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Linux Analysis Report
gigab.sh4.elf

Overview

General Information

Sample name:gigab.sh4.elf
Analysis ID:1646459
MD5:3ae4a67fd71dda2c1fe2c1f37b3a9653
SHA1:c3e36e8e8220e1816f8cbb6f3c9148fd1aeed031
SHA256:cfc69d3b906d9a164fa4fbf17eab76309e481d67ac7c150fda7787897332a1e1
Tags:elfuser-abuse_ch
Infos:

Detection

Score:48
Range:0 - 100

Signatures

Multi AV Scanner detection for submitted file
Executes the "rm" command used to delete files or directories
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:1646459
Start date and time:2025-03-24 02:50:34 +01:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 4m 38s
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.sh4.elf
Detection:MAL
Classification:mal48.linELF@0/0@0/0
Command:/tmp/gigab.sh4.elf
PID:6257
Exit Code:135
Exit Code Info:
Killed:False
Standard Output:

Standard Error:
  • system is lnxubuntu20
  • dash New Fork (PID: 6239, Parent: 4333)
  • rm (PID: 6239, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEw
  • dash New Fork (PID: 6240, Parent: 4333)
  • cat (PID: 6240, Parent: 4333, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.EVOLypNr5o
  • dash New Fork (PID: 6241, Parent: 4333)
  • head (PID: 6241, Parent: 4333, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10
  • dash New Fork (PID: 6242, Parent: 4333)
  • tr (PID: 6242, Parent: 4333, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037
  • dash New Fork (PID: 6243, Parent: 4333)
  • cut (PID: 6243, Parent: 4333, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80
  • dash New Fork (PID: 6244, Parent: 4333)
  • cat (PID: 6244, Parent: 4333, MD5: 7e9d213e404ad3bb82e4ebb2e1f2c1b3) Arguments: cat /tmp/tmp.EVOLypNr5o
  • dash New Fork (PID: 6245, Parent: 4333)
  • head (PID: 6245, Parent: 4333, MD5: fd96a67145172477dd57131396fc9608) Arguments: head -n 10
  • dash New Fork (PID: 6246, Parent: 4333)
  • tr (PID: 6246, Parent: 4333, MD5: fbd1402dd9f72d8ebfff00ce7c3a7bb5) Arguments: tr -d \\000-\\011\\013\\014\\016-\\037
  • dash New Fork (PID: 6247, Parent: 4333)
  • cut (PID: 6247, Parent: 4333, MD5: d8ed0ea8f22c0de0f8692d4d9f1759d3) Arguments: cut -c -80
  • dash New Fork (PID: 6248, Parent: 4333)
  • rm (PID: 6248, Parent: 4333, MD5: aa2b5496fdbfd88e38791ab81f90b95b) Arguments: rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEw
  • gigab.sh4.elf (PID: 6257, Parent: 6171, MD5: 8943e5f8f8c280467b4472c15ae93ba9) Arguments: /tmp/gigab.sh4.elf
  • cleanup
No yara matches
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

AV Detection

barindex
Source: gigab.sh4.elfReversingLabs: Detection: 22%
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
Source: classification engineClassification label: mal48.linELF@0/0@0/0
Source: /usr/bin/dash (PID: 6239)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEwJump to behavior
Source: /usr/bin/dash (PID: 6248)Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEwJump to behavior
Source: /tmp/gigab.sh4.elf (PID: 6257)Queries kernel information via 'uname': Jump to behavior
Source: gigab.sh4.elf, 6257.1.00007fffa90d9000.00007fffa90fa000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-sh4/tmp/gigab.sh4.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/gigab.sh4.elf
Source: gigab.sh4.elf, 6257.1.00007fffa90d9000.00007fffa90fa000.rw-.sdmpBinary or memory string: /usr/bin/qemu-sh4
Source: gigab.sh4.elf, 6257.1.000055da653d0000.000055da65412000.rw-.sdmpBinary or memory string: U5!/etc/qemu-binfmt/sh4
Source: gigab.sh4.elf, 6257.1.000055da653d0000.000055da65412000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/sh4
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management InstrumentationPath InterceptionPath Interception1
File Deletion
OS 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
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: 1646459 Sample: gigab.sh4.elf Startdate: 24/03/2025 Architecture: LINUX Score: 48 14 109.202.202.202, 80 INIT7CH Switzerland 2->14 16 91.189.91.42, 443 CANONICAL-ASGB United Kingdom 2->16 18 91.189.91.43, 443 CANONICAL-ASGB United Kingdom 2->18 20 Multi AV Scanner detection for submitted file 2->20 6 dash rm gigab.sh4.elf 2->6         started        8 dash rm 2->8         started        10 dash cut 2->10         started        12 7 other processes 2->12 signatures3 process4
SourceDetectionScannerLabelLink
gigab.sh4.elf22%ReversingLabsLinux.Trojan.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
109.202.202.202
unknownSwitzerland
13030INIT7CHfalse
91.189.91.43
unknownUnited Kingdom
41231CANONICAL-ASGBfalse
91.189.91.42
unknownUnited Kingdom
41231CANONICAL-ASGBfalse
MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
109.202.202.202kpLwzBouH4.elfGet hashmaliciousUnknownBrowse
  • ch.archive.ubuntu.com/ubuntu/pool/main/f/firefox/firefox_92.0%2bbuild3-0ubuntu0.20.04.1_amd64.deb
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                                          No context
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                                          CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
                                          • 91.189.91.42
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                                          CANONICAL-ASGBna.elfGet hashmaliciousPrometeiBrowse
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                                          • 91.189.91.42
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                                          • 91.189.91.42
                                          INIT7CHna.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
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                                          • 109.202.202.202
                                          arm5.elfGet hashmaliciousMiraiBrowse
                                          • 109.202.202.202
                                          gigab.x86.elfGet hashmaliciousUnknownBrowse
                                          • 109.202.202.202
                                          na.elfGet hashmaliciousPrometeiBrowse
                                          • 109.202.202.202
                                          No context
                                          No context
                                          No created / dropped files found
                                          File type:ELF 32-bit LSB executable, Renesas SH, version 1 (SYSV), statically linked, missing section headers at 75716
                                          Entropy (8bit):6.867883053369306
                                          TrID:
                                          • ELF Executable and Linkable format (generic) (4004/1) 100.00%
                                          File name:gigab.sh4.elf
                                          File size:41'728 bytes
                                          MD5:3ae4a67fd71dda2c1fe2c1f37b3a9653
                                          SHA1:c3e36e8e8220e1816f8cbb6f3c9148fd1aeed031
                                          SHA256:cfc69d3b906d9a164fa4fbf17eab76309e481d67ac7c150fda7787897332a1e1
                                          SHA512:4c328c2aa4ae177a440bf505b9fbd45e2b688b0dfb440dd7538bc05a38104c8f9f5fd05aaa0204a177206ccce6e7034d91e10a64ba57d61891bf2e751a4e97d8
                                          SSDEEP:768:AE/ykbKJp1YNeQgVDnJUgfd5ZpiQTlAVqVGgTNB+:NbKJp1Wwxf7iQhTGCB+
                                          TLSH:C1133BD999B1AEF7C014F4B57839587C071616116B1F2EE8247A83A0038FADAF54FF68
                                          File Content Preview:.ELF..............*.......@.4....%......4. ...(...............@...@...........................B...B......s..............$...$.B.$.B.................Q.td............................././"O.n........#.*@........#.*@.....o&O.n...l.............................

                                          Download Network PCAP: filteredfull

                                          • Total Packets: 7
                                          • 443 (HTTPS)
                                          • 80 (HTTP)
                                          TimestampSource PortDest PortSource IPDest IP
                                          Mar 24, 2025 02:51:22.352289915 CET43928443192.168.2.2391.189.91.42
                                          Mar 24, 2025 02:51:27.727544069 CET42836443192.168.2.2391.189.91.43
                                          Mar 24, 2025 02:51:29.519370079 CET4251680192.168.2.23109.202.202.202
                                          Mar 24, 2025 02:51:43.853374958 CET43928443192.168.2.2391.189.91.42
                                          Mar 24, 2025 02:51:54.091850996 CET42836443192.168.2.2391.189.91.43
                                          Mar 24, 2025 02:52:00.235064030 CET4251680192.168.2.23109.202.202.202
                                          Mar 24, 2025 02:52:24.807626009 CET43928443192.168.2.2391.189.91.42

                                          System Behavior

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/rm
                                          Arguments:rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEw
                                          File size:72056 bytes
                                          MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/cat
                                          Arguments:cat /tmp/tmp.EVOLypNr5o
                                          File size:43416 bytes
                                          MD5 hash:7e9d213e404ad3bb82e4ebb2e1f2c1b3

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/head
                                          Arguments:head -n 10
                                          File size:47480 bytes
                                          MD5 hash:fd96a67145172477dd57131396fc9608

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/tr
                                          Arguments:tr -d \\000-\\011\\013\\014\\016-\\037
                                          File size:51544 bytes
                                          MD5 hash:fbd1402dd9f72d8ebfff00ce7c3a7bb5

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:15
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/cut
                                          Arguments:cut -c -80
                                          File size:47480 bytes
                                          MD5 hash:d8ed0ea8f22c0de0f8692d4d9f1759d3

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/cat
                                          Arguments:cat /tmp/tmp.EVOLypNr5o
                                          File size:43416 bytes
                                          MD5 hash:7e9d213e404ad3bb82e4ebb2e1f2c1b3

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/head
                                          Arguments:head -n 10
                                          File size:47480 bytes
                                          MD5 hash:fd96a67145172477dd57131396fc9608

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/tr
                                          Arguments:tr -d \\000-\\011\\013\\014\\016-\\037
                                          File size:51544 bytes
                                          MD5 hash:fbd1402dd9f72d8ebfff00ce7c3a7bb5

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/cut
                                          Arguments:cut -c -80
                                          File size:47480 bytes
                                          MD5 hash:d8ed0ea8f22c0de0f8692d4d9f1759d3

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/dash
                                          Arguments:-
                                          File size:129816 bytes
                                          MD5 hash:1e6b1c887c59a315edb7eb9a315fc84c

                                          Start time (UTC):01:51:16
                                          Start date (UTC):24/03/2025
                                          Path:/usr/bin/rm
                                          Arguments:rm -f /tmp/tmp.EVOLypNr5o /tmp/tmp.B7HT5uUZll /tmp/tmp.YI8FnXBeEw
                                          File size:72056 bytes
                                          MD5 hash:aa2b5496fdbfd88e38791ab81f90b95b

                                          Start time (UTC):01:51:22
                                          Start date (UTC):24/03/2025
                                          Path:/tmp/gigab.sh4.elf
                                          Arguments:/tmp/gigab.sh4.elf
                                          File size:4139976 bytes
                                          MD5 hash:8943e5f8f8c280467b4472c15ae93ba9