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Linux Analysis Report
gigab.x86.elf

Overview

General Information

Sample name:gigab.x86.elf
Analysis ID:1646379
MD5:98f0c938d99387f89e56fe8b5aef47a4
SHA1:854d3b3383b5cd0125ac131716d6ef61c62f9764
SHA256:db58ed60a365d67c97a826d88ea1859cc7875eeab0955c59d8d518a06acc237d
Tags:elfuser-abuse_ch
Infos:
Errors
  • No process behavior to analyse as no analysis process or sample was found

Detection

Score:48
Range:0 - 100

Signatures

Malicious sample detected (through community Yara rule)
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Yara signature match

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1646379
Start date and time:2025-03-24 00:07:35 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 31s
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.x86.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
  • No process behavior to analyse as no analysis process or sample was found
Command:/tmp/gigab.x86.elf
PID:6241
Exit Code:139
Exit Code Info:SIGSEGV (11) Segmentation fault invalid memory reference
Killed:False
Standard Output:

Standard Error:
SourceRuleDescriptionAuthorStrings
gigab.x86.elfLinux_Trojan_Gafgyt_a6a2adb9unknownunknown
  • 0x8a6:$a: CC 01 C2 89 55 B4 8B 45 B4 C9 C3 55 48 89 E5 48 81 EC 90 00
gigab.x86.elfLinux_Trojan_Gafgyt_f3d83a74unknownunknown
  • 0x7cc:$a: DC 00 74 1B 83 7D E0 0A 75 15 83 7D E4 00 79 0F C7 45 C8 01 00
gigab.x86.elfLinux_Trojan_Gafgyt_09c3070eunknownunknown
  • 0xfa8:$a: 48 C1 E8 06 48 89 C6 48 8B 94 C5 50 FF FF FF 8B 8D 2C FF FF FF 83
  • 0x105d:$a: 48 C1 E8 06 48 89 C6 48 8B 94 C5 50 FF FF FF 8B 8D 2C FF FF FF 83
  • 0x129e:$a: 48 C1 E8 06 48 89 C6 48 8B 94 C5 50 FF FF FF 8B 8D 2C FF FF FF 83
gigab.x86.elfLinux_Trojan_Gafgyt_46eec778unknownunknown
  • 0x1635:$a: C0 01 45 F8 48 83 45 E8 02 83 6D C8 02 83 7D C8 01 7F E4 83 7D
gigab.x86.elfLinux_Trojan_Gafgyt_dd0d6173unknownunknown
  • 0x174d:$a: 55 F8 8B 45 F0 89 42 0C 48 8B 55 F8 8B 45 F4 89 42 10 C9 C3 55 48
Click to see the 4 entries
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results
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: unknownNetwork traffic detected: HTTP traffic on port 43928 -> 443
Source: unknownNetwork traffic detected: HTTP traffic on port 42836 -> 443

System Summary

barindex
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_a6a2adb9 Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_f3d83a74 Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_09c3070e Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_46eec778 Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_dd0d6173 Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_779e142f Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_cf84c9f2 Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_e4a1982b Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_862c4e0e Author: unknown
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_a6a2adb9 reference_sample = 275cbd5d3b3d8c521649b95122d90d1ca9b7ae1958b721bdc158aaa2d31d49df, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = cdd0bb9ce40a000bb86b0c76616fe71fb7dbb87a044ddd778b7a07fdf804b877, id = a6a2adb9-9d54-42d4-abed-5b30d8062e97, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_f3d83a74 reference_sample = 275cbd5d3b3d8c521649b95122d90d1ca9b7ae1958b721bdc158aaa2d31d49df, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 1c5df68501b688905484ed47dc588306828aa7c114644428e22e5021bb39bd4a, id = f3d83a74-2888-435a-9a3c-b7de25084e9a, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_09c3070e reference_sample = 275cbd5d3b3d8c521649b95122d90d1ca9b7ae1958b721bdc158aaa2d31d49df, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 84fad96b60b297736c149e14de12671ff778bff427ab7684df2c541a6f6d7e7d, id = 09c3070e-4b71-45a0-aa62-0cc6e496644a, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_46eec778 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 = 2602371a40171870b1cf024f262e95a2853de53de39c3a6cd3de811e81dd3518, id = 46eec778-7342-4ef7-adac-35bc0cdb9867, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_dd0d6173 reference_sample = c5a317d0d8470814ff343ce78ad2428ebb3f036763fcf703a589b6c4d33a3ec6, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 5e2cb111c2b712951b71166111d339724b4f52b93f90cb474f1e67598212605f, id = dd0d6173-b863-45cf-9348-3375a4e624cf, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_779e142f reference_sample = 275cbd5d3b3d8c521649b95122d90d1ca9b7ae1958b721bdc158aaa2d31d49df, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 83377b6fa77fda4544c409487d2d2c1ddcef8f7d4120f49a18888c7536f3969f, id = 779e142f-b867-46e6-b1fb-9105976f42fd, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_cf84c9f2 reference_sample = 275cbd5d3b3d8c521649b95122d90d1ca9b7ae1958b721bdc158aaa2d31d49df, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = bb766b356c3e8706740e3bb9b4a7171d8eb5137e09fc7ab6952412fa55e2dcfc, id = cf84c9f2-7435-4faf-8c5f-d14945ffad7a, last_modified = 2021-09-16
Source: gigab.x86.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_e4a1982b os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d9f852c28433128b0fd330bee35f7bd4aada5226e9ca865fe5cd8cca52b2a622, id = e4a1982b-928a-4da5-b497-cedc1d26e845, last_modified = 2021-09-16
Source: gigab.x86.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: classification engineClassification label: mal48.linELF@0/0@0/0
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
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
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1646379 Sample: gigab.x86.elf Startdate: 24/03/2025 Architecture: LINUX Score: 48 6 109.202.202.202, 80 INIT7CH Switzerland 2->6 8 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->8 10 91.189.91.43, 443 CANONICAL-ASGB United Kingdom 2->10 12 Malicious sample detected (through community Yara rule) 2->12 signatures3
SourceDetectionScannerLabelLink
gigab.x86.elf6%ReversingLabs
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
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 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, missing section headers at 76920
                                          Entropy (8bit):5.67999982642304
                                          TrID:
                                          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                          File name:gigab.x86.elf
                                          File size:6'975 bytes
                                          MD5:98f0c938d99387f89e56fe8b5aef47a4
                                          SHA1:854d3b3383b5cd0125ac131716d6ef61c62f9764
                                          SHA256:db58ed60a365d67c97a826d88ea1859cc7875eeab0955c59d8d518a06acc237d
                                          SHA512:920dfbb320a058958d99b043b75a2f93fe15e175feaa8a56a3333e3ccf4658d4fad5b3f3beedc0724531c7b0650d920a98b44433fc99411ebbab566dbe247095
                                          SSDEEP:96:GwQJJ76WGjOBam/mdI0/J5YsccedgVqA+nVyqA+43qOwmVyqA+HpBSnx0E7/lIpu:GHBGjC9em2ed0+k+aa+HzEb+0vSq
                                          TLSH:11E1933F8272D029C01720B07CEBC5D3B950B67407B1B18677C06E197BB3621ADA9783
                                          File Content Preview:.ELF..............>.......@.....@.......x)..........@.8...@.......................@.......@....................... .......................`.......`......)................ .....Q.td....................................................H...._....z...H........

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Mar 24, 2025 00:08:21.005747080 CET43928443192.168.2.2391.189.91.42
                                          Mar 24, 2025 00:08:26.636894941 CET42836443192.168.2.2391.189.91.43
                                          Mar 24, 2025 00:08:27.916796923 CET4251680192.168.2.23109.202.202.202
                                          Mar 24, 2025 00:08:40.970932007 CET43928443192.168.2.2391.189.91.42
                                          Mar 24, 2025 00:08:53.257292032 CET42836443192.168.2.2391.189.91.43
                                          Mar 24, 2025 00:08:57.352786064 CET4251680192.168.2.23109.202.202.202
                                          Mar 24, 2025 00:09:21.925450087 CET43928443192.168.2.2391.189.91.42

                                          System Behavior