f98738570d8c66e4c87bdec0d6d9ccb5f7de0421cc734e1af55664e6bf446f46

Analysis

max time kernel
196s
max time network
202s
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

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 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

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

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

Deletes itself 1 IoCs

Processes:

pid

1557
Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
antivm

Virtualization/Sandbox Evasion
T1497

Processes:

cat

description ioc process

File opened for reading /proc/cpuinfo cat

pid
1557

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

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619

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

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

Processes:

freefreeuptimeuptimefreeuptimefreeuptimefreeuptimeuptimeuptimeuptimefreefreeuptimefreeuptimeuptimefreefreefreeuptimefreeuptimefreefreeuptimeuptimefree

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	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	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	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	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	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	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	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	free

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619freeuptimeuptimejournalctluptimeuptimefree

description	ioc	process
File opened for reading	/proc/974/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1205/stat
File opened for reading	/proc/567/stat
File opened for reading	/proc/17/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/78/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/10/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1192/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/585/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/663/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/493/stat
File opened for reading	/proc/1031/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/482/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1267/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1395/cmdline
File opened for reading	/proc/1091/stat
File opened for reading	/proc/275/stat
File opened for reading	/proc/36/stat
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/177/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/981/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/31/cmdline
File opened for reading	/proc/965/stat
File opened for reading	/proc/filesystems	journalctl
File opened for reading	/proc/1177/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1544/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/175/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/31/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1147/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1197/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/181/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1139/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/23/stat
File opened for reading	/proc/1192/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/180/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/80/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1143/cmdline
File opened for reading	/proc/460/cmdline
File opened for reading	/proc/171/stat
File opened for reading	/proc/981/stat
File opened for reading	/proc/1125/stat
File opened for reading	/proc/460/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/167/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/18/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/1200/cmdline
File opened for reading	/proc/177/cmdline
File opened for reading	/proc/36/cmdline
File opened for reading	/proc/530/cmdline
File opened for reading	/proc/455/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/1143/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/83/cmdline	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/466/stat
File opened for reading	/proc/530/stat
File opened for reading	/proc/179/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/34/stat	453468b86856665f2cc0e0e71668c0b6aac8b14326c623995ba5963f22257619
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/179/stat
File opened for reading	/proc/266/stat
File opened for reading	/proc/83/stat
File opened for reading	/proc/89/stat
File opened for reading	/proc/82/stat	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
PID:1548

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1571

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1572

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1575

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1576

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1579

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1580

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1601

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1602

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1605

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1606

/bin/uname
uname -a
1⤵
PID:1562

/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1563

/bin/cat
cat /etc/issue
1⤵
PID:1564

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1565

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1566

/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads runtime system information
PID:1567

/bin/cat
cat "/var/log/auth*"
1⤵
PID:1569

/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1570

/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1570

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1573

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1574

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1577

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1578

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1585

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1586

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1597

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1598

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1599

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1600

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1603

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1604

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1608

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1609

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1611

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1612

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1613

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1614

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

Replay Monitor

Loading Replay Monitor...

Downloads

/root/.ssh/authorized_keys

Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

Download Submit