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Linux Analysis Report
t2.elf

Overview

General Information

Sample name:t2.elf
Analysis ID:1589936
MD5:9b288fd50fd231f5961035f4628f12bb
SHA1:ed2ed4ae6ae9dee691ddc27d127660243fa11f4c
SHA256:053c4a9eeca2f2436daf4273a9d8e2f680834e05a9d2eeabcebcfffa17679544
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
Enumerates processes within the "proc" file system
Sample has stripped symbol table
Sample tries to kill a process (SIGKILL)
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)

Classification

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1589936
Start date and time:2025-01-13 10:47:07 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 42s
Hypervisor based Inspection enabled:false
Report type:full
Cookbook file name:defaultlinuxfilecookbook.jbs
Analysis 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)
Analysis Mode:default
Sample name:t2.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/t2.elf
PID:6232
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  • system is lnxubuntu20
  • t2.elf (PID: 6232, Parent: 6155, MD5: 0d6f61f82cf2f781c6eb0661071d42d9) Arguments: /tmp/t2.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: t2.elfVirustotal: Detection: 17%Perma Link
Source: t2.elfReversingLabs: Detection: 21%
Source: global trafficTCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: global trafficTCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global trafficTCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknownTCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.43
Source: t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpString found in binary or memory: http://1/wget.sh
Source: t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpString found in binary or memory: http://9/curl.sh
Source: t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/encoding/
Source: t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpString found in binary or memory: http://schemas.xmlsoap.org/soap/envelope/
Source: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443
Source: ELF static info symbol of initial sample.symtab present: no
Source: /tmp/t2.elf (PID: 6232)SIGKILL sent: pid: 884, result: successfulJump to behavior
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/6232/statusJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/491/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/491/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/1/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/1/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/793/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/793/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/761/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/761/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/772/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/772/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/774/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/774/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/785/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/785/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/796/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/796/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/884/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/884/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/720/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/720/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/797/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/797/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/721/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/721/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/777/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/777/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/788/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/788/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/799/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/799/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/789/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/789/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/800/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/800/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/658/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/658/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/801/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/801/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/759/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/759/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/847/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)File opened: /proc/847/cmdlineJump to behavior
Source: /tmp/t2.elf (PID: 6232)Queries kernel information via 'uname': Jump to behavior
Source: t2.elf, 6232.1.00007fff2fe4d000.00007fff2fe6e000.rw-.sdmpBinary or memory string: ~x86_64/usr/bin/qemu-mipsel/tmp/t2.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/t2.elf
Source: t2.elf, 6232.1.000055c582a46000.000055c582aee000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/mipsel
Source: t2.elf, 6232.1.000055c582a46000.000055c582aee000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/mipsel
Source: t2.elf, 6232.1.00007fff2fe4d000.00007fff2fe6e000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Source: t2.elf, 6232.1.00007fff2fe4d000.00007fff2fe6e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-mipsel
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume Access1
OS Credential Dumping
11
Security Software Discovery
Remote ServicesData from Local System1
Encrypted Channel
Exfiltration Over Other Network MediumAbuse Accessibility Features
CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsRootkitLSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable Media1
Application Layer Protocol
Exfiltration Over BluetoothNetwork Denial of Service
No configs have been found
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
SourceDetectionScannerLabelLink
t2.elf17%VirustotalBrowse
t2.elf21%ReversingLabsLinux.Trojan.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
NameSourceMaliciousAntivirus DetectionReputation
http://1/wget.sht2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpfalse
    high
    http://schemas.xmlsoap.org/soap/encoding/t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpfalse
      high
      http://9/curl.sht2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpfalse
        high
        http://schemas.xmlsoap.org/soap/envelope/t2.elf, 6232.1.00007fc5ac45a000.00007fc5ac45f000.rw-.sdmpfalse
          high
          • No. of IPs < 25%
          • 25% < No. of IPs < 50%
          • 50% < No. of IPs < 75%
          • 75% < No. of IPs
          IPDomainCountryFlagASNASN NameMalicious
          109.202.202.202
          unknownSwitzerland
          13030INIT7CHfalse
          91.189.91.43
          unknownUnited Kingdom
          41231CANONICAL-ASGBfalse
          91.189.91.42
          unknownUnited Kingdom
          41231CANONICAL-ASGBfalse
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                                                  No context
                                                  No context
                                                  No created / dropped files found
                                                  File type:ELF 32-bit LSB executable, MIPS, MIPS-I version 1 (SYSV), statically linked, stripped
                                                  Entropy (8bit):5.531955015052461
                                                  TrID:
                                                  • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                  File name:t2.elf
                                                  File size:105'776 bytes
                                                  MD5:9b288fd50fd231f5961035f4628f12bb
                                                  SHA1:ed2ed4ae6ae9dee691ddc27d127660243fa11f4c
                                                  SHA256:053c4a9eeca2f2436daf4273a9d8e2f680834e05a9d2eeabcebcfffa17679544
                                                  SHA512:a5077afd6465e295061c43d8297a343d8d335c784922e3a4ebee14c6c352b0214c618d5a405b7901ed6f779a24ecce68862a56156f147b3b105f1ffb69e3c19d
                                                  SSDEEP:1536:hzNo4I8JP2Ul3fKJFPf2eXSx4y07BOzaKuQ69Vf06UVnPIZgTeg:hzNo4I8h28vKJFxr94PJT
                                                  TLSH:70A3B719BF620FF7E86BCC7F01A8074634DC670621A57B797638D828B59A54E4BD38B0
                                                  File Content Preview:.ELF....................p.@.4...........4. ...(...............@...@.`...`.....................E...E.h...X4..........Q.td...............................<l..'!......'.......................<H..'!.............9'.. ........................<...'!... .......0o9

                                                  ELF header

                                                  Class:ELF32
                                                  Data:2's complement, little endian
                                                  Version:1 (current)
                                                  Machine:MIPS R3000
                                                  Version Number:0x1
                                                  Type:EXEC (Executable file)
                                                  OS/ABI:UNIX - System V
                                                  ABI Version:0
                                                  Entry Point Address:0x400270
                                                  Flags:0x1007
                                                  ELF Header Size:52
                                                  Program Header Offset:52
                                                  Program Header Size:32
                                                  Number of Program Headers:3
                                                  Section Header Offset:105176
                                                  Section Header Size:40
                                                  Number of Section Headers:15
                                                  Header String Table Index:14
                                                  NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                  NULL0x00x00x00x00x0000
                                                  .initPROGBITS0x4000940x940x8c0x00x6AX004
                                                  .textPROGBITS0x4001200x1200x16e800x00x6AX0016
                                                  .finiPROGBITS0x416fa00x16fa00x5c0x00x6AX004
                                                  .rodataPROGBITS0x4170000x170000x1c600x00x2A0016
                                                  .eh_framePROGBITS0x4590000x190000x40x00x3WA004
                                                  .ctorsPROGBITS0x4590040x190040x80x00x3WA004
                                                  .dtorsPROGBITS0x45900c0x1900c0x80x00x3WA004
                                                  .data.rel.roPROGBITS0x4590180x190180xc0x00x3WA004
                                                  .dataPROGBITS0x4590300x190300x4d80x00x3WA0016
                                                  .gotPROGBITS0x4595100x195100x5580x40x10000003WAp0016
                                                  .sbssNOBITS0x459a680x19a680x180x00x10000003WAp004
                                                  .bssNOBITS0x459a800x19a680x29d80x00x3WA0016
                                                  .mdebug.abi32PROGBITS0x9d80x19a680x00x00x0001
                                                  .shstrtabSTRTAB0x00x19a680x6e0x00x0001
                                                  TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                  LOAD0x00x4000000x4000000x18c600x18c605.55290x5R E0x10000.init .text .fini .rodata
                                                  LOAD0x190000x4590000x4590000xa680x34585.25040x6RW 0x10000.eh_frame .ctors .dtors .data.rel.ro .data .got .sbss .bss
                                                  GNU_STACK0x00x00x00x00x00.00000x7RWE0x4
                                                  TimestampSource PortDest PortSource IPDest IP
                                                  Jan 13, 2025 10:47:53.915479898 CET43928443192.168.2.2391.189.91.42
                                                  Jan 13, 2025 10:47:59.290687084 CET42836443192.168.2.2391.189.91.43
                                                  Jan 13, 2025 10:48:00.574491024 CET4251680192.168.2.23109.202.202.202
                                                  Jan 13, 2025 10:48:14.904596090 CET43928443192.168.2.2391.189.91.42
                                                  Jan 13, 2025 10:48:25.143116951 CET42836443192.168.2.2391.189.91.43
                                                  Jan 13, 2025 10:48:31.286206007 CET4251680192.168.2.23109.202.202.202
                                                  Jan 13, 2025 10:48:55.858695030 CET43928443192.168.2.2391.189.91.42
                                                  Jan 13, 2025 10:49:16.335928917 CET42836443192.168.2.2391.189.91.43

                                                  System Behavior

                                                  Start time (UTC):09:47:54
                                                  Start date (UTC):13/01/2025
                                                  Path:/tmp/t2.elf
                                                  Arguments:/tmp/t2.elf
                                                  File size:5773336 bytes
                                                  MD5 hash:0d6f61f82cf2f781c6eb0661071d42d9