Analysis
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max time kernel
151s -
max time network
148s -
platform
ubuntu-18.04_amd64 -
resource
ubuntu1804-amd64-20231222-en -
resource tags
arch:amd64arch:i386image:ubuntu1804-amd64-20231222-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system -
submitted
22-12-2023 15:49
Behavioral task
behavioral1
Sample
e1dc8adf1bf1ebceb2b95c5d4fa02232
Resource
ubuntu1804-amd64-20231222-en
General
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Target
e1dc8adf1bf1ebceb2b95c5d4fa02232
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Size
1.1MB
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MD5
e1dc8adf1bf1ebceb2b95c5d4fa02232
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SHA1
496972d3b4f446ebbce8b3743f3546f14c5fd6cd
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SHA256
89681a305db16332df54709f9adcdf6e95561b658ba4f6a3da2a1026312fb2be
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SHA512
bd77d2d38725f5eeee3e7df4ee8556e58c785ef99ad728a9928bac1d4dc6d72c0c0d6dc684dcafaf7bc6fadede268d271125c1b06ad2fd6ad75928248a80490d
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SSDEEP
24576:4vRE7caCfKGPqVEDNLFxKsfaoI+gIGYuuCol7r:4vREKfPqVE5jKsfaoRHGVo7r
Malware Config
Signatures
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MrBlack trojan 1 IoCs
Processes:
resource yara_rule /usr/bin/bsd-port/getty family_mrblack -
Executes dropped EXE 2 IoCs
Processes:
getty.sshdioc pid process /usr/bin/bsd-port/getty 1612 getty /usr/bin/.sshd 1620 .sshd -
Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
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Processes:
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.
Processes:
description ioc File opened for reading /proc/net/route -
Write file to user bin folder 1 TTPs 7 IoCs
Processes:
cpcpcpcpcpdescription ioc process File opened for modification /usr/bin/lsof cp File opened for modification /usr/bin/bsd-port/getty.lock File opened for modification /usr/bin/bsd-port/udevd.lock File opened for modification /usr/bin/bsd-port/getty cp File opened for modification /usr/bin/.sshd cp File opened for modification /usr/bin/dpkgd/ps cp File opened for modification /usr/bin/dpkgd/lsof cp -
Writes file to system bin folder 1 TTPs 1 IoCs
Processes:
cpdescription ioc process File opened for modification /bin/ps cp -
Reads system network configuration 1 TTPs 3 IoCs
Uses contents of /proc filesystem to enumerate network settings.
Processes:
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 15 IoCs
Reads data from /proc virtual filesystem.
Processes:
cpinsmodcpmkdirmkdircpcpinsmodmkdirmkdircpcpmkdirdescription ioc process File opened for reading /proc/filesystems cp File opened for reading /proc/meminfo 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/stat File opened for reading /proc/filesystems mkdir File opened for reading /proc/filesystems cp File opened for reading /proc/filesystems cp File opened for reading /proc/cmdline insmod 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 cp File opened for reading /proc/filesystems mkdir -
Writes file to tmp directory 5 IoCs
Malware often drops required files in the /tmp directory.
Processes:
description ioc File opened for modification /tmp/moni.lock File opened for modification /tmp/bill.lock File opened for modification /tmp/gates.lock File opened for modification /tmp/notify.file File opened for modification /tmp/conf.n
Processes
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/tmp/e1dc8adf1bf1ebceb2b95c5d4fa02232/tmp/e1dc8adf1bf1ebceb2b95c5d4fa022321⤵PID:1590
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt"1⤵PID:1596
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/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt2⤵PID:1597
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt"1⤵PID:1598
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/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt2⤵PID:1599
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt"1⤵PID:1600
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/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt2⤵PID:1601
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt"1⤵PID:1602
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/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt2⤵PID:1603
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/bin/shsh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt"1⤵PID:1604
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/bin/lnln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt2⤵PID:1605
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/bin/shsh -c "mkdir -p /usr/bin/bsd-port"1⤵PID:1606
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/bin/mkdirmkdir -p /usr/bin/bsd-port2⤵
- Reads runtime system information
PID:1607
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/bin/shsh -c "cp -f /tmp/e1dc8adf1bf1ebceb2b95c5d4fa02232 /usr/bin/bsd-port/getty"1⤵PID:1608
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/bin/cpcp -f /tmp/e1dc8adf1bf1ebceb2b95c5d4fa02232 /usr/bin/bsd-port/getty2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1609
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/bin/shsh -c /usr/bin/bsd-port/getty1⤵PID:1611
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/usr/bin/bsd-port/getty/usr/bin/bsd-port/getty2⤵
- Executes dropped EXE
PID:1612
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1614
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/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1615
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/bin/shsh -c "cp -f /tmp/e1dc8adf1bf1ebceb2b95c5d4fa02232 /usr/bin/.sshd"1⤵PID:1616
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/bin/cpcp -f /tmp/e1dc8adf1bf1ebceb2b95c5d4fa02232 /usr/bin/.sshd2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1617
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/bin/shsh -c /usr/bin/.sshd1⤵PID:1619
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/usr/bin/.sshd/usr/bin/.sshd2⤵
- Executes dropped EXE
PID:1620
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/bin/shsh -c "insmod /usr/lib/xpacket.ko"1⤵PID:1622
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/sbin/insmodinsmod /usr/lib/xpacket.ko2⤵
- Reads runtime system information
PID:1623
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux"1⤵PID:1627
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/bin/lnln -s /etc/init.d/selinux /etc/rc1.d/S99selinux2⤵PID:1629
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux"1⤵PID:1630
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/bin/lnln -s /etc/init.d/selinux /etc/rc2.d/S99selinux2⤵PID:1631
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux"1⤵PID:1633
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/bin/lnln -s /etc/init.d/selinux /etc/rc3.d/S99selinux2⤵PID:1634
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux"1⤵PID:1636
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/bin/lnln -s /etc/init.d/selinux /etc/rc4.d/S99selinux2⤵PID:1638
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/bin/shsh -c "ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux"1⤵PID:1639
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/bin/lnln -s /etc/init.d/selinux /etc/rc5.d/S99selinux2⤵PID:1640
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/bin/shsh -c "mkdir -p /usr/bin/dpkgd"1⤵PID:1641
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/bin/mkdirmkdir -p /usr/bin/dpkgd2⤵
- Reads runtime system information
PID:1642
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/bin/shsh -c "cp -f /bin/ps /usr/bin/dpkgd/ps"1⤵PID:1643
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/bin/cpcp -f /bin/ps /usr/bin/dpkgd/ps2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1644
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/bin/shsh -c "mkdir -p /bin"1⤵PID:1645
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/bin/mkdirmkdir -p /bin2⤵
- Reads runtime system information
PID:1646
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /bin/ps"1⤵PID:1647
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/bin/cpcp -f /usr/bin/bsd-port/getty /bin/ps2⤵
- Writes file to system bin folder
- Reads runtime system information
PID:1648
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/bin/shsh -c "chmod 0755 /bin/ps"1⤵PID:1649
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/bin/chmodchmod 0755 /bin/ps2⤵PID:1650
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/bin/shsh -c "cp -f /usr/bin/lsof /usr/bin/dpkgd/lsof"1⤵PID:1651
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/bin/cpcp -f /usr/bin/lsof /usr/bin/dpkgd/lsof2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1652
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/bin/shsh -c "mkdir -p /usr/bin"1⤵PID:1653
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/bin/mkdirmkdir -p /usr/bin2⤵
- Reads runtime system information
PID:1654
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/bin/shsh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/lsof"1⤵PID:1655
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/bin/cpcp -f /usr/bin/bsd-port/getty /usr/bin/lsof2⤵
- Write file to user bin folder
- Reads runtime system information
PID:1656
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/bin/shsh -c "chmod 0755 /usr/bin/lsof"1⤵PID:1657
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/bin/chmodchmod 0755 /usr/bin/lsof2⤵PID:1658
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/bin/shsh -c "insmod /usr/lib/xpacket.ko"1⤵PID:1660
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/sbin/insmodinsmod /usr/lib/xpacket.ko2⤵
- Reads runtime system information
PID:1661
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50B
MD599e38ffbc9422ada0dfe8d49c720946c
SHA1c9bdd077b5db6c0eeb21fd4fce76d1e422f4419c
SHA256cae3feae6d4d9a2518f722555a5cf6d98fd8c0f809064a8128643236bf257141
SHA5121cd571939f1b80b92ff670669a2f7be83835c09c486b202d9ce94729eefefd1dcabe849c1f6efb405bef13740c9472939311992b655ef8be6713292113163fcc
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Filesize
36B
MD5993cc15058142d96c3daf7852c3d5ee8
SHA10950b8b391b04dd3895ea33cd3141543ebd2525d
SHA2568171d077918611803d93088409f220c66fae1c670b297e1aa5d8cbd548ce9208
SHA5120c4256c00a3710f97e92581b552682b36b62afc35fe72622c491323c618c19ea62611ac04ccafc3dfcde2254a2ebbd93b69b66795b16e36332293bed83adb928
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Filesize
4B
MD55129a5ddcd0dcd755232baa04c231698
SHA1b2a3625de074749ed626d2c2fdf5342d7757a850
SHA256e52522a505f68250e81747aa5386c5c60196c1680f1c89762ab1ab0fbaae39b8
SHA51227f36a56ba7f81569a7edcada4b457648cef41168a85cadf11c6e649295b110569e060047c624376a3dd8372edf153ae15c954cce7e308e8f826884a707d12c9
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Filesize
4B
MD54462bf0ddbe0d0da40e1e828ebebeb11
SHA1510b67b924c227be10a0d00293f43e588a3bf528
SHA256de690d1ae70d10081585d8ed98ed5825ac88fe8029b67a583a760fcc1d505636
SHA5126748afce6be46379be12fa0176e1d0103e02b2250aa2851ec5b92413f8a5f8b9e3125cc769efd21c022f504ebd8521da22e10cffa84f88b11b83b9f322e2143c
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Filesize
37B
MD5809d3c7e3a61db9224ab8355f456ca2b
SHA128dfd390472fd742600771158c8bcda50037de06
SHA256718488d5456e7a2612a2c9e45e6c2e4c3eec12470ee4d2f6eb91fbdf8743d2c8
SHA512595b628da2e6d36645ba8649ee8e70f66c67eba8004ec5ee123ffe910c519145e4dd2f63b8de3b8fe025f19b9e5421a769adac76220d4b692fd8005e4e6a1b97
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Filesize
1.1MB
MD5e1dc8adf1bf1ebceb2b95c5d4fa02232
SHA1496972d3b4f446ebbce8b3743f3546f14c5fd6cd
SHA25689681a305db16332df54709f9adcdf6e95561b658ba4f6a3da2a1026312fb2be
SHA512bd77d2d38725f5eeee3e7df4ee8556e58c785ef99ad728a9928bac1d4dc6d72c0c0d6dc684dcafaf7bc6fadede268d271125c1b06ad2fd6ad75928248a80490d
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Filesize
159KB
MD5e093dc78225e2a0a25e3b137c1c1e442
SHA1c29497cfaae729eb576875e4fdfa400640ab16be
SHA2561190f4dbc7be174de8fd4096c9bf7a28eebfac937d308b7cc533be4a1240d26e
SHA512fe1cc7a65327732eaaee89f427c10239ba822430e34177842f4681068d78d404b1830d808a2a71b1efcc5f126c6d8c053512237421173aaa150e215a672da6f0
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Filesize
130KB
MD5558edc26f8a38fa9788220b9af8a73e7
SHA13024d44e580e9c67f32f6c585d50e2a6cc9a7cac
SHA256b76435c80333d2c1fd18e0e7682f1c9dfb5da8d507e93e3c416f54b481c428d5
SHA512edaa425b441044f015e8f68fffa1664e42372d00dd0e7b0924d24ce947aa8e5f96b3bdc326fa2f8b978e3fcf638a1ceca45a223735db73f1607df66990feb56f