c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583

Analysis

max time kernel
109s
max time network
154s
platform
debian-9_mips
resource
debian9-mipsbe-20240611-en
resource tags

arch:mipsimage:debian9-mipsbe-20240611-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
17/12/2024, 04:31

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General

Target

c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.elf
Size

82KB
MD5

c8f3cfd96eb9c71ba7beb71448b96df7
SHA1

f594b13acca486721f3b7a86967eece5607ea533
SHA256

c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583
SHA512

fd82d9b855e675890708290b14b40826eeab145e571e9a859f97c88266e87a96dee879544814cb1947b6aae8b5c13229141f79a0cf3359b6ba528fa4ecdb967a
SSDEEP

768:2ty6IP7M/kq0INRhfuN2Eo9tl/de2YIwHKRH0I84EH6UTjU7ZDYovZ73x/nL8y86:Rakdn2Eo3ePu5GTjURYo99Be037WWv

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (34294) 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
704	sh
715	chmod

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/systemd	703	c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.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/systemd	sh

/tmp/c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.elf
/tmp/c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.elf
1⤵
- Changes its process name
PID:703
- /bin/sh
  sh -c "rm -rf bin/systemd && mkdir bin; >bin/systemd && mv /tmp/c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.elf bin/systemd; chmod 777 bin/systemd"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:704
- - /bin/rm
    rm -rf bin/systemd
    3⤵
    PID:706
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:709
- - /bin/mv
    mv /tmp/c4a55a33efc00d141848f686ce70c03798b1375998a6c414d955784e76539583.elf bin/systemd
    3⤵
    - Reads runtime system information
    PID:713
- - /bin/chmod
    chmod 777 bin/systemd
    3⤵
    - File and Directory Permissions Modification
    PID:715

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

Windows 7 deprecation

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