fee0bbef61396a9f82c6f49a21484727e1533ea2d821c5d15e5a739bfb6066de

Analysis

max time kernel
22s
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
27/06/2024, 08:05

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General

Target

15423b12d0725c4a50ce7c9840638aa7_JaffaCakes118
Size

30KB
MD5

15423b12d0725c4a50ce7c9840638aa7
SHA1

7ef618c233e6f58678de0657c104c39eb32de929
SHA256

fee0bbef61396a9f82c6f49a21484727e1533ea2d821c5d15e5a739bfb6066de
SHA512

2e82e865ee4fafacaf25a76a3fbecf99e53b5f76c4c41fe56f79c8b4685919f12ba4b27125f9487d096fe4a9949ffd5901fac3005ffdc485c97f120f0649fec5
SSDEEP

384:p7pQBDf6jlpTWg3vMGQiirhHwMyGj4CC9vEKMvU/4Qdre21jT58vKpG2Y0orcfKG:p78zQ5VFNcDAFLcIwgnoYq0xFBVdHtln

Score

7^/10

evasion

Malware Config

Signatures

Deletes system logs 1 TTPs 1 IoCs

Deletes log file which contains global system messages. Adversaries may delete system logs to minimize their footprint.

evasion

Indicator Removal

T1070

description	ioc	Process
File deleted	/var/log/syslog	rm

Flushes firewall rules 1 IoCs

Flushes/ disables firewall rules inside the Linux kernel.

pid	Process
674	iptables

Attempts to change immutable files 31 IoCs

Modifies inode attributes on the filesystem to allow changing of immutable files.

pid	Process
710	xargs
791	xargs
817	xargs
704	grep
809	xargs
700	grep
759	xargs
813	xargs
722	xargs
735	xargs
747	xargs
797	xargs
811	xargs
819	xargs
670	chattr
692	chattr
771	xargs
785	xargs
668	chattr
753	xargs
672	chattr
803	xargs
741	xargs
765	xargs
779	xargs
815	xargs
665	chattr
693	chattr
716	xargs
728	xargs
821	xargs

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

Reads CPU attributes 1 TTPs 5 IoCs

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	pkill

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/109/cmdline	pkill
File opened for reading	/proc/825/status	pkill
File opened for reading	/proc/28/cmdline	ps
File opened for reading	/proc/703/status	ps
File opened for reading	/proc/106/cmdline	pkill
File opened for reading	/proc/6/cmdline	pkill
File opened for reading	/proc/827/status	pkill
File opened for reading	/proc/27/cmdline	pkill
File opened for reading	/proc/43/status	ps
File opened for reading	/proc/76/stat	ps
File opened for reading	/proc/21/status	pkill
File opened for reading	/proc/28/cmdline	pkill
File opened for reading	/proc/12/stat	ps
File opened for reading	/proc/109/status	ps
File opened for reading	/proc/24/status	pkill
File opened for reading	/proc/284/status	pkill
File opened for reading	/proc/306/status	ps
File opened for reading	/proc/18/status	ps
File opened for reading	/proc/29/status	pkill
File opened for reading	/proc/304/cmdline	pkill
File opened for reading	/proc/167/cmdline	pkill
File opened for reading	/proc/828/cmdline	pkill
File opened for reading	/proc/6/stat	ps
File opened for reading	/proc/442/cmdline	pkill
File opened for reading	/proc/27/status	pkill
File opened for reading	/proc/76/status	pkill
File opened for reading	/proc/108/status	pkill
File opened for reading	/proc/274/stat	ps
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/649/status	pkill
File opened for reading	/proc/773/status	pkill
File opened for reading	/proc/650/status	ps
File opened for reading	/proc/43/status	pkill
File opened for reading	/proc/42/status	ps
File opened for reading	/proc/137/cmdline	ps
File opened for reading	/proc/658/status	ps
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/24/cmdline	pkill
File opened for reading	/proc/20/status	pkill
File opened for reading	/proc/1/cmdline	ps
File opened for reading	/proc/703/stat	ps
File opened for reading	/proc/9/stat	ps
File opened for reading	/proc/9/cmdline	ps
File opened for reading	/proc/27/cmdline	pkill
File opened for reading	/proc/12/cmdline	ps
File opened for reading	/proc/self/fd	xargs
File opened for reading	/proc/17/cmdline	pkill
File opened for reading	/proc/24/cmdline	pkill
File opened for reading	/proc/43/cmdline	ps
File opened for reading	/proc/76/status	ps
File opened for reading	/proc/167/cmdline	ps
File opened for reading	/proc/650/cmdline	pkill
File opened for reading	/proc/28/cmdline	pkill
File opened for reading	/proc/43/status	pkill
File opened for reading	/proc/42/stat	ps
File opened for reading	/proc/42/stat	ps
File opened for reading	/proc/274/cmdline	ps
File opened for reading	/proc/138/cmdline	pkill
File opened for reading	/proc/3/cmdline	pkill
File opened for reading	/proc/29/cmdline	ps
File opened for reading	/proc/11/cmdline	pkill
File opened for reading	/proc/2/cmdline	pkill

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/log_rot	15423b12d0725c4a50ce7c9840638aa7_JaffaCakes118

/tmp/15423b12d0725c4a50ce7c9840638aa7_JaffaCakes118
/tmp/15423b12d0725c4a50ce7c9840638aa7_JaffaCakes118
1⤵
- Writes file to tmp directory
PID:659
- /bin/rm
  rm -rf /var/log/syslog
  2⤵
  - Deletes system logs
  PID:660
- /usr/bin/chattr
  chattr -iua /tmp/
  2⤵
  - Attempts to change immutable files
  PID:665
- /usr/bin/chattr
  chattr -iua /var/tmp/
  2⤵
  - Attempts to change immutable files
  PID:668
- /usr/bin/chattr
  chattr -R -i /var/spool/cron
  2⤵
  - Attempts to change immutable files
  PID:670
- /usr/bin/chattr
  chattr -i /etc/crontab
  2⤵
  - Attempts to change immutable files
  PID:672
- /sbin/iptables
  iptables -F
  2⤵
  - Flushes firewall rules
  PID:674
- /usr/bin/sudo
  sudo sysctl "kernel.nmi_watchdog=0"
  2⤵
  PID:681
- /usr/sbin/userdel
  userdel akay
  2⤵
  PID:686
- /usr/sbin/userdel
  userdel vfinder
  2⤵
  PID:689
- /usr/bin/chattr
  chattr -iae /root/.ssh/
  2⤵
  - Attempts to change immutable files
  PID:692
- /usr/bin/chattr
  chattr -iae /root/.ssh/authorized_keys
  2⤵
  - Attempts to change immutable files
  PID:693
- /bin/rm
  rm -rf "/tmp/addres*"
  2⤵
  PID:695
- /bin/rm
  rm -rf "/tmp/walle*"
  2⤵
  PID:696
- /bin/rm
  rm -rf /tmp/keys
  2⤵
  PID:698
- /bin/ps
  ps aux
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:699
- /bin/grep
  grep -i "[a]liyun"
  2⤵
  - Attempts to change immutable files
  PID:700
- /bin/ps
  ps aux
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:703
- /bin/grep
  grep -i "[y]unjing"
  2⤵
  - Attempts to change immutable files
  PID:704
- /bin/grep
  grep 185.71.65.238
  2⤵
  PID:707
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:708
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:709
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:710
- /bin/grep
  grep 140.82.52.87
  2⤵
  PID:713
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:714
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:715
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:716
- /bin/grep
  grep :143
  2⤵
  PID:718
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:719
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:720
- /bin/grep
  grep -v -
  2⤵
  PID:721
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  - Reads runtime system information
  PID:722
- /bin/grep
  grep :2222
  2⤵
  PID:724
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:725
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:726
- /bin/grep
  grep -v -
  2⤵
  PID:727
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:728
- /bin/grep
  grep :3333
  2⤵
  PID:731
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:733
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:732
- /bin/grep
  grep -v -
  2⤵
  PID:734
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:735
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:738
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:739
- /bin/grep
  grep :3389
  2⤵
  PID:737
- /bin/grep
  grep -v -
  2⤵
  PID:740
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:741
- /bin/grep
  grep :4444
  2⤵
  PID:743
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:744
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:745
- /bin/grep
  grep -v -
  2⤵
  PID:746
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:747
- /bin/grep
  grep :5555
  2⤵
  PID:749
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:750
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:751
- /bin/grep
  grep -v -
  2⤵
  PID:752
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:753
- /bin/grep
  grep :6666
  2⤵
  PID:755
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:756
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:757
- /bin/grep
  grep -v -
  2⤵
  PID:758
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:759
- /bin/grep
  grep :6665
  2⤵
  PID:761
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:762
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:763
- /bin/grep
  grep -v -
  2⤵
  PID:764
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:765
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:768
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:769
- /bin/grep
  grep :6667
  2⤵
  PID:767
- /bin/grep
  grep -v -
  2⤵
  PID:770
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  - Reads runtime system information
  PID:771
- /bin/grep
  grep :7777
  2⤵
  PID:775
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:776
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:777
- /bin/grep
  grep -v -
  2⤵
  PID:778
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:779
- /bin/grep
  grep :8444
  2⤵
  PID:781
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:782
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:783
- /bin/grep
  grep -v -
  2⤵
  PID:784
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  - Reads runtime system information
  PID:785
- /bin/grep
  grep :3347
  2⤵
  PID:787
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:788
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:789
- /bin/grep
  grep -v -
  2⤵
  PID:790
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:791
- /bin/grep
  grep :14444
  2⤵
  PID:793
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:794
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:795
- /bin/grep
  grep -v -
  2⤵
  PID:796
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:797
- /bin/grep
  grep :14433
  2⤵
  PID:799
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:800
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:801
- /bin/grep
  grep -v -
  2⤵
  PID:802
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:803
- /bin/grep
  grep :13531
  2⤵
  PID:805
- /usr/bin/awk
  awk "{print \$7}"
  2⤵
  PID:806
- /usr/bin/awk
  awk "-F[/]" "{print \$1}"
  2⤵
  PID:807
- /bin/grep
  grep -v -
  2⤵
  PID:808
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:809
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  - Reads runtime system information
  PID:811
- /bin/cat
  cat /tmp/.X11-unix/01
  2⤵
  PID:810
- /bin/cat
  cat /tmp/.X11-unix/11
  2⤵
  PID:812
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:813
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:815
- /bin/cat
  cat /tmp/.X11-unix/22
  2⤵
  PID:814
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:817
- /bin/cat
  cat /tmp/.pg_stat.0
  2⤵
  PID:816
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  - Reads runtime system information
  PID:819
- /bin/cat
  cat /tmp/.pg_stat.1
  2⤵
  PID:818
- /usr/bin/xargs
  xargs -I "%" kill -9 "%"
  2⤵
  - Attempts to change immutable files
  PID:821
- /bin/cat
  cat /data/./oka.pid
  2⤵
  PID:820
- /usr/bin/pkill
  pkill -f zsvc
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:822
- /usr/bin/pkill
  pkill -f pdefenderd
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:825
- /usr/bin/pkill
  pkill -f updatecheckerd
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:827

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

/tmp/log_rot

Filesize
5B

MD5
727479ef7cedf30c03459bec7d87b0f0

SHA1
2082e7f715f058acab2398d25d135cf5f4c0ce41

SHA256
29872037c9573567744ef10ed2de57864ded7554c9fa2ef03fc1244c65794ba6

SHA512
4cb59d37f8481f9bb2745f494baa0910a68aad40ac2903ef1513547e091e1e772a5f9436f789ab91fcafb75b8a28c2112ede89004be41f33c01d936b542ca6ba

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