3179295bcfdfe05649b48bdeb03f86fd72a2c4414da58740ad7e5f881c94cc03

Analysis

max time kernel
149s
max time network
147s
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
01-02-2025 20:42

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General

Target

.Sarm.elf
Size

69KB
MD5

219075688bc6cef9a9ca8867ed6b779a
SHA1

b9441c919cba775ec32ad4d94d02f56b3f100290
SHA256

3179295bcfdfe05649b48bdeb03f86fd72a2c4414da58740ad7e5f881c94cc03
SHA512

b6f13eae7db84aa675465e1b5de0dfe7265c183925c9094902c4bc44d9c88a4462c910bb4a275f23ab3e0938ad76c600090385eefcb48bd766ff5dbd180fa3b7
SSDEEP

1536:oKMsKzlnbkClERF0LPGmSsdV/OQvZ54Lr72muf0vy:oKGZGmSKJZ6n2sy

Score

7^/10

defense_evasion

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
645	.Sarm.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	.Sarm.elf
File opened for modification	/dev/misc/watchdog	.Sarm.elf

Traces itself 1 IoCs

Traces itself to prevent debugging attempts

pid	Process
645	.Sarm.elf

Writes file to system bin folder 2 IoCs

description	ioc	Process
File opened for modification	/sbin/watchdog	.Sarm.elf
File opened for modification	/bin/watchdog	.Sarm.elf

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/var/Sofia	645	.Sarm.elf

/tmp/.Sarm.elf
/tmp/.Sarm.elf
1⤵
- Deletes itself
- Modifies Watchdog functionality
- Traces itself
- Writes file to system bin folder
- Changes its process name
PID:645

Network

MITRE ATT&CK Enterprise v15

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 v15

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