b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
142s
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/3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
Size

8.7MB
MD5

8f0cb7af15afe40ed85f35e1b40b8f38
SHA1

525f97d6e7e3cbb611a1cf37e955c0656f4b3c06
SHA256

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
SHA512

bd9e97b4042d89e081eced5781149b0d8e28a6e9d35c2a449a21aee26765ed8eea560434ba5e9a897c4e4c89d7a2b8997e31ad4ac2202a940b8731a5f447170d
SSDEEP

98304:xFjhn+LznCFajBKs/Q1N4KGWISZOLor5lkFIGGw+Aw:Hjhn+HCS4s41N4KGWISZd5lrGG

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:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description ioc process

File opened for modification /root/.ssh/authorized_keys 3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
Deletes itself 1 IoCs

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

pid process

1568 3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

pid	process
1568	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

Indicator Removal

T1070

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

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:

uptimeuptimeuptimeuptimefreeuptimefreeuptimefreefreeuptimeuptimefreeuptimeuptimefreeuptimefreefreefreefreeuptimeuptimefreefreefreefreeuptimefreeuptime

description	ioc	process
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	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	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	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	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

Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

Reads contents of /sys virtual filesystem to enumerate system information.

System Information Discovery

T1082

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description	ioc	process
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5uptimeuptimefreefreejournalctlfreeuptimeuptimeuptimefreeuptimeuptimeuptimeuptime

description	ioc	process
File opened for reading	/proc/408/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/414/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/sys/net/core/somaxconn	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1041/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1305/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/10/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/8/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/94/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/214/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/83/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/93/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/102/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1099/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/699/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1166/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1204/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/699/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/80/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/414/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/593/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/25/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/98/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1041/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/filesystems	journalctl
File opened for reading	/proc/93/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1163/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/588/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/664/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1036/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/759/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1374/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/96/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/1588/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/452/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/706/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/20/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/13/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/214/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/867/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/1449/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/220/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/226/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/102/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1137/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1198/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/587/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/11/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/208/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/990/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/sys/kernel/osrelease	uptime

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
1⤵
- Adds new SSH keys
- Deletes itself
- Deletes log files
- Enumerates kernel/hardware configuration
- Reads runtime system information
- Writes file to tmp directory
PID:1568
- /usr/bin/uname
  uname -a
  2⤵
  PID:1579
- /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
  - Reads runtime system information
  PID:1582
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1583
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  - Reads runtime system information
  PID:1588
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:1589
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:1590
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1590
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1590
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1590
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1590
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1591
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1592
- /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
  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:1601
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1602
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1603
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1604
- /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
  PID:1607
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1608
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1609
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1610
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1611
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  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
  PID:1614
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1618
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1619
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1620
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1621
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1622
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1623

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
8f0cb7af15afe40ed85f35e1b40b8f38

SHA1
525f97d6e7e3cbb611a1cf37e955c0656f4b3c06

SHA256
3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

SHA512
bd9e97b4042d89e081eced5781149b0d8e28a6e9d35c2a449a21aee26765ed8eea560434ba5e9a897c4e4c89d7a2b8997e31ad4ac2202a940b8731a5f447170d

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