27d13d2f3ecfa851961cceee52850b9a1a18a0acd72cd9a6c0e1d1ee13ff3715

Analysis

max time kernel
149s
max time network
150s
platform
debian-9_armhf
resource
debian9-armhf-20240729-en
resource tags

arch:armhfimage:debian9-armhf-20240729-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
29-12-2024 21:35

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General

Target

arm.elf
Size

114KB
MD5

50728716bbb3316434121160f54a0457
SHA1

e2821a2d04fd8332004110a4c68a8486d4489fdd
SHA256

27d13d2f3ecfa851961cceee52850b9a1a18a0acd72cd9a6c0e1d1ee13ff3715
SHA512

24657ee1f98580081ef44d31cb7c38a0324f3c7bbfd3abae0ed433019fd7b9af15ae87db0259bc740b73382ea8632e5e7312397fa7de06634362769d743a5fbf
SSDEEP

1536:amH6BXQ389Z+YkakZSkVTO1H+DPMnzDn6KeZWS5x5De6Qi6M5WwBNA0aCJtlxLvo:amaBXQaEOzDnlw7TdjQiJYwBFJ7vkt

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (49343) 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

Modifies Watchdog functionality 1 TTPs 2 IoCs

Malware like Mirai modifies the Watchdog to prevent it restarting an infected system.

defense_evasion

Impair Defenses

T1562

description	ioc	Process
File opened for modification	/dev/watchdog	arm.elf
File opened for modification	/dev/misc/watchdog	arm.elf

Enumerates active TCP sockets 1 TTPs 1 IoCs

Gets active TCP sockets from /proc virtual filesystem.

discovery

System Network Connections Discovery

T1049

description	ioc	Process
File opened for reading	/proc/net/tcp	arm.elf

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	FmhNdnyqToaCBffUyH	643	arm.elf

Reads system network configuration 1 TTPs 1 IoCs

Uses contents of /proc filesystem to enumerate network settings.

discovery

Internet Connection Discovery

T1016.001

description	ioc	Process
File opened for reading	/proc/net/tcp	arm.elf

/tmp/arm.elf
/tmp/arm.elf
1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Changes its process name
- Reads system network configuration
PID:643

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Network Service Discovery

T1046

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

System Network Connections Discovery

T1049

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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