b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

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22-10-2024 02:07

241022-cka1nssfkj 10

Analysis

max time kernel
149s
max time network
156s
platform
ubuntu-24.04_amd64
resource
ubuntu2404-amd64-20240523-en
resource tags

arch:amd64arch:i386image:ubuntu2404-amd64-20240523-enkernel:6.8.0-31-genericlocale:en-usos:ubuntu-24.04-amd64system
submitted
22-10-2024 02:07

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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 defense_evasion discovery persistence privilege_escalation

Malware Config

Signatures

Adds new SSH keys 1 TTPs 1 IoCs

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

persistence privilege_escalation

SSH Authorized Keys

T1098.004

description	ioc	Process
File opened for modification	/root/.ssh/authorized_keys	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

Deletes itself 1 IoCs

pid	Process
2493	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

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

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

Virtualization/Sandbox Evasion: Time Based Evasion 1 TTPs 15 IoCs

Adversaries may detect and evade virtualized environments and sandboxes.

defense_evasion

Time Based Evasion

T1497.003

pid	Process
2510	uptime
2518	uptime
2527	uptime
2538	uptime
2540	uptime
2516	uptime
2532	uptime
2556	uptime
2563	uptime
2530	uptime
2536	uptime
2561	uptime
2523	uptime
2525	uptime
2534	uptime

Checks CPU configuration 1 TTPs 1 IoCs

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

antivm

System Checks

T1497.001

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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/1899/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/46/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2120/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/772/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2486/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/26/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1944/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/784/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/50/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/723/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2273/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2496/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1847/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1949/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2290/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/10/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1333/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/2168/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1938/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/819/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/389/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/43/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/21/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/13/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/15/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/17/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/52/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/783/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2130/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/574/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2486/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/56/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2488/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1679/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1939/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1391/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/55/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1671/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/189/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1791/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/20/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/23/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/3/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1798/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1939/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/19/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1974/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/198/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/182/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/194/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1081/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1868/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1077/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1763/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1981/cmdline	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/1333/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/192/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
File opened for reading	/proc/2469/stat	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

System Network Configuration Discovery 1 TTPs 4 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
2514	gzip
2514	gzip
2514	gzip
2514	gzip

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86
1⤵
- Adds new SSH keys
- Deletes itself
- Deletes log files
- Reads runtime system information
- Writes file to tmp directory
PID:2490
- /usr/bin/uname
  uname -a
  2⤵
  PID:2505
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:2506
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:2508
- /usr/bin/free
  free -m
  2⤵
  - Reads runtime system information
  PID:2509
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2510
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  PID:2511
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:2513
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:2514
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2514
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2514
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2514
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2514
- /usr/bin/free
  free -m
  2⤵
  PID:2515
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2516
- /usr/bin/free
  free -m
  2⤵
  PID:2517
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2518
- /usr/bin/free
  free -m
  2⤵
  PID:2522
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2523
- /usr/bin/free
  free -m
  2⤵
  PID:2524
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2525
- /usr/bin/free
  free -m
  2⤵
  PID:2526
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2527
- /usr/bin/free
  free -m
  2⤵
  PID:2529
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2530
- /usr/bin/free
  free -m
  2⤵
  - Reads runtime system information
  PID:2531
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2532
- /usr/bin/free
  free -m
  2⤵
  PID:2533
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2534
- /usr/bin/free
  free -m
  2⤵
  PID:2535
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2536
- /usr/bin/free
  free -m
  2⤵
  PID:2537
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2538
- /usr/bin/free
  free -m
  2⤵
  PID:2539
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2540
- /usr/bin/free
  free -m
  2⤵
  PID:2555
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2556
- /usr/bin/free
  free -m
  2⤵
  PID:2560
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2561
- /usr/bin/free
  free -m
  2⤵
  PID:2562
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2563

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Account Manipulation

T1098

SSH Authorized Keys

T1098.004

Privilege Escalation

Account Manipulation

T1098

SSH Authorized Keys

T1098.004

Defense Evasion

Indicator Removal

T1070

Clear Linux or Mac System Logs

T1070.002

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Time Based Evasion

T1497.003

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Time Based Evasion

T1497.003

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
8.7MB

MD5
c947363b50231882723bd6b07bc291ca

SHA1
7b9a425f09da9be5dda5facff18c5fd15eed253a

SHA256
985ffee662969825146d1b465d068ea4f5f01990d13827511415fd497cf9db86

SHA512
45f511f6fe78bba853789f85549c8ac591b7812e2fc969a13148bbd1112fa356f6a1ee88a22a907e7f62ef79a0d14d75681eecd2a17f027d105afd381f161184

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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