89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f

Analysis

max time kernel
149s
max time network
158s
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
14-12-2024 11:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf
Size

154KB
MD5

aa35350aff901b18f6ccd15c9ac26f47
SHA1

b02f4b093b3668257e7c45070a76ef78221764f0
SHA256

89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f
SHA512

7b397b1f65f51190b170cb378b83aaf4585226a29fba0cdba586e5500af3ba9ca7565b57dc62a15791e64d591e8c18d5aecfd35649131b2b0e8cbf2c3a3b4230
SSDEEP

3072:qTlM7izW3PBmbF4tdprGND5EHmVOqiX0wbZno:qTmV/wJ4tHrGNWHmgqiEwRo

Score

7^/10

defense_evasion discovery

Malware Config

Signatures

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
653	sh
667	chmod

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	89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf
File opened for modification	/dev/misc/watchdog	89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/busybox	652	89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf

Reads runtime system information 3 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
File opened for reading	/proc/self/maps	89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf

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/busybox	sh

/tmp/89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf
/tmp/89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf
1⤵
- Modifies Watchdog functionality
- Changes its process name
- Reads runtime system information
PID:652
- /bin/sh
  sh -c "rm -rf bin/busybox && mkdir bin; >bin/busybox && mv /tmp/89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf bin/busybox; chmod 777 bin/busybox"
  2⤵
  - File and Directory Permissions Modification
  - Writes file to tmp directory
  PID:653
- - /bin/rm
    rm -rf bin/busybox
    3⤵
    PID:655
- - /bin/mkdir
    mkdir bin
    3⤵
    - Reads runtime system information
    PID:656
- - /bin/mv
    mv /tmp/89dd9cf4c505ab6c743dde3a18fcdd6024a2ae73312ce3c1a03d7b02047da98f.elf bin/busybox
    3⤵
    - Reads runtime system information
    PID:663
- - /bin/chmod
    chmod 777 bin/busybox
    3⤵
    - File and Directory Permissions Modification
    PID:667

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

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

Replay Monitor

Loading Replay Monitor...

Downloads