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 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

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
b2e0eede7b18253dccd0d44ebb5db85a

SHA1
ee5db9590090efd5549e1c17ec1ee956ef1ed3d1

SHA256
7f18e5b5b7645a80a0d44adf3fecdafcbf937bfe30a4cfb965a1421e034996dd

SHA512
5608fe7bde5072de7c98bacfe7beb928e6073be87c0fbccd8075c808d9a7c642abe254f6eb620d627f5324e35821fc9b41a31970264abcc472adfbe2c214a9fe

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