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
18-07-2024 21:48

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General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
Size

8.7MB
MD5

76fe4fdd628218f630ba50f91ceba852
SHA1

6e90f2fe619597115e5b8dd8b0d1fb0c8ad33fa4
SHA256

041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
SHA512

7956505ae0d8479a92ddf97bb09a757566ef526934ee06b4273f0fc450e4da9204808ffa4f4674f4e6e313eb718a7c65f258ef8d23b9769b8aa12d47610d8011
SSDEEP

98304:f27or8Dynb9c4EHv9/fW/NQXPvTCaedHuaJE3fSdCnKg27Xk:f27or8DyO4UnwQfvTCXdHua4No

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:

041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

description ioc process

File opened for modification /root/.ssh/authorized_keys 041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
Deletes itself 1 IoCs

Processes:

pid

1573

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

pid
1573

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

Indicator Removal

T1070

Processes:

041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

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:

uptimeuptimeuptimeuptimefreeuptimeuptimeuptimefreeuptimefreefreeuptimefreefreeuptimefreeuptimefreefreeuptimeuptimefreefreefreefreefreefreeuptimeuptime

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	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	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	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	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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742uptimefreeuptimeuptimefreeuptimefreejournalctlfreefreeuptimefreeuptime

description	ioc	process
File opened for reading	/proc/507/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1016/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/771/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/223/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/511/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/1196/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/315/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/2/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/1373/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/558/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/957/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/20/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/201/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/85/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/866/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/263/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1056/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/25/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1065/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1160/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/110/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/filesystems	journalctl
File opened for reading	/proc/747/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/101/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1566/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1166/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1439/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1193/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/9/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/1434/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/594/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/755/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/90/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1192/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/73/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/88/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/18/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/1057/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1065/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/634/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/223/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/594/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/1569/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/217/cmdline	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1164/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/83/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/85/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/416/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/1097/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/586/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
File opened for reading	/proc/406/stat	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
- Writes file to tmp directory
PID:1570
- /usr/bin/uname
  uname -a
  2⤵
  PID:1581
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:1585
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:1586
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1587
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1588
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  - Reads runtime system information
  PID:1589
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:1590
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:1591
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1591
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1591
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1591
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1591
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1592
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1593
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1594
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1595
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1598
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1599
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1600
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1601
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1602
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1603
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1610
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1611
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1612
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1613
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1614
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1615
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1616
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1617
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1618
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  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:1625
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1626
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1627
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1628
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1629
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1630

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
76fe4fdd628218f630ba50f91ceba852

SHA1
6e90f2fe619597115e5b8dd8b0d1fb0c8ad33fa4

SHA256
041bc20ca8ac3161098cbc976e67e3c0f1b672ad36ecbe22fd21cbd53bcaa742

SHA512
7956505ae0d8479a92ddf97bb09a757566ef526934ee06b4273f0fc450e4da9204808ffa4f4674f4e6e313eb718a7c65f258ef8d23b9769b8aa12d47610d8011

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