7ed7cbf064b2d49295a28931f8a95258acad0596ef5dea61713e58abafee2a8e

Analysis

max time kernel
149s
max time network
151s
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
08/10/2024, 16:59

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General

Target

nullnet_load.arm.elf
Size

81KB
MD5

3427eb0374873f1695dd9feb0e5db1ea
SHA1

0165c5435b93c90206095e3eb5c28a8cdff0303c
SHA256

7ed7cbf064b2d49295a28931f8a95258acad0596ef5dea61713e58abafee2a8e
SHA512

af210294609a23c28ed667c184cc2ed2e65c0302319f8f9da891a36143018ef94b02da1909e8e5631edab4832c2eec568665231db3483145c7c430f07471c1e4
SSDEEP

1536:nPD2dG+bsLPfn2hpej3lzVM9D52c0wIXhkB8t46/foOy3JWpY:PD2dTXeTQJIRE84wfo53JW

Score

9^/10

credential_access defense_evasion discovery

Malware Config

Signatures

Contacts a large (70369) 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	nullnet_load.arm.elf
File opened for modification	/dev/misc/watchdog	nullnet_load.arm.elf

Enumerates running processes
Discovers information about currently running processes on the system

Reads process memory 1 TTPs 32 IoCs

Read the memory of a process through the /proc virtual filesystem. This can be used to steal credentials.

credential_access

Proc Filesystem

T1003.007

description	ioc	Process
File opened for reading	/proc/713/maps	nullnet_load.arm.elf
File opened for reading	/proc/772/maps	nullnet_load.arm.elf
File opened for reading	/proc/776/maps	nullnet_load.arm.elf
File opened for reading	/proc/597/maps	nullnet_load.arm.elf
File opened for reading	/proc/658/maps	nullnet_load.arm.elf
File opened for reading	/proc/749/maps	nullnet_load.arm.elf
File opened for reading	/proc/635/maps	nullnet_load.arm.elf
File opened for reading	/proc/642/maps	nullnet_load.arm.elf
File opened for reading	/proc/762/maps	nullnet_load.arm.elf
File opened for reading	/proc/768/maps	nullnet_load.arm.elf
File opened for reading	/proc/778/maps	nullnet_load.arm.elf
File opened for reading	/proc/782/maps	nullnet_load.arm.elf
File opened for reading	/proc/590/maps	nullnet_load.arm.elf
File opened for reading	/proc/648/maps	nullnet_load.arm.elf
File opened for reading	/proc/755/maps	nullnet_load.arm.elf
File opened for reading	/proc/770/maps	nullnet_load.arm.elf
File opened for reading	/proc/641/maps	nullnet_load.arm.elf
File opened for reading	/proc/678/maps	nullnet_load.arm.elf
File opened for reading	/proc/598/maps	nullnet_load.arm.elf
File opened for reading	/proc/640/maps	nullnet_load.arm.elf
File opened for reading	/proc/649/maps	nullnet_load.arm.elf
File opened for reading	/proc/773/maps	nullnet_load.arm.elf
File opened for reading	/proc/577/maps	nullnet_load.arm.elf
File opened for reading	/proc/595/maps	nullnet_load.arm.elf
File opened for reading	/proc/645/maps	nullnet_load.arm.elf
File opened for reading	/proc/764/maps	nullnet_load.arm.elf
File opened for reading	/proc/647/maps	nullnet_load.arm.elf
File opened for reading	/proc/774/maps	nullnet_load.arm.elf
File opened for reading	/proc/766/maps	nullnet_load.arm.elf
File opened for reading	/proc/780/maps	nullnet_load.arm.elf
File opened for reading	/proc/709/maps	nullnet_load.arm.elf
File opened for reading	/proc/757/maps	nullnet_load.arm.elf

Changes its process name 1 IoCs

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

/tmp/nullnet_load.arm.elf
/tmp/nullnet_load.arm.elf
1⤵
- Modifies Watchdog functionality
- Reads process memory
- Changes its process name
PID:643

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Credential Access

OS Credential Dumping

T1003

Proc Filesystem

T1003.007

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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