Analysis
- max time kernel
25s - 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
11/09/2026, 06:14
Behavioral task
behavioral1
Sample
pty3
Resource
ubuntu1804-amd64-20260513-en
10 signatures
150 seconds
General
- Target pty3
- Size 47KB
- Sample260911-gzf8fsck21
- 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/1478-1-0x0000000000400000-0x000000000051add0-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.ZRd1D4 crontab File opened for modification /var/spool/cron/crontabs/tmp.uo7F16 crontab File opened for modification /var/spool/cron/crontabs/tmp.4lbcJ8 crontab File opened for modification /var/spool/cron/crontabs/tmp.jdYKjZ crontab File opened for modification /var/spool/cron/crontabs/tmp.8YfYk1 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 1506 touch 1530 sh 1550 sh 1591 touch 1505 sh 1531 touch 1551 touch 1570 sh 1571 touch 1590 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 oedojhgoi4jumdqanvhu 1478 pty3 -
description ioc Process File opened for reading /proc/931/cmdline pidof File opened for reading /proc/1058/cmdline pidof File opened for reading /proc/1239/stat pidof File opened for reading /proc/1284/stat pidof File opened for reading /proc/10/stat pidof File opened for reading /proc/36/cmdline pidof File opened for reading /proc/664/stat pidof File opened for reading /proc/1074/stat pidof File opened for reading /proc/1479/cmdline pidof File opened for reading /proc/24/cmdline pidof File opened for reading /proc/158/stat pidof File opened for reading /proc/29/stat pidof File opened for reading /proc/895/stat pidof File opened for reading /proc/1320/stat pidof File opened for reading /proc/917/stat pidof File opened for reading /proc/23/stat pidof File opened for reading /proc/454/cmdline pidof File opened for reading /proc/476/cmdline pidof File opened for reading /proc/1320/stat pidof File opened for reading /proc/1339/cmdline pidof File opened for reading /proc/1470/cmdline pidof File opened for reading /proc/173/cmdline pidof File opened for reading /proc/418/stat pidof File opened for reading /proc/1186/stat pidof File opened for reading /proc/1186/cmdline pidof File opened for reading /proc/27/cmdline pidof File opened for reading /proc/172/cmdline pidof File opened for reading /proc/898/stat pidof File opened for reading /proc/1032/stat pidof File opened for reading /proc/115/cmdline pidof File opened for reading /proc/167/cmdline pidof File opened for reading /proc/418/cmdline pidof File opened for reading /proc/671/cmdline pidof File opened for reading /proc/1062/cmdline pidof File opened for reading /proc/1/cmdline pidof File opened for reading /proc/26/stat pidof File opened for reading /proc/511/stat pidof File opened for reading /proc/12/stat pidof File opened for reading /proc/20/stat pidof File opened for reading /proc/954/stat pidof File opened for reading /proc/21/stat pidof File opened for reading /proc/7/cmdline pidof File opened for reading /proc/174/cmdline pidof File opened for reading /proc/176/stat pidof File opened for reading /proc/455/stat pidof File opened for reading /proc/1284/stat pidof File opened for reading /proc/5/cmdline pidof File opened for reading /proc/19/cmdline pidof File opened for reading /proc/137/cmdline pidof File opened for reading /proc/568/stat pidof File opened for reading /proc/950/stat pidof File opened for reading /proc/13/cmdline pidof File opened for reading /proc/98/stat pidof File opened for reading /proc/479/stat pidof File opened for reading /proc/492/cmdline pidof File opened for reading /proc/600/cmdline pidof File opened for reading /proc/84/cmdline pidof File opened for reading /proc/23/stat pidof File opened for reading /proc/1041/cmdline pidof File opened for reading /proc/568/cmdline pidof File opened for reading /proc/601/stat pidof File opened for reading /proc/959/stat pidof File opened for reading /proc/1011/cmdline pidof File opened for reading /proc/1480/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:1478 -
/bin/shsh -c "pidof -x strace > /dev/null"2⤵PID:1479
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/bin/pidofpidof -x strace3⤵
- Reads runtime system information
PID:1480
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/bin/shsh -c "pidof -x tcpdump > /dev/null"2⤵PID:1481
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/bin/pidofpidof -x tcpdump3⤵
- Reads runtime system information
PID:1482
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/bin/shsh -c "cat /etc/inittab | grep -v \"/tmp/pty3\" > /etc/inittab2"2⤵PID:1485
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/bin/catcat /etc/inittab3⤵PID:1487
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/bin/grepgrep -v /tmp/pty33⤵PID:1488
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-
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/bin/shsh -c "crontab -l | grep /tmp/pty3 | grep -v \"no cron\" || (crontab -l ; echo \"* * * * * /tmp/pty3 > /dev/null 2>&1 &\") | crontab -"2⤵PID:1486
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/bin/grepgrep -v "no cron"3⤵PID:1492
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/bin/grepgrep /tmp/pty33⤵PID:1491
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/usr/bin/crontabcrontab -l3⤵PID:1490
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1498
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/usr/bin/crontabcrontab -l3⤵PID:1500
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-
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/bin/shsh -c "crontab -r"2⤵PID:1489
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/usr/bin/crontabcrontab -r3⤵PID:1493
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/bin/shsh -c "echo \"0:2345:respawn:/tmp/pty3\" >> /etc/inittab2"2⤵PID:1496
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1499
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/bin/catcat /etc/inittab23⤵PID:1502
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1503
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/bin/rmrm -rf /etc/inittab23⤵PID:1504
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-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1505 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1506
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/bin/shsh -c "/bin/uname -n"2⤵PID:1509
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/bin/uname/bin/uname -n3⤵PID:1511
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/bin/shsh -c "cp -f /tmp/pty3 /dev/shm/pty3"2⤵PID:1510
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/bin/cpcp -f /tmp/pty3 /dev/shm/pty33⤵
- Writes file to shm directory
PID:1512
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-
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/bin/shsh -c "cat /etc/inittab | grep -v \"/dev/shm/pty3\" > /etc/inittab2"2⤵PID:1514
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/bin/grepgrep -v /dev/shm/pty33⤵PID:1516
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/bin/catcat /etc/inittab3⤵PID:1515
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-
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/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:1517
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/bin/grepgrep -v "no cron"3⤵PID:1520
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/bin/grepgrep /dev/shm/pty33⤵PID:1519
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/usr/bin/crontabcrontab -l3⤵PID:1518
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1525
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/usr/bin/crontabcrontab -l3⤵PID:1527
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-
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/bin/shsh -c "echo \"0:2345:respawn:/dev/shm/pty3\" >> /etc/inittab2"2⤵PID:1521
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1523
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/bin/catcat /etc/inittab23⤵PID:1526
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-
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1528
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/bin/rmrm -rf /etc/inittab23⤵PID:1529
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-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1530 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1531
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-
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/bin/shsh -c "cp -f /tmp/pty3 /var/tmp/pty3"2⤵PID:1532
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/bin/cpcp -f /tmp/pty3 /var/tmp/pty33⤵PID:1533
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/tmp/pty3\" > /etc/inittab2"2⤵PID:1535
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/bin/grepgrep -v /var/tmp/pty33⤵PID:1537
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/bin/catcat /etc/inittab3⤵PID:1536
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/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:1538
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/bin/grepgrep -v "no cron"3⤵PID:1541
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/bin/grepgrep /var/tmp/pty33⤵PID:1540
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/usr/bin/crontabcrontab -l3⤵PID:1539
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1544
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/usr/bin/crontabcrontab -l3⤵PID:1546
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/bin/shsh -c "echo \"0:2345:respawn:/var/tmp/pty3\" >> /etc/inittab2"2⤵PID:1542
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1545
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/bin/catcat /etc/inittab23⤵PID:1547
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1548
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/bin/rmrm -rf /etc/inittab23⤵PID:1549
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1550 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1551
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/bin/shsh -c "cp -f /tmp/pty3 /var/lock/pty3"2⤵PID:1552
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/bin/cpcp -f /tmp/pty3 /var/lock/pty33⤵PID:1553
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/lock/pty3\" > /etc/inittab2"2⤵PID:1555
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/bin/grepgrep -v /var/lock/pty33⤵PID:1557
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/bin/catcat /etc/inittab3⤵PID:1556
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/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:1558
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/bin/grepgrep -v "no cron"3⤵PID:1561
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/bin/grepgrep /var/lock/pty33⤵PID:1560
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/usr/bin/crontabcrontab -l3⤵PID:1559
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1565
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/usr/bin/crontabcrontab -l3⤵PID:1567
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/bin/shsh -c "echo \"0:2345:respawn:/var/lock/pty3\" >> /etc/inittab2"2⤵PID:1562
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1563
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/bin/catcat /etc/inittab23⤵PID:1566
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1568
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/bin/rmrm -rf /etc/inittab23⤵PID:1569
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-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1570 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1571
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/bin/shsh -c "cp -f /tmp/pty3 /var/run/pty3"2⤵PID:1572
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/bin/cpcp -f /tmp/pty3 /var/run/pty33⤵PID:1573
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/run/pty3\" > /etc/inittab2"2⤵PID:1575
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/bin/grepgrep -v /var/run/pty33⤵PID:1578
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/bin/catcat /etc/inittab3⤵PID:1577
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-
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/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:1576
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/bin/grepgrep -v "no cron"3⤵PID:1581
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/bin/grepgrep /var/run/pty33⤵PID:1580
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/usr/bin/crontabcrontab -l3⤵PID:1579
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1585
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/usr/bin/crontabcrontab -l3⤵PID:1587
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/bin/shsh -c "echo \"0:2345:respawn:/var/run/pty3\" >> /etc/inittab2"2⤵PID:1582
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1583
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/bin/catcat /etc/inittab23⤵PID:1586
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1588
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/bin/rmrm -rf /etc/inittab23⤵PID:1589
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1590 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1591
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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.4lbcJ8
- Size 387B
- SHA256 8110171082e999c32c1cdf886039bfa00a0ff2651db3ff0a9ca41b526108a801
- MD5 8d44861886e005c8f8d81b5bd3e6df53
- SHA1 f266125da1a41a1377e997ce008db924efebd9e0
- SHA512 4d578801aeeaf71e17a0cd27688690077a273b1a324cb5411c1bb1cfd00bf1d5f686510aec2f8a0f581d463fbc3bc2e8d2bed1f7892adffa897cd9042d08a6ca
- TLSH T120E01238B6615CE539884A78199F70D41B83756A403D6E51F1CE6620554DB0BB540AB0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.8YfYk1
- Size 257B
- SHA256 501d13f4e0f00033ca9d9eafa29422d9ceafdcd6891ebaa04154cda9d5eb62e1
- MD5 647d78d458007f68e4c7e25a7da19d46
- SHA1 2b3333732f7ea16a3d944037053f69033b520650
- SHA512 c97a3bf7bb9fe021d5469e4e6b3c3f7fc557745f6eabc107c01401751b4a435a794be0c6c95d01be917f5457cb21e6df49c5373a7cf3d54b3cc7a8acfe5215cb
- TLSH T157D02E387B606CB039040A38155B60882A83B47A802D6E50F0CE0220414EF0BB6009A0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.ZRd1D4
- Size 300B
- SHA256 dafa6c3df08612ce52ddeeec5417ae8db9fc71a34854d7397c2975f513136f7e
- MD5 2153253d5969eae9b49b862715c4ad0b
- SHA1 b42d816db42a0471dafeeaf80222ea0b281c8ea5
- SHA512 0b838053022466d22be9f9e518d475315a41e81e493db13901ad3ab8c4ba465f0634ec11e2e972a778ad9311e96005ef28d19be1cb7a6bc350a073ea3f86bc84
- TLSH T1E1E0C23877606CF439444A38155B60C42A83B57A802D6E50F1CE1620514EB0BF6009B0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.jdYKjZ
- Size 214B
- SHA256 fa52a1de03d88cce0cc88514dbe2e145ac077f4a866ffaae1dfd661e73b859bb
- MD5 e99c3f7300a2028e571614546b5d8f10
- SHA1 5d8474cc567cb86cbbe54cb745852a353910c61b
- SHA512 71a9abab56243cbab1f45c609e8d11f9034d0828be9082662f7d079d7d7035ac0dd587376467436403c221901635d94ab5c7400b060e3d490747068a507a04f6
- TLSH T1B8D0223C3B20AC702A040B28216B61586D82A0BE802DAE51F1DE0224024FF4EBB40DB1
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.uo7F16
- Size 344B
- SHA256 f309939e62c313247720278d1c05bc19e6e8e8812c0869ff96f84b9fb36ac524
- MD5 acf8c42fdf817df3f1daf3aa797a5ae7
- SHA1 4c0b43dcb618d5688aad35cba8d8117dbbcb0068
- SHA512 cda8a67d6254736d26f460e8d885e3fdae5456b596f04ff9d86515e9f3bf3af78321adf002149e1ab464e56c0960892f6a6ffb334704eb9ff5883d7020f620a2
- TLSH T17BE0863877715CF539884A78199F70D41B83757A403D6E50F1CF5620554EB0BF640AB0
- MD5 SHA1 SHA512 TLSH