b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
153s
max time network
144s
platform
ubuntu-20.04_amd64
resource
ubuntu2004-amd64-20240221-en
resource tags

arch:amd64arch:i386image:ubuntu2004-amd64-20240221-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
submitted
01-03-2024 21:28

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General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
Size

8.7MB
MD5

b2e0eede7b18253dccd0d44ebb5db85a
SHA1

ee5db9590090efd5549e1c17ec1ee956ef1ed3d1
SHA256

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
SHA512

5608fe7bde5072de7c98bacfe7beb928e6073be87c0fbccd8075c808d9a7c642abe254f6eb620d627f5324e35821fc9b41a31970264abcc472adfbe2c214a9fe
SSDEEP

98304:zbc+G4RTwJg0GTvmF3D4cQ1XmkPF0ihOehaOE3Ok7Xk:zbc+G4RTwJGOzfQYkPGihOekj

Score

8^/10

antivm infostealer 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

description	ioc	Process
File opened for modification	/root/.ssh/authorized_keys	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for modification	/root/.ssh/authorized_keys	Process not Found

Deletes itself 1 IoCs

pid	Process
1927	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

Reads EFI boot settings 1 IoCs

Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.

infostealer

description	ioc	Process
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	journalctl

Checks CPU configuration 1 TTPs 1 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

Virtualization/Sandbox Evasion

T1497

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

description	ioc	Process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd	Process not Found

Enumerates running processes
Discovers information about currently running processes on the system

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

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	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	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
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	free
File opened for reading	/sys/devices/system/cpu/online	uptime
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

description	ioc	Process
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	journalctl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/1100/stat	Process not Found
File opened for reading	/proc/961/stat	Process not Found
File opened for reading	/proc/1123/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1149/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/self/stat	journalctl
File opened for reading	/proc/1445/stat	Process not Found
File opened for reading	/proc/14/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/588/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/674/cmdline	Process not Found
File opened for reading	/proc/3/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1927/stat	Process not Found
File opened for reading	/proc/2017/stat	Process not Found
File opened for reading	/proc/1095/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/860/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1184/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1927/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/493/stat	Process not Found
File opened for reading	/proc/89/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/388/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/79/cmdline	Process not Found
File opened for reading	/proc/443/stat	Process not Found
File opened for reading	/proc/575/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/16/cmdline	Process not Found
File opened for reading	/proc/1302/cmdline	Process not Found
File opened for reading	/proc/1522/cmdline	Process not Found
File opened for reading	/proc/781/cmdline	Process not Found
File opened for reading	/proc/20/stat	Process not Found
File opened for reading	/proc/79/stat	Process not Found
File opened for reading	/proc/1095/cmdline	Process not Found
File opened for reading	/proc/87/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/451/cmdline	Process not Found
File opened for reading	/proc/102/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/165/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1689/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/867/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/3/cmdline	Process not Found
File opened for reading	/proc/filesystems	journalctl
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/676/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/498/cmdline	Process not Found
File opened for reading	/proc/12/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/503/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/174/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/sys/kernel/osrelease	journalctl
File opened for reading	/proc/1465/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1315/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/389/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/447/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1096/cmdline	Process not Found
File opened for reading	/proc/613/stat	Process not Found
File opened for reading	/proc/805/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/1030/cmdline	Process not Found
File opened for reading	/proc/786/cmdline	Process not Found
File opened for reading	/proc/166/stat	Process not Found
File opened for reading	/proc/983/stat	Process not Found
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/389/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1434/cmdline	Process not Found
File opened for reading	/proc/87/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/168/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
1⤵
- Adds new SSH keys
- Deletes itself
- Deletes log files
- Reads runtime system information
PID:1927
- /usr/bin/uname
  uname -a
  2⤵
  PID:1939
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:1943
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:1944
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1945
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1946
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  - Reads EFI boot settings
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:1947
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:1948
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:1949
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1949
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1949
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1949
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1949
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1950
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1951
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1952
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1953
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:2117
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2118
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2127
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2128
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2129
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2130
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2133
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2134
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2137
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2138
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2144
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2145

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2024

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2025

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2119

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2120

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2131

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2132

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2135

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2136

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2140

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2141

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2142

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2143

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

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Downloads

/root/.ssh/authorized_keys

Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads