5cc8e494a701a2f510cff13ec26bc59ef4c8f0812685a1ff7752a1c613f52f31

Analysis

max time kernel
149s
max time network
157s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
23/03/2025, 02:52

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General

Target

arm7.elf
Size

140KB
MD5

a4f6cf4e6edb03734e3fd5d250dfa63b
SHA1

1297b2b89a27d8c3615548099cd38cbab48dc406
SHA256

5cc8e494a701a2f510cff13ec26bc59ef4c8f0812685a1ff7752a1c613f52f31
SHA512

5e1828b4cf29b04a553895af4299a46d83de01f59142737b1a66d121047404636d7c38b4052319fc6c5d5be100af82d7c9c54f4c41f5aa80bc3d423e70e8eb78
SSDEEP

3072:KTg0ts0CbhXBazV4WLZIdiv9cBBXB45M/9t1Ng:WruVbZBazV4W9IYOBXBaM/9tE

Score

7^/10

credential_access 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/watchdog	arm7.elf
File opened for modification	/dev/misc/watchdog	arm7.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	arm7.elf

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

Reads process memory 1 TTPs 29 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/758/maps	arm7.elf
File opened for reading	/proc/762/maps	arm7.elf
File opened for reading	/proc/570/maps	arm7.elf
File opened for reading	/proc/588/maps	arm7.elf
File opened for reading	/proc/635/maps	arm7.elf
File opened for reading	/proc/639/maps	arm7.elf
File opened for reading	/proc/760/maps	arm7.elf
File opened for reading	/proc/756/maps	arm7.elf
File opened for reading	/proc/767/maps	arm7.elf
File opened for reading	/proc/768/maps	arm7.elf
File opened for reading	/proc/641/maps	arm7.elf
File opened for reading	/proc/630/maps	arm7.elf
File opened for reading	/proc/636/maps	arm7.elf
File opened for reading	/proc/750/maps	arm7.elf
File opened for reading	/proc/771/maps	arm7.elf
File opened for reading	/proc/754/maps	arm7.elf
File opened for reading	/proc/764/maps	arm7.elf
File opened for reading	/proc/773/maps	arm7.elf
File opened for reading	/proc/766/maps	arm7.elf
File opened for reading	/proc/645/maps	arm7.elf
File opened for reading	/proc/670/maps	arm7.elf
File opened for reading	/proc/585/maps	arm7.elf
File opened for reading	/proc/591/maps	arm7.elf
File opened for reading	/proc/637/maps	arm7.elf
File opened for reading	/proc/747/maps	arm7.elf
File opened for reading	/proc/775/maps	arm7.elf
File opened for reading	/proc/590/maps	arm7.elf
File opened for reading	/proc/769/maps	arm7.elf
File opened for reading	/proc/749/maps	arm7.elf

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	dtc426lohd23kpua	638	arm7.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	arm7.elf

/tmp/arm7.elf
/tmp/arm7.elf
1⤵
- Modifies Watchdog functionality
- Enumerates active TCP sockets
- Reads process memory
- Changes its process name
- Reads system network configuration
PID:638

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

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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