b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
142s
platform
ubuntu-22.04_amd64
resource
ubuntu2204-amd64-20240611-en
resource tags

arch:amd64arch:i386image:ubuntu2204-amd64-20240611-enkernel:5.15.0-105-genericlocale:en-usos:ubuntu-22.04-amd64system
submitted
04-09-2024 20:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
Size

8.7MB
MD5

682ac123d740321e6ba04d82e8cc4ed8
SHA1

088a8c8c2b7f9db92ec0ae39e1dc77c8707d3895
SHA256

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
SHA512

26ddc0a1b91337de2314465f82f3a02ec478f32708fa91b7cdf75fc235eda7b3cf7c495616145dc29fc081ac4398cab5aac0d42978ea694fa183518533fcf4ad
SSDEEP

98304:i7ihKiuH4QpmHh/vN0SyDbQy5lZGJJRgOX5f4y+n47Xk:i7ihKiuH4QIha1PQaZGTRgOXxR

Score

8^/10

antivm defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Adds new SSH keys 1 TTPs 1 IoCs
Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.
persistence privilege_escalation

SSH Authorized Keys
T1098.004

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

description ioc process

File opened for modification /root/.ssh/authorized_keys 453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
Deletes itself 1 IoCs

Processes:

pid

1571

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

pid
1571

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

Enumerates running processes
Discovers information about currently running processes on the system
Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
antivm

System Checks
T1497.001

Processes:

cat

description ioc process

File opened for reading /proc/cpuinfo cat

description	ioc	process
File opened for reading	/proc/cpuinfo	cat

Reads CPU attributes 1 TTPs 30 IoCs

discovery

System Information Discovery

T1082

Processes:

freefreeuptimefreeuptimeuptimeuptimefreefreefreefreefreefreeuptimeuptimeuptimeuptimeuptimeuptimeuptimefreefreeuptimeuptimeuptimeuptimefreefreefreefree

description	ioc	process
File opened for reading	/sys/devices/system/cpu/online	free
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	uptime
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	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
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	uptime
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	uptime
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	free
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	uptime
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	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619uptimeuptimeuptimeuptimefreefreefreeuptimefreeuptimefreefreeuptime

description	ioc	process
File opened for reading	/proc/206/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1115/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/634/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/12/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/413/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/114/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1158/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/210/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/22/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/102/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1255/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/194/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/196/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1054/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/411/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/202/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/1164/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/263/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/530/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/531/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/92/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/589/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/82/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1161/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/590/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/611/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/599/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1210/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/20/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1224/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1083/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/23/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/1394/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/86/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/98/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/1144/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1160/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1190/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/972/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/25/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/192/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/98/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/760/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1061/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1124/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1186/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
- Writes file to tmp directory
PID:1567

/usr/bin/uname
uname -a
2⤵
PID:1578

/usr/bin/cat
cat /proc/cpuinfo
2⤵
- Checks CPU configuration
PID:1582

/usr/bin/cat
cat /etc/issue
2⤵
PID:1583

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1584

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1585

/usr/bin/journalctl
journalctl -S "@0" -u sshd
2⤵
PID:1586

/usr/bin/cat
cat "/var/log/auth*"
2⤵
PID:1587

/usr/bin/zcat
zcat "/var/log/auth*"
2⤵
PID:1588

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:1588

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:1588

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:1588

/usr/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:1588

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1589

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1590

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1591

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1592

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1595

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1596

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1597

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1598

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1599

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1600

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1607

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1608

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1609

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1610

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1611

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1612

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1613

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1614

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1615

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1616

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1617

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1618

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1622

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1623

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1624

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1625

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1626

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1627

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Account Manipulation

T1098

SSH Authorized Keys

T1098.004

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

Clear Linux or Mac System Logs

T1070.002

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc
Filesize
8.7MB

MD5
682ac123d740321e6ba04d82e8cc4ed8

SHA1
088a8c8c2b7f9db92ec0ae39e1dc77c8707d3895

SHA256
453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

SHA512
26ddc0a1b91337de2314465f82f3a02ec478f32708fa91b7cdf75fc235eda7b3cf7c495616145dc29fc081ac4398cab5aac0d42978ea694fa183518533fcf4ad

Download Submit