mrblack | 119da99cd938fb3eeaa4c6e824ebaa9efb36abc66aa04ab60efb7f63350018eb

Analysis

max time kernel
149s
max time network
150s
platform
ubuntu-20.04_amd64
resource
ubuntu2004-amd64-20240221-en
resource tags

arch:amd64arch:i386image:ubuntu2004-amd64-20240221-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
submitted
29-03-2024 18:13

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General

Target

2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118
Size

1.2MB
MD5

2939aadefa42ec7ad1c03d0c6f73b9cb
SHA1

73172c7388b4392f5ca77178a00baa50e3df9785
SHA256

119da99cd938fb3eeaa4c6e824ebaa9efb36abc66aa04ab60efb7f63350018eb
SHA512

939f8458854cfbdc32d7954747c95ea7a2341fda7669840e9123e18662cd95fc63f010f2a017becc51f5b817811fb7dc041597031f0d8d9a9a5c6cc28b5e3d67
SSDEEP

24576:e845rGHu6gVJKG75oFpA0VWeX4S2y1q2rJp0:745vRVJKGtSA0VWeohu9p0

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	1931	getty
/usr/bin/.sshd	1992	.sshd

Checks CPU configuration 1 TTPs 1 IoCs

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

antivm

Virtualization/Sandbox Evasion

T1497

description	ioc
File opened for reading	/proc/cpuinfo

Modifies init.d 1 TTPs 2 IoCs

Adds/modifies system service, likely for persistence.

persistence

Boot or Logon Autostart Execution

T1547

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.

System Network Configuration Discovery

T1016

description	ioc
File opened for reading	/proc/net/route

Write file to user bin folder 1 TTPs 10 IoCs

Hijack Execution Flow

T1574

description	ioc	Process
File opened for modification	/usr/bin/.sshd	cp
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/getty	cp
File opened for modification	/usr/bin/dpkgd/lsof	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/ps	cp
File opened for modification	/usr/bin/bsd-port/udevd.lock	Process not Found

Writes file to system bin folder 1 TTPs 3 IoCs

Hijack Execution Flow

T1574

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.

System Network Configuration Discovery

T1016

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	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	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	mkdir
File opened for reading	/proc/cmdline	insmod
File opened for reading	/proc/filesystems	mkdir
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	cp
File opened for reading	/proc/stat	Process not Found
File opened for reading	/proc/sys/kernel/version	2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118
File opened for reading	/proc/sys/kernel/version	getty
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	cp
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	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/meminfo	Process not Found

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

/tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118
/tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118
1⤵
- Reads runtime system information
PID:1479

/bin/sh
sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt"
1⤵
PID:1913
- /usr/bin/ln
  ln -s /etc/init.d/DbSecuritySpt /etc/rc1.d/S97DbSecuritySpt
  2⤵
  PID:1914

/bin/sh
sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt"
1⤵
PID:1915
- /usr/bin/ln
  ln -s /etc/init.d/DbSecuritySpt /etc/rc2.d/S97DbSecuritySpt
  2⤵
  PID:1916

/bin/sh
sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt"
1⤵
PID:1917
- /usr/bin/ln
  ln -s /etc/init.d/DbSecuritySpt /etc/rc3.d/S97DbSecuritySpt
  2⤵
  PID:1918

/bin/sh
sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt"
1⤵
PID:1919
- /usr/bin/ln
  ln -s /etc/init.d/DbSecuritySpt /etc/rc4.d/S97DbSecuritySpt
  2⤵
  PID:1920

/bin/sh
sh -c "ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt"
1⤵
PID:1921
- /usr/bin/ln
  ln -s /etc/init.d/DbSecuritySpt /etc/rc5.d/S97DbSecuritySpt
  2⤵
  PID:1922

/bin/sh
sh -c "mkdir -p /usr/bin/bsd-port"
1⤵
PID:1923
- /usr/bin/mkdir
  mkdir -p /usr/bin/bsd-port
  2⤵
  - Reads runtime system information
  PID:1924

/bin/sh
sh -c "mkdir -p /usr/bin/bsd-port"
1⤵
PID:1925
- /usr/bin/mkdir
  mkdir -p /usr/bin/bsd-port
  2⤵
  - Reads runtime system information
  PID:1926

/bin/sh
sh -c "cp -f /tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118 /usr/bin/bsd-port/getty"
1⤵
PID:1927
- /usr/bin/cp
  cp -f /tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118 /usr/bin/bsd-port/getty
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:1928

/bin/sh
sh -c /usr/bin/bsd-port/getty
1⤵
PID:1930
- /usr/bin/bsd-port/getty
  /usr/bin/bsd-port/getty
  2⤵
  - Executes dropped EXE
  - Reads runtime system information
  PID:1931

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:1933
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:1934

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:1935
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:1936

/bin/sh
sh -c "cp -f /tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118 /usr/bin/.sshd"
1⤵
PID:1937
- /usr/bin/cp
  cp -f /tmp/2939aadefa42ec7ad1c03d0c6f73b9cb_JaffaCakes118 /usr/bin/.sshd
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:1938

/bin/sh
sh -c "ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux"
1⤵
PID:1975
- /usr/bin/ln
  ln -s /etc/init.d/selinux /etc/rc1.d/S99selinux
  2⤵
  PID:1976

/bin/sh
sh -c "ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux"
1⤵
PID:1977
- /usr/bin/ln
  ln -s /etc/init.d/selinux /etc/rc2.d/S99selinux
  2⤵
  PID:1978

/bin/sh
sh -c "ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux"
1⤵
PID:1979
- /usr/bin/ln
  ln -s /etc/init.d/selinux /etc/rc3.d/S99selinux
  2⤵
  PID:1980

/bin/sh
sh -c "ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux"
1⤵
PID:1981
- /usr/bin/ln
  ln -s /etc/init.d/selinux /etc/rc4.d/S99selinux
  2⤵
  PID:1982

/bin/sh
sh -c "ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux"
1⤵
PID:1984
- /usr/bin/ln
  ln -s /etc/init.d/selinux /etc/rc5.d/S99selinux
  2⤵
  PID:1985

/bin/sh
sh -c "mkdir -p /usr/bin/dpkgd"
1⤵
PID:1986
- /usr/bin/mkdir
  mkdir -p /usr/bin/dpkgd
  2⤵
  - Reads runtime system information
  PID:1987

/bin/sh
sh -c "cp -f /bin/lsof /usr/bin/dpkgd/lsof"
1⤵
PID:1988
- /usr/bin/cp
  cp -f /bin/lsof /usr/bin/dpkgd/lsof
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:1989

/bin/sh
sh -c /usr/bin/.sshd
1⤵
PID:1991
- /usr/bin/.sshd
  /usr/bin/.sshd
  2⤵
  - Executes dropped EXE
  - Reads runtime system information
  PID:1992

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:1993
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:1994

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:1995
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:1996

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /bin/lsof"
1⤵
PID:1997
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /bin/lsof
  2⤵
  - Writes file to system bin folder
  - Reads runtime system information
  PID:1998

/bin/sh
sh -c "chmod 0755 /bin/lsof"
1⤵
PID:1999
- /usr/bin/chmod
  chmod 0755 /bin/lsof
  2⤵
  PID:2000

/bin/sh
sh -c "cp -f /bin/ps /usr/bin/dpkgd/ps"
1⤵
PID:2001
- /usr/bin/cp
  cp -f /bin/ps /usr/bin/dpkgd/ps
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:2002

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:2003
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:2004

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:2005
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:2006

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /bin/ps"
1⤵
PID:2007
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /bin/ps
  2⤵
  - Writes file to system bin folder
  - Reads runtime system information
  PID:2008

/bin/sh
sh -c "chmod 0755 /bin/ps"
1⤵
PID:2009
- /usr/bin/chmod
  chmod 0755 /bin/ps
  2⤵
  PID:2010

/bin/sh
sh -c "cp -f /bin/ss /usr/bin/dpkgd/ss"
1⤵
PID:2011
- /usr/bin/cp
  cp -f /bin/ss /usr/bin/dpkgd/ss
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:2012

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:2013
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:2014

/bin/sh
sh -c "mkdir -p /bin"
1⤵
PID:2015
- /usr/bin/mkdir
  mkdir -p /bin
  2⤵
  - Reads runtime system information
  PID:2016

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /bin/ss"
1⤵
PID:2017
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /bin/ss
  2⤵
  - Writes file to system bin folder
  - Reads runtime system information
  PID:2018

/bin/sh
sh -c "chmod 0755 /bin/ss"
1⤵
PID:2019
- /usr/bin/chmod
  chmod 0755 /bin/ss
  2⤵
  PID:2020

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2021
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2022

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2023
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2024

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/lsof"
1⤵
PID:2025
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /usr/bin/lsof
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:2026

/bin/sh
sh -c "chmod 0755 /usr/bin/lsof"
1⤵
PID:2027
- /usr/bin/chmod
  chmod 0755 /usr/bin/lsof
  2⤵
  PID:2028

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2029
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2030

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2031
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2032

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/ps"
1⤵
PID:2033
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /usr/bin/ps
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:2034

/bin/sh
sh -c "chmod 0755 /usr/bin/ps"
1⤵
PID:2035
- /usr/bin/chmod
  chmod 0755 /usr/bin/ps
  2⤵
  PID:2036

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2037
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2038

/bin/sh
sh -c "mkdir -p /usr/bin"
1⤵
PID:2039
- /usr/bin/mkdir
  mkdir -p /usr/bin
  2⤵
  - Reads runtime system information
  PID:2040

/bin/sh
sh -c "cp -f /usr/bin/bsd-port/getty /usr/bin/ss"
1⤵
PID:2041
- /usr/bin/cp
  cp -f /usr/bin/bsd-port/getty /usr/bin/ss
  2⤵
  - Write file to user bin folder
  - Reads runtime system information
  PID:2042

/bin/sh
sh -c "chmod 0755 /usr/bin/ss"
1⤵
PID:2043
- /usr/bin/chmod
  chmod 0755 /usr/bin/ss
  2⤵
  PID:2044

/bin/sh
sh -c "insmod /usr/bin/bsd-port/xpacket.ko"
1⤵
PID:2089
- /usr/sbin/insmod
  insmod /usr/bin/bsd-port/xpacket.ko
  2⤵
  - Reads runtime system information
  PID:2090

/bin/sh
sh -c "insmod /tmp/xpacket.ko"
1⤵
PID:2100
- /usr/sbin/insmod
  insmod /tmp/xpacket.ko
  2⤵
  - Reads runtime system information
  PID:2101

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
2cd7f1c3120e0870c48e45bc92fa6e37

SHA1
c114738feb2125ee6364c7ad3968fda1fff44b27

SHA256
5a1c7666a33b06270ab6717eac83a473cfbf8e0afe1662e1883983e5d2ae5312

SHA512
9031e24741ee95f580fb1f3153b6c37ef8482e641b55bea13b6cc1d528d1080b850841af0311cec33356af362bb00543fc2c09320b4594337c6fb2c9b3a465eb

Download Submit
/etc/init.d/selinux

Filesize
36B

MD5
993cc15058142d96c3daf7852c3d5ee8

SHA1
0950b8b391b04dd3895ea33cd3141543ebd2525d

SHA256
8171d077918611803d93088409f220c66fae1c670b297e1aa5d8cbd548ce9208

SHA512
0c4256c00a3710f97e92581b552682b36b62afc35fe72622c491323c618c19ea62611ac04ccafc3dfcde2254a2ebbd93b69b66795b16e36332293bed83adb928

Download Submit
/tmp/gates.lod

Filesize
4B

MD5
729c68884bd359ade15d5f163166738a

SHA1
158a66682da61df5f2115c2fc8c8328e6c837b05

SHA256
47f6c8c4b34d11e58a4b8643ea77722600f0f2a2134c6b5558de0b704a6ec9fb

SHA512
c8e5892155b30891bd73fb8bc0fd7e7632332e675600ed785d164d3e1f56b27bc4a161316a7d4d235162eeef592fd9cd7c3d1815b330d89fcdd8175905150e92

Download Submit
/tmp/moni.lod

Filesize
4B

MD5
3875115bacc48cca24ac51ee4b0e7975

SHA1
d656e613a98886be20fa130aa430ef3565ae648b

SHA256
53f15ca2c3a39541db966c5d52047590467b0d275a39b54dcb213b544a530c2c

SHA512
1a81faa5f86e19dfc95db85001df99d2ade8fc30aad59bca0c509c95215647406216b1e63448e41084757da24ee14671de5e03e752458d5d530b5cc7b4c86930

Download Submit
/tmp/notify.file

Filesize
51B

MD5
fc18a1dd8c6c9e5befda4b49dcf97c03

SHA1
04cf5ae2904f76696a72640a8b1177cec26736f4

SHA256
5a62782ba7d77feecc9c2e51d9cf72a168ec9c035f3f2109b9d9356426b67b63

SHA512
67e327830e676c95fed37ec4abc1c07c8046db88adc4c11cca932582d3ecdf6690c3f10d986d1068735b6a7c02e3d39b0aa543add96c1b31a7f02356126e1396

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

Filesize
1.2MB

MD5
2939aadefa42ec7ad1c03d0c6f73b9cb

SHA1
73172c7388b4392f5ca77178a00baa50e3df9785

SHA256
119da99cd938fb3eeaa4c6e824ebaa9efb36abc66aa04ab60efb7f63350018eb

SHA512
939f8458854cfbdc32d7954747c95ea7a2341fda7669840e9123e18662cd95fc63f010f2a017becc51f5b817811fb7dc041597031f0d8d9a9a5c6cc28b5e3d67

Download Submit
/usr/bin/dpkgd/lsof

Filesize
171KB

MD5
061386937ec7acf924438a2643a32be0

SHA1
01a044b9e58839bea3e58c66cb32acc16241bf91

SHA256
8a26bbae9eb85aa98ef29cfe5b0a291234db6eb394c3e0c2841983dcf7dda959

SHA512
2de2e56ac4c32f47b4a1945ccfb0db378e6d59019ee8004e3e5d2ec8935efb5aa8ee14b8a0b21c61a267e195d42a3232a6dcade8720de06118fd579277f59db7

Download Submit
/usr/bin/dpkgd/ps

Filesize
134KB

MD5
d194576b899af45b1d2a448612ec21e5

SHA1
492f7d8f28cd4397ce22fcf0d8bf3304ea93465a

SHA256
a8cf81f3a1137c999c3cf336507ce120b3065e633ade01db6280d427b7d986ca

SHA512
b323babd9580b91772cde29c9f22ae75b27f5ce8ce0268a48ca41713c3545dd72409932a5c48f6af66ac6e43127eb5461d1f686bd667fa1b0e56a1564db3c539

Download Submit
/usr/bin/dpkgd/ss

Filesize
164KB

MD5
51d83131b398a97dd38555ba57084721

SHA1
7d392a87f7db787dfa85fbcdf2a5ba6f0b59b4ed

SHA256
e429f9d16a4cd64593b94dee8309a427fe8ca57765bf0d2e7b822efd123fe768

SHA512
adc7137df75410c2535986c1e86c2e92e58f9bee70094f72f1f7adf3db125720ce281eb3f48474b0e192d672e96cbb1bc6e1ef6b26b10bf76a412c4516948216

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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