Analysis
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max time kernel
104s -
max time network
131s -
platform
ubuntu-24.04_amd64 -
resource
ubuntu2404-amd64-20240523-en -
resource tags
arch:amd64arch:i386image:ubuntu2404-amd64-20240523-enkernel:6.8.0-31-genericlocale:en-usos:ubuntu-24.04-amd64system -
submitted
26/02/2025, 16:51
Behavioral task
behavioral1
Sample
skid.x86.elf
Resource
ubuntu2404-amd64-20240523-en
General
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Target
skid.x86.elf
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Size
98KB
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MD5
85f9548e1bd7afd130a1e2b851b41da8
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SHA1
75c285684ec3964eb9bf3f4122e48c38f0ae11b8
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SHA256
c8e23dad72cec959fc3a9fd530bf839ca04bb3f7e433364e5aabf62160ee4da9
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SHA512
3f072cbf2ce940eecccb22eecfded787fd29f7a0828c6732c679a1769399ca7611d2ea201cbf37994efa40b0a2136aba50c8d760ed1e4f283a64f173ba23a576
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SSDEEP
3072:62RuRkQT3v9EbYBo7sphanvn00Cmr5um2XFYZA0e:6ISVv9cgphanvn00Cmr5um2XFYZA0e
Malware Config
Extracted
gafgyt
185.224.0.18:1111
Signatures
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Detected Gafgyt variant 2 IoCs
resource yara_rule behavioral1/files/fstream-1.dat family_gafgyt behavioral1/files/fstream-4.dat family_gafgyt -
Gafgyt family
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Executes dropped EXE 44 IoCs
ioc pid Process /tmp/fileVckyP2 2830 skid.x86.elf /tmp/filet7Ouhu 2831 fileVckyP2 /tmp/fileBB2ytN 2832 filet7Ouhu /tmp/fileSC27kp 2833 fileBB2ytN /tmp/fileY51Jhz 2834 fileSC27kp /tmp/filecAFQnK 2835 fileY51Jhz /tmp/fileE7vJua 2848 filecAFQnK /tmp/fileepnzAc 2855 fileE7vJua /tmp/fileVwpRk0 2856 fileepnzAc /tmp/fileYx4MTJ 2857 fileVwpRk0 /tmp/fileqbAqp9 2858 fileYx4MTJ /tmp/fileMqIeU9 2862 fileqbAqp9 /tmp/fileRvxPcA 2863 fileMqIeU9 /tmp/filekj6LwO 2864 fileRvxPcA /tmp/fileXKnMOc 2865 filekj6LwO /tmp/fileFUWXG9 2866 fileXKnMOc /tmp/fileLU6SSK 2867 fileFUWXG9 /tmp/fileDhM2xj 2868 fileLU6SSK /tmp/filetN2tg2 2869 fileDhM2xj /tmp/filemDNmyQ 2870 filetN2tg2 /tmp/fileGVNlq4 2871 filemDNmyQ /tmp/filejIfae9 2872 fileGVNlq4 /tmp/fileIgnCPJ 2873 filejIfae9 /tmp/fileXJFP1u 2874 fileIgnCPJ /tmp/fileTpiUwP 2875 fileXJFP1u /tmp/fileRYtImE 2876 fileTpiUwP /tmp/filea7gg4z 2877 fileRYtImE /tmp/fileAisBr9 2878 filea7gg4z /tmp/filettAPSu 2879 fileAisBr9 /tmp/fileNkgdcP 2880 filettAPSu /tmp/filerEoQJA 2881 fileNkgdcP /tmp/filelkRRWz 2882 filerEoQJA /tmp/fileaFZH46 2883 filelkRRWz /tmp/fileCzeSf1 2884 fileaFZH46 /tmp/filedMIaS3 2885 fileCzeSf1 /tmp/fileOeibWa 2886 filedMIaS3 /tmp/filenmKmYv 2887 fileOeibWa /tmp/fileLX9dMq 2888 filenmKmYv /tmp/filexnhTOE 2889 fileLX9dMq /tmp/fileAHxTRP 2890 filexnhTOE /tmp/file3JRu7u 2891 fileAHxTRP /tmp/file6zG7XP 2892 file3JRu7u /tmp/fileJfnFMB 2893 file6zG7XP /tmp/fileFnob76 2894 fileJfnFMB -
Creates/modifies Cron job 1 TTPs 44 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
description ioc Process File opened for modification /etc/cron.hourly/0 fileFUWXG9 File opened for modification /etc/cron.hourly/0 filettAPSu File opened for modification /etc/cron.hourly/0 fileAHxTRP File opened for modification /etc/cron.hourly/0 file6zG7XP File opened for modification /etc/cron.hourly/0 filekj6LwO File opened for modification /etc/cron.hourly/0 filemDNmyQ File opened for modification /etc/cron.hourly/0 filenmKmYv File opened for modification /etc/cron.hourly/0 file3JRu7u File opened for modification /etc/cron.hourly/0 fileqbAqp9 File opened for modification /etc/cron.hourly/0 fileRvxPcA File opened for modification /etc/cron.hourly/0 fileLU6SSK File opened for modification /etc/cron.hourly/0 fileGVNlq4 File opened for modification /etc/cron.hourly/0 skid.x86.elf File opened for modification /etc/cron.hourly/0 filetN2tg2 File opened for modification /etc/cron.hourly/0 filejIfae9 File opened for modification /etc/cron.hourly/0 fileAisBr9 File opened for modification /etc/cron.hourly/0 filerEoQJA File opened for modification /etc/cron.hourly/0 filelkRRWz File opened for modification /etc/cron.hourly/0 filedMIaS3 File opened for modification /etc/cron.hourly/0 fileOeibWa File opened for modification /etc/cron.hourly/0 fileMqIeU9 File opened for modification /etc/cron.hourly/0 fileVckyP2 File opened for modification /etc/cron.hourly/0 fileE7vJua File opened for modification /etc/cron.hourly/0 fileXKnMOc File opened for modification /etc/cron.hourly/0 fileRYtImE File opened for modification /etc/cron.hourly/0 filexnhTOE File opened for modification /etc/cron.hourly/0 filecAFQnK File opened for modification /etc/cron.hourly/0 fileDhM2xj File opened for modification /etc/cron.hourly/0 fileCzeSf1 File opened for modification /etc/cron.hourly/0 fileLX9dMq File opened for modification /etc/cron.hourly/0 fileTpiUwP File opened for modification /etc/cron.hourly/0 fileepnzAc File opened for modification /etc/cron.hourly/0 fileVwpRk0 File opened for modification /etc/cron.hourly/0 fileYx4MTJ File opened for modification /etc/cron.hourly/0 fileXJFP1u File opened for modification /etc/cron.hourly/0 fileJfnFMB File opened for modification /etc/cron.hourly/0 fileSC27kp File opened for modification /etc/cron.hourly/0 fileIgnCPJ File opened for modification /etc/cron.hourly/0 filea7gg4z File opened for modification /etc/cron.hourly/0 fileNkgdcP File opened for modification /etc/cron.hourly/0 fileaFZH46 File opened for modification /etc/cron.hourly/0 filet7Ouhu File opened for modification /etc/cron.hourly/0 fileBB2ytN File opened for modification /etc/cron.hourly/0 fileY51Jhz -
Writes file to system bin folder 1 IoCs
description ioc Process File opened for modification /bin/ls skid.x86.elf -
description ioc Process File opened for reading /proc/self/exe filemDNmyQ File opened for reading /proc/self/exe fileNkgdcP File opened for reading /proc/self/exe filerEoQJA File opened for reading /proc/self/exe filexnhTOE File opened for reading /proc/self/exe fileAHxTRP File opened for reading /proc/self/exe fileSC27kp File opened for reading /proc/self/exe fileTpiUwP File opened for reading /proc/self/exe file3JRu7u File opened for reading /proc/self/exe fileBB2ytN File opened for reading /proc/self/exe fileY51Jhz File opened for reading /proc/self/exe filejIfae9 File opened for reading /proc/self/exe fileAisBr9 File opened for reading /proc/self/exe fileaFZH46 File opened for reading /proc/self/exe fileLX9dMq File opened for reading /proc/self/exe fileJfnFMB File opened for reading /proc/self/exe fileGVNlq4 File opened for reading /proc/self/exe fileRYtImE File opened for reading /proc/self/exe fileVckyP2 File opened for reading /proc/self/exe fileYx4MTJ File opened for reading /proc/self/exe fileMqIeU9 File opened for reading /proc/self/exe fileRvxPcA File opened for reading /proc/self/exe fileLU6SSK File opened for reading /proc/self/exe fileCzeSf1 File opened for reading /proc/self/exe fileE7vJua File opened for reading /proc/self/exe fileepnzAc File opened for reading /proc/self/exe fileqbAqp9 File opened for reading /proc/self/exe fileIgnCPJ File opened for reading /proc/self/exe filelkRRWz File opened for reading /proc/self/exe filedMIaS3 File opened for reading /proc/self/exe file6zG7XP File opened for reading /proc/self/exe filet7Ouhu File opened for reading /proc/self/exe fileXJFP1u File opened for reading /proc/self/exe filea7gg4z File opened for reading /proc/self/exe filettAPSu File opened for reading /proc/self/exe fileFnob76 File opened for reading /proc/self/exe skid.x86.elf File opened for reading /proc/self/exe fileOeibWa File opened for reading /proc/self/exe filetN2tg2 File opened for reading /proc/self/exe filecAFQnK File opened for reading /proc/self/exe fileFUWXG9 File opened for reading /proc/self/exe fileDhM2xj File opened for reading /proc/self/exe filenmKmYv File opened for reading /proc/self/exe fileVwpRk0 File opened for reading /proc/self/exe filekj6LwO File opened for reading /proc/self/exe fileXKnMOc -
Writes file to tmp directory 45 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/filecAFQnK fileY51Jhz File opened for modification /tmp/fileXKnMOc filekj6LwO File opened for modification /tmp/filelkRRWz filerEoQJA File opened for modification /tmp/fileAHxTRP filexnhTOE File opened for modification /tmp/file3JRu7u fileAHxTRP File opened for modification /tmp/file6zG7XP file3JRu7u File opened for modification /tmp/fileVwpRk0 fileepnzAc File opened for modification /tmp/fileFUWXG9 fileXKnMOc File opened for modification /tmp/fileXJFP1u fileIgnCPJ File opened for modification /tmp/filea7gg4z fileRYtImE File opened for modification /tmp/fileVckyP2 skid.x86.elf File opened for modification /tmp/fileY51Jhz fileSC27kp File opened for modification /tmp/fileYx4MTJ fileVwpRk0 File opened for modification /tmp/filekj6LwO fileRvxPcA File opened for modification /tmp/filemDNmyQ filetN2tg2 File opened for modification /tmp/fileTpiUwP fileXJFP1u File opened for modification /tmp/fileNkgdcP filettAPSu File opened for modification /tmp/filerEoQJA fileNkgdcP File opened for modification /tmp/fileMqIeU9 fileqbAqp9 File opened for modification /tmp/fileOeibWa filedMIaS3 File opened for modification /tmp/filenmKmYv fileOeibWa File opened for modification /tmp/fileJfnFMB file6zG7XP File opened for modification /tmp/fileAisBr9 filea7gg4z File opened for modification /tmp/filet7Ouhu fileVckyP2 File opened for modification /tmp/fileepnzAc fileE7vJua File opened for modification /tmp/filejIfae9 fileGVNlq4 File opened for modification /tmp/fileIgnCPJ filejIfae9 File opened for modification /tmp/filexnhTOE fileLX9dMq File opened for modification /tmp/fileOwQBZB fileFnob76 File opened for modification /tmp/fileBB2ytN filet7Ouhu File opened for modification /tmp/fileSC27kp fileBB2ytN File opened for modification /tmp/fileE7vJua filecAFQnK File opened for modification /tmp/fileqbAqp9 fileYx4MTJ File opened for modification /tmp/fileRvxPcA fileMqIeU9 File opened for modification /tmp/filetN2tg2 fileDhM2xj File opened for modification /tmp/fileCzeSf1 fileaFZH46 File opened for modification /tmp/filedMIaS3 fileCzeSf1 File opened for modification /tmp/fileLU6SSK fileFUWXG9 File opened for modification /tmp/fileDhM2xj fileLU6SSK File opened for modification /tmp/fileGVNlq4 filemDNmyQ File opened for modification /tmp/filettAPSu fileAisBr9 File opened for modification /tmp/fileFnob76 fileJfnFMB File opened for modification /tmp/fileRYtImE fileTpiUwP File opened for modification /tmp/fileaFZH46 filelkRRWz File opened for modification /tmp/fileLX9dMq filenmKmYv
Processes
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/tmp/skid.x86.elf/tmp/skid.x86.elf1⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Writes file to system bin folder
- Reads runtime system information
- Writes file to tmp directory
PID:2814 -
/tmp/fileVckyP2/tmp/skid.x86.elf2⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2830 -
/tmp/filet7Ouhu/tmp/skid.x86.elf3⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2831 -
/tmp/fileBB2ytN/tmp/skid.x86.elf4⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2832 -
/tmp/fileSC27kp/tmp/skid.x86.elf5⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2833 -
/tmp/fileY51Jhz/tmp/skid.x86.elf6⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2834 -
/tmp/filecAFQnK/tmp/skid.x86.elf7⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2835 -
/tmp/fileE7vJua/tmp/skid.x86.elf8⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2848 -
/tmp/fileepnzAc/tmp/skid.x86.elf9⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2855 -
/tmp/fileVwpRk0/tmp/skid.x86.elf10⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2856 -
/tmp/fileYx4MTJ/tmp/skid.x86.elf11⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2857 -
/tmp/fileqbAqp9/tmp/skid.x86.elf12⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2858 -
/tmp/fileMqIeU9/tmp/skid.x86.elf13⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2862 -
/tmp/fileRvxPcA/tmp/skid.x86.elf14⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2863 -
/tmp/filekj6LwO/tmp/skid.x86.elf15⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2864 -
/tmp/fileXKnMOc/tmp/skid.x86.elf16⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2865 -
/tmp/fileFUWXG9/tmp/skid.x86.elf17⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2866 -
/tmp/fileLU6SSK/tmp/skid.x86.elf18⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2867 -
/tmp/fileDhM2xj/tmp/skid.x86.elf19⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2868 -
/tmp/filetN2tg2/tmp/skid.x86.elf20⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2869 -
/tmp/filemDNmyQ/tmp/skid.x86.elf21⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2870 -
/tmp/fileGVNlq4/tmp/skid.x86.elf22⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2871 -
/tmp/filejIfae9/tmp/skid.x86.elf23⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2872 -
/tmp/fileIgnCPJ/tmp/skid.x86.elf24⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2873 -
/tmp/fileXJFP1u/tmp/skid.x86.elf25⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2874 -
/tmp/fileTpiUwP/tmp/skid.x86.elf26⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2875 -
/tmp/fileRYtImE/tmp/skid.x86.elf27⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2876 -
/tmp/filea7gg4z/tmp/skid.x86.elf28⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2877 -
/tmp/fileAisBr9/tmp/skid.x86.elf29⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2878 -
/tmp/filettAPSu/tmp/skid.x86.elf30⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2879 -
/tmp/fileNkgdcP/tmp/skid.x86.elf31⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2880 -
/tmp/filerEoQJA/tmp/skid.x86.elf32⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2881 -
/tmp/filelkRRWz/tmp/skid.x86.elf33⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2882 -
/tmp/fileaFZH46/tmp/skid.x86.elf34⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2883 -
/tmp/fileCzeSf1/tmp/skid.x86.elf35⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2884 -
/tmp/filedMIaS3/tmp/skid.x86.elf36⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2885 -
/tmp/fileOeibWa/tmp/skid.x86.elf37⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2886 -
/tmp/filenmKmYv/tmp/skid.x86.elf38⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2887 -
/tmp/fileLX9dMq/tmp/skid.x86.elf39⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2888 -
/tmp/filexnhTOE/tmp/skid.x86.elf40⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2889 -
/tmp/fileAHxTRP/tmp/skid.x86.elf41⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2890 -
/tmp/file3JRu7u/tmp/skid.x86.elf42⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2891 -
/tmp/file6zG7XP/tmp/skid.x86.elf43⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2892 -
/tmp/fileJfnFMB/tmp/skid.x86.elf44⤵
- Executes dropped EXE
- Creates/modifies Cron job
- Reads runtime system information
- Writes file to tmp directory
PID:2893 -
/tmp/fileFnob76/tmp/skid.x86.elf45⤵
- Reads runtime system information
- Writes file to tmp directory
PID:2894
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
92B
MD53f006f7f81fc17be7f4a0d3da0fad5de
SHA197a94d3d0654c6551057af3809b52572bd7f9f5d
SHA256982f9e0f089b91ba79df723435099df15c72e1201a45010ee60226ab136c93bf
SHA51297d2ac0057427b940ada7c0fc805c1966e2535c3c3767ca85fef4a7e0fdc9d4ef9eb133530408b1e439df067881cb317e948ad9bfd487e958a04c97d9db978e0
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Filesize
90KB
MD54bc8168b8c378af3bfae2f24d97b9b6c
SHA1fd44443b2cd003a2f730f1dc7a9d6fb0e5839eab
SHA2566a55b599795d69cb14091be61447efef93b8b809904a2955f893c4424158b74e
SHA5121c69ba6d6f12cf52bcfa0e2df1845a4ef29a5cb488e56869350ef78ad3b18cd7ac2a3dce6c7701c03d7a2aebb3f59a1977b8191fe655db847d831b160b6338bf
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Filesize
98KB
MD585f9548e1bd7afd130a1e2b851b41da8
SHA175c285684ec3964eb9bf3f4122e48c38f0ae11b8
SHA256c8e23dad72cec959fc3a9fd530bf839ca04bb3f7e433364e5aabf62160ee4da9
SHA5123f072cbf2ce940eecccb22eecfded787fd29f7a0828c6732c679a1769399ca7611d2ea201cbf37994efa40b0a2136aba50c8d760ed1e4f283a64f173ba23a576