b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
141s
platform
ubuntu-22.04_amd64
resource
ubuntu2204-amd64-20240522.1-en
resource tags

arch:amd64arch:i386image:ubuntu2204-amd64-20240522.1-enkernel:5.15.0-105-genericlocale:en-usos:ubuntu-22.04-amd64system
submitted
18-07-2024 21:48

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General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
Size

8.7MB
MD5

3fe7b88a9ba6c5acee4faae760642b78
SHA1

bae245bc98c516604838c6ce5a233f066de44a50
SHA256

6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
SHA512

02abc8d4fe280306a9ac6a25d28cf174a8d51a43d98b6837bc129701d8c0ab486eebaeef11062b58c455627d4de7c8782b3828aa02891fe439ca1ca617038f95
SSDEEP

98304:g4K0/V2eKEDj+VK61qXXiQqwMwUa/f0OstejSUVv7Xk:g4K0/V2eKM+D4SQbMwX/f0Oskz

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:

6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

description ioc process

File opened for modification /root/.ssh/authorized_keys 6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
Deletes itself 1 IoCs

Processes:

pid

1569

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

pid
1569

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

Indicator Removal

T1070

Processes:

6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

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

Virtualization/Sandbox Evasion
T1497

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

System Information Discovery

T1082

Processes:

freefreefreeuptimeuptimefreefreeuptimefreefreeuptimefreefreefreeuptimeuptimeuptimeuptimefreefreeuptimeuptimefreeuptimeuptimeuptimeuptimefreefreeuptime

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	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	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	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	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	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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69cuptimeuptimeuptimefreefreefreeuptimefreefreefreefreeuptimeuptimefree

description	ioc	process
File opened for reading	/proc/636/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1159/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/20/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/696/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/15/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/225/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/202/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/208/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1384/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1577/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/78/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/90/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/196/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/415/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/80/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/102/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/740/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/7/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/91/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1487/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/1564/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1191/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/7/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1113/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/740/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/79/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/2/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/81/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1054/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1083/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/408/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/633/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/86/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1285/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/24/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/967/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/23/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/775/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/93/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/783/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/net/core/somaxconn	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1101/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/199/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/519/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/555/cmdline	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/1162/stat	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
File opened for reading	/proc/sys/kernel/osrelease	free

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
- Writes file to tmp directory
PID:1566
- /usr/bin/uname
  uname -a
  2⤵
  PID:1576
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:1580
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:1581
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1582
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1583
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  PID:1584
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:1585
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:1586
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1586
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1586
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1586
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1586
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1587
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1588
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1589
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1590
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1593
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1594
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1595
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1596
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1597
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1598
- /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
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  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
  - Reads runtime system information
  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
  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
  - Reads runtime system information
  PID:1620
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1621
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1622
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  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

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

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Downloads

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc

Filesize
8.7MB

MD5
3fe7b88a9ba6c5acee4faae760642b78

SHA1
bae245bc98c516604838c6ce5a233f066de44a50

SHA256
6fe6808b9cfe654f526108ec61cb5211bb6601d28e192cadf06102073b54f69c

SHA512
02abc8d4fe280306a9ac6a25d28cf174a8d51a43d98b6837bc129701d8c0ab486eebaeef11062b58c455627d4de7c8782b3828aa02891fe439ca1ca617038f95

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