Linux Analysis Report
vlxx.ppc.elf

Overview

General Information

Sample name: vlxx.ppc.elf
Analysis ID: 1579950
MD5: 789120b8cc5890a5dd3f5425f980d12e
SHA1: babb06d9dfacf2aeeb43f48e618715e63f2811e2
SHA256: 258af7156e33647927cc25e42c1679e9d2d4a9a5b8be9e5bd547584c723b136f
Tags: elfuser-abuse_ch
Infos:

Detection

Gafgyt, Mirai, Okiru
Score: 100
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Yara detected Okiru
Connects to many ports of the same IP (likely port scanning)
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Found strings indicative of a multi-platform dropper
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

Name Description Attribution Blogpost URLs Link
Bashlite, Gafgyt Bashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite
Name Description Attribution Blogpost URLs Link
Mirai Mirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world. No Attribution https://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai

AV Detection

barindex
Source: vlxx.ppc.elf Avira: detected
Source: vlxx.ppc.elf ReversingLabs: Detection: 50%
Source: vlxx.ppc.elf String: HTTP/1.1 200 OKcundi.armcundi.arm5cundi.arm6cundi.arm7cundi.mipscundi.mpslcundi.x86_64cundi.sh4/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/bin/busybox/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt//proc/proc/%d/cmdlinerwgetcurlbusyboxecho

Networking

barindex
Source: global traffic TCP traffic: 147.93.12.224 ports 42597,2,4,5,7,9
Source: global traffic TCP traffic: 192.168.2.23:59950 -> 147.93.12.224:42597
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: global traffic DNS traffic detected: DNS query: era-bot.zapto.org
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443

System Summary

barindex
Source: vlxx.ppc.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Initial sample String containing 'busybox' found: /bin/busybox
Source: Initial sample String containing 'busybox' found: busybox
Source: Initial sample String containing 'busybox' found: HTTP/1.1 200 OKcundi.armcundi.arm5cundi.arm6cundi.arm7cundi.mipscundi.mpslcundi.x86_64cundi.sh4/proc//proc/%s/exe/proc/self/exevar/Challengeapp/hi3511gmDVRiboxusr/dvr_main _8182T_1108mnt/mtd/app/guivar/Kylinl0 c/udevdanko-app/ankosample _8182T_1104var/tmp/soniahicorestm_hi3511_dvr/bin/busybox/usr/lib/systemd/systemd/usr/libexec/openssh/sftp-serverusr/shellmnt/sys/bin/boot/media/srv/var/run/sbin/lib/etc/dev/home/Davincitelnetsshwatchdog/var/spool/var/Sofiasshd/usr/compress/bin//compress/bin/compress/usr/bashhttpdtelnetddropbearropbearencodersystem/root/dvr_gui//root/dvr_app//anko-app//opt//proc/proc/%d/cmdlinerwgetcurlbusyboxecho
Source: ELF static info symbol of initial sample .symtab present: no
Source: vlxx.ppc.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
Source: classification engine Classification label: mal100.troj.linELF@0/1025@1/0
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/6230/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1582/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/3088/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/230/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/232/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1579/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1699/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/234/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1335/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1698/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1334/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1576/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/2302/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/236/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/237/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/910/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/119/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/912/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/6229/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/10/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/2307/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/11/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/918/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/12/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/13/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/14/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/15/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/16/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/17/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/18/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/6246/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1594/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/120/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/121/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1349/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/122/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/243/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/123/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/2/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/124/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/3/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/4/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/125/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/126/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1344/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1465/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1586/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/127/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/6/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/248/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/128/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/249/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1463/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/800/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/9/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/801/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/20/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/21/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1900/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/22/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/23/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/24/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/25/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/26/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/27/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/28/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/29/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/491/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/250/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/130/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/251/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/252/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/132/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/253/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/254/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/4508/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/255/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/256/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1599/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/257/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1477/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/379/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/258/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1476/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/259/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1475/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/6248/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/936/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/30/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/2208/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/35/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6250) File opened: /proc/1809/cmdline Jump to behavior
Source: /tmp/vlxx.ppc.elf (PID: 6244) Queries kernel information via 'uname': Jump to behavior
Source: vlxx.ppc.elf, 6244.1.000055587c40b000.000055587c4bb000.rw-.sdmp Binary or memory string: !/etc/qemu-binfmt/ppc11!hotpluggableq
Source: vlxx.ppc.elf, 6244.1.000055587c40b000.000055587c4bb000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/ppc
Source: vlxx.ppc.elf, 6244.1.00007fff51e0d000.00007fff51e2e000.rw-.sdmp Binary or memory string: /usr/bin/qemu-ppc
Source: vlxx.ppc.elf, 6244.1.00007fff51e0d000.00007fff51e2e000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-ppc/tmp/vlxx.ppc.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/vlxx.ppc.elf

Stealing of Sensitive Information

barindex
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR

Remote Access Functionality

barindex
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR
Source: Yara match File source: vlxx.ppc.elf, type: SAMPLE
Source: Yara match File source: 6244.1.00007f2ce0001000.00007f2ce001d000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: vlxx.ppc.elf PID: 6244, type: MEMORYSTR
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs