Joe Sandbox Cloud Basic Analysis Report
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Linux Analysis Report
gigab.i686.elf

Overview

General Information

Sample name:gigab.i686.elf
Analysis ID:1646466
MD5:f2837a9e282c5d88892566d535ccf67d
SHA1:1f78556a2144651106b89bb3966da228144fc530
SHA256:ba5576afa931b157691a9d1eaf9cd7cf2bc933613d369a2ec223e29e221298e7
Tags:elfuser-abuse_ch
Infos:

Detection

Score:56
Range:0 - 100

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara signature match

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

General Information

Joe Sandbox version:42.0.0 Malachite
Analysis ID:1646466
Start date and time:2025-03-24 02:48:18 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 18s
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:gigab.i686.elf
Detection:MAL
Classification:mal56.linELF@0/0@2/0

Runtime Messages

Command:/tmp/gigab.i686.elf
PID:5405
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:

Process Tree

  • system is lnxubuntu20
  • gigab.i686.elf (PID: 5405, Parent: 5328, MD5: f2837a9e282c5d88892566d535ccf67d) Arguments: /tmp/gigab.i686.elf
  • cleanup

Yara Signatures

Initial Sample

SourceRuleDescriptionAuthorStrings
gigab.i686.elfLinux_Trojan_Gafgyt_e6d75e6funknownunknown
  • 0x7f2e:$a: 00 00 00 CD 80 C3 8B 54 24 04 8B 4C 24 08 87 D3 B8 5B 00 00 00
gigab.i686.elfLinux_Trojan_Gafgyt_862c4e0eunknownunknown
  • 0x1427:$a: 02 89 45 F8 8B 45 F8 C1 E8 10 85 C0 75 E6 8B 45 F8 F7 D0 0F

Memory Dumps

SourceRuleDescriptionAuthorStrings
5405.1.0000000008048000.0000000008057000.r-x.sdmpLinux_Trojan_Gafgyt_e6d75e6funknownunknown
  • 0x7f2e:$a: 00 00 00 CD 80 C3 8B 54 24 04 8B 4C 24 08 87 D3 B8 5B 00 00 00
5405.1.0000000008048000.0000000008057000.r-x.sdmpLinux_Trojan_Gafgyt_862c4e0eunknownunknown
  • 0x1427:$a: 02 89 45 F8 8B 45 F8 C1 E8 10 85 C0 75 E6 8B 45 F8 F7 D0 0F

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

  • • AV Detection
  • • Networking
  • • System Summary

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: gigab.i686.elfReversingLabs: Detection: 36%
Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com

System Summary

barindex
Source: gigab.i686.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_e6d75e6f Author: unknown
Source: gigab.i686.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_862c4e0e Author: unknown
Source: 5405.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_e6d75e6f Author: unknown
Source: 5405.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_862c4e0e Author: unknown
Source: gigab.i686.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, last_modified = 2021-09-16
Source: gigab.i686.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_862c4e0e reference_sample = 9526277255a8d632355bfe54d53154c9c54a4ab75e3ba24333c73ad0ed7cadb1, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 2a6b4f8d8fb4703ed26bdcfbbb5c539dc451c8b90649bee80015c164eae4c281, id = 862c4e0e-83a4-458b-8c00-f2f3cf0bf9db, last_modified = 2021-09-16
Source: 5405.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, last_modified = 2021-09-16
Source: 5405.1.0000000008048000.0000000008057000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_862c4e0e reference_sample = 9526277255a8d632355bfe54d53154c9c54a4ab75e3ba24333c73ad0ed7cadb1, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 2a6b4f8d8fb4703ed26bdcfbbb5c539dc451c8b90649bee80015c164eae4c281, id = 862c4e0e-83a4-458b-8c00-f2f3cf0bf9db, last_modified = 2021-09-16
Source: classification engineClassification label: mal56.linELF@0/0@2/0

Mitre Att&ck Matrix

ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath InterceptionDirect Volume AccessOS Credential DumpingSystem Service DiscoveryRemote ServicesData from Local System1
Non-Application Layer Protocol		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

Malware Configuration

⊘No configs have been found

Behavior Graph

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Legend:

  • Process
  • Signature
  • Created File
  • DNS/IP Info
  • Is Dropped
  • Number of created Files
  • Is malicious
  • Internet
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1646466 Sample: gigab.i686.elf Startdate: 24/03/2025 Architecture: LINUX Score: 56 8 daisy.ubuntu.com 2->8 10 Malicious sample detected (through community Yara rule) 2->10 12 Multi AV Scanner detection for submitted file 2->12 6 gigab.i686.elf 2->6         started        signatures3 process4

Screenshots

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Thumbnails

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windows-stand

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

SourceDetectionScannerLabelLink
gigab.i686.elf36%ReversingLabsLinux.Backdoor.DarkDDoSer

Dropped Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

⊘No Antivirus matches

Domains and IPs

Download Network PCAP: filtered – full

Contacted Domains

NameIPActiveMaliciousAntivirus DetectionReputation
daisy.ubuntu.com
162.213.35.25
truefalse
    		high

    World Map of Contacted IPs

    ⊘No contacted IP infos

    Joe Sandbox View / Context

    IPs

    ⊘No context

    Domains

    MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
    daisy.ubuntu.comresgod.spc.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    resgod.mpsl.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    resgod.arm6.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    gigab.mips.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    gigab.arm6.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24
    sh4.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    mips.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.25
    i686.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    spc.elfGet hashmaliciousMiraiBrowse
    • 162.213.35.24
    owari.i686.elfGet hashmaliciousUnknownBrowse
    • 162.213.35.24

    ASNs

    ⊘No context

    JA3 Fingerprints

    ⊘No context

    Dropped Files

    ⊘No context

    Created / dropped Files

    ⊘No created / dropped files found

    Static File Info

    General

    File type:
    Entropy (8bit):6.310722877691134
    TrID:
    • ELF Executable and Linkable format (Linux) (4029/14) 50.16%
    • ELF Executable and Linkable format (generic) (4004/1) 49.84%
    File name:gigab.i686.elf
    File size:63'448 bytes
    MD5:f2837a9e282c5d88892566d535ccf67d
    SHA1:1f78556a2144651106b89bb3966da228144fc530
    SHA256:ba5576afa931b157691a9d1eaf9cd7cf2bc933613d369a2ec223e29e221298e7
    SHA512:511c1a24fe4d34a7f3f0843c8b06c638b68f8618909024b036e85f6ec39c00d9783cbd187103ef0592427d218b6937678c022783520e8a3edcccb5d147d39b18
    SSDEEP:1536:5fltsQYtCZPy/tAY07DWrcUCfdePtNZC:9oQYtC4/6Y07Dvpde1NZ
    TLSH:FC535D85F383C1F6E80709730067A36F5337F62A4465DA5AE39D6D28F917820664B3AA
    File Content Preview:.ELF........................4...d.......4. ...(.....................t...t....................p...p.......y..............p...pv..pv..................Q.td............................U..S............h........[]...$.............U......=.x...t..1.....v......v.

    Network Behavior

    Download Network PCAP: filtered – full

    TimestampSource PortDest PortSource IPDest IP
    Mar 24, 2025 02:49:05.486833096 CET4721253192.168.2.138.8.8.8
    Mar 24, 2025 02:49:05.486881971 CET4187453192.168.2.138.8.8.8
    Mar 24, 2025 02:49:05.576921940 CET53472128.8.8.8192.168.2.13
    Mar 24, 2025 02:49:05.577594042 CET53418748.8.8.8192.168.2.13

    DNS Queries

    TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
    Mar 24, 2025 02:49:05.486833096 CET192.168.2.138.8.8.80xf477Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
    Mar 24, 2025 02:49:05.486881971 CET192.168.2.138.8.8.80xb2e3Standard query (0)daisy.ubuntu.com28IN (0x0001)false

    DNS Answers

    TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
    Mar 24, 2025 02:49:05.576921940 CET8.8.8.8192.168.2.130xf477No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
    Mar 24, 2025 02:49:05.576921940 CET8.8.8.8192.168.2.130xf477No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

    System Behavior

    General

    Start time (UTC):01:49:04
    Start date (UTC):24/03/2025
    Path:/tmp/gigab.i686.elf
    Arguments:/tmp/gigab.i686.elf
    File size:63448 bytes
    MD5 hash:f2837a9e282c5d88892566d535ccf67d