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Linux Analysis Report
arm7.elf

Overview

General Information

Sample name:arm7.elf
Analysis ID:1594469
MD5:cc61891380792d48887dccacbb305625
SHA1:f4940a01b156fcd9259ba8d8cac0f52fe0db6d05
SHA256:bf7cbe93717f80a1d2ca78c862286fa2b8c1d92dad18a86008653d1d4084fe10
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100
Whitelisted:false

Signatures

Multi AV Scanner detection for submitted file
Detected TCP or UDP traffic on non-standard ports
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)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1594469
Start date and time:2025-01-19 02:47:04 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 47s
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:arm7.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/arm7.elf
PID:6240
Exit Code:0
Exit Code Info:
Killed:False
Standard Output:

Standard Error:
  • system is lnxubuntu20
  • arm7.elf (PID: 6240, Parent: 6163, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/arm7.elf
    • arm7.elf New Fork (PID: 6242, Parent: 6240)
      • arm7.elf New Fork (PID: 6244, Parent: 6242)
        • arm7.elf New Fork (PID: 6250, Parent: 6244)
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: arm7.elfReversingLabs: Detection: 21%
Source: global trafficTCP traffic: 192.168.2.23:48744 -> 85.239.34.134:5683
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: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
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: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
Source: unknownTCP traffic detected without corresponding DNS query: 85.239.34.134
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: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /tmp/arm7.elf (PID: 6240)Queries kernel information via 'uname': Jump to behavior
Source: arm7.elf, 6240.1.000055e428937000.000055e428a65000.rw-.sdmp, arm7.elf, 6242.1.000055e428937000.000055e428a65000.rw-.sdmp, arm7.elf, 6244.1.000055e428937000.000055e428a65000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
Source: arm7.elf, 6240.1.000055e428937000.000055e428a65000.rw-.sdmp, arm7.elf, 6242.1.000055e428937000.000055e428a65000.rw-.sdmp, arm7.elf, 6244.1.000055e428937000.000055e428a65000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
Source: arm7.elf, 6240.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmp, arm7.elf, 6242.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmp, arm7.elf, 6244.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
Source: arm7.elf, 6240.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmp, arm7.elf, 6242.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmp, arm7.elf, 6244.1.00007ffccb27d000.00007ffccb29e000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/arm7.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/arm7.elf
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume AccessOS Credential Dumping11
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
Non-Standard Port
Exfiltration Over BluetoothNetwork Denial of Service
Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)Obfuscated Files or InformationSecurity Account ManagerQuery RegistrySMB/Windows Admin SharesData from Network Shared Drive1
Application Layer Protocol
Automated ExfiltrationData Encrypted for Impact
No configs have been found
Hide Legend

Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1594469 Sample: arm7.elf Startdate: 19/01/2025 Architecture: LINUX Score: 48 17 85.239.34.134, 48744, 48746, 5683 RAINBOW-HKRainbownetworklimitedHK Russian Federation 2->17 19 109.202.202.202, 80 INIT7CH Switzerland 2->19 21 2 other IPs or domains 2->21 23 Multi AV Scanner detection for submitted file 2->23 9 arm7.elf 2->9         started        signatures3 process4 process5 11 arm7.elf 9->11         started        process6 13 arm7.elf 11->13         started        process7 15 arm7.elf 13->15         started       

This section contains all screenshots as thumbnails, including those not shown in the slideshow.


windows-stand
SourceDetectionScannerLabelLink
arm7.elf21%ReversingLabsLinux.Backdoor.Mirai
No Antivirus matches
No Antivirus matches
No Antivirus matches

Download Network PCAP: filteredfull

No contacted domains info
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs
IPDomainCountryFlagASNASN NameMalicious
85.239.34.134
unknownRussian Federation
134121RAINBOW-HKRainbownetworklimitedHKfalse
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, ARM, EABI4 version 1 (SYSV), statically linked, stripped
                                                              Entropy (8bit):5.960849246967373
                                                              TrID:
                                                              • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                                              File name:arm7.elf
                                                              File size:54'788 bytes
                                                              MD5:cc61891380792d48887dccacbb305625
                                                              SHA1:f4940a01b156fcd9259ba8d8cac0f52fe0db6d05
                                                              SHA256:bf7cbe93717f80a1d2ca78c862286fa2b8c1d92dad18a86008653d1d4084fe10
                                                              SHA512:b62110823b898e1036e2fa958a4c34deece019bdf9f7136b680e76b70fe42a88f9faa3dab1df51cc6622835b89ecab267cefbb6db2c6d64af82acc51d2bfce6b
                                                              SSDEEP:1536:UUn4R2K524G5giw5pgQ5/265hEe51ZDA+bLJ8L0jBN9lR4iENqbs//D:MIK5FG5hw5yQ5+65qe5rLbLaL0hCNqbC
                                                              TLSH:7433295AFD809F21D4E422BAFE0E1149339357B8E3EF72129D115B25279B92B0FF6402
                                                              File Content Preview:.ELF..............(.........4...........4. ...(........p ... O.. O..................................8...8...............8...8`..8`.......1..............<...<`..<`..................Q.td..................................-...L..................@-.,@...0....S

                                                              ELF header

                                                              Class:ELF32
                                                              Data:2's complement, little endian
                                                              Version:1 (current)
                                                              Machine:ARM
                                                              Version Number:0x1
                                                              Type:EXEC (Executable file)
                                                              OS/ABI:UNIX - System V
                                                              ABI Version:0
                                                              Entry Point Address:0x8194
                                                              Flags:0x4000002
                                                              ELF Header Size:52
                                                              Program Header Offset:52
                                                              Program Header Size:32
                                                              Number of Program Headers:5
                                                              Section Header Offset:54148
                                                              Section Header Size:40
                                                              Number of Section Headers:16
                                                              Header String Table Index:15
                                                              NameTypeAddressOffsetSizeEntSizeFlagsFlags DescriptionLinkInfoAlign
                                                              NULL0x00x00x00x00x0000
                                                              .initPROGBITS0x80d40xd40x100x00x6AX004
                                                              .textPROGBITS0x80f00xf00xca100x00x6AX0016
                                                              .finiPROGBITS0x14b000xcb000x100x00x6AX004
                                                              .rodataPROGBITS0x14b100xcb100x3f80x00x2A004
                                                              .ARM.extabPROGBITS0x14f080xcf080x180x00x2A004
                                                              .ARM.exidxARM_EXIDX0x14f200xcf200x1180x00x82AL204
                                                              .eh_framePROGBITS0x160380xd0380x40x00x3WA004
                                                              .tbssNOBITS0x1603c0xd03c0x80x00x403WAT004
                                                              .init_arrayINIT_ARRAY0x1603c0xd03c0x40x00x3WA004
                                                              .fini_arrayFINI_ARRAY0x160400xd0400x40x00x3WA004
                                                              .jcrPROGBITS0x160440xd0440x40x00x3WA004
                                                              .gotPROGBITS0x160480xd0480xa80x40x3WA004
                                                              .dataPROGBITS0x160f00xd0f00x21c0x00x3WA004
                                                              .bssNOBITS0x1630c0xd30c0x2ee40x00x3WA004
                                                              .shstrtabSTRTAB0x00xd30c0x780x00x0001
                                                              TypeOffsetVirtual AddressPhysical AddressFile SizeMemory SizeEntropyFlagsFlags DescriptionAlignProg InterpreterSection Mappings
                                                              EXIDX0xcf200x14f200x14f200x1180x1184.40290x4R 0x4.ARM.exidx
                                                              LOAD0x00x80000x80000xd0380xd0385.98270x5R E0x1000.init .text .fini .rodata .ARM.extab .ARM.exidx
                                                              LOAD0xd0380x160380x160380x2d40x31b84.06310x6RW 0x1000.eh_frame .tbss .init_array .fini_array .jcr .got .data .bss
                                                              TLS0xd03c0x1603c0x1603c0x00x80.00000x4R 0x4.tbss
                                                              GNU_STACK0x00x00x00x00x00.00000x7RWE0x4

                                                              Download Network PCAP: filteredfull

                                                              • Total Packets: 16
                                                              • 5683 undefined
                                                              • 443 (HTTPS)
                                                              • 80 (HTTP)
                                                              TimestampSource PortDest PortSource IPDest IP
                                                              Jan 19, 2025 02:47:54.561525106 CET43928443192.168.2.2391.189.91.42
                                                              Jan 19, 2025 02:47:55.975815058 CET487445683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:47:55.981161118 CET56834874485.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:47:55.981223106 CET487445683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:47:59.936656952 CET42836443192.168.2.2391.189.91.43
                                                              Jan 19, 2025 02:48:00.704551935 CET4251680192.168.2.23109.202.202.202
                                                              Jan 19, 2025 02:48:16.062486887 CET43928443192.168.2.2391.189.91.42
                                                              Jan 19, 2025 02:48:26.301111937 CET42836443192.168.2.2391.189.91.43
                                                              Jan 19, 2025 02:48:30.396312952 CET4251680192.168.2.23109.202.202.202
                                                              Jan 19, 2025 02:48:56.033222914 CET487445683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:48:56.038957119 CET56834874485.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:48:56.255086899 CET56834874485.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:48:56.255647898 CET487445683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:48:56.260524035 CET56834874485.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:48:57.016541004 CET43928443192.168.2.2391.189.91.42
                                                              Jan 19, 2025 02:48:57.260277033 CET487465683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:48:57.440182924 CET56834874685.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:48:57.440340042 CET487465683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:48:57.440782070 CET487465683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:48:57.445566893 CET56834874685.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:49:57.484097958 CET487465683192.168.2.2385.239.34.134
                                                              Jan 19, 2025 02:49:57.492872000 CET56834874685.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:49:57.704035044 CET56834874685.239.34.134192.168.2.23
                                                              Jan 19, 2025 02:49:57.704365015 CET487465683192.168.2.2385.239.34.134

                                                              System Behavior

                                                              Start time (UTC):01:47:54
                                                              Start date (UTC):19/01/2025
                                                              Path:/tmp/arm7.elf
                                                              Arguments:/tmp/arm7.elf
                                                              File size:4956856 bytes
                                                              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                              Start time (UTC):01:47:54
                                                              Start date (UTC):19/01/2025
                                                              Path:/tmp/arm7.elf
                                                              Arguments:-
                                                              File size:4956856 bytes
                                                              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                              Start time (UTC):01:47:54
                                                              Start date (UTC):19/01/2025
                                                              Path:/tmp/arm7.elf
                                                              Arguments:-
                                                              File size:4956856 bytes
                                                              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1

                                                              Start time (UTC):01:47:54
                                                              Start date (UTC):19/01/2025
                                                              Path:/tmp/arm7.elf
                                                              Arguments:-
                                                              File size:4956856 bytes
                                                              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1