Analysis
- max time kernel
47s - 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
31/07/2026, 06:21
Behavioral task
behavioral1
Sample
pty3
Resource
ubuntu1804-amd64-20260513-en
10 signatures
150 seconds
General
- Target pty3
- Size 47KB
- Sample260731-g4hbbabp21
- 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/1493-1-0x0000000000400000-0x000000000051add0-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.W6tZ5g crontab File opened for modification /var/spool/cron/crontabs/tmp.dhyYrp crontab File opened for modification /var/spool/cron/crontabs/tmp.is8aXr crontab File opened for modification /var/spool/cron/crontabs/tmp.zn4vyu crontab File opened for modification /var/spool/cron/crontabs/tmp.P2477w 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 1522 sh 1523 touch 1547 touch 1566 sh 1587 touch 1546 sh 1567 touch 1586 sh 1606 sh 1607 touch -
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 pswbpdtboca6s5sp 1493 pty3 -
description ioc Process File opened for reading /proc/13/stat pidof File opened for reading /proc/204/cmdline pidof File opened for reading /proc/28/stat pidof File opened for reading /proc/137/stat pidof File opened for reading /proc/723/cmdline pidof File opened for reading /proc/949/stat pidof File opened for reading /proc/1486/stat pidof File opened for reading /proc/485/cmdline pidof File opened for reading /proc/723/stat pidof File opened for reading /proc/24/cmdline pidof File opened for reading /proc/270/stat pidof File opened for reading /proc/79/cmdline pidof File opened for reading /proc/167/cmdline pidof File opened for reading /proc/986/cmdline pidof File opened for reading /proc/163/stat pidof File opened for reading /proc/469/stat pidof File opened for reading /proc/990/cmdline pidof File opened for reading /proc/1091/stat pidof File opened for reading /proc/31/stat pidof File opened for reading /proc/31/cmdline pidof File opened for reading /proc/171/cmdline pidof File opened for reading /proc/602/cmdline pidof File opened for reading /proc/13/cmdline pidof File opened for reading /proc/78/cmdline pidof File opened for reading /proc/176/cmdline pidof File opened for reading /proc/1146/cmdline pidof File opened for reading /proc/166/stat pidof File opened for reading /proc/561/stat pidof File opened for reading /proc/603/cmdline pidof File opened for reading /proc/665/cmdline pidof File opened for reading /proc/9/stat pidof File opened for reading /proc/23/cmdline pidof File opened for reading /proc/1070/stat pidof File opened for reading /proc/15/cmdline pidof File opened for reading /proc/164/cmdline pidof File opened for reading /proc/165/stat pidof File opened for reading /proc/1055/stat pidof File opened for reading /proc/1079/cmdline pidof File opened for reading /proc/16/cmdline pidof File opened for reading /proc/80/cmdline pidof File opened for reading /proc/164/stat pidof File opened for reading /proc/1493/cmdline pidof File opened for reading /proc/943/cmdline pidof File opened for reading /proc/1035/cmdline pidof File opened for reading /proc/1146/cmdline pidof File opened for reading /proc/12/cmdline pidof File opened for reading /proc/175/stat pidof File opened for reading /proc/1193/stat pidof File opened for reading /proc/79/cmdline pidof File opened for reading /proc/84/cmdline pidof File opened for reading /proc/668/cmdline pidof File opened for reading /proc/1087/stat pidof File opened for reading /proc/98/cmdline pidof File opened for reading /proc/525/cmdline pidof File opened for reading /proc/929/stat pidof File opened for reading /proc/1340/cmdline pidof File opened for reading /proc/4/stat pidof File opened for reading /proc/170/stat pidof File opened for reading /proc/910/stat pidof File opened for reading /proc/7/stat pidof File opened for reading /proc/415/stat pidof File opened for reading /proc/1019/cmdline pidof File opened for reading /proc/1146/stat pidof File opened for reading /proc/575/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:1493 -
/bin/shsh -c "pidof -x strace > /dev/null"2⤵PID:1494
-
/bin/pidofpidof -x strace3⤵
- Reads runtime system information
PID:1495
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-
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/bin/shsh -c "pidof -x tcpdump > /dev/null"2⤵PID:1497
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/bin/pidofpidof -x tcpdump3⤵
- Reads runtime system information
PID:1498
-
-
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/bin/shsh -c "cat /etc/inittab | grep -v \"/tmp/pty3\" > /etc/inittab2"2⤵PID:1502
-
/bin/catcat /etc/inittab3⤵PID:1507
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/bin/grepgrep -v /tmp/pty33⤵PID:1508
-
-
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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:1503
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/bin/grepgrep /tmp/pty33⤵PID:1511
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/usr/bin/crontabcrontab -l3⤵PID:1510
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-
/bin/grepgrep -v "no cron"3⤵PID:1513
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1516
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/usr/bin/crontabcrontab -l3⤵PID:1518
-
-
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/bin/shsh -c "crontab -r"2⤵PID:1506
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/usr/bin/crontabcrontab -r3⤵PID:1512
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-
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/bin/shsh -c "echo \"0:2345:respawn:/tmp/pty3\" >> /etc/inittab2"2⤵PID:1514
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1517
-
/bin/catcat /etc/inittab23⤵PID:1519
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-
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1520
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/bin/rmrm -rf /etc/inittab23⤵PID:1521
-
-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1522 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1523
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-
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/bin/shsh -c "/bin/uname -n"2⤵PID:1526
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/bin/uname/bin/uname -n3⤵PID:1528
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/bin/shsh -c "cp -f /tmp/pty3 /dev/shm/pty3"2⤵PID:1527
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/bin/cpcp -f /tmp/pty3 /dev/shm/pty33⤵
- Writes file to shm directory
PID:1529
-
-
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/bin/shsh -c "cat /etc/inittab | grep -v \"/dev/shm/pty3\" > /etc/inittab2"2⤵PID:1531
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/bin/catcat /etc/inittab3⤵PID:1533
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/bin/grepgrep -v /dev/shm/pty33⤵PID:1534
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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:1532
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/bin/grepgrep -v "no cron"3⤵PID:1537
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/usr/bin/crontabcrontab -l3⤵PID:1535
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/bin/grepgrep /dev/shm/pty33⤵PID:1536
-
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1541
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/usr/bin/crontabcrontab -l3⤵PID:1543
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-
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/bin/shsh -c "echo \"0:2345:respawn:/dev/shm/pty3\" >> /etc/inittab2"2⤵PID:1538
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1539
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/bin/catcat /etc/inittab23⤵PID:1542
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-
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1544
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/bin/rmrm -rf /etc/inittab23⤵PID:1545
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-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1546 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1547
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-
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/bin/shsh -c "cp -f /tmp/pty3 /var/tmp/pty3"2⤵PID:1548
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/bin/cpcp -f /tmp/pty3 /var/tmp/pty33⤵PID:1549
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/tmp/pty3\" > /etc/inittab2"2⤵PID:1551
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/bin/grepgrep -v /var/tmp/pty33⤵PID:1553
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/bin/catcat /etc/inittab3⤵PID:1552
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-
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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:1554
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/bin/grepgrep -v "no cron"3⤵PID:1557
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/usr/bin/crontabcrontab -l3⤵PID:1555
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/bin/grepgrep /var/tmp/pty33⤵PID:1556
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1560
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/usr/bin/crontabcrontab -l3⤵PID:1562
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/bin/shsh -c "echo \"0:2345:respawn:/var/tmp/pty3\" >> /etc/inittab2"2⤵PID:1558
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1561
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/bin/catcat /etc/inittab23⤵PID:1563
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-
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1564
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/bin/rmrm -rf /etc/inittab23⤵PID:1565
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1566 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1567
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-
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/bin/shsh -c "cp -f /tmp/pty3 /var/lock/pty3"2⤵PID:1568
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/bin/cpcp -f /tmp/pty3 /var/lock/pty33⤵PID:1569
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/lock/pty3\" > /etc/inittab2"2⤵PID:1571
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/bin/grepgrep -v /var/lock/pty33⤵PID:1573
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/bin/catcat /etc/inittab3⤵PID:1572
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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:1574
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/bin/grepgrep -v "no cron"3⤵PID:1577
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/bin/grepgrep /var/lock/pty33⤵PID:1576
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/usr/bin/crontabcrontab -l3⤵PID:1575
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1581
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/usr/bin/crontabcrontab -l3⤵PID:1583
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/bin/shsh -c "echo \"0:2345:respawn:/var/lock/pty3\" >> /etc/inittab2"2⤵PID:1578
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1579
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/bin/catcat /etc/inittab23⤵PID:1582
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-
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1584
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/bin/rmrm -rf /etc/inittab23⤵PID:1585
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-
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1586 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1587
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-
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/bin/shsh -c "cp -f /tmp/pty3 /var/run/pty3"2⤵PID:1588
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/bin/cpcp -f /tmp/pty3 /var/run/pty33⤵PID:1589
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/bin/shsh -c "cat /etc/inittab | grep -v \"/var/run/pty3\" > /etc/inittab2"2⤵PID:1591
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/bin/grepgrep -v /var/run/pty33⤵PID:1593
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/bin/catcat /etc/inittab3⤵PID:1592
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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:1594
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/bin/grepgrep -v "no cron"3⤵PID:1597
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/bin/grepgrep /var/run/pty33⤵PID:1596
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/usr/bin/crontabcrontab -l3⤵PID:1595
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/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
PID:1601
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/usr/bin/crontabcrontab -l3⤵PID:1603
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/bin/shsh -c "echo \"0:2345:respawn:/var/run/pty3\" >> /etc/inittab2"2⤵PID:1598
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/bin/shsh -c "cat /etc/inittab2 > /etc/inittab"2⤵PID:1599
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/bin/catcat /etc/inittab23⤵PID:1602
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/bin/shsh -c "rm -rf /etc/inittab2"2⤵PID:1604
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/bin/rmrm -rf /etc/inittab23⤵PID:1605
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/bin/shsh -c "touch -acmr /bin/ls /etc/inittab"2⤵
- Indicator Removal: Timestomp
PID:1606 -
/usr/bin/touchtouch -acmr /bin/ls /etc/inittab3⤵
- Indicator Removal: Timestomp
PID:1607
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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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.P2477w
- Size 387B
- SHA256 13b8999010cc5d4d1ba5a32ddc56bf3c6968cbe548d1702ea54f4ff705412fc2
- MD5 19fd481d31c8de821783134c79e23d59
- SHA1 e2210e32c0a97d6e0ac8a526947fa5139dec5562
- SHA512 0b0dfbbc6e82544b3f704ab3130210fc1bee17ae211190436ecfb3212d1f37faf99dc6647a93b0706b0885ce43a1ce96a80f9503ab487b43d1c3c9f9e9460eaa
- TLSH T10CE01A38B7A16CE539888AB818AF70D51BC3796A402D6E90F1CEA620958D74BB551AB0
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.W6tZ5g
- Size 214B
- SHA256 89ffea92e0d819065db309aae3c96e9f0d5d9ea871b63796c0207f869f84068f
- MD5 40c0ae7baf46251f2ba4e67aa4c5875c
- SHA1 742c27897aa589d8895e33e393063261984a07f1
- SHA512 625bb8625380912be65b5455e53c029b2a60c364232718d89613588681f630f999c7f28842903f2286accf1d01d1837d70e1262e0015ff9ecb7d48bf6bbac02b
- TLSH T1A0D0223C3B207D303A040B6864AF219A5D92A0BE801DAF90E1DD0124028EB9EBA51E71
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.dhyYrp
- Size 257B
- SHA256 cbdae13b751c9a1a5893dba0f43c30c7060d7e33da13e0d3bea4337f074e90ac
- MD5 f36b0ae32e76ebeaefd6accd96dce652
- SHA1 2ba19d4475957a10ccbf773edc5864f5f44b5f21
- SHA512 1d4a0c9ffd369aa397e3e0811b6af55eeaedc086fcf9df5e15b7074c3db585d55d09eabc4e827313f83b0ddf34ab438a6ac2a79c95d02a0e58aac68b34c6d9ad
- TLSH T1BAD097387B602C7039040B38189F20CA1E83B47E802DAF90F0CE0120418DB4FFA10E70
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.is8aXr
- Size 300B
- SHA256 b90a439da9d30d927f0f7ec613234e02bec37a3807be59a0d8c5b6c3498d8395
- MD5 5cf1e667efdb0f621bd8121cae4eb861
- SHA1 4ed51f39b222cf83cfceebde53b5112ae5291e73
- SHA512 a5f3d9ad527bca221d01eaa1a08e81f2de7fdefa2c16b57886d2b8b661c4b85202b33fe6e74a47a09b470dc97a589276bff829a8fb4b19fa5eca02855951ca94
- TLSH T1D3E0C23877602CB439444A78189F20C51A83B56A802D6F90F1CE5620518D74BF611E70
- MD5 SHA1 SHA512 TLSH
- Path /var/spool/cron/crontabs/tmp.zn4vyu
- Size 344B
- SHA256 10777cf0fcfbea991dc36d2af2c16094ebb519005f19d0187065d88258838aa2
- MD5 028faa01d59fe18309fdd09ebffbfbbe
- SHA1 02ddb95fd82021ea70c41f435592b191821e74ad
- SHA512 18337b64c021cc07d2edb17801ca6672c393cbf74a543c621ab2d0a08d2eeae12879b00f626a0de7eeca62888d67af482b3262995d44767d2be46837e8916e21
- TLSH T10CE0863877712CF539884A78189F70D51BC3756A402D6F90F1CE5620518D74BF551EB0
- MD5 SHA1 SHA512 TLSH