Analysis
- max time kernel
145s - max time network
147s - 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
29/07/2026, 12:19
Behavioral task
behavioral1
Sample
pty4
Resource
ubuntu1804-amd64-20260513-en
10 signatures
150 seconds
General
- Target pty4
- Size 43KB
- Sample260729-phlevav1fv
- SHA256 8d411d1ec4327e5a10b8ffddaacdac17a0a6acab43db81202119604b35c7317b
- MD5 e0c0873263eb23d5092363f938ea9ca2
- SHA1 0ccd5083fa4a223b8b4cb2305c34e98c13accb92
- SHA512 2c814069c9ee07dca10adec30774b4c5e1fea06e58007fdebe3214aa0a4f20b56e333df201318e336a6b773a63603eb7f2f91a78856665bbdcd71c4a370fd01d
- SSDEEP 768:+dFzMBVZYHMJjNN5/hb1dziL2ts+hL7+BoPLJN1bTZCwWkx1ASMCijh:QzyZYkjrb1duL+nRX13ZCdkx1ASXi1
- TLSH T17713029051801BBBFA9A763A68C10D5CB677F0C18C4FA78F27A46CAD24B253E8534CD6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Kaiten/Tsunami Payload 1 IoCs
resource yara_rule behavioral1/memory/1494-1-0x0000000008048000-0x0000000008061884-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.5bDK84 crontab File opened for modification /var/spool/cron/crontabs/tmp.wsddO9 crontab File opened for modification /var/spool/cron/crontabs/tmp.QstFQb crontab File opened for modification /var/spool/cron/crontabs/tmp.bDEURe crontab File opened for modification /var/spool/cron/crontabs/tmp.L7OAei 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 1520 sh 1545 sh 1565 sh 1566 touch 1586 touch 1605 sh 1606 touch 1521 touch 1546 touch 1585 sh -
resource yara_rule behavioral1/files/fstream-8.dat upx - Changes its process name 1 IoCs
description pid Process Changes the process name, possibly in an attempt to hide itself 1494 pty4 -
description ioc Process File opened for reading /proc/80/stat pidof File opened for reading /proc/508/stat pidof File opened for reading /proc/423/cmdline pidof File opened for reading /proc/1104/cmdline pidof File opened for reading /proc/9/stat pidof File opened for reading /proc/82/stat pidof File opened for reading /proc/171/cmdline pidof File opened for reading /proc/1077/stat pidof File opened for reading /proc/1492/cmdline pidof File opened for reading /proc/filesystems cp File opened for reading /proc/5/cmdline pidof File opened for reading /proc/24/stat pidof File opened for reading /proc/34/cmdline pidof File opened for reading /proc/167/stat pidof File opened for reading /proc/322/cmdline pidof File opened for reading /proc/529/stat pidof File opened for reading /proc/587/stat pidof File opened for reading /proc/609/stat pidof File opened for reading /proc/137/cmdline pidof File opened for reading /proc/531/cmdline pidof File opened for reading /proc/672/cmdline pidof File opened for reading /proc/915/stat pidof File opened for reading /proc/1057/cmdline pidof File opened for reading /proc/1032/stat pidof File opened for reading /proc/25/stat pidof File opened for reading /proc/412/stat pidof File opened for reading /proc/322/stat pidof File opened for reading /proc/1064/stat pidof File opened for reading /proc/166/stat pidof File opened for reading /proc/1074/stat pidof File opened for reading /proc/1077/stat pidof File opened for reading /proc/475/stat pidof File opened for reading /proc/554/cmdline pidof File opened for reading /proc/987/cmdline pidof File opened for reading /proc/1044/cmdline pidof File opened for reading /proc/1084/cmdline pidof File opened for reading /proc/15/cmdline pidof File opened for reading /proc/23/cmdline pidof File opened for reading /proc/161/stat pidof File opened for reading /proc/608/stat pidof File opened for reading /proc/676/cmdline pidof File opened for reading /proc/18/cmdline pidof File opened for reading /proc/30/cmdline pidof File opened for reading /proc/472/stat pidof File opened for reading /proc/554/cmdline pidof File opened for reading /proc/1314/stat pidof File opened for reading /proc/951/cmdline pidof File opened for reading /proc/971/stat pidof File opened for reading /proc/1460/cmdline pidof File opened for reading /proc/164/cmdline pidof File opened for reading /proc/15/cmdline pidof File opened for reading /proc/587/stat pidof File opened for reading /proc/910/cmdline pidof File opened for reading /proc/22/stat pidof File opened for reading /proc/29/stat pidof File opened for reading /proc/168/stat pidof File opened for reading /proc/172/cmdline pidof File opened for reading /proc/531/stat pidof File opened for reading /proc/540/stat pidof File opened for reading /proc/971/stat pidof File opened for reading /proc/978/cmdline pidof File opened for reading /proc/508/cmdline pidof File opened for reading /proc/908/stat pidof File opened for reading /proc/1053/stat 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/pty4 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 pty4
Processes
-
/tmp/pty4/tmp/pty41⤵
- Changes its process name
- Writes file to tmp directory
PID:1494 -
/bin/shsh -c "pidof -x strace > /dev/null"2⤵PID:1495
-
/bin/pidofpidof -x strace3⤵
- Reads runtime system information
PID:1496
-
-
-
/bin/shsh -c "pidof -x tcpdump > /dev/null"2⤵PID:1498
-
/bin/pidofpidof -x tcpdump3⤵
- Reads runtime system information
PID:1499
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/tmp/pty4\" > /etc/inittab2"2⤵PID:1502
-
/bin/catcat /etc/inittab3⤵PID:1503
-
-
/bin/grepgrep -v /tmp/pty43⤵PID:1504
-
-
-
/bin/shsh -c "crontab -l | grep /tmp/pty4 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /tmp/pty4 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1505
-
/bin/grepgrep -v "no cron"3⤵PID:1509
-
-
/bin/grepgrep /tmp/pty43⤵PID:1508
-
-
/usr/bin/crontabcrontab -l3⤵PID:1507
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1515
-
-
/usr/bin/crontabcrontab -l3⤵PID:1516
-
-
-
/bin/shsh -c "crontab -r"2⤵PID:1506
-
/usr/bin/crontabcrontab -r3⤵PID:1511
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/tmp/pty4\" >> /etc/inittab2"2⤵PID:1512
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1513
-
/bin/catcat /etc/inittab23⤵PID:1517
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1518
-
/bin/rmrm -rf /etc/inittab23⤵PID:1519
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1520 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1521
-
-
-
/bin/shsh -c "/bin/uname -n"2⤵PID:1524
-
/bin/uname/bin/uname -n3⤵PID:1526
-
-
-
/bin/shsh -c "cp -f /tmp/pty4 /dev/shm/pty4"2⤵PID:1525
-
/bin/cpcp -f /tmp/pty4 /dev/shm/pty43⤵
- Writes file to shm directory
PID:1527
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/dev/shm/pty4\" > /etc/inittab2"2⤵PID:1529
-
/bin/grepgrep -v /dev/shm/pty43⤵PID:1531
-
-
/bin/catcat /etc/inittab3⤵PID:1530
-
-
-
/bin/shsh -c "crontab -l | grep /dev/shm/pty4 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /dev/shm/pty4 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1532
-
/bin/grepgrep -v "no cron"3⤵PID:1535
-
-
/bin/grepgrep /dev/shm/pty43⤵PID:1534
-
-
/usr/bin/crontabcrontab -l3⤵PID:1533
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1540
-
-
/usr/bin/crontabcrontab -l3⤵PID:1542
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/dev/shm/pty4\" >> /etc/inittab2"2⤵PID:1536
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1538
-
/bin/catcat /etc/inittab23⤵PID:1541
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1543
-
/bin/rmrm -rf /etc/inittab23⤵PID:1544
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1545 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1546
-
-
-
/bin/shsh -c "cp -f /tmp/pty4 /var/tmp/pty4"2⤵PID:1547
-
/bin/cpcp -f /tmp/pty4 /var/tmp/pty43⤵PID:1548
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/tmp/pty4\" > /etc/inittab2"2⤵PID:1550
-
/bin/grepgrep -v /var/tmp/pty43⤵PID:1552
-
-
/bin/catcat /etc/inittab3⤵PID:1551
-
-
-
/bin/shsh -c "crontab -l | grep /var/tmp/pty4 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/tmp/pty4 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1553
-
/bin/grepgrep -v "no cron"3⤵PID:1556
-
-
/bin/grepgrep /var/tmp/pty43⤵PID:1555
-
-
/usr/bin/crontabcrontab -l3⤵PID:1554
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1560
-
-
/usr/bin/crontabcrontab -l3⤵PID:1562
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/tmp/pty4\" >> /etc/inittab2"2⤵PID:1557
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1558
-
/bin/catcat /etc/inittab23⤵PID:1561
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1563
-
/bin/rmrm -rf /etc/inittab23⤵PID:1564
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1565 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1566
-
-
-
/bin/shsh -c "cp -f /tmp/pty4 /var/lock/pty4"2⤵PID:1567
-
/bin/cpcp -f /tmp/pty4 /var/lock/pty43⤵
- Reads runtime system information
PID:1568
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/lock/pty4\" > /etc/inittab2"2⤵PID:1570
-
/bin/grepgrep -v /var/lock/pty43⤵PID:1572
-
-
/bin/catcat /etc/inittab3⤵PID:1571
-
-
-
/bin/shsh -c "crontab -l | grep /var/lock/pty4 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/lock/pty4 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1573
-
/bin/grepgrep -v "no cron"3⤵PID:1576
-
-
/bin/grepgrep /var/lock/pty43⤵PID:1575
-
-
/usr/bin/crontabcrontab -l3⤵PID:1574
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1579
-
-
/usr/bin/crontabcrontab -l3⤵PID:1581
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/lock/pty4\" >> /etc/inittab2"2⤵PID:1577
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1580
-
/bin/catcat /etc/inittab23⤵PID:1582
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1583
-
/bin/rmrm -rf /etc/inittab23⤵PID:1584
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1585 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1586
-
-
-
/bin/shsh -c "cp -f /tmp/pty4 /var/run/pty4"2⤵PID:1587
-
/bin/cpcp -f /tmp/pty4 /var/run/pty43⤵PID:1588
-
-
-
/bin/shsh -c "cat /etc/inittab | grep -v \"/var/run/pty4\" > /etc/inittab2"2⤵PID:1590
-
/bin/grepgrep -v /var/run/pty43⤵PID:1592
-
-
/bin/catcat /etc/inittab3⤵PID:1591
-
-
-
/bin/shsh -c "crontab -l | grep /var/run/pty4 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /var/run/pty4 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1593
-
/bin/grepgrep -v "no cron"3⤵PID:1596
-
-
/bin/grepgrep /var/run/pty43⤵PID:1595
-
-
/usr/bin/crontabcrontab -l3⤵PID:1594
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1599
-
-
/usr/bin/crontabcrontab -l3⤵PID:1601
-
-
-
/bin/shsh -c "echo \"0:2345:respawn:/var/run/pty4\" >> /etc/inittab2"2⤵PID:1597
-
-
/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1600
-
/bin/catcat /etc/inittab23⤵PID:1602
-
-
-
/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1603
-
/bin/rmrm -rf /etc/inittab23⤵PID:1604
-
-
-
/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1605 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1606
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path /dev/shm/pty4
- Size 43KB
- SHA256 8d411d1ec4327e5a10b8ffddaacdac17a0a6acab43db81202119604b35c7317b
- MD5 e0c0873263eb23d5092363f938ea9ca2
- SHA1 0ccd5083fa4a223b8b4cb2305c34e98c13accb92
- SHA512 2c814069c9ee07dca10adec30774b4c5e1fea06e58007fdebe3214aa0a4f20b56e333df201318e336a6b773a63603eb7f2f91a78856665bbdcd71c4a370fd01d
- SSDEEP 768:+dFzMBVZYHMJjNN5/hb1dziL2ts+hL7+BoPLJN1bTZCwWkx1ASMCijh:QzyZYkjrb1duL+nRX13ZCdkx1ASXi1
- TLSH T17713029051801BBBFA9A763A68C10D5CB677F0C18C4FA78F27A46CAD24B253E8534CD6
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path /etc/inittab
- Size 83B
- SHA256 7fbf43311d4796b4039c1b4336eee7ca6552be98203d1858d14cb6e37ea877e5
- MD5 c3df7eba718ab5494124e12efd721afb
- SHA1 1b42fd91a51a3a6a2a3e2baec1cd8abadd2c631f
- SHA512 f424c4d2d6f53c5c2ef64db057b52803146a17cf5492728709ecb7f2b07b8349890d8be3a689aeb68cd64333c1b527a8a39943b119a57e07c4ea97af76f1787f
- TLSH T103A00103F0712D9EA1F0A1A81B140202A2439700DE876B18C6433F72E20AF2AAD75026
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab
- Size 113B
- SHA256 7afb3d064700bcb2fec3b727de8e99eb2afebb919d4222ad3a92936b0ed714ae
- MD5 3eb623e3ff1934c48a37ba1dd32cebaf
- SHA1 42cad0982531e126bcf501cc46b41e590c5cc7fc
- SHA512 f3fc2e0504562090b2f9f42d8b90bfa074734dc9c2048e27e0f4e103dabca99a2abf471b2d61ec35001d03ce4b796a8cd140f20f74d35c83a52819dfececac3c
- TLSH T162B00207F4711DAEA1F4A5A81F540216A2435700DD476B18C5477F72E20AF2A6D75166
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 54B
- SHA256 031e3a9a99c03a49fea757df0d3ff52fc5dbcc07d37f2674efe21cae6529c370
- MD5 c61fe27473535c7ac532d70ed8182832
- SHA1 d5f3a809df3470eae8dd773da6727c33b46bf1dc
- SHA512 6d2e16886c925795851c4bde0aca83ef7618530756f83efda7f3102970b80d5ad300454ec2473b822c6cc058a57b63d2dd79d5d0a88852ecc184a1182ea6b3a8
- TLSH T160900203F0501D0DA1B0A0980B000201A2035700DD871B1881432E72E20AF2A6D74002
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 142B
- SHA256 53aca2a49a912146645bbb47d0abb1827520434abb907cadf77bc55b2572b099
- MD5 bd60346a01f1b4bde9993a6baa8183a2
- SHA1 ec6a317ad472790b18d0b662ac6992e226041c3e
- SHA512 c960e7d898096547cecee2376226203f2ef9ae88185b6ad52a4ecac742aa60c1ea699fc167a86201b9bc0102f029acc296c8a7bcd4e9f5793d5310cdb4faa098
- TLSH T1D6C04C03F0311CAEA4F061E80F180202A2434300DD436B08C5073F72E20AF2A6C70026
- MD5 SHA1 SHA512 TLSH
- Path /etc/inittab2
- Size 25B
- SHA256 a1a915c2d2d8b0997cea0c5885f31609e34ba6f5e9761f7a1fe5c292ae743dea
- MD5 6b150c167c13fb201746d5c31cb071c6
- SHA1 529600487af6ceb1f6686fea21eb40fd722ee626
- SHA512 4b62ff9c05083a4a7f603308e3c673b031eeb4813c26fd5dc130e377609558a8c07818657f96b38f7eaa2fc0a0915b90865620f230a056dc4ec8bb87ee4a9213
- MD5 SHA1 SHA512
- Path /var/spool/cron/crontabs/tmp.5bDK84
- Size 214B
- SHA256 c65f93e3e5a110b175036967a8b9ceb133d8946535aad71206f50db7310d339f
- MD5 422246041db10a73d6e21bda18afc8da
- SHA1 5e9560d9e601b44ce8bae6558d331810228b97c0
- SHA512 f5dbe97e7bb6168cb970b70bf2c8a8e022ee1e7757273b0cbb43aabe9b06b704f3add703db05ec72a619d9a579fce18201c2dbc894eb8f5d444dd467ad645eda
- TLSH T198D0223E3F302C302E060B1812AF225DAEA2A1BE800DAE81F1DD1438020E34EAB90931
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.L7OAei
- Size 387B
- SHA256 a6aa697bd11d02ca768b7af67ea463b7c5fe3b4f47451b9305da14ed275e3ef2
- MD5 2b07fca07fd7c193506dacf04f3e38fc
- SHA1 d9c388e093e2c810d5e79352c06f41b2b77a3c82
- SHA512 7188f7515ba974d6e58dcd70191e4c9c3b09d76fd950adcda880a5721aa1143bcbc6062636d9f5d2bb8cfe8156c77789411ce431f745dc22aa27c0e8880883f8
- TLSH T1D4E0D838B7701CE53C8A4A7C0A9F71C42BC37526442C2E82F0CE6430514E30BE640A30
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.QstFQb
- Size 300B
- SHA256 a531f4754d5458d7f08a157d31b134e44cbb6575c3dd6ed1bf77685f3f5a810d
- MD5 d4004a720051724e5f476abdfa926a27
- SHA1 a5d8185daea1413a2e3774269ea8e22a7f663923
- SHA512 4cb2bd67673430ab4bcf860d9bc2a17548ad5f2b3ce63943814cae73c622665dd64e28f7f89776d7cab57af2f24a020588312ae9dd8c89b55d6b97ff6bd6d4c7
- TLSH T1EBE0C2397B702CB43D464A38169F31896B93B56A842D6E81F1CE1434514E30BE650930
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.bDEURe
- Size 344B
- SHA256 1ff0cc882eac0e495d6cdb580e1babcb372bc34ab518584d6c112929f3a380b9
- MD5 5a3c1332f020952f1c686dd596c7a3e4
- SHA1 2648eff0063bbe9b3d3391a100bbebaa013f8235
- SHA512 18fc9e50148445e74cd7d67cd8a5f146e7ac1e7cda0e52a3bc98cd2a1171880a7e0b9157ec4240b31f9159e59792832ff4065d9df31feb2f49a52653c0742a84
- TLSH T168E086397B701CF53D8A4A781A9F71996BD37566442D6E81F1CE6434514E30BE650A30
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.wsddO9
- Size 257B
- SHA256 8ae13bbed52523a945f0e63c49a4a9f95086d10c0ce532e7b82643e7a38e3102
- MD5 2313554fc67a223b35d42a577838c0d8
- SHA1 79752cc2c0cb39adaa489938bd4605778b954c61
- SHA512 c726d021a825b3beae52d0736a02302113519f206c4aba876906cad8438a32f50046f261a562eaa335a9be89dddb7bfab3c0309674be7ac02ce5cda4026402c9
- TLSH T164D02E397B602C703D060A28069B22896B93B56A801D6E81F0CE0434420E30BA750930
- MD5 SHA1 SHA512 TLSH