mrblack | 0f59819c0394537dc96ff243c24d432fc47f44fc72cfc4ccba43c8e5bde8bcf2

Analysis

max time kernel
149s
max time network
147s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20240226-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20240226-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
07-05-2024 19:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
Size

1.2MB
MD5

21652156824d4a074e1b690d4f6bfad7
SHA1

43f2d4779ee62982f574143e86cb95c65e1fdd49
SHA256

0f59819c0394537dc96ff243c24d432fc47f44fc72cfc4ccba43c8e5bde8bcf2
SHA512

7298344489af32ab2d967200ed70eea00096090d09e809d9288d3a5945b108abcd1ca2a939941eb4b040972a243c2ba3990ec20d2744caa11fdf125e77dc22d4
SSDEEP

24576:e845rlHu6gVJKG75oFpA0VW/X4G2y1q2rJp0:745wRVJKGtSA0VW/oVu9p0

Score

10^/10

mrblack antivm botnet persistence trojan

Malware Config

Signatures

MrBlack Trojan
IoT botnet which infects routers to be used for DDoS attacks.
trojan botnet mrblack

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	1626	getty
/usr/bin/.sshd	1650	.sshd

Modifies init.d 1 TTPs 2 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

description	ioc	Process
File opened for modification	/etc/init.d/DbSecuritySpt	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/etc/init.d/selinux	getty

Reads system routing table 1 TTPs 2 IoCs

Gets active network interfaces from /proc virtual filesystem.

System Network Configuration Discovery

T1016

description	ioc	Process
File opened for reading	/proc/net/route	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for reading	/proc/net/route	getty

Write file to user bin folder 1 TTPs 10 IoCs

Hijack Execution Flow

T1574

description	ioc	Process
File opened for modification	/usr/bin/lsof	cp
File opened for modification	/usr/bin/bsd-port/conf.n	getty
File opened for modification	/usr/bin/bsd-port/getty	cp
File opened for modification	/usr/bin/bsd-port/getty.lock	getty
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
File opened for modification	/usr/bin/bsd-port/getty.lock	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/usr/bin/bsd-port/udevd.lock	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/usr/bin/dpkgd/ss	cp

Writes file to system bin folder 1 TTPs 2 IoCs

Hijack Execution Flow

T1574

description	ioc	Process
File opened for modification	/bin/ps	cp
File opened for modification	/bin/ss	cp

Checks CPU configuration 1 TTPs 2 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
File opened for reading	/proc/cpuinfo	getty
File opened for reading	/proc/cpuinfo	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118

Reads system network configuration 1 TTPs 6 IoCs

Uses contents of /proc filesystem to enumerate network settings.

System Network Configuration Discovery

T1016

description	ioc	Process
File opened for reading	/proc/net/route	getty
File opened for reading	/proc/net/arp	getty
File opened for reading	/proc/net/dev	getty
File opened for reading	/proc/net/dev	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for reading	/proc/net/route	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for reading	/proc/net/arp	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118

Reads runtime system information 25 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/stat	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
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	cp
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/stat	getty
File opened for reading	/proc/cmdline	insmod
File opened for reading	/proc/meminfo	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
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/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	cp
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/filesystems	mkdir
File opened for reading	/proc/meminfo	getty

Writes file to tmp directory 8 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/notify.file	.sshd
File opened for modification	/tmp/conf.n	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/tmp/gates.lod	.sshd
File opened for modification	/tmp/moni.lod	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/tmp/bill.lock	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/tmp/gates.lod	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/tmp/notify.file	21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
File opened for modification	/tmp/moni.lod	.sshd

/tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
/tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118
1⤵
- Modifies init.d
- Reads system routing table
- Write file to user bin folder
- Checks CPU configuration
- Reads system network configuration
- Reads runtime system information
- Writes file to tmp directory
PID:1591
- /bin/sh
  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt"
  2⤵
  PID:1608
- - /bin/ln
    ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt
    3⤵
    PID:1609
- /bin/sh
  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt"
  2⤵
  PID:1610
- - /bin/ln
    ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt
    3⤵
    PID:1611
- /bin/sh
  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt"
  2⤵
  PID:1612
- - /bin/ln
    ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt
    3⤵
    PID:1613
- /bin/sh
  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt"
  2⤵
  PID:1614
- - /bin/ln
    ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt
    3⤵
    PID:1615
- /bin/sh
  sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt"
  2⤵
  PID:1616
- - /bin/ln
    ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt
    3⤵
    PID:1617
- /bin/sh
  sh -c "mkdir -p /usr/bin/bsd-port"
  2⤵
  PID:1618
- - /bin/mkdir
    mkdir -p /usr/bin/bsd-port
    3⤵
    - Reads runtime system information
    PID:1619
- /bin/sh
  sh -c "mkdir -p /usr/bin/bsd-port"
  2⤵
  PID:1620
- - /bin/mkdir
    mkdir -p /usr/bin/bsd-port
    3⤵
    - Reads runtime system information
    PID:1621
- /bin/sh
  sh -c "cp -f /tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118 /usr/bin/bsd-port/getty"
  2⤵
  PID:1622
- - /bin/cp
    cp -f /tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118 /usr/bin/bsd-port/getty
    3⤵
    - Write file to user bin folder
    - Reads runtime system information
    PID:1623
- /bin/sh
  sh -c /usr/bin/bsd-port/getty
  2⤵
  PID:1625
- - /usr/bin/bsd-port/getty
    /usr/bin/bsd-port/getty
    3⤵
    - Executes dropped EXE
    - Modifies init.d
    - Reads system routing table
    - Write file to user bin folder
    - Checks CPU configuration
    - Reads system network configuration
    - Reads runtime system information
    PID:1626
  - - /bin/sh
      sh -c "ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux"
      4⤵
      PID:1634
    - - /bin/ln
        
        ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux
        5⤵
        
        PID:1635
  - - /bin/sh
      sh -c "ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux"
      4⤵
      PID:1636
    - - /bin/ln
        
        ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux
        5⤵
        
        PID:1637
  - - /bin/sh
      sh -c "ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux"
      4⤵
      PID:1638
    - - /bin/ln
        
        ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux
        5⤵
        
        PID:1639
  - - /bin/sh
      sh -c "ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux"
      4⤵
      PID:1640
    - - /bin/ln
        
        ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux
        5⤵
        
        PID:1641
  - - /bin/sh
      sh -c "ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux"
      4⤵
      PID:1642
    - - /bin/ln
        
        ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux
        5⤵
        
        PID:1643
  - - /bin/sh
      sh -c "mkdir -p /usr/bin/dpkgd"
      4⤵
      PID:1644
    - - /bin/mkdir
        
        mkdir -p /usr/bin/dpkgd
        5⤵
        Reads runtime system information
        
        PID:1645
  - - /bin/sh
      sh -c "cp -f /bin/ps /usr/bin/dpkgd/ps"
      4⤵
      PID:1646
    - - /bin/cp
        
        cp -f /bin/ps /usr/bin/dpkgd/ps
        5⤵
        Write file to user bin folder
        Reads runtime system information
        
        PID:1647
  - - /bin/sh
      sh -c "mkdir -p /bin"
      4⤵
      PID:1651
    - - /bin/mkdir
        
        mkdir -p /bin
        5⤵
        Reads runtime system information
        
        PID:1652
  - - /bin/sh
      sh -c "mkdir -p /bin"
      4⤵
      PID:1653
    - - /bin/mkdir
        
        mkdir -p /bin
        5⤵
        Reads runtime system information
        
        PID:1654
  - - /bin/sh
      sh -c "cp -f /usr/bin/bsd-port/getty /bin/ps"
      4⤵
      PID:1655
    - - /bin/cp
        
        cp -f /usr/bin/bsd-port/getty /bin/ps
        5⤵
        Writes file to system bin folder
        Reads runtime system information
        
        PID:1656
  - - /bin/sh
      sh -c "chmod 0755 /bin/ps"
      4⤵
      PID:1657
    - - /bin/chmod
        
        chmod 0755 /bin/ps
        5⤵
        
        PID:1658
  - - /bin/sh
      sh -c "cp -f /bin/ss /usr/bin/dpkgd/ss"
      4⤵
      PID:1659
    - - /bin/cp
        
        cp -f /bin/ss /usr/bin/dpkgd/ss
        5⤵
        Write file to user bin folder
        Reads runtime system information
        
        PID:1660
  - - /bin/sh
      sh -c "mkdir -p /bin"
      4⤵
      PID:1661
    - - /bin/mkdir
        
        mkdir -p /bin
        5⤵
        Reads runtime system information
        
        PID:1662
  - - /bin/sh
      sh -c "mkdir -p /bin"
      4⤵
      PID:1663
    - - /bin/mkdir
        
        mkdir -p /bin
        5⤵
        Reads runtime system information
        
        PID:1664
  - - /bin/sh
      sh -c "cp -f /usr/bin/bsd-port/getty /bin/ss"
      4⤵
      PID:1665
    - - /bin/cp
        
        cp -f /usr/bin/bsd-port/getty /bin/ss
        5⤵
        Writes file to system bin folder
        Reads runtime system information
        
        PID:1666
  - - /bin/sh
      sh -c "chmod 0755 /bin/ss"
      4⤵
      PID:1667
    - - /bin/chmod
        
        chmod 0755 /bin/ss
        5⤵
        
        PID:1668
  - - /bin/sh
      sh -c "cp -f /usr/bin/lsof /usr/bin/dpkgd/lsof"
      4⤵
      PID:1669
    - - /bin/cp
        
        cp -f /usr/bin/lsof /usr/bin/dpkgd/lsof
        5⤵
        Write file to user bin folder
        Reads runtime system information
        
        PID:1670
  - - /bin/sh
      sh -c "mkdir -p /usr/bin"
      4⤵
      PID:1671
    - - /bin/mkdir
        
        mkdir -p /usr/bin
        5⤵
        Reads runtime system information
        
        PID:1672
  - - /bin/sh
      sh -c "mkdir -p /usr/bin"
      4⤵
      PID:1673
    - - /bin/mkdir
        
        mkdir -p /usr/bin
        5⤵
        Reads runtime system information
        
        PID:1674
  - - /bin/sh
      sh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/lsof"
      4⤵
      PID:1675
    - - /bin/cp
        
        cp -f /usr/bin/bsd-port/getty /usr/bin/lsof
        5⤵
        Write file to user bin folder
        Reads runtime system information
        
        PID:1676
  - - /bin/sh
      sh -c "chmod 0755 /usr/bin/lsof"
      4⤵
      PID:1677
    - - /bin/chmod
        
        chmod 0755 /usr/bin/lsof
        5⤵
        
        PID:1678
  - - /bin/sh
      sh -c "insmod /usr/bin/bsd-port/xpacket.ko"
      4⤵
      PID:1681
    - - /sbin/insmod
        
        insmod /usr/bin/bsd-port/xpacket.ko
        5⤵
        Reads runtime system information
        
        PID:1682
- /bin/sh
  sh -c "mkdir -p /usr/bin"
  2⤵
  PID:1628
- - /bin/mkdir
    mkdir -p /usr/bin
    3⤵
    - Reads runtime system information
    PID:1629
- /bin/sh
  sh -c "mkdir -p /usr/bin"
  2⤵
  PID:1630
- - /bin/mkdir
    mkdir -p /usr/bin
    3⤵
    - Reads runtime system information
    PID:1631
- /bin/sh
  sh -c "cp -f /tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118 /usr/bin/.sshd"
  2⤵
  PID:1632
- - /bin/cp
    cp -f /tmp/21652156824d4a074e1b690d4f6bfad7_JaffaCakes118 /usr/bin/.sshd
    3⤵
    - Write file to user bin folder
    - Reads runtime system information
    PID:1633
- /bin/sh
  sh -c /usr/bin/.sshd
  2⤵
  PID:1649
- - /usr/bin/.sshd
    /usr/bin/.sshd
    3⤵
    - Executes dropped EXE
    - Writes file to tmp directory
    PID:1650
- /bin/sh
  sh -c "insmod /tmp/xpacket.ko"
  2⤵
  PID:1689
- - /sbin/insmod
    insmod /tmp/xpacket.ko
    3⤵
    - Reads runtime system information
    PID:1690

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Hijack Execution Flow

T1574

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Hijack Execution Flow

T1574

Defense Evasion

Hijack Execution Flow

T1574

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

/etc/init.d/DbSecuritySpt

Filesize
64B

MD5
8f98e18e3e9d1097933d8e63fb5e4d60

SHA1
15fef73c595ec1385ce4dd46f3526dd34910ca7b

SHA256
855d6efe9f722a465b549233ad564bc93b7534e2dc01fc8f00862ca1cc5aa8f5

SHA512
df6f7a08a41aed030a091a8d48904595c10e39e0c6708f02134b56d5db4ef2043cd385c952cf329c85f720cd76b7a37dfab2e50200d56ea9cbbb77fb050d65a0

Download Submit
/etc/init.d/selinux

Filesize
36B

MD5
993cc15058142d96c3daf7852c3d5ee8

SHA1
0950b8b391b04dd3895ea33cd3141543ebd2525d

SHA256
8171d077918611803d93088409f220c66fae1c670b297e1aa5d8cbd548ce9208

SHA512
0c4256c00a3710f97e92581b552682b36b62afc35fe72622c491323c618c19ea62611ac04ccafc3dfcde2254a2ebbd93b69b66795b16e36332293bed83adb928

Download Submit
/tmp/gates.lod

Filesize
4B

MD5
06a81a4fb98d149f2d31c68828fa6eb2

SHA1
d60af283b62280a8d737359c8859c0142aaf28c0

SHA256
38813d9a6e5332787f13dac070d265339c4c711beea8b21f82966684bda30e79

SHA512
d5b6404d9d32837b7b89a2d161789d2aa812ad61caba42e3fa5b82095b915ed3b5b7f260cde2521a53e0c5aa6a62ade3ba1f72bb31ab8e1f93baa24f3a6202ce

Download Submit
/tmp/moni.lod

Filesize
4B

MD5
e6384711491713d29bc63fc5eeb5ba4f

SHA1
64e89c002d47826fd7e23d43e239e4ee0d583896

SHA256
b93e56aec7724213a91e5c44256af055313fc7e8d80554fb7ed23b866470695b

SHA512
8777bdf258dedd2ae914f5388d00833bc2601b148e6eb3059e75bbf2bfd67fbae2a44b3a68240b6618af15917bba5cb36f549527cf13cdf94ea49fa955f78c82

Download Submit
/tmp/notify.file

Filesize
51B

MD5
43247d65f3d2393f6f6bd6de694cb43b

SHA1
732700a06fc38de55872622e2171b55980e24ddd

SHA256
06452cd9da38de571add44b182e405e19a6a6b371b81b77aace3f1019a4fce68

SHA512
21ab658f3bee3d3b77d928525abe56a2d697921a6e8cb185090a1ddad6ab5c62444093ea4b966b0cc4c22e09edebabc20189608f15564464c03ef82a21658192

Download Submit
/usr/bin/bsd-port/conf.n

Filesize
73B

MD5
c241abb054793515570be2b4bc2a0653

SHA1
3ff331ebb328529144ac4286e5c9fe7e903fad68

SHA256
556d6aa9ac012dd6e1dfed034c55314be80a7c2dafb187bf39175fe280f74d79

SHA512
59ac6112c79bebd0b5f1eb16e78bdca35d6ea0b7dab9045c5b95550b64fd05813d1d183146a2fa8fa5060cef123a05ae789045739185604774c548dce851887e

Download Submit
/usr/bin/bsd-port/getty

Filesize
1.2MB

MD5
21652156824d4a074e1b690d4f6bfad7

SHA1
43f2d4779ee62982f574143e86cb95c65e1fdd49

SHA256
0f59819c0394537dc96ff243c24d432fc47f44fc72cfc4ccba43c8e5bde8bcf2

SHA512
7298344489af32ab2d967200ed70eea00096090d09e809d9288d3a5945b108abcd1ca2a939941eb4b040972a243c2ba3990ec20d2744caa11fdf125e77dc22d4

Download Submit
/usr/bin/dpkgd/lsof

Filesize
159KB

MD5
e093dc78225e2a0a25e3b137c1c1e442

SHA1
c29497cfaae729eb576875e4fdfa400640ab16be

SHA256
1190f4dbc7be174de8fd4096c9bf7a28eebfac937d308b7cc533be4a1240d26e

SHA512
fe1cc7a65327732eaaee89f427c10239ba822430e34177842f4681068d78d404b1830d808a2a71b1efcc5f126c6d8c053512237421173aaa150e215a672da6f0

Download Submit
/usr/bin/dpkgd/ps

Filesize
130KB

MD5
558edc26f8a38fa9788220b9af8a73e7

SHA1
3024d44e580e9c67f32f6c585d50e2a6cc9a7cac

SHA256
b76435c80333d2c1fd18e0e7682f1c9dfb5da8d507e93e3c416f54b481c428d5

SHA512
edaa425b441044f015e8f68fffa1664e42372d00dd0e7b0924d24ce947aa8e5f96b3bdc326fa2f8b978e3fcf638a1ceca45a223735db73f1607df66990feb56f

Download Submit
/usr/bin/dpkgd/ss

Filesize
136KB

MD5
1dc929b5f2cd12fe6a2fe71140d2a9e3

SHA1
f9995a92bb201b1b7738a39a38570ef0c40b52d2

SHA256
418aae1da62554afe9f260866267af328fd761b3fd6f90f0ea53d543e2fefc38

SHA512
fbed011c595084548db440dfbe485b7d27032a44a6ae9e141fe43f31c8c524ff9347135ab035deb441fca99e5a3794f7bb9194f148aa2f60f1547a7c67d47373

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads