231aa568e46b3216ef77807c40c6d8d809ef60cc6829d79ebf06513e900bdf5a

Analysis

max time kernel
149s
max time network
156s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
07/03/2025, 14:49

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General

Target

5r3fqt67ew531has4231.arm7.elf
Size

178KB
MD5

8d6f54d0a32a19f067852e359f24c615
SHA1

c5800fa33eab7ba08c239ca5fb24f01e0d541dc7
SHA256

231aa568e46b3216ef77807c40c6d8d809ef60cc6829d79ebf06513e900bdf5a
SHA512

8940ae51e0a6e3dea0709a7694497e78bd6eb4b45d5fe4498734bbc3d59aaf86c6b28f0fee182ee60056fddc9e12677d6f0aad649cb76ca9204322762d1679c5
SSDEEP

3072:rYufNoam9juxCJMzHoabXryoLpaquQ+mhDhft7bwbZnlyOW7/M/9AKfzsL:EucsWKoabXryoLfuQ+wJwRlyOWrM/9Ap

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (195217) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

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
649	sh
660	chmod

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/systemd	648	5r3fqt67ew531has4231.arm7.elf

Reads runtime system information 2 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/filesystems	mv

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/bin/systemd	sh

/tmp/5r3fqt67ew531has4231.arm7.elf
/tmp/5r3fqt67ew531has4231.arm7.elf
1⤵
- Changes its process name
PID:648
- /bin/sh
  /bin/sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/5r3fqt67ew531has4231.arm7.elf bin/systemd; chmod 777 bin/systemd"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:649
- - /bin/rm
    rm -rf bin/systemd
    3⤵
    PID:651
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:652
- - /bin/mv
    mv /tmp/5r3fqt67ew531has4231.arm7.elf bin/systemd
    3⤵
    - Reads runtime system information
    PID:656
- - /bin/chmod
    chmod 777 bin/systemd
    3⤵
    - File and Directory Permissions Modification
    PID:660

Network

MITRE ATT&CK Enterprise v15

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

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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