Analysis
- max time kernel
31s - max time network
129s - platform
ubuntu-18.04_amd64 - resource
ubuntu1804-amd64-20260513-en - resource tags
arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system - submitted
11/08/2026, 12:27
Behavioral task
behavioral1
Sample
pty3
Resource
ubuntu1804-amd64-20260513-en
10 signatures
150 seconds
General
- Target pty3
- Size 47KB
- Sample260811-pmtl1sshka
- SHA256 9e28f942262805b5fb59f46568fed53fd4b7dbf6faf666bedaf6ff22dd416572
- MD5 7822cdf1cf8e30d9997c9743f8897f33
- SHA1 0f97481dd038a7a894d31f49148a6d03ddc66921
- SHA512 e82240a28e03744d3e31e2d6af1fc1d381c02a5584a11438767d934e556725d2cc77608c07080b5e3e7d0ab43d8bfc4c96161eab424151f474ab1e0b98546d87
- SSDEEP 768:XI/noIixTExsxBl76KRcGBP6VJ4rFzwgfTvex20qJNdcNm91Qsqx:YPmTExml76KRrB6VJsLk2rdc891G
- TLSH T155230227EE672841F0C50178893E15366F31B6424D4AEF1F2D2E38875AF89DF88AF581
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Kaiten/Tsunami Payload 1 IoCs
resource yara_rule behavioral1/memory/1486-1-0x0000000000400000-0x000000000051adf0-memory.dmp family_kaiten_v3 - Creates/modifies Cron job 1 TTPs 5 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
description ioc Process File opened for modification /var/spool/cron/crontabs/tmp.GEIlpZ crontab File opened for modification /var/spool/cron/crontabs/tmp.QdshN1 crontab File opened for modification /var/spool/cron/crontabs/tmp.9avtG3 crontab File opened for modification /var/spool/cron/crontabs/tmp.lrDpq9 crontab File opened for modification /var/spool/cron/crontabs/tmp.gmOpbc crontab - Enumerates running processes
Discovers information about currently running processes on the system
- Indicator Removal: Timestomp 1 TTPs 10 IoCs
Adversaries may remove indicators of compromise from the host to evade detection.
pid Process 1559 touch 1578 sh 1513 touch 1538 sh 1539 touch 1558 sh 1579 touch 1598 sh 1599 touch 1512 sh -
resource yara_rule behavioral1/files/fstream-8.dat upx - Changes its process name 1 IoCs
description ioc pid Process Changes the process name, possibly in an attempt to hide itself itjw04mwkv5ampc1 1486 pty3 -
description ioc Process File opened for reading /proc/15/cmdline pidof File opened for reading /proc/963/stat pidof File opened for reading /proc/84/stat pidof File opened for reading /proc/484/stat pidof File opened for reading /proc/1298/stat pidof File opened for reading /proc/89/stat pidof File opened for reading /proc/465/cmdline pidof File opened for reading /proc/940/cmdline pidof File opened for reading /proc/28/stat pidof File opened for reading /proc/32/cmdline pidof File opened for reading /proc/161/cmdline pidof File opened for reading /proc/171/stat pidof File opened for reading /proc/574/cmdline pidof File opened for reading /proc/8/cmdline pidof File opened for reading /proc/35/stat pidof File opened for reading /proc/560/cmdline pidof File opened for reading /proc/13/cmdline pidof File opened for reading /proc/9/cmdline pidof File opened for reading /proc/26/cmdline pidof File opened for reading /proc/5/cmdline pidof File opened for reading /proc/904/stat pidof File opened for reading /proc/19/stat pidof File opened for reading /proc/164/cmdline pidof File opened for reading /proc/465/stat pidof File opened for reading /proc/602/stat pidof File opened for reading /proc/162/cmdline pidof File opened for reading /proc/675/stat pidof File opened for reading /proc/1040/cmdline pidof File opened for reading /proc/1488/stat pidof File opened for reading /proc/5/stat pidof File opened for reading /proc/531/stat pidof File opened for reading /proc/5/cmdline pidof File opened for reading /proc/163/stat pidof File opened for reading /proc/1052/stat pidof File opened for reading /proc/249/stat pidof File opened for reading /proc/675/stat pidof File opened for reading /proc/1068/stat pidof File opened for reading /proc/1035/stat pidof File opened for reading /proc/444/cmdline pidof File opened for reading /proc/1490/cmdline pidof File opened for reading /proc/80/stat pidof File opened for reading /proc/485/cmdline pidof File opened for reading /proc/1484/stat pidof File opened for reading /proc/80/cmdline pidof File opened for reading /proc/163/stat pidof File opened for reading /proc/201/stat pidof File opened for reading /proc/449/stat pidof File opened for reading /proc/468/cmdline pidof File opened for reading /proc/1158/cmdline pidof File opened for reading /proc/1240/stat pidof File opened for reading /proc/24/cmdline pidof File opened for reading /proc/940/stat pidof File opened for reading /proc/1050/cmdline pidof File opened for reading /proc/1456/stat pidof File opened for reading /proc/897/stat pidof File opened for reading /proc/1031/stat pidof File opened for reading /proc/1171/cmdline pidof File opened for reading /proc/899/cmdline pidof File opened for reading /proc/982/cmdline pidof File opened for reading /proc/1052/stat pidof File opened for reading /proc/1140/cmdline pidof File opened for reading /proc/449/cmdline pidof File opened for reading /proc/171/cmdline pidof File opened for reading /proc/495/cmdline pidof - Writes file to shm directory 1 IoCs
Malware can drop malicious files in the shm directory which will run directly from RAM.
description ioc Process File opened for modification /dev/shm/pty3 cp - Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/.bawtz pty3
Processes
-
/tmp/pty3/tmp/pty31⤵
- Changes its process name
- Writes file to tmp directory
PID:1486 -
/bin/shsh -c "pidof -x strace > /dev/null"2⤵PID:1487
-
/bin/pidofpidof -x strace3⤵
- Reads runtime system information
PID:1488
-
-
-
/bin/shsh -c "pidof -x tcpdump > /dev/null"2⤵PID:1489
-
/bin/pidofpidof -x tcpdump3⤵
- Reads runtime system information
PID:1490
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/tmp/pty3\" > /etc/inittab2"2⤵PID:1493
-
/bin/catcat /etc/inittab3⤵PID:1495
-
-
/bin/grepgrep -v /tmp/pty33⤵PID:1496
-
-
-
/bin/shsh -c "crontab -l | grep /tmp/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /tmp/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1494
-
/bin/grepgrep -v "no cron"3⤵PID:1500
-
-
/bin/grepgrep /tmp/pty33⤵PID:1499
-
-
/usr/bin/crontabcrontab -l3⤵PID:1498
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1506
-
-
/usr/bin/crontabcrontab -l3⤵PID:1508
-
-
-
/bin/shsh -c "crontab -r"2⤵PID:1497
-
/usr/bin/crontabcrontab -r3⤵PID:1501
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/tmp/pty3\" >> /etc/inittab2"2⤵PID:1503
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1507
-
/bin/catcat /etc/inittab23⤵PID:1509
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1510
-
/bin/rmrm -rf /etc/inittab23⤵PID:1511
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1512 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1513
-
-
-
/bin/shsh -c "/bin/uname -n"2⤵PID:1516
-
/bin/uname/bin/uname -n3⤵PID:1518
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /dev/shm/pty3"2⤵PID:1517
-
/bin/cpcp -f /tmp/pty3 /dev/shm/pty33⤵
- Writes file to shm directory
PID:1519
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/dev/shm/pty3\" > /etc/inittab2"2⤵PID:1522
-
/bin/grepgrep -v /dev/shm/pty33⤵PID:1524
-
-
/bin/catcat /etc/inittab3⤵PID:1523
-
-
-
/bin/shsh -c "crontab -l | grep /dev/shm/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /dev/shm/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1525
-
/bin/grepgrep -v "no cron"3⤵PID:1528
-
-
/bin/grepgrep /dev/shm/pty33⤵PID:1527
-
-
/usr/bin/crontabcrontab -l3⤵PID:1526
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1532
-
-
/usr/bin/crontabcrontab -l3⤵PID:1534
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/dev/shm/pty3\" >> /etc/inittab2"2⤵PID:1529
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1530
-
/bin/catcat /etc/inittab23⤵PID:1533
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1535
-
/bin/rmrm -rf /etc/inittab23⤵PID:1537
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1538 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1539
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/tmp/pty3"2⤵PID:1540
-
/bin/cpcp -f /tmp/pty3 /var/tmp/pty33⤵PID:1541
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/tmp/pty3\" > /etc/inittab2"2⤵PID:1543
-
/bin/catcat /etc/inittab3⤵PID:1544
-
-
/bin/grepgrep -v /var/tmp/pty33⤵PID:1546
-
-
-
/bin/shsh -c "crontab -l | grep /var/tmp/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/tmp/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1545
-
/bin/grepgrep -v "no cron"3⤵PID:1549
-
-
/bin/grepgrep /var/tmp/pty33⤵PID:1548
-
-
/usr/bin/crontabcrontab -l3⤵PID:1547
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1553
-
-
/usr/bin/crontabcrontab -l3⤵PID:1555
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/tmp/pty3\" >> /etc/inittab2"2⤵PID:1550
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1551
-
/bin/catcat /etc/inittab23⤵PID:1554
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1556
-
/bin/rmrm -rf /etc/inittab23⤵PID:1557
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1558 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1559
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/lock/pty3"2⤵PID:1560
-
/bin/cpcp -f /tmp/pty3 /var/lock/pty33⤵PID:1561
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/lock/pty3\" > /etc/inittab2"2⤵PID:1563
-
/bin/grepgrep -v /var/lock/pty33⤵PID:1566
-
-
/bin/catcat /etc/inittab3⤵PID:1565
-
-
-
/bin/shsh -c "crontab -l | grep /var/lock/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/lock/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1564
-
/bin/grepgrep -v "no cron"3⤵PID:1569
-
-
/bin/grepgrep /var/lock/pty33⤵PID:1568
-
-
/usr/bin/crontabcrontab -l3⤵PID:1567
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1573
-
-
/usr/bin/crontabcrontab -l3⤵PID:1575
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/lock/pty3\" >> /etc/inittab2"2⤵PID:1570
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1571
-
/bin/catcat /etc/inittab23⤵PID:1574
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1576
-
/bin/rmrm -rf /etc/inittab23⤵PID:1577
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1578 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1579
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/run/pty3"2⤵PID:1580
-
/bin/cpcp -f /tmp/pty3 /var/run/pty33⤵PID:1581
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/run/pty3\" > /etc/inittab2"2⤵PID:1583
-
/bin/grepgrep -v /var/run/pty33⤵PID:1585
-
-
/bin/catcat /etc/inittab3⤵PID:1584
-
-
-
/bin/shsh -c "crontab -l | grep /var/run/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/run/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1586
-
/bin/grepgrep -v "no cron"3⤵PID:1589
-
-
/bin/grepgrep /var/run/pty33⤵PID:1588
-
-
/usr/bin/crontabcrontab -l3⤵PID:1587
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1592
-
-
/usr/bin/crontabcrontab -l3⤵PID:1594
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/run/pty3\" >> /etc/inittab2"2⤵PID:1590
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1593
-
/bin/catcat /etc/inittab23⤵PID:1595
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1596
-
/bin/rmrm -rf /etc/inittab23⤵PID:1597
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1598 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1599
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path /dev/shm/pty3
- Size 47KB
- SHA256 9e28f942262805b5fb59f46568fed53fd4b7dbf6faf666bedaf6ff22dd416572
- MD5 7822cdf1cf8e30d9997c9743f8897f33
- SHA1 0f97481dd038a7a894d31f49148a6d03ddc66921
- SHA512 e82240a28e03744d3e31e2d6af1fc1d381c02a5584a11438767d934e556725d2cc77608c07080b5e3e7d0ab43d8bfc4c96161eab424151f474ab1e0b98546d87
- SSDEEP 768:XI/noIixTExsxBl76KRcGBP6VJ4rFzwgfTvex20qJNdcNm91Qsqx:YPmTExml76KRrB6VJsLk2rdc891G
- TLSH T155230227EE672841F0C50178893E15366F31B6424D4AEF1F2D2E38875AF89DF88AF581
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path /etc/inittab
- Size 83B
- SHA256 0a4eb5870807ef4406d093845baf96e7f8cc59effda08f32a4d73d489264d11a
- MD5 6665b7449ec290b0dd8d4d18c402d000
- SHA1 35f738f53b07e9a2a67ffc577888d42a180a48f0
- SHA512 ac4ad3cb5a7643a0c6f3efa942b31fe6d8f1527550d3e4992d1392f833c888fd3965ea71301e790943143ebaf7870ac623232253c85bb99b3e10c6163cd03a9f
- TLSH T104A00103F0712DAC91F0A1AA1A14018A82439700D6874B18C6433E72D208F0BBD75026
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab
- Size 113B
- SHA256 247ae0a8c28f9e39397c45a9e586b8b2c371878cf8814f9cf41c76aa05939552
- MD5 582c739181f12796f80db1f6ea7f916a
- SHA1 7c645a1c9a0de591d0b6a5b6682aa0d7dac9786f
- SHA512 8d6c2678e3eeb34094507622578f4acd36952a18374244a109c899a30ddbc1193943941fd697a6739994326fe700d43b031b24d8114e80c7cf5698b82d26c972
- TLSH T1A6B00207F4711DBC91F4A5AA1E54019A82435700D5474B18C5477D72D208F0B7D75166
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 54B
- SHA256 e5018fad1758921486984b6c0d39050ec65f06908d99387dc15363ca5557c581
- MD5 ffcc9669bca82a891cd1913d74957256
- SHA1 fc608c695927cfc3b8bd3d5e6fc7a28bdc04942d
- SHA512 4510b7b1eb8727ae6ba851908ac4fce20febb42c095cbf5b29c5acef7081fe0afa21a855eebb88d40668b330c69086dc1f07ead708b23fe0747215c3677beb19
- TLSH T1C3900203F0501D1C91B0A0990A00018582035700D5870B1881432D72D208F0B7D74002
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 142B
- SHA256 bf7a744dcb866fe6c59f07c77d2b579c84b057f79321028b6b45320e4f6a2eed
- MD5 5ff9d0108fcfd3fe6d507a5c71471ff7
- SHA1 dc713d40f4f57f8c428c4e69d8773ce4baa39299
- SHA512 ffca8f8bac306f7910a8d62ab68083ae78206bdbb7efcd4aaeb5bbf7a0bb56841fa70e359daf3954912c649779e409284c40e5ad3c7e562fe04c359c038bb834
- TLSH T151C04803F0322CBC84F0A2EA0E28008A82834300D1438B08C9073D72C208F0B7C7002A
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 25B
- SHA256 bf305607b10a91ee18ceef3ca7843f016eba8e25cfaa8c4bb88ae79c2c06f561
- MD5 d2bfd916c7f8e566ced31a47803f8b64
- SHA1 03a323e7ff70c521402bca605ed8d600ebd02320
- SHA512 2ddb3235d48a0c3111f8e37faa45e2e908c9876789e429fd252fd81fad5242f2bb0c1ab1c32aac0036b9c7608d8f0431812319d6102afd60b172a343e439985b
- MD5 SHA1 SHA512
- Path /var/spool/cron/crontabs/tmp.9avtG3
- Size 300B
- SHA256 a543ac76e57234f9149e4f602504f4c92c3f12c5c8b6e7f894d4b5ded08ac507
- MD5 ebe1219ad776131a1aa9b92a2558b3e0
- SHA1 b2b904089e4d3d787200e1f7c705aa9372614d08
- SHA512 4e03b7772c52619a70aa4c45ba2aae0732e6361e15b1ee5aa13014d303404eb600cceeeb3bc193a03c739b273af69145a3307c0e2e5b186fb8b05c066a725c19
- TLSH T1F8E0C234BBB02CA03D844B38185B60C55A83B939802DAE80F1DE1520524D74FFA00970
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.GEIlpZ
- Size 214B
- SHA256 f8c1d3e1f65f85b33803b536f66039cca4f6df56363d12ad0b4743a8b0c47a14
- MD5 ed20987632e7598eb9061faaa7e5ed3e
- SHA1 b4e071dc286abd71a68dfe3102c89bd4184e8f37
- SHA512 ea9c7146585025dd6dd03523edf6d9dc74f42e13f54c6950edb650bed9a93b22cb5b36c2ec9dd97035aceaffc6e0bd034bffb3a6804d091663d1c13a9ef79348
- TLSH T178D022397F702C303E840B18245B2199AD82A47D900DFE80E2EE0024034EB8EBF40971
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.QdshN1
- Size 257B
- SHA256 296a1c9b0248e7919c45afd1517121eda8555274c14feb2104a1c7bc0d403316
- MD5 8ccac2db5a2619e8ea847a0c49fac6cf
- SHA1 7efc32ab08d29c8a892732f1db7cbfad7f7da5b3
- SHA512 7c3bdea42a63245eccd22234fc10c4c0cf50695c0a208cbd8f72811777ef23d67d964417e665bd379b7744cefe88ebe60e3e000b2d98967003590d8390267b3d
- TLSH T1F8D02E38BBA02C703D440B28184B20896A83B839801DAE80F1EE0020424EB4FBA00960
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.gmOpbc
- Size 387B
- SHA256 fc4b17e18ca742bba132ea8b7117ad8b6dcaeccb2fdbb08f001a7bff5712cea5
- MD5 d7424c8a4508823c36b2fa37443ee8c9
- SHA1 6b17eeaa63a25951494f600679b2337e556c9c43
- SHA512 d4f56a4d83693f45496fb3f4132cc39a2cf22dd4cc69ec19a9afd482ef3087cb6d1f0716ad5d979bd291ff08124ff53dab8eee36e73c67027b3c5318c2065880
- TLSH T1C9E01A34BAB12CE53D888A78189F70D55B83792A502D6E80F1DE6660958D74FBA40AB0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.lrDpq9
- Size 344B
- SHA256 f3bb47c83bce31b9398f43a1a5295c7d3bd7d684502ad4a368a948a994a2fb6f
- MD5 9ff63341c5293bdf264ea23fb6fbada2
- SHA1 b8363c16e3b8b58930df49a5164364f99ba33ba4
- SHA512 8ea622725fecb17af0be5b85b4d802e9bac3689c5d12b4b4b53f62a0941c70c3fb164df5af9fcd2f8ac6a97a2f71435380c99775428ae3923d9d5749f278dc9c
- TLSH T162E08634BBB01CE53D884B78189F70D55B837939402D6E80F1DE5560554D74FF640AB0
- MD5 SHA1 SHA512 TLSH