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Linux Analysis Report
a-r.m-6.Sakura.elf

Overview

General Information

Sample name:a-r.m-6.Sakura.elf
Analysis ID:1633068
MD5:425fab3d1076fc2e2c7a2fac555bd1a2
SHA1:cacd4c05abc4653c31e0a251e38bc144c7bb98c5
SHA256:b8879c45463335061316f6ca8d318e0405ac5d099e973ba9fa92d17a6a618cd4
Tags:elfuser-abuse_ch
Infos:

Detection

Gafgyt, Mirai
Score:88
Range:0 - 100

Signatures

Antivirus / Scanner detection for submitted sample
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Gafgyt
Yara detected Mirai
Sample contains strings that are user agent strings indicative of HTTP manipulation
Uses the "uname" system call to query kernel version information (possible evasion)
Yara signature match

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious
Joe Sandbox version:42.0.0 Malachite
Analysis ID:1633068
Start date and time:2025-03-09 18:12:20 +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:a-r.m-6.Sakura.elf
Detection:MAL
Classification:mal88.troj.linELF@0/0@2/0
Command:/tmp/a-r.m-6.Sakura.elf
PID:5492
Exit Code:132
Exit Code Info:SIGILL (4) Illegal Instruction
Killed:False
Standard Output:

Standard Error:qemu: uncaught target signal 4 (Illegal instruction) - core dumped
  • system is lnxubuntu20
  • a-r.m-6.Sakura.elf (PID: 5492, Parent: 5410, MD5: 5ebfcae4fe2471fcc5695c2394773ff1) Arguments: /tmp/a-r.m-6.Sakura.elf
  • cleanup
NameDescriptionAttributionBlogpost URLsLink
Bashlite, GafgytBashlite is a malware family which infects Linux systems in order to launch distributed denial-of-service attacks (DDoS). Originally it was also known under the name Bashdoor, but this term now refers to the exploit method used by the malware. It has been used to launch attacks of up to 400 Gbps.No Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/elf.bashlite
NameDescriptionAttributionBlogpost URLsLink
MiraiMirai is one of the first significant botnets targeting exposed networking devices running Linux. Found in August 2016 by MalwareMustDie, its name means "future" in Japanese. Nowadays it targets a wide range of networked embedded devices such as IP cameras, home routers (many vendors involved), and other IoT devices. Since the source code was published on "Hack Forums" many variants of the Mirai family appeared, infecting mostly home networks all around the world.No Attributionhttps://malpedia.caad.fkie.fraunhofer.de/details/elf.mirai
SourceRuleDescriptionAuthorStrings
a-r.m-6.Sakura.elfJoeSecurity_GafgytYara detected GafgytJoe Security
    a-r.m-6.Sakura.elfJoeSecurity_Mirai_8Yara detected MiraiJoe Security
      a-r.m-6.Sakura.elfLinux_Trojan_Gafgyt_28a2fe0cunknownunknown
      • 0x128bd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x128d1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x128e5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x128f9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x1290d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12921:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12935:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12949:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x1295d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12971:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12985:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12999:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x129ad:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x129c1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x129d5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x129e9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x129fd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12a11:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12a25:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12a39:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      • 0x12a4d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
      SourceRuleDescriptionAuthorStrings
      5492.1.00007f6920017000.00007f692002c000.r-x.sdmpJoeSecurity_Mirai_8Yara detected MiraiJoe Security
        5492.1.00007f6920017000.00007f692002c000.r-x.sdmpLinux_Trojan_Gafgyt_28a2fe0cunknownunknown
        • 0x128bd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x128d1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x128e5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x128f9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x1290d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12921:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12935:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12949:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x1295d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12971:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12985:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12999:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x129ad:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x129c1:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x129d5:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x129e9:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x129fd:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12a11:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12a25:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12a39:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        • 0x12a4d:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
        Process Memory Space: a-r.m-6.Sakura.elf PID: 5492JoeSecurity_Mirai_8Yara detected MiraiJoe Security
          Process Memory Space: a-r.m-6.Sakura.elf PID: 5492Linux_Trojan_Gafgyt_28a2fe0cunknownunknown
          • 0x501e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5032:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5046:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x505a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x506e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5082:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5096:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x50aa:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x50be:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x50d2:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x50e6:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x50fa:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x510e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5122:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5136:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x514a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x515e:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5172:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x5186:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x519a:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          • 0x51ae:$a: 2F 78 33 38 2F 78 46 4A 2F 78 39 33 2F 78 49 44 2F 78 39 41 2F 78 33 38 2F 78 46 4A 2F
          No Suricata rule has matched

          Click to jump to signature section

          Show All Signature Results

          AV Detection

          barindex
          Source: a-r.m-6.Sakura.elfAvira: detected
          Source: a-r.m-6.Sakura.elfMalware Configuration Extractor: Gafgyt {"C2 url": "205.185.115.242:12345"}
          Source: a-r.m-6.Sakura.elfVirustotal: Detection: 33%Perma Link
          Source: a-r.m-6.Sakura.elfReversingLabs: Detection: 36%
          Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
          Source: unknownUDP traffic detected without corresponding DNS query: 1.1.1.1
          Source: global trafficDNS traffic detected: DNS query: daisy.ubuntu.com

          System Summary

          barindex
          Source: a-r.m-6.Sakura.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
          Source: 5492.1.00007f6920017000.00007f692002c000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
          Source: Process Memory Space: a-r.m-6.Sakura.elf PID: 5492, type: MEMORYSTRMatched rule: Linux_Trojan_Gafgyt_28a2fe0c Author: unknown
          Source: a-r.m-6.Sakura.elf, type: SAMPLEMatched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
          Source: 5492.1.00007f6920017000.00007f692002c000.r-x.sdmp, type: MEMORYMatched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
          Source: Process Memory Space: a-r.m-6.Sakura.elf PID: 5492, type: MEMORYSTRMatched rule: Linux_Trojan_Gafgyt_28a2fe0c os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = a2c6beaec18ca876e8487c11bcc7a29279669588aacb7d3027d8d8df8f5bcead, id = 28a2fe0c-eed5-4c79-81e6-3b11b73a4ebd, last_modified = 2021-09-16
          Source: classification engineClassification label: mal88.troj.linELF@0/0@2/0
          Source: /tmp/a-r.m-6.Sakura.elf (PID: 5492)Queries kernel information via 'uname': Jump to behavior
          Source: a-r.m-6.Sakura.elf, 5492.1.000055c3a2b62000.000055c3a2c90000.rw-.sdmpBinary or memory string: U!/etc/qemu-binfmt/arm
          Source: a-r.m-6.Sakura.elf, 5492.1.00007ffd4b5c8000.00007ffd4b5e9000.rw-.sdmpBinary or memory string: x86_64/usr/bin/qemu-arm/tmp/a-r.m-6.Sakura.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/a-r.m-6.Sakura.elf
          Source: a-r.m-6.Sakura.elf, 5492.1.000055c3a2b62000.000055c3a2c90000.rw-.sdmpBinary or memory string: /etc/qemu-binfmt/arm
          Source: a-r.m-6.Sakura.elf, 5492.1.00007ffd4b5c8000.00007ffd4b5e9000.rw-.sdmpBinary or memory string: /usr/bin/qemu-arm
          Source: a-r.m-6.Sakura.elf, 5492.1.00007ffd4b5c8000.00007ffd4b5e9000.rw-.sdmpBinary or memory string: qemu: uncaught target signal 4 (Illegal instruction) - core dumped

          Stealing of Sensitive Information

          barindex
          Source: Yara matchFile source: a-r.m-6.Sakura.elf, type: SAMPLE
          Source: Yara matchFile source: a-r.m-6.Sakura.elf, type: SAMPLE
          Source: Yara matchFile source: 5492.1.00007f6920017000.00007f692002c000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: Process Memory Space: a-r.m-6.Sakura.elf PID: 5492, type: MEMORYSTR
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36
          Source: Initial sampleUser agent string found: Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

          Remote Access Functionality

          barindex
          Source: Yara matchFile source: a-r.m-6.Sakura.elf, type: SAMPLE
          Source: Yara matchFile source: a-r.m-6.Sakura.elf, type: SAMPLE
          Source: Yara matchFile source: 5492.1.00007f6920017000.00007f692002c000.r-x.sdmp, type: MEMORY
          Source: Yara matchFile source: Process Memory Space: a-r.m-6.Sakura.elf PID: 5492, type: MEMORYSTR
          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
          Data Obfuscation
          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-Application Layer Protocol
          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
          {
            "C2 url": "205.185.115.242:12345"
          }
          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: 1633068 Sample: a-r.m-6.Sakura.elf Startdate: 09/03/2025 Architecture: LINUX Score: 88 8 daisy.ubuntu.com 2->8 10 Found malware configuration 2->10 12 Malicious sample detected (through community Yara rule) 2->12 14 Antivirus / Scanner detection for submitted sample 2->14 16 3 other signatures 2->16 6 a-r.m-6.Sakura.elf 2->6         started        signatures3 process4

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


          windows-stand
          SourceDetectionScannerLabelLink
          a-r.m-6.Sakura.elf33%VirustotalBrowse
          a-r.m-6.Sakura.elf37%ReversingLabsLinux.Trojan.Gafgyt
          a-r.m-6.Sakura.elf100%AviraLINUX/Gafgyt.opnd
          No Antivirus matches
          No Antivirus matches
          No Antivirus matches

          Download Network PCAP: filteredfull

          NameIPActiveMaliciousAntivirus DetectionReputation
          daisy.ubuntu.com
          162.213.35.25
          truefalse
            high
            NameMaliciousAntivirus DetectionReputation
            205.185.115.242:12345false
              high
              No contacted IP infos
              No context
              MatchAssociated Sample Name / URLSHA 256DetectionThreat NameLinkContext
              daisy.ubuntu.comgif.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.25
              .i.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.25
              apep.arm.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.24
              jaws.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.25
              SecuriteInfo.com.Linux.Siggen.9999.21334.3171.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.24
              SecuriteInfo.com.Linux.Siggen.9999.31985.32179.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.24
              apep.arm5.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.24
              SecuriteInfo.com.Linux.Siggen.9999.9757.27365.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.25
              apep.mpsl.elfGet hashmaliciousUnknownBrowse
              • 162.213.35.24
              No context
              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):6.0532821678529825
              TrID:
              • ELF Executable and Linkable format (generic) (4004/1) 100.00%
              File name:a-r.m-6.Sakura.elf
              File size:121'691 bytes
              MD5:425fab3d1076fc2e2c7a2fac555bd1a2
              SHA1:cacd4c05abc4653c31e0a251e38bc144c7bb98c5
              SHA256:b8879c45463335061316f6ca8d318e0405ac5d099e973ba9fa92d17a6a618cd4
              SHA512:85922eb15be54a98e112a73de4a92b70bdd12703374d29383bde4913633edf4ec7cf2f88282976bc374f5b8a2bbce0ff039974159b0883d188e33ccec843c4f5
              SSDEEP:3072:mAsPkskw70cR7eVBMVWJhDd03g+mTQOY5NX3cn:VsPkskwdZeVFJhD1+mTQOY5R3cn
              TLSH:CEC32A05D4504727C2D3237AE79E866D37325BA897DB33215A34BFB41BC2F892E39920
              File Content Preview:.ELF..............(.........4....b......4. ...(........p.F.......................................... F.. F.............. F.. F.. F.......i..........Q.td..................................-...L..................G.F.G.F.G.F.G.F G.F(G.F0G.F8G.F@G.FHG.FPG.FXG.

              Download Network PCAP: filteredfull

              TimestampSource PortDest PortSource IPDest IP
              Mar 9, 2025 18:13:13.514609098 CET3511053192.168.2.141.1.1.1
              Mar 9, 2025 18:13:13.514609098 CET4323453192.168.2.141.1.1.1
              Mar 9, 2025 18:13:13.522582054 CET53432341.1.1.1192.168.2.14
              Mar 9, 2025 18:13:13.522644997 CET53351101.1.1.1192.168.2.14
              TimestampSource IPDest IPTrans IDOP CodeNameTypeClassDNS over HTTPS
              Mar 9, 2025 18:13:13.514609098 CET192.168.2.141.1.1.10x7bb0Standard query (0)daisy.ubuntu.comA (IP address)IN (0x0001)false
              Mar 9, 2025 18:13:13.514609098 CET192.168.2.141.1.1.10xb925Standard query (0)daisy.ubuntu.com28IN (0x0001)false
              TimestampSource IPDest IPTrans IDReply CodeNameCNameAddressTypeClassDNS over HTTPS
              Mar 9, 2025 18:13:13.522644997 CET1.1.1.1192.168.2.140x7bb0No error (0)daisy.ubuntu.com162.213.35.25A (IP address)IN (0x0001)false
              Mar 9, 2025 18:13:13.522644997 CET1.1.1.1192.168.2.140x7bb0No error (0)daisy.ubuntu.com162.213.35.24A (IP address)IN (0x0001)false

              System Behavior

              Start time (UTC):17:13:11
              Start date (UTC):09/03/2025
              Path:/tmp/a-r.m-6.Sakura.elf
              Arguments:/tmp/a-r.m-6.Sakura.elf
              File size:4956856 bytes
              MD5 hash:5ebfcae4fe2471fcc5695c2394773ff1