size 62B
              • SHA256 5774eed03386d2d304b9c233532de7564030ecb2954556224f1e52ec92956b72
              • MD5 SHA1 SHA512 TLSH
              Submit Download

              .watchdog.pid.tmp.813
              • Path /run/.watchdog.pid.tmp.813
              • Size 23B
              • SHA256 8e7ae5f01d846b05dfdae4a29631712aab34d8a626814ba93ac43ea3d88a23bd
              • MD5 SHA1 SHA512
              Submit Download

              .watchdog.pid.tmp.854
              • Path /run/.watchdog.pid.tmp.854
              • Size 23B
              • SHA256 d44b3cd256dfa91b1dca98508cb115151f4377c0b11e8b95fc56f44f0332f2c1
              • MD5 SHA1 SHA512
              Submit Download

              .watchdog2.pid.tmp.813
              • Path /run/.watchdog2.pid.tmp.813
              • Size 23B
              • SHA256 b3e00a58ff7707142e35568eb4b04820f807436a17c3d4dcff1b24bf107f8e0b
              • MD5 SHA1 SHA512
              Submit Download

              .system-helper
              • Path /usr/lib/systemd/.system-helper
              • Size 83KB
              • SHA256 0c94af08212c8f30d62a6d1a0a03d872d9bfe07fb80b935ef155063c35cbb003
              • MD5 SHA1 SHA512 SSDEEP TLSH
              Submit Download