f98738570d8c66e4c87bdec0d6d9ccb5f7de0421cc734e1af55664e6bf446f46

Analysis

max time kernel
156s
max time network
168s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20231026-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20231026-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
11-11-2023 13:40

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General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046
Size

8.6MB
MD5

ae747bc7fff9bc23f06635ef60ea0e8d
SHA1

64315e834f67905ed4e47f36155362a78ac23462
SHA256

103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046
SHA512

e24914a58565a43883c27ae4a41061e8edd3d5eef7b86c1c0e9910d9fbe0eef3e78ed49136ac0c9378311e99901b1847bcfd926aa9a3ea44149a7478480f82b2
SSDEEP

98304:rDSceJ/GqDu6P0ypQ0Qv5knSTH20ejwBcHjI7Xk:rDSceJ/GqD18RZv5knS720e7s

Score

8^/10

antivm persistence

Malware Config

Signatures

Adds new SSH keys 2 IoCs

Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

persistence

description	ioc	Process
File opened for modification	/root/.ssh/authorized_keys	Process not Found
File opened for modification	/root/.ssh/authorized_keys	103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046

Deletes itself 1 IoCs

pid
1532

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	Process
File opened for reading	/proc/cpuinfo	cat

Deletes log files 1 TTPs 2 IoCs

Deletes log files on the system.

Indicator Removal

T1070

description	ioc	Process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046	Process not Found
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046	103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046

Enumerates running processes
Discovers information about currently running processes on the system

Reads CPU attributes 1 TTPs 25 IoCs

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	ps
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	pkill
File opened for reading	/sys/devices/system/cpu/online	free

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/311/stat	killall
File opened for reading	/proc/1164/cmdline	pkill
File opened for reading	/proc/172/status	pkill
File opened for reading	/proc/6/cmdline	pkill
File opened for reading	/proc/1139/cmdline	ps
File opened for reading	/proc/21/cmdline	pidof
File opened for reading	/proc/1067/stat	killall
File opened for reading	/proc/1175/stat	killall
File opened for reading	/proc/158/cmdline	pkill
File opened for reading	/proc/446/cmdline	ps
File opened for reading	/proc/432/status	ps
File opened for reading	/proc/662/stat	ps
File opened for reading	/proc/1249/stat	ps
File opened for reading	/proc/1162/stat	killall
File opened for reading	/proc/432/stat	killall
File opened for reading	/proc/34/stat	killall
File opened for reading	/proc/197/status	pkill
File opened for reading	/proc/self/maps	awk
File opened for reading	/proc/311/status	ps
File opened for reading	/proc/463/cmdline	pidof
File opened for reading	/proc/162/cmdline	ps
File opened for reading	/proc/16/cmdline	ps
File opened for reading	/proc/98/status	ps
File opened for reading	/proc/1530/cmdline	ps
File opened for reading	/proc/23/stat	killall
File opened for reading	/proc/83/stat	ps
File opened for reading	/proc/428/stat	killall
File opened for reading	/proc/1250/stat	killall
File opened for reading	/proc/1118/cmdline	killall
File opened for reading	/proc/18/cmdline	pkill
File opened for reading	/proc/1350/cmdline	ps
File opened for reading	/proc/20/stat	ps
File opened for reading	/proc/1122/stat	ps
File opened for reading	/proc/889/stat	killall
File opened for reading	/proc/1350/cmdline	killall
File opened for reading	/proc/1067/stat	killall
File opened for reading	/proc/17/cmdline	pkill
File opened for reading	/proc/168/status	pkill
File opened for reading	/proc/83/status	ps
File opened for reading	/proc/4/status	ps
File opened for reading	/proc/31/stat	ps
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1179/stat	killall
File opened for reading	/proc/17/status	ps
File opened for reading	/proc/1660/status	ps
File opened for reading	/proc/1177/stat	killall
File opened for reading	/proc/79/cmdline	killall
File opened for reading	/proc/1177/cmdline	pkill
File opened for reading	/proc/2/status	pkill
File opened for reading	/proc/1051/stat	ps
File opened for reading	/proc/577/stat	killall
File opened for reading	/proc/1167/stat	killall
File opened for reading	/proc/79/stat	killall
File opened for reading	/proc/7/cmdline	pkill
File opened for reading	/proc/1605/status	pkill
File opened for reading	/proc/filesystems	sudo
File opened for reading	/proc/959/stat	killall
File opened for reading	/proc/24/status	pkill
File opened for reading	/proc/940/stat	ps
File opened for reading	/proc/1094/status	ps
File opened for reading	/proc/674/stat	ps
File opened for reading	/proc/filesystems	sudo
File opened for reading	/proc/85/stat	killall
File opened for reading	/proc/167/stat	killall

Writes file to tmp directory 2 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/.local_8243	touch
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/.local_28522	touch

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/103b8404dc64c9a44511675981a09fd01395ee837452d114f1350c295357c046
1⤵
- Adds new SSH keys
- Deletes log files
PID:1530
- /bin/bash
  /bin/bash -
  2⤵
  PID:1550
- - /usr/bin/sudo
    sudo -S touch .local_8243
    3⤵
    PID:1555
  - - /usr/bin/touch
      touch .local_8243
      4⤵
      Writes file to tmp directory
      PID:1556
- - /usr/bin/sudo
    sudo rm .local_8243
    3⤵
    PID:1560
  - - /bin/rm
      rm .local_8243
      4⤵
      PID:1561
- - /usr/bin/sudo
    sudo killall -9 bssh
    3⤵
    PID:1568
  - - /usr/bin/killall
      killall -9 bssh
      4⤵
      Reads runtime system information
      PID:1569
- - /usr/bin/sudo
    sudo rm -rf /tmp/.an
    3⤵
    PID:1570
  - - /bin/rm
      rm -rf /tmp/.an
      4⤵
      PID:1571
- - /usr/bin/sudo
    sudo killall -9 xm64
    3⤵
    PID:1572
  - - /usr/bin/killall
      killall -9 xm64
      4⤵
      Reads runtime system information
      PID:1573
- - /usr/bin/sudo
    sudo killall -9 rpc.idmapd
    3⤵
    PID:1574
  - - /usr/bin/killall
      killall -9 rpc.idmapd
      4⤵
      Reads runtime system information
      PID:1575
- - /usr/bin/sudo
    sudo rm -rf /tmp/.m2
    3⤵
    PID:1576
  - - /bin/rm
      rm -rf /tmp/.m2
      4⤵
      PID:1577
- - /usr/bin/sudo
    sudo killall -9 xorgg
    3⤵
    PID:1578
  - - /usr/bin/killall
      killall -9 xorgg
      4⤵
      Reads runtime system information
      PID:1579
- - /usr/bin/sudo
    sudo rm -rf /tmp/seconfig
    3⤵
    PID:1580
  - - /bin/rm
      rm -rf /tmp/seconfig
      4⤵
      PID:1581
- - /usr/bin/sudo
    sudo killall -9 crond64
    3⤵
    PID:1582
  - - /usr/bin/killall
      killall -9 crond64
      4⤵
      Reads runtime system information
      PID:1583
- - /usr/bin/sudo
    sudo killall -9 tsm
    3⤵
    PID:1584
  - - /usr/bin/killall
      killall -9 tsm
      4⤵
      Reads runtime system information
      PID:1585
- - /usr/bin/sudo
    sudo rm -rf /tmp/.ssh
    3⤵
    PID:1586
  - - /bin/rm
      rm -rf /tmp/.ssh
      4⤵
      PID:1587
- - /usr/bin/sudo
    sudo rm -rf /tmp/.java
    3⤵
    PID:1588
  - - /bin/rm
      rm -rf /tmp/.java
      4⤵
      PID:1589
- - /usr/bin/sudo
    sudo rm -rf /tmp/.iolanda
    3⤵
    PID:1590
  - - /bin/rm
      rm -rf /tmp/.iolanda
      4⤵
      PID:1591
- - /usr/bin/sudo
    sudo pkill test.mod
    3⤵
    PID:1592
  - - /usr/bin/pkill
      pkill test.mod
      4⤵
      Reads CPU attributes
      Reads runtime system information
      PID:1593
- - /usr/bin/sudo
    sudo pkill daemon.i686.mod
    3⤵
    PID:1594
  - - /usr/bin/pkill
      pkill daemon.i686.mod
      4⤵
      Reads CPU attributes
      PID:1595
- - /usr/bin/sudo
    sudo pkill daemon.armv4l.mod
    3⤵
    PID:1596
  - - /usr/bin/pkill
      pkill daemon.armv4l.mod
      4⤵
      Reads CPU attributes
      Reads runtime system information
      PID:1597
- - /usr/bin/sudo
    sudo pkill daemon.mips.mod
    3⤵
    PID:1598
  - - /usr/bin/pkill
      pkill daemon.mips.mod
      4⤵
      Reads CPU attributes
      Reads runtime system information
      PID:1599
- - /usr/bin/sudo
    sudo pkill daemon.mipsel.mod
    3⤵
    PID:1600
  - - /usr/bin/pkill
      pkill daemon.mipsel.mod
      4⤵
      Reads CPU attributes
      Reads runtime system information
      PID:1601
- - /usr/bin/sudo
    sudo rm -rf /tmp/.xs
    3⤵
    PID:1602
  - - /bin/rm
      rm -rf /tmp/.xs
      4⤵
      PID:1603
- - /usr/bin/sudo
    sudo pkill ld-linux-x86-64
    3⤵
    PID:1604
  - - /usr/bin/pkill
      pkill ld-linux-x86-64
      4⤵
      Reads CPU attributes
      Reads runtime system information
      PID:1605
- - /bin/rm
    rm -rf "/var/tmp/. *"
    3⤵
    PID:1606
- - /usr/bin/sudo
    sudo killall -9 "[atd]"
    3⤵
    PID:1643
  - - /usr/bin/killall
      killall -9 "[atd]"
      4⤵
      PID:1646
- - /usr/bin/sudo
    sudo rm -rf /tmp/.jk
    3⤵
    PID:1647
  - - /bin/rm
      rm -rf /tmp/.jk
      4⤵
      PID:1648
- - /usr/bin/sudo
    sudo killall -9 "[ntpd]"
    3⤵
    PID:1649
  - - /usr/bin/killall
      killall -9 "[ntpd]"
      4⤵
      PID:1650
- - /usr/bin/sudo
    sudo killall -9 "[rpciod]"
    3⤵
    - Reads runtime system information
    PID:1651
  - - /usr/bin/killall
      killall -9 "[rpciod]"
      4⤵
      PID:1652
- - /usr/bin/sudo
    sudo killall -9 "[ext4-dio-unwrit]"
    3⤵
    PID:1653
  - - /usr/bin/killall
      killall -9 "[ext4-dio-unwrit]"
      4⤵
      Reads runtime system information
      PID:1654
- - /usr/bin/sudo
    sudo rm -rf "/tmp/.xm*"
    3⤵
    PID:1655
  - - /bin/rm
      rm -rf "/tmp/.xm*"
      4⤵
      PID:1656
- - /bin/pidof
    pidof libexec
    3⤵
    - Reads runtime system information
    PID:1657
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1644
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1645
- /bin/bash
  /bin/bash -
  2⤵
  PID:1660
- - /usr/bin/sudo
    sudo -S touch .local_28522
    3⤵
    PID:1665
  - - /usr/bin/touch
      touch .local_28522
      4⤵
      Writes file to tmp directory
      PID:1666
- - /usr/bin/sudo
    sudo rm .local_28522
    3⤵
    PID:1670
  - - /bin/rm
      rm .local_28522
      4⤵
      PID:1671
- - /usr/bin/sudo
    sudo killall -9 bssh
    3⤵
    PID:1678
  - - /usr/bin/killall
      killall -9 bssh
      4⤵
      Reads runtime system information
      PID:1679
- - /usr/bin/sudo
    sudo rm -rf /tmp/.an
    3⤵
    PID:1680
  - - /bin/rm
      rm -rf /tmp/.an
      4⤵
      PID:1681
- - /usr/bin/sudo
    sudo killall -9 xm64
    3⤵
    PID:1682
  - - /usr/bin/killall
      killall -9 xm64
      4⤵
      Reads runtime system information
      PID:1683
- - /usr/bin/sudo
    sudo killall -9 rpc.idmapd
    3⤵
    PID:1684
  - - /usr/bin/killall
      killall -9 rpc.idmapd
      4⤵
      Reads runtime system information
      PID:1685
- - /usr/bin/sudo
    sudo rm -rf /tmp/.m2
    3⤵
    PID:1686
  - - /bin/rm
      rm -rf /tmp/.m2
      4⤵
      PID:1687
- - /usr/bin/sudo
    sudo killall -9 xorgg
    3⤵
    PID:1688
  - - /usr/bin/killall
      killall -9 xorgg
      4⤵
      Reads runtime system information
      PID:1689
- - /usr/bin/sudo
    sudo rm -rf /tmp/seconfig
    3⤵
    PID:1690
  - - /bin/rm
      rm -rf /tmp/seconfig
      4⤵
      PID:1691
- - /usr/bin/sudo
    sudo killall -9 crond64
    3⤵
    PID:1692
  - - /usr/bin/killall
      killall -9 crond64
      4⤵
      PID:1693
- - /usr/bin/sudo
    sudo killall -9 tsm
    3⤵
    - Reads runtime system information
    PID:1694
  - - /usr/bin/killall
      killall -9 tsm
      4⤵
      PID:1695
- - /usr/bin/sudo
    sudo rm -rf /tmp/.ssh
    3⤵
    PID:1696
  - - /bin/rm
      rm -rf /tmp/.ssh
      4⤵
      PID:1697
- - /usr/bin/sudo
    sudo rm -rf /tmp/.java
    3⤵
    PID:1698
  - - /bin/rm
      rm -rf /tmp/.java
      4⤵
      PID:1702
- - /usr/bin/sudo
    sudo rm -rf /tmp/.iolanda
    3⤵
    PID:1705
  - - /bin/rm
      rm -rf /tmp/.iolanda
      4⤵
      PID:1706
- - /usr/bin/sudo
    sudo pkill test.mod
    3⤵
    PID:1709
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1699
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1708

/bin/uname
uname -a
1⤵
PID:1541

/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1543

/bin/cat
cat /etc/issue
1⤵
PID:1544

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1545

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1546

/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
PID:1547

/bin/cat
cat "/var/log/auth*"
1⤵
PID:1548

/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1549

/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1549

/usr/bin/which
which sudo
1⤵
PID:1552

/usr/bin/wc
wc -l
1⤵
PID:1553

/bin/ls
ls -l .local_8243
1⤵
PID:1558

/bin/grep
grep -c root
1⤵
PID:1559

/usr/bin/sudo
sudo ps auxff
1⤵
PID:1563
- /bin/ps
  ps auxff
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1567

/bin/grep
grep "./crond -t=all"
1⤵
PID:1564

/bin/grep
grep -v grep
1⤵
PID:1565

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1566

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1608
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1612

/bin/grep
grep xmr
1⤵
PID:1609

/bin/grep
grep -v grep
1⤵
PID:1610

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1611

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1614
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1618

/bin/grep
grep cryptonight
1⤵
PID:1615

/bin/grep
grep -v grep
1⤵
PID:1616

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1617

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1620
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1624

/bin/grep
grep stratum
1⤵
PID:1621

/bin/grep
grep -v grep
1⤵
PID:1622

/usr/bin/awk
awk "{ print \$2 }"
1⤵
- Reads runtime system information
PID:1623

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1626
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1630

/bin/grep
grep dbus-daemon--system
1⤵
PID:1627

/bin/grep
grep -v grep
1⤵
PID:1628

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1629

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1632
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1636

/bin/grep
grep "\\[\\]"
1⤵
PID:1633

/bin/grep
grep -v grep
1⤵
PID:1634

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1635

/usr/bin/sudo
sudo ps auxf
1⤵
PID:1638
- /bin/ps
  ps auxf
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1642

/bin/grep
grep xm64
1⤵
PID:1639

/bin/grep
grep -v grep
1⤵
PID:1640

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1641

/usr/bin/which
which sudo
1⤵
PID:1662

/usr/bin/wc
wc -l
1⤵
PID:1663

/bin/ls
ls -l .local_28522
1⤵
PID:1668

/bin/grep
grep -c root
1⤵
PID:1669

/usr/bin/sudo
sudo ps auxff
1⤵
PID:1673
- /bin/ps
  ps auxff
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1677

/bin/grep
grep "./crond -t=all"
1⤵
PID:1674

/bin/grep
grep -v grep
1⤵
PID:1675

/usr/bin/awk
awk "{ print \$2 }"
1⤵
PID:1676

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1701

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1703

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1704

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1707

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1710

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/root/.ssh/authorized_keys

Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads