f98738570d8c66e4c87bdec0d6d9ccb5f7de0421cc734e1af55664e6bf446f46

Analysis

max time kernel
166s
max time network
173s
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/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
Size

8.7MB
MD5

c947363b50231882723bd6b07bc291ca
SHA1

7b9a425f09da9be5dda5facff18c5fd15eed253a
SHA256

985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
SHA512

45f511f6fe78bba853789f85549c8ac591b7812e2fc969a13148bbd1112fa356f6a1ee88a22a907e7f62ef79a0d14d75681eecd2a17f027d105afd381f161184
SSDEEP

98304:vM6uc5LRC1PApsX8mygFiQS8Mi0e6oIOPxOGdG20t7Xk:vM6uc5LRCepmPEQXMir6oIOPoCM

Score

8^/10

antivm persistence

Malware Config

Signatures

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

Processes:

description ioc

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

Processes:

pid

1541
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
Deletes log files 1 TTPs 1 IoCs
Deletes log files on the system.

Indicator Removal
T1070

Processes:

description ioc

File deleted /var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
Enumerates running processes
Discovers information about currently running processes on the system

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

pid
1541

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

description	ioc
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

Processes:

freefreeuptimefreefreeuptimefreeuptimefreeuptimeuptimefreeuptimefreeuptimeuptimeuptimeuptimeuptimeuptimefreeuptimefreefreefreeuptimefreeuptimefreefree

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	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	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	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	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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

freeuptimefreeuptimefreejournalctluptimefreefreefreeuptime

description	ioc
File opened for reading	/proc/1063/stat
File opened for reading	/proc/164/stat
File opened for reading	/proc/1385/cmdline
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/1316/cmdline
File opened for reading	/proc/10/stat
File opened for reading	/proc/1263/stat
File opened for reading	/proc/644/stat
File opened for reading	/proc/1466/stat
File opened for reading	/proc/34/stat
File opened for reading	/proc/5/cmdline
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1534/cmdline
File opened for reading	/proc/168/cmdline
File opened for reading	/proc/1162/stat
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/31/stat
File opened for reading	/proc/681/cmdline
File opened for reading	/proc/self/stat	journalctl
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/1130/cmdline
File opened for reading	/proc/1510/cmdline
File opened for reading	/proc/475/cmdline
File opened for reading	/proc/1044/stat
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/15/cmdline
File opened for reading	/proc/1532/stat
File opened for reading	/proc/533/stat
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/2/cmdline
File opened for reading	/proc/208/cmdline
File opened for reading	/proc/168/stat
File opened for reading	/proc/18/stat
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/15/stat
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1078/stat
File opened for reading	/proc/169/stat
File opened for reading	/proc/175/stat
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/504/stat
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1162/cmdline
File opened for reading	/proc/16/cmdline
File opened for reading	/proc/1199/stat
File opened for reading	/proc/165/stat
File opened for reading	/proc/2/stat
File opened for reading	/proc/1532/cmdline
File opened for reading	/proc/496/cmdline
File opened for reading	/proc/590/cmdline
File opened for reading	/proc/1534/stat
File opened for reading	/proc/7/stat
File opened for reading	/proc/84/stat
File opened for reading	/proc/14/cmdline
File opened for reading	/proc/29/cmdline
File opened for reading	/proc/4/cmdline
File opened for reading	/proc/7/cmdline
File opened for reading	/proc/1030/stat
File opened for reading	/proc/21/cmdline
File opened for reading	/proc/534/cmdline
File opened for reading	/proc/1156/cmdline

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
1⤵
PID:1534

/bin/uname
uname -a
1⤵
PID:1548

/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1549

/bin/cat
cat /etc/issue
1⤵
PID:1550

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1551

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1552

/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads runtime system information
PID:1556

/bin/cat
cat "/var/log/auth*"
1⤵
PID:1558

/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1559

/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1559

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1572

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

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

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1575

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1576

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

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1578

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1579

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1580

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1581

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1582

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1583

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1584

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

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

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1587

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1588

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1589

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1590

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1591

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1592

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1593

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1594

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1595

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1596

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

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1598

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

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Indicator Removal

T1070

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

/root/.ssh/authorized_keys
Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

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