kaiten | 9d5036d204e6598fd4c4ac93688c9acdec3d6a1e4d14018ec16db955f3ee8b24

Analysis

max time kernel
23s
max time network
9s
platform
debian-9_armhf
resource
debian9-armhf-20231215-en
resource tags

arch:armhfimage:debian9-armhf-20231215-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
20/12/2023, 05:14

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General

Target

ai.sh
Size

831B
MD5

b1a64a7afeda8fc66076eae49bdb6267
SHA1

0d840e800c0dac1d51f8a243056e94ed385c3a98
SHA256

9d5036d204e6598fd4c4ac93688c9acdec3d6a1e4d14018ec16db955f3ee8b24
SHA512

619c55b6f6d222c8a831a441205b75359976d9d80ba01734640d81b96a32e2b263448e16be8d3dad9afb1c78ebcd717cbc8dbefe134fc593f079a931140c67fa

Score

10^/10

kaiten xmrig botnet miner persistence

Malware Config

Signatures

Detects Kaiten/Tsunami Payload 1 IoCs

resource	yara_rule
behavioral2/files/fstream-6.dat	family_kaiten2

Detects Kaiten/Tsunami payload 1 IoCs

resource	yara_rule
behavioral2/files/fstream-6.dat	family_kaiten

Kaiten/Tsunami
Linux-based IoT botnet which is controlled through IRC and normally used to carry out DDoS attacks.
botnet kaiten

XMRig Miner payload 4 IoCs

miner

resource	yara_rule
behavioral2/files/fstream-3.dat	family_xmrig
behavioral2/files/fstream-3.dat	xmrig
behavioral2/files/fstream-10.dat	family_xmrig
behavioral2/files/fstream-10.dat	xmrig

xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

Executes dropped EXE 7 IoCs

ioc	pid	Process
/var/tmp/.22/start	688	start
/var/tmp/.22/hide	690	hide
/var/tmp/.22/create	692	create
/var/tmp/.22/auto	772	auto
/var/tmp/.22/init	776	init
/var/tmp/.22/mining	781	mining
/var/tmp/.22/init	783	init

Creates/modifies Cron job 1 TTPs 1 IoCs

Cron allows running tasks on a schedule, and is commonly used for malware persistence.

persistence

Scheduled Task/Job

T1053

description	ioc	Process
File opened for modification	/var/spool/cron/crontabs/tmp.xnt8NK	crontab

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

Reads CPU attributes 1 TTPs 2 IoCs

System Information Discovery

T1082

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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/790/status	ps
File opened for reading	/proc/792/stat	ps
File opened for reading	/proc/filesystems	crontab
File opened for reading	/proc/136/cmdline	pkill
File opened for reading	/proc/148/status	pkill
File opened for reading	/proc/166/cmdline	pkill
File opened for reading	/proc/640/cmdline	ps
File opened for reading	/proc/22/stat	ps
File opened for reading	/proc/41/cmdline	ps
File opened for reading	/proc/599/cmdline	ps
File opened for reading	/proc/13/status	pkill
File opened for reading	/proc/98/cmdline	pkill
File opened for reading	/proc/274/cmdline	pkill
File opened for reading	/proc/311/status	pkill
File opened for reading	/proc/3/cmdline	ps
File opened for reading	/proc/314/stat	ps
File opened for reading	/proc/781/cmdline	ps
File opened for reading	/proc/filesystems	ps
File opened for reading	/proc/2/status	ps
File opened for reading	/proc/9/status	ps
File opened for reading	/proc/20/status	pkill
File opened for reading	/proc/21/status	pkill
File opened for reading	/proc/139/cmdline	pkill
File opened for reading	/proc/283/cmdline	pkill
File opened for reading	/proc/662/cmdline	pkill
File opened for reading	/proc/9/cmdline	ps
File opened for reading	/proc/14/stat	ps
File opened for reading	/proc/136/cmdline	ps
File opened for reading	/proc/109/cmdline	ps
File opened for reading	/proc/139/cmdline	ps
File opened for reading	/proc/323/stat	ps
File opened for reading	/proc/686/status	pkill
File opened for reading	/proc/772/cmdline	pkill
File opened for reading	/proc/8/stat	ps
File opened for reading	/proc/26/cmdline	ps
File opened for reading	/proc/28/status	ps
File opened for reading	/proc/581/stat	ps
File opened for reading	/proc/2/cmdline	pkill
File opened for reading	/proc/24/status	pkill
File opened for reading	/proc/110/cmdline	ps
File opened for reading	/proc/793/cmdline	ps
File opened for reading	/proc/11/status	pkill
File opened for reading	/proc/77/status	ps
File opened for reading	/proc/272/stat	ps
File opened for reading	/proc/589/stat	ps
File opened for reading	/proc/42/stat	ps
File opened for reading	/proc/6/status	pkill
File opened for reading	/proc/286/cmdline	pkill
File opened for reading	/proc/599/cmdline	pkill
File opened for reading	/proc/638/status	pkill
File opened for reading	/proc/18/cmdline	ps
File opened for reading	/proc/21/cmdline	ps
File opened for reading	/proc/287/stat	ps
File opened for reading	/proc/644/stat	ps
File opened for reading	/proc/42/status	pkill
File opened for reading	/proc/42/cmdline	pkill
File opened for reading	/proc/4/cmdline	ps
File opened for reading	/proc/6/status	ps
File opened for reading	/proc/15/cmdline	ps
File opened for reading	/proc/786/stat	ps
File opened for reading	/proc/6/stat	ps
File opened for reading	/proc/283/cmdline	ps
File opened for reading	/proc/638/cmdline	ps
File opened for reading	/proc/640/stat	ps

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/sh-thd.HVezhm	ai.sh

/tmp/ai.sh
/tmp/ai.sh
1⤵
- Writes file to tmp directory
PID:658
- /bin/grep
  grep EST
  2⤵
  PID:671
- /bin/grep
  grep 94.241.140.177
  2⤵
  PID:672
- /bin/grep
  grep 80
  2⤵
  PID:673
- /bin/mkdir
  mkdir -p /var/tmp/.22
  2⤵
  PID:675
- /bin/tar
  tar -xf xm.jpg
  2⤵
  PID:682
- - /usr/local/sbin/gzip
    gzip -d
    3⤵
    PID:684
- - /usr/local/bin/gzip
    gzip -d
    3⤵
    PID:684
- - /usr/sbin/gzip
    gzip -d
    3⤵
    PID:684
- - /usr/bin/gzip
    gzip -d
    3⤵
    PID:684
- - /sbin/gzip
    gzip -d
    3⤵
    PID:684
- - /bin/gzip
    gzip -d
    3⤵
    PID:684
- /bin/chmod
  chmod +x start
  2⤵
  PID:687
- /var/tmp/.22/start
  ./start
  2⤵
  - Executes dropped EXE
  PID:688
- - /bin/uname
    uname -m
    3⤵
    PID:689
- - /var/tmp/.22/hide
    ./hide
    3⤵
    - Executes dropped EXE
    PID:690
- - /var/tmp/.22/create
    ./create
    3⤵
    - Executes dropped EXE
    PID:692
  - - /bin/cat
      cat auto
      4⤵
      PID:693
  - - /usr/bin/crontab
      crontab cronjobs
      4⤵
      Creates/modifies Cron job
      PID:694
  - - /bin/rm
      rm -f cronjobs
      4⤵
      PID:762
  - - /usr/bin/crontab
      crontab -l
      4⤵
      Reads runtime system information
      PID:767
  - - /bin/chmod
      chmod u+x auto init.d
      4⤵
      PID:770
  - - /bin/sh
      sh -c "./auto > /dev/null 2>&1 &"
      4⤵
      PID:771
  - - /bin/rm
      rm -f aarch64 x86_64 hide.c init.c start create
      4⤵
      PID:773

/usr/bin/base64
base64 -d
1⤵
PID:668

/bin/cat
cat
1⤵
PID:680

/var/tmp/.22/auto
./auto
1⤵
- Executes dropped EXE
PID:772
- /var/tmp/.22/init.d
  /var/tmp/.22/init.d
  2⤵
  PID:774
- - /var/tmp/.22/init
    ./init
    3⤵
    - Executes dropped EXE
    PID:776
- /bin/chmod
  chmod 755 auto hide init init.d logs mining mkcfg xm.jpg
  2⤵
  PID:778
- /usr/bin/pkill
  pkill -9 init
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:780

/var/tmp/.22/mining
./mining
1⤵
- Executes dropped EXE
PID:781
- /var/tmp/.22/init
  /var/tmp/.22/init
  2⤵
  - Executes dropped EXE
  PID:783
- /bin/uname
  uname -m
  2⤵
  PID:785
- /bin/ps
  ps -ef
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:787
- /bin/grep
  grep "sendmail: accepting connections"
  2⤵
  PID:788
- /bin/grep
  grep -v grep
  2⤵
  PID:789
- /usr/bin/awk
  awk "{print \$2}"
  2⤵
  PID:791
- /usr/bin/head
  head -1
  2⤵
  PID:792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/tmp/sh-thd.HVezhm

Filesize
34B

MD5
d73b6cacb30d623ccbb82cb8b3489476

SHA1
83a9395088a8885f45dfb4de5dc509aa74bb5164

SHA256
1a6177c310e4ddd1526252e4fcecfa3c78a440760f4adae90e4b2d60ad3000c5

SHA512
94e1949188ff086eec6dbc72dc01967f5c952928399db92656d65dc30f767e188f1a43f9558ffcf0fffaf38a522b335e6509228330780a97f09432c1b50f5941

Download Submit
/var/spool/cron/crontabs/tmp.xnt8NK

Filesize
266B

MD5
2c45f7b3f01e9572c4bd494fffca25aa

SHA1
31012c82d6f1633d2a4b75228516d662f35c1625

SHA256
46ec04534cf3c81cd39a7a7dae63c5f43f800ec3f679410dd044a30c96a89a2a

SHA512
6e59afa38913d924ed7d40dca131e4a5e45a3dc60f6740611995be6ff9879f021bfd4e9d2f878d630d749bd93e441f68d17749e445240f65cbae7b6f402c3f58

Download Submit
/var/tmp/.22/aarch64

Filesize
4.2MB

MD5
7b9dcdf38da77fae4048dd7e131ddd30

SHA1
cbcb2f6654a9a143f70c09ca7b47f4da40957581

SHA256
9912dcecb64a7f76360ea5a80ca06c0b2ae86783a104c9c9638708003bf825a1

SHA512
324825b9339fbf93eba8ecc08cfcb478edbddb6c3e6216304603d1d2e18238780a052b56d722796716add9c8756167c8538ea6d4aaef458d4a887ec0967ee8c9

Download Submit
/var/tmp/.22/auto

Filesize
13B

MD5
814dd64cc10a8383fa795113ba6fc201

SHA1
bfd109586b63447862882cacc5e1560cbbc5d759

SHA256
2d6b8ac13c7c35eb920dbdb703537e379bd275089a090aa2043bdcd4db6ae319

SHA512
22d94b78f5079941c475999bb38a56b7f3253e503a349157f4a8da1afe77385253a9adf2e046bed99e258bce423195bcd9a518fbc1de622aa09dd052284f448e

Download Submit
/var/tmp/.22/auto

Filesize
237B

MD5
31dd8df9646ec4ba759bb9bab05d50d2

SHA1
56d64851b676586beaab6b385e270855815e95bd

SHA256
5b1574e562a37087c472f214870d022e7ca80de38a601f6b16893cc2a398071f

SHA512
ae95c5016b6ccbd94a0700801bd31f113e366a1f54460a1c102f694a52d703fde19242a8bd886a854494b679793344ae123d1cd9086e97254122e8bd51d5ffb0

Download Submit
/var/tmp/.22/create

Filesize
669B

MD5
18d2b80638dc8ed90e86c7caf316fe43

SHA1
887f50f37a7e57abd113153becd5d8e36a780b19

SHA256
d6a88499031026e3216ac733dd5b6365d597fa91599d33ec10a65cbb72e229b8

SHA512
1ab557c50377097f1b4f59bacea66de1b569ea8e341d47155919d2996157f71e078e3a4b474ef005c7320e4eb46199fdda01dcffe5df6973778059466c0f2cec

Download Submit
/var/tmp/.22/cronjobs

Filesize
44B

MD5
98b58e548a19a44729a7d714872f9c40

SHA1
e547c6d88e92e35b5ebec931f0437aa1ea5885ac

SHA256
0bf4705afed32cc558a79fc696d1a4f9d58fa5e50a6cf4debd7ef0fba4e4016a

SHA512
a1892a0e42d614dfda33ba377e59227f9c1fb1f88d1378e45f3620ddfa4150def0b453e26289c9056c5a24f07909ce0d04fe607c1f41d05b087358a6c62f7e28

Download Submit
/var/tmp/.22/cronjobs

Filesize
84B

MD5
376ad2f12d602894f51b5af852cd66fe

SHA1
54817f1951a10091d576fe3adbd1ded616227087

SHA256
9a90d545850ccd6839475a2409fc65db6a7261e3f4c9c0b9a005bee4539941be

SHA512
dee880479e82fc7d4627e1aec389b16fdfa5c64921da048b23ca7ccc6d60271118230eb0487831a5d1509cc291504a897e552a680997db99db78bd181084c019

Download Submit
/var/tmp/.22/hide

Filesize
17KB

MD5
0bb4618c041fdb18c2e115b65bc5401f

SHA1
d9d039df279c4cdcceba347630a5fbdd296fca22

SHA256
3f1e584ca9393a3f635d8a8573e5b7f863df0dc092911de03bffc2d4ab4f8b53

SHA512
7dfc744f8aa5d571db704a56d6f5d5bda4b1889b1829a1cdbcc0272d059dc9fa1d2055e56c47ffb39851f175bbde41a6b137a1175cb7ad06eb64c601302538cf

Download Submit
/var/tmp/.22/init

Filesize
41KB

MD5
3d7964550b662754985bae37e0ee427b

SHA1
3de28ccabe03f53cc4f534c96337ece4878d7a0e

SHA256
03fab42e0825e6c35b803a125d63191dcf819f48bc9152180379b6c598632075

SHA512
75849f318fa46c8415fac9bded6b0bcecc2762cbb3b2c63d0d27794bfaaf8803fff3b67919758a2b7d534f30ea0a4010e828615a09d64f562820e111b00ea7c3

Download Submit
/var/tmp/.22/mining

Filesize
355B

MD5
8674ce902ffedf49ae4be47baabcc2c0

SHA1
441ecd5d3a928125e10a0b6b19f7eed31cfd4476

SHA256
8f93a7dd12dbd84749cb5cf675cd8371bd732655a8d048f269d8e88e8136e2e3

SHA512
8428b05454cc9a6ccc3ddea862d9f38b6f10f542ebf6f784b2f7027a985f1adc9bf7c69d3306b6d4d1896af9ec8e7fe1e1d9291c60652c46d7e5126a2d2e3380

Download Submit
/var/tmp/.22/mkcfg

Filesize
2KB

MD5
b586844bb52809b9dd6c5982347e27e0

SHA1
1aa9693db7bd01099d3022c5d697b601a938e205

SHA256
a86693407c7ec7a73e1f0e39ae7727f8bdbbc690cbaedeb3817f04cb9f87a57c

SHA512
2a3c4031b987178e8b93ced37794d2b2803ffb595b431f05b25793fd4874d8059d9499b8c00ca5abeb7524bba3c4d23a3a5cf2091a811c79224803f7a5f440f0

Download Submit
/var/tmp/.22/start

Filesize
176B

MD5
fe2ac6ae76a359f127213790c460496f

SHA1
df036a0088e1f418cb6e618fae06cf6282e79452

SHA256
0f1e5ab87d39835c6c28f242e68f7855a57813ef8e3e07091eee4f4d4f7ef78d

SHA512
8e41371af2cca37fff463fa1fff44db1cb462c8bf65f93f0ba0779adcfb4c812e411baf00bd67a2e7c92ddb27d65894bb18e205d6ca0e588c81219ba1b272889

Download Submit
/var/tmp/.22/x86_64

Filesize
4.6MB

MD5
1ba3f6f197a8ddd84cf30e29eed01ae9

SHA1
e63b06246de680ac8357fb2d2fb467c630b85dd2

SHA256
bbcdffd6fa3b1370dfc091bfd3bfca38be013f72f94af7ef29466d911c9604d8

SHA512
818f671bbe14e3b863511fc13fd83bf30fdf6c89240431d96b4d85105d99552c16f3e90ff52f90ce2e1cb3a14df37be6f99203eeb24ff0327245987d3ebeb3a3

Download Submit
/var/tmp/.22/xm.jpg

Filesize
3.9MB

MD5
1371a2ca243dc0cd5fae198d69f44708

SHA1
f7921b63d2b3f7587f192a5708e339e6a9b1f2f6

SHA256
13607684da4fc4c2493996ff4ffe2347a806cb13b905d97bec815d5bf33824da

SHA512
84aa7f461c8ebcdd5434f6be119217b9a51ea08c46b0b1ae1e9f0f4081dd77364c552beab8511719b8727972c46c25ab8769faccd65f8b21d6d591ee7a7d4b13

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads