Analysis
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max time kernel
149s -
max time network
148s -
platform
ubuntu-20.04_amd64 -
resource
ubuntu2004-amd64-20240220-en -
resource tags
arch:amd64arch:i386image:ubuntu2004-amd64-20240220-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system -
submitted
20-02-2024 14:46
Behavioral task
behavioral1
Sample
b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
Resource
ubuntu2004-amd64-20240220-en
General
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Target
b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
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Size
1.2MB
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MD5
274a2caa2427a5cbdd52a7eb0dd5860d
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SHA1
8fcfea93ae7049c5f1a7679199d9f7f72deb5940
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SHA256
b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
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SHA512
38fccb019474b23bcc060f87c9707aab5ff721fc398df8fe8bebd681b7962584347b58800602e210b3a42e94262072d5592eae79e44ea57478fb23fb4c4f9645
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SSDEEP
24576:e845rGHu6gVJKG75oFpA0VWeX4Q2y1q2rJp0:745vRVJKGtSA0VWeonu9p0
Malware Config
Signatures
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MrBlack trojan 1 IoCs
resource yara_rule behavioral1/files/fstream-4.dat family_mrblack -
Executes dropped EXE 2 IoCs
ioc pid Process /usr/bin/bsd-port/getty 1454 getty /usr/bin/.sshd 1478 .sshd -
Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
description ioc File opened for reading /proc/cpuinfo -
description ioc File opened for modification /etc/init.d/DbSecuritySpt File opened for modification /etc/init.d/selinux -
Reads system routing table 1 TTPs 1 IoCs
Gets active network interfaces from /proc virtual filesystem.
description ioc File opened for reading /proc/net/route -
Write file to user bin folder 1 TTPs 11 IoCs
description ioc Process File opened for modification /usr/bin/ss cp File opened for modification /usr/bin/bsd-port/getty.lock Process not Found File opened for modification /usr/bin/bsd-port/udevd.lock Process not Found File opened for modification /usr/bin/.sshd cp File opened for modification /usr/bin/dpkgd/lsof cp File opened for modification /usr/bin/ps cp File opened for modification /usr/bin/bsd-port/getty cp File opened for modification /usr/bin/dpkgd/ps cp File opened for modification /usr/bin/dpkgd/ss cp File opened for modification /usr/bin/lsof cp File opened for modification /usr/bin/bsd-port/conf.n Process not Found -
Writes file to system bin folder 1 TTPs 3 IoCs
description ioc Process File opened for modification /bin/lsof cp File opened for modification /bin/ps cp File opened for modification /bin/ss cp -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
description ioc File opened for reading /proc/net/dev File opened for reading /proc/net/route File opened for reading /proc/net/arp -
Reads runtime system information 35 IoCs
Reads data from /proc virtual filesystem.
description ioc Process File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/sys/kernel/version getty File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/sys/kernel/version b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/cmdline insmod File opened for reading /proc/sys/kernel/version .sshd File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/stat Process not Found File opened for reading /proc/cmdline insmod File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems mkdir File opened for reading /proc/meminfo Process not Found File opened for reading /proc/filesystems mkdir -
Writes file to tmp directory 5 IoCs
Malware often drops required files in the /tmp directory.
description ioc File opened for modification /tmp/moni.lod File opened for modification /tmp/bill.lock File opened for modification /tmp/gates.lod File opened for modification /tmp/notify.file File opened for modification /tmp/conf.n
Processes
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/tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c/tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c1⤵
- Reads runtime system information
PID:1430
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt"1⤵PID:1436
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/usr/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt2⤵PID:1437
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt"1⤵PID:1438
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/usr/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt2⤵PID:1439
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt"1⤵PID:1440
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/usr/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt2⤵PID:1441
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt"1⤵PID:1442
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/usr/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt2⤵PID:1443
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt"1⤵PID:1444
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/usr/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt2⤵PID:1445
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/bin/shsh -c "mkdir -p /usr/bin/bsd-port"1⤵PID:1446
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/usr/bin/mkdirmkdir -p /usr/bin/bsd-port2⤵
- Reads runtime system information
PID:1447
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/bin/shsh -c "mkdir -p /usr/bin/bsd-port"1⤵PID:1448
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/usr/bin/mkdirmkdir -p /usr/bin/bsd-port2⤵
- Reads runtime system information
PID:1449
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/bin/shsh -c "cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/bsd-port/getty"1⤵PID:1450
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/usr/bin/cpcp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/bsd-port/getty2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1451
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/bin/shsh -c /usr/bin/bsd-port/getty1⤵PID:1453
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/usr/bin/bsd-port/getty/usr/bin/bsd-port/getty2⤵
- Executes dropped EXE
- Reads runtime system information
PID:1454
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1456
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1457
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1458
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1459
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/bin/shsh -c "cp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/.sshd"1⤵PID:1460
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/usr/bin/cpcp -f /tmp/b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c /usr/bin/.sshd2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1461
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux"1⤵PID:1462
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/usr/bin/lnln -s /etc/init.d/selinux /etc/rc1.d/S99selinux2⤵PID:1463
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux"1⤵PID:1464
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/usr/bin/lnln -s /etc/init.d/selinux /etc/rc2.d/S99selinux2⤵PID:1465
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux"1⤵PID:1466
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/usr/bin/lnln -s /etc/init.d/selinux /etc/rc3.d/S99selinux2⤵PID:1467
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux"1⤵PID:1468
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/usr/bin/lnln -s /etc/init.d/selinux /etc/rc4.d/S99selinux2⤵PID:1469
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux"1⤵PID:1470
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/usr/bin/lnln -s /etc/init.d/selinux /etc/rc5.d/S99selinux2⤵PID:1471
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/bin/shsh -c "mkdir -p /usr/bin/dpkgd"1⤵PID:1472
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/usr/bin/mkdirmkdir -p /usr/bin/dpkgd2⤵
- Reads runtime system information
PID:1473
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/bin/shsh -c "cp -f /bin/lsof /usr/bin/dpkgd/lsof"1⤵PID:1474
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/usr/bin/cpcp -f /bin/lsof /usr/bin/dpkgd/lsof2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1475
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/bin/shsh -c /usr/bin/.sshd1⤵PID:1477
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/usr/bin/.sshd/usr/bin/.sshd2⤵
- Executes dropped EXE
- Reads runtime system information
PID:1478
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1479
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1480
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1481
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1482
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /bin/lsof"1⤵PID:1483
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /bin/lsof2⤵
- Writes file to system bin folder
- Reads runtime system information
PID:1484
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/bin/shsh -c "chmod 0755 /bin/lsof"1⤵PID:1485
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/usr/bin/chmodchmod 0755 /bin/lsof2⤵PID:1486
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/bin/shsh -c "cp -f /bin/ps /usr/bin/dpkgd/ps"1⤵PID:1487
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/usr/bin/cpcp -f /bin/ps /usr/bin/dpkgd/ps2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1488
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1489
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1490
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1491
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1492
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /bin/ps"1⤵PID:1493
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /bin/ps2⤵
- Writes file to system bin folder
- Reads runtime system information
PID:1494
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/bin/shsh -c "chmod 0755 /bin/ps"1⤵PID:1495
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/usr/bin/chmodchmod 0755 /bin/ps2⤵PID:1496
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/bin/shsh -c "cp -f /bin/ss /usr/bin/dpkgd/ss"1⤵PID:1497
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/usr/bin/cpcp -f /bin/ss /usr/bin/dpkgd/ss2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1498
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1499
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1500
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1501
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/usr/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1502
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /bin/ss"1⤵PID:1503
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /bin/ss2⤵
- Writes file to system bin folder
- Reads runtime system information
PID:1504
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/bin/shsh -c "chmod 0755 /bin/ss"1⤵PID:1505
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/usr/bin/chmodchmod 0755 /bin/ss2⤵PID:1506
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1507
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1508
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1509
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1510
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/lsof"1⤵PID:1511
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /usr/bin/lsof2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1512
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/bin/shsh -c "chmod 0755 /usr/bin/lsof"1⤵PID:1513
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/usr/bin/chmodchmod 0755 /usr/bin/lsof2⤵PID:1514
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1515
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1516
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1517
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1518
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/ps"1⤵PID:1519
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /usr/bin/ps2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1520
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/bin/shsh -c "chmod 0755 /usr/bin/ps"1⤵PID:1521
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/usr/bin/chmodchmod 0755 /usr/bin/ps2⤵PID:1522
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1523
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1524
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1525
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/usr/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1526
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/ss"1⤵PID:1527
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/usr/bin/cpcp -f /usr/bin/bsd-port/getty /usr/bin/ss2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1528
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/bin/shsh -c "chmod 0755 /usr/bin/ss"1⤵PID:1529
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/usr/bin/chmodchmod 0755 /usr/bin/ss2⤵PID:1530
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/bin/shsh -c "insmod /usr/bin/bsd-port/xpacket.ko"1⤵PID:1533
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/usr/sbin/insmodinsmod /usr/bin/bsd-port/xpacket.ko2⤵
- Reads runtime system information
PID:1534
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/bin/shsh -c "insmod /tmp/xpacket.ko"1⤵PID:1542
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/usr/sbin/insmodinsmod /tmp/xpacket.ko2⤵
- Reads runtime system information
PID:1543
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
82B
MD5746d8ff7117cc8d09091fa46ea4b80ea
SHA1e239f4c06613fae7b5ccd82acadb888143b9c7db
SHA2565fc747949b36010a1f20f27258e86a69a5e4cc9288cf75dd5c0d966d306612de
SHA5125a9e7f95b68f6eb2ae1aba7ecd540cc4c87b46e44b88631a52bdc6df149bd832b2f95513eb915cb2ecfa1a55c75bf6013375e7ce1ae500f763b8421c59586fa9
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Filesize
36B
MD5993cc15058142d96c3daf7852c3d5ee8
SHA10950b8b391b04dd3895ea33cd3141543ebd2525d
SHA2568171d077918611803d93088409f220c66fae1c670b297e1aa5d8cbd548ce9208
SHA5120c4256c00a3710f97e92581b552682b36b62afc35fe72622c491323c618c19ea62611ac04ccafc3dfcde2254a2ebbd93b69b66795b16e36332293bed83adb928
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Filesize
4B
MD5e11943a6031a0e6114ae69c257617980
SHA1cebf555886eaf921b47b20ad0acb32e85273e624
SHA256ffab53082b58bed639d2197c3b31c8771f61d58ec398645df95e3340d7bc6e28
SHA51241f9d5a7458f76af3d45513d571f2b74cd8fa04418ddc943faf8bef3d523f4ff04b39047cba7ae996b17ccd7846782cf09f6c29cb22ccc0db996eb99981ff3b5
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Filesize
4B
MD599adff456950dd9629a5260c4de21858
SHA1a7d3048f93d82e2e3dd337ea701ef07704939a3b
SHA256f1294f35f19846cd012506eadcc13ecda95eb7ddc6c661bc1b9402c4b00eb703
SHA512b010dc2a8dbdbca81650a3421ad3667c095afe93ec3afe915642a87db4e33e7bf15841673c3a4f2ad018da8ef90dd0eb765d9d8d5fc43d25396313a9e2cd04fb
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Filesize
69B
MD5fbf50da8f95867cb9eed5e13ad2184bc
SHA16a4adee971ee5f17ea885f898ecd76c41b688be1
SHA25681f37bab27933f1cc914e717c76675b7934fd1df6eeba58def0ea84f5e7e9869
SHA5128215f903baffb324357e96084cc5c7a2a2edc864582698b1bb8d5bfb5277815592afafbcbfe9400d1b3ad43ca94c8d74f68ea91d711459debcffc6c71e3b7746
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Filesize
73B
MD5642373c20f32aa530360877cdafd57dd
SHA11445568a904a2903f254cdcfa143b62abbfe3875
SHA2560772ddbc9078c72933a40692263845c46a8551181e9bb3bfdba6afb88c665efd
SHA5121f3891e821cdd40e619244d6e78a9b20259d056a7f106a7cb8161699bceaff6af7ecc7d8e201d3a2f5f69034d08f58e5f7fdf831dafb88fd8e50971b5ba8a43f
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Filesize
1.2MB
MD5274a2caa2427a5cbdd52a7eb0dd5860d
SHA18fcfea93ae7049c5f1a7679199d9f7f72deb5940
SHA256b43f51ff2d22190de7506715402aa89521a55d2a24f15044103dfe6fb2cb860c
SHA51238fccb019474b23bcc060f87c9707aab5ff721fc398df8fe8bebd681b7962584347b58800602e210b3a42e94262072d5592eae79e44ea57478fb23fb4c4f9645
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Filesize
171KB
MD5061386937ec7acf924438a2643a32be0
SHA101a044b9e58839bea3e58c66cb32acc16241bf91
SHA2568a26bbae9eb85aa98ef29cfe5b0a291234db6eb394c3e0c2841983dcf7dda959
SHA5122de2e56ac4c32f47b4a1945ccfb0db378e6d59019ee8004e3e5d2ec8935efb5aa8ee14b8a0b21c61a267e195d42a3232a6dcade8720de06118fd579277f59db7
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Filesize
134KB
MD5d194576b899af45b1d2a448612ec21e5
SHA1492f7d8f28cd4397ce22fcf0d8bf3304ea93465a
SHA256a8cf81f3a1137c999c3cf336507ce120b3065e633ade01db6280d427b7d986ca
SHA512b323babd9580b91772cde29c9f22ae75b27f5ce8ce0268a48ca41713c3545dd72409932a5c48f6af66ac6e43127eb5461d1f686bd667fa1b0e56a1564db3c539
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Filesize
164KB
MD551d83131b398a97dd38555ba57084721
SHA17d392a87f7db787dfa85fbcdf2a5ba6f0b59b4ed
SHA256e429f9d16a4cd64593b94dee8309a427fe8ca57765bf0d2e7b822efd123fe768
SHA512adc7137df75410c2535986c1e86c2e92e58f9bee70094f72f1f7adf3db125720ce281eb3f48474b0e192d672e96cbb1bc6e1ef6b26b10bf76a412c4516948216