Linux Analysis Report
zmap.arm5.elf

Overview

General Information

Sample name: zmap.arm5.elf
Analysis ID: 1546738
MD5: 530e5663f3ead8fae2ddd68b9e0973c7
SHA1: f256d1caeeb9f314dc21f79632d420cfb53a9ce6
SHA256: 3ac8336d25e53c3a767f13fc8469d03a9f5a004d7f2d03d8797901625ba0b2fb
Tags: elfuser-abuse_ch
Infos:

Detection

Okiru
Score: 64
Range: 0 - 100
Whitelisted: false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Okiru
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: zmap.arm5.elf ReversingLabs: Detection: 55%
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: zmap.arm5.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: 5495.1.00007f0fd4017000.00007f0fd4023000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Source: Process Memory Space: zmap.arm5.elf PID: 5495, type: MEMORYSTR Matched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: zmap.arm5.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: 5495.1.00007f0fd4017000.00007f0fd4023000.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: zmap.arm5.elf PID: 5495, 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: mal64.troj.linELF@0/0@2/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/zmap.arm5.elf (PID: 5495) Queries kernel information via 'uname': Jump to behavior
Source: zmap.arm5.elf, 5495.1.00007ffcbc5fa000.00007ffcbc61b000.rw-.sdmp Binary or memory string: qemu: %s: %s
Source: zmap.arm5.elf, 5495.1.00007ffcbc5fa000.00007ffcbc61b000.rw-.sdmp Binary or memory string: leqemu: %s: %s
Source: zmap.arm5.elf, 5495.1.00007ffcbc5fa000.00007ffcbc61b000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/zmap.arm5.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/zmap.arm5.elf
Source: zmap.arm5.elf, 5495.1.0000555af4e9e000.0000555af4fcc000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: zmap.arm5.elf, 5495.1.00007ffcbc5fa000.00007ffcbc61b000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: zmap.arm5.elf, 5495.1.0000555af4e9e000.0000555af4fcc000.rw-.sdmp Binary or memory string: rg.qemu.gdb.arm.sys.regs">
Source: zmap.arm5.elf, 5495.1.0000555af4e9e000.0000555af4fcc000.rw-.sdmp Binary or memory string: ZU!/etc/qemu-binfmt/arm
Source: zmap.arm5.elf, 5495.1.0000555af4e9e000.0000555af4fcc000.rw-.sdmp Binary or memory string: ZUrg.qemu.gdb.arm.sys.regs">

Stealing of Sensitive Information
barindex
Yara detected Okiru
Source: Yara match File source: zmap.arm5.elf, type: SAMPLE
Source: Yara match File source: 5495.1.00007f0fd4017000.00007f0fd4023000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: zmap.arm5.elf PID: 5495, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Okiru
Source: Yara match File source: zmap.arm5.elf, type: SAMPLE
Source: Yara match File source: 5495.1.00007f0fd4017000.00007f0fd4023000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: zmap.arm5.elf PID: 5495, type: MEMORYSTR

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.25 true