c89341ffa77579edea71e6902494c09a569cc4f6356d616933f273e8ea38bf89

Analysis

max time kernel
149s
max time network
150s
platform
debian-12_armhf
resource
debian12-armhf-20260513-en
resource tags

arch:armhfimage:debian12-armhf-20260513-enkernel:6.1.0-17-armmp-lpaelocale:en-usos:debian-12-armhfsystem
submitted
02/08/2026, 06:32

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General

Target
zero.armv7l.elf
Size 141KB
Sample260802-hasevsed59
SHA256 c89341ffa77579edea71e6902494c09a569cc4f6356d616933f273e8ea38bf89
MD5 a526e2a763a69ba1dda69e7b58c4d6ac
SHA1 08ab6f65d703b819c02677749380b0dea3f6fe48
SHA512 52d7680fc318c43ab3e1e7af24aa6d5cde9b09a412f8b7b5b058cd78a2c418e0fa8300b4bb0917ea6a6799672855164d67db81f18fde2e2fda40e6bb7fb5e0bf
SSDEEP 3072:/XVCt2PZvjYxbuvlvbIjmB16aDGb3d7slx5iBEHh:/F6gbIqv6aDGb3dYkBEHh
TLSH
T121E30789BC814B00D5D636F6FA1E124933534BBCE3F9B1039E145B2E278AD6B0B37A55
MD5 SHA1 SHA512 SSDEEP TLSH

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

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/misc/watchdog	zero.armv7l.elf
File opened for modification	/dev/watchdog	zero.armv7l.elf

Traces itself 2 IoCs

Traces itself to prevent debugging attempts

pid	Process
786	zero.armv7l.elf
788	zero.armv7l.elf

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	a- M$ &	786	zero.armv7l.elf

Reads runtime system information 12 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/802/exe	zero.armv7l.elf
File opened for reading	/proc/639/exe	zero.armv7l.elf
File opened for reading	/proc/728/exe	zero.armv7l.elf
File opened for reading	/proc/766/exe	zero.armv7l.elf
File opened for reading	/proc/812/exe	zero.armv7l.elf
File opened for reading	/proc/789/exe	zero.armv7l.elf
File opened for reading	/proc/623/exe	zero.armv7l.elf
File opened for reading	/proc/640/exe	zero.armv7l.elf
File opened for reading	/proc/671/exe	zero.armv7l.elf
File opened for reading	/proc/676/exe	zero.armv7l.elf
File opened for reading	/proc/782/exe	zero.armv7l.elf
File opened for reading	/proc/783/exe	zero.armv7l.elf

/tmp/zero.armv7l.elf
/tmp/zero.armv7l.elf
1⤵
- Modifies Watchdog functionality
- Traces itself
- Changes its process name
- Reads runtime system information
PID:786

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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