12b6950a5105e5b3e4396ba1f84f4ede143da225cb7d33b12860742ed2bb12e7

Analysis

max time kernel
126s
max time network
157s
platform
debian-12_armhf
resource
debian12-armhf-20240221-en
resource tags

arch:armhfimage:debian12-armhf-20240221-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
submitted
10-02-2025 22:07

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General

Target

nklarm7.elf
Size

72KB
MD5

c8ba1406bbdf0a762644ec1eb79f1f95
SHA1

4c77cb4e6c88c4477c61fb8296e154979901a862
SHA256

12b6950a5105e5b3e4396ba1f84f4ede143da225cb7d33b12860742ed2bb12e7
SHA512

ebddc6ee098af6e9030cc027a746c646d298fb5244b693131d0cf9abf909610b2bee1a3643bafafc92c4897a00263c7f68c596796640ea68af45ebb98642b60b
SSDEEP

1536:JBnSqeBG3AXdo//H7vJv4oOhUX4yautS6yPimg9E9ljaiHHw6LR5:peA3z/fSoO6oyautS6yPimX7w6t

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (183599) 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

Deletes itself 1 IoCs

pid	Process
712	nklarm7.elf

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	nklarm7.elf
File opened for modification	/dev/misc/watchdog	nklarm7.elf

Renames itself 1 IoCs

pid	Process
712	nklarm7.elf

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	51.158.108.203

Changes its process name 1 IoCs

description	pid	Process
Changes the process name, possibly in an attempt to hide itself	712	nklarm7.elf

/tmp/nklarm7.elf
/tmp/nklarm7.elf
1⤵
- Deletes itself
- Modifies Watchdog functionality
- Renames itself
- Changes its process name
PID:712

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

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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