Linux Analysis Report
i.elf

Overview

General Information

Sample name: i.elf
Analysis ID: 1538224
MD5: 79e6ed67f4a37ac3f88fc040472f21ab
SHA1: 61d3f22b6362deb78281b197e71c0ec35ba45112
SHA256: f2f45cebd49003b12f095884f9378025ead0236f6687bd35963248e703d274c7
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 64
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
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: i.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: i.elf ReversingLabs: Detection: 50%
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: i.elf, type: SAMPLE Matched rule: Linux_Packer_Patched_UPX_62e11c64 Author: unknown
Source: 5578.1.00007f7a10400000.00007f7a10422000.r-x.sdmp, type: MEMORY Matched rule: Linux_Packer_Patched_UPX_62e11c64 Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x400000
Yara signature match
Source: i.elf, type: SAMPLE Matched rule: Linux_Packer_Patched_UPX_62e11c64 reference_sample = 02f81a1e1edcb9032a1d7256a002b11e1e864b2e9989f5d24ea1c9b507895669, os = linux, severity = x86, creation_date = 2021-06-08, scan_context = file, reference = https://cujo.com/upx-anti-unpacking-techniques-in-iot-malware/, license = Elastic License v2, threat_name = Linux.Packer.Patched_UPX, fingerprint = 3297b5c63e70c557e71b739428b453039b142e1e04c2ab15eea4627d023b686d, id = 62e11c64-fc7d-4a0a-9d72-ad53ec3987ff, last_modified = 2021-07-28
Source: 5578.1.00007f7a10400000.00007f7a10422000.r-x.sdmp, type: MEMORY Matched rule: Linux_Packer_Patched_UPX_62e11c64 reference_sample = 02f81a1e1edcb9032a1d7256a002b11e1e864b2e9989f5d24ea1c9b507895669, os = linux, severity = x86, creation_date = 2021-06-08, scan_context = file, reference = https://cujo.com/upx-anti-unpacking-techniques-in-iot-malware/, license = Elastic License v2, threat_name = Linux.Packer.Patched_UPX, fingerprint = 3297b5c63e70c557e71b739428b453039b142e1e04c2ab15eea4627d023b686d, id = 62e11c64-fc7d-4a0a-9d72-ad53ec3987ff, last_modified = 2021-07-28
Source: classification engine Classification label: mal64.linELF@0/0@2/0
ELF contains segments with high entropy indicating compressed/encrypted content
Source: i.elf Submission file: segment LOAD with 7.8041 entropy (max. 8.0)
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/i.elf (PID: 5578) Queries kernel information via 'uname': Jump to behavior
Source: i.elf, 5578.1.00007ffd2da57000.00007ffd2da78000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mips/tmp/i.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/i.elf
Source: i.elf, 5578.1.000055c7acd63000.000055c7acdea000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mips
Source: i.elf, 5578.1.000055c7acd63000.000055c7acdea000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mips
Source: i.elf, 5578.1.00007ffd2da57000.00007ffd2da78000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mips
Source: i.elf, 5578.1.00007ffd2da57000.00007ffd2da78000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com unknown unknown