b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
146s
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
04-09-2024 20:01

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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 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

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

description ioc process

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

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

pid process

2498 3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

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

pid	process
2498	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

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

System Checks
T1497.001

Processes:

cat

description ioc process

File opened for reading /proc/cpuinfo cat

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

Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

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

discovery

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.

discovery

Processes:

3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5uptimeuptimeuptimefreefreeuptimeuptime

description	ioc	process
File opened for reading	/proc/787/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1864/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1684/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2288/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/51/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/823/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/2245/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/44/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/8/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/17/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1916/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2256/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/42/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1072/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/750/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1985/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/65/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/389/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/457/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/2482/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1391/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1392/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1959/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/20/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/274/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1861/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1946/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/17/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1979/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1986/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2206/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2135/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/52/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/513/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/773/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/80/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1060/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1986/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/820/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1117/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1940/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/191/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1923/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/884/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/10/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/27/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/56/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/31/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/36/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/6/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1971/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2200/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/50/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/196/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/2135/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/1802/stat	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1897/cmdline	3205603282a636979a55aa1e1be518cd3adcbbe491745d996ceb4b5a4dece0c5

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:2498

/usr/bin/uname
uname -a
2⤵
PID:2513

/usr/bin/cat
cat /proc/cpuinfo
2⤵
- Checks CPU configuration
PID:2514

/usr/bin/cat
cat /etc/issue
2⤵
PID:2515

/usr/bin/free
free -m
2⤵
PID:2516

/usr/bin/uptime
uptime
2⤵
PID:2517

/usr/bin/journalctl
journalctl -S "@0" -u sshd
2⤵
PID:2524

/usr/bin/cat
cat "/var/log/auth*"
2⤵
PID:2526

/usr/bin/zcat
zcat "/var/log/auth*"
2⤵
PID:2527

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2527

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2527

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2527

/usr/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2527

/usr/bin/free
free -m
2⤵
PID:2528

/usr/bin/uptime
uptime
2⤵
PID:2529

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2530

/usr/bin/uptime
uptime
2⤵
PID:2531

/usr/bin/free
free -m
2⤵
PID:2535

/usr/bin/uptime
uptime
2⤵
PID:2536

/usr/bin/free
free -m
2⤵
PID:2537

/usr/bin/uptime
uptime
2⤵
PID:2538

/usr/bin/free
free -m
2⤵
PID:2539

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2540

/usr/bin/free
free -m
2⤵
PID:2541

/usr/bin/uptime
uptime
2⤵
PID:2542

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2543

/usr/bin/uptime
uptime
2⤵
PID:2544

/usr/bin/free
free -m
2⤵
PID:2545

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2546

/usr/bin/free
free -m
2⤵
PID:2547

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2548

/usr/bin/free
free -m
2⤵
PID:2549

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2550

/usr/bin/free
free -m
2⤵
PID:2551

/usr/bin/uptime
uptime
2⤵
PID:2552

/usr/bin/free
free -m
2⤵
PID:2568

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2569

/usr/bin/free
free -m
2⤵
PID:2573

/usr/bin/uptime
uptime
2⤵
PID:2574

/usr/bin/free
free -m
2⤵
PID:2575

/usr/bin/uptime
uptime
2⤵
PID:2576

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Account Manipulation

T1098

SSH Authorized Keys

T1098.004

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

Clear Linux or Mac System Logs

T1070.002

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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