b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
149s
platform
ubuntu-24.04_amd64
resource
ubuntu2404-amd64-20240729-en
resource tags

arch:amd64arch:i386image:ubuntu2404-amd64-20240729-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/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
Size

8.7MB
MD5

b2e0eede7b18253dccd0d44ebb5db85a
SHA1

ee5db9590090efd5549e1c17ec1ee956ef1ed3d1
SHA256

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
SHA512

5608fe7bde5072de7c98bacfe7beb928e6073be87c0fbccd8075c808d9a7c642abe254f6eb620d627f5324e35821fc9b41a31970264abcc472adfbe2c214a9fe
SSDEEP

98304:zbc+G4RTwJg0GTvmF3D4cQ1XmkPF0ihOehaOE3Ok7Xk:zbc+G4RTwJGOzfQYkPGihOekj

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:

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

description ioc process

File opened for modification /root/.ssh/authorized_keys 7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
Deletes itself 1 IoCs

Processes:

pid

2523

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

pid
2523

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

Processes:

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996ddfreeuptimefree

description	ioc	process
File opened for reading	/proc/2217/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/33/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/386/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2015/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/10/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1052/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/123/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/10/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2315/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/44/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/69/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1946/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/418/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/45/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2516/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/194/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/26/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1088/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/53/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2578/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/512/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1988/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2260/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1818/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2015/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/432/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1048/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/198/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1345/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/385/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/438/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1921/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2212/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/44/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2446/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/40/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2002/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/860/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2517/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2128/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/23/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/593/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/5/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2169/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/13/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/25/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2518/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/338/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1921/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/25/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/191/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/30/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1998/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1128/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/1827/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2517/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/54/cmdline	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/2315/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/787/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
File opened for reading	/proc/stat	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
- Writes file to tmp directory
PID:2520

/usr/bin/uname
uname -a
2⤵
PID:2541

/usr/bin/cat
cat /proc/cpuinfo
2⤵
- Checks CPU configuration
PID:2542

/usr/bin/cat
cat /etc/issue
2⤵
PID:2544

/usr/bin/free
free -m
2⤵
PID:2545

/usr/bin/uptime
uptime
2⤵
PID:2546

/usr/bin/journalctl
journalctl -S "@0" -u sshd
2⤵
PID:2547

/usr/bin/cat
cat "/var/log/auth*"
2⤵
PID:2548

/usr/bin/zcat
zcat "/var/log/auth*"
2⤵
PID:2549

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2549

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2549

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2549

/usr/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2549

/usr/bin/free
free -m
2⤵
PID:2550

/usr/bin/uptime
uptime
2⤵
PID:2551

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2552

/usr/bin/uptime
uptime
2⤵
PID:2553

/usr/bin/free
free -m
2⤵
PID:2557

/usr/bin/uptime
uptime
2⤵
PID:2558

/usr/bin/free
free -m
2⤵
PID:2559

/usr/bin/uptime
uptime
2⤵
PID:2560

/usr/bin/free
free -m
2⤵
PID:2561

/usr/bin/uptime
uptime
2⤵
PID:2562

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2564

/usr/bin/uptime
uptime
2⤵
PID:2565

/usr/bin/free
free -m
2⤵
PID:2566

/usr/bin/uptime
uptime
2⤵
PID:2567

/usr/bin/free
free -m
2⤵
PID:2568

/usr/bin/uptime
uptime
2⤵
PID:2569

/usr/bin/free
free -m
2⤵
PID:2570

/usr/bin/uptime
uptime
2⤵
PID:2571

/usr/bin/free
free -m
2⤵
PID:2572

/usr/bin/uptime
uptime
2⤵
PID:2573

/usr/bin/free
free -m
2⤵
PID:2574

/usr/bin/uptime
uptime
2⤵
PID:2575

/usr/bin/free
free -m
2⤵
PID:2590

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2591

/usr/bin/free
free -m
2⤵
PID:2595

/usr/bin/uptime
uptime
2⤵
PID:2596

/usr/bin/free
free -m
2⤵
PID:2597

/usr/bin/uptime
uptime
2⤵
PID:2598

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

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
8.7MB

MD5
b2e0eede7b18253dccd0d44ebb5db85a

SHA1
ee5db9590090efd5549e1c17ec1ee956ef1ed3d1

SHA256
7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

SHA512
5608fe7bde5072de7c98bacfe7beb928e6073be87c0fbccd8075c808d9a7c642abe254f6eb620d627f5324e35821fc9b41a31970264abcc472adfbe2c214a9fe

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