5019aca5dff16abfe11eb321ec762e9d67d7282ae2bac163e3209a1dadc2d5b1

Analysis

max time kernel
138s
max time network
153s
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
07/03/2025, 13:57

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General

Target

5r3fqt67ew531has4231.arm.elf
Size

93KB
MD5

fcfc2dd416618a5ab1671417f2836883
SHA1

722fd5f0aab4b234172b363a395546f51a4ec72d
SHA256

5019aca5dff16abfe11eb321ec762e9d67d7282ae2bac163e3209a1dadc2d5b1
SHA512

25ad75d1199b8cd5924c9f33b2d7b95a0ac95ded62f29d256e478ff7a18ed2a45440ae6951214358551031a7a9ae24e92538a4449d351bd4af2394cd11563b49
SSDEEP

1536:Er6WDkiCNrvwjU+52FPqFE8qfA5o5EJnz5MCMPV9t9DiO2vhJJs92kvUpCYowbZ5:Er6W7csWDKJJMPVRiO2WZNPwbZn5

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (173160) 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

File and Directory Permissions Modification 1 TTPs 2 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
661	sh
672	chmod

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/watchdog	658	5r3fqt67ew531has4231.arm.elf

Reads runtime system information 2 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/filesystems	mv

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/bin/watchdog	sh

/tmp/5r3fqt67ew531has4231.arm.elf
/tmp/5r3fqt67ew531has4231.arm.elf
1⤵
- Changes its process name
PID:658
- /bin/sh
  sh -c "rm -rf bin/watchdog && mkdir bin; >bin/watchdog && mv /tmp/5r3fqt67ew531has4231.arm.elf bin/watchdog; chmod 777 bin/watchdog"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:661
- - /bin/rm
    rm -rf bin/watchdog
    3⤵
    PID:663
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:667
- - /bin/mv
    mv /tmp/5r3fqt67ew531has4231.arm.elf bin/watchdog
    3⤵
    - Reads runtime system information
    PID:670
- - /bin/chmod
    chmod 777 bin/watchdog
    3⤵
    - File and Directory Permissions Modification
    PID:672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

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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