b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
152s
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/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
Size

8.7MB
MD5

799c965e0a5a132ec2263d5fea0b0e1c
SHA1

a15c5a706122fabdef1989c893c72c6530fedcb4
SHA256

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
SHA512

6c481a855ee6f81dd388c8a4623e519bfbb9f496dada93672360f0a7476fb2b32fd261324156fd4729cef3cbe13f0a8b5862fe47b6db1860d0d67a77283b5ad8
SSDEEP

98304:VqGMOLT5E2Dy8Ji6LrDl3bTMsEplZ1GW5w+Aw:wGMOLTmaHjLXl3bTMsEpf1x5

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:

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

description ioc process

File opened for modification /root/.ssh/authorized_keys 001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
Deletes itself 1 IoCs

Processes:

pid

2500

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

pid
2500

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

Processes:

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

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:

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

description	ioc	process
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859uptimeuptimefreefreefreefree

description	ioc	process
File opened for reading	/proc/510/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1947/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/194/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/50/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/38/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/13/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1865/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2189/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/274/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/867/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1941/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/797/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/13/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/432/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/48/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1691/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/55/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/8/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1095/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1886/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2039/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/36/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/457/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1862/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2495/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1886/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/48/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/63/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/69/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2480/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/50/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1914/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/37/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1416/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1704/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/15/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/511/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1887/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/587/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/56/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/275/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/30/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1050/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/192/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/53/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2202/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/390/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1060/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2121/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/30/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/12/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1778/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/200/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/26/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1268/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
1⤵
- Adds new SSH keys
- Deletes log files
- Enumerates kernel/hardware configuration
- Reads runtime system information
- Writes file to tmp directory
PID:2497

/usr/bin/uname
uname -a
2⤵
PID:2509

/usr/bin/cat
cat /proc/cpuinfo
2⤵
- Checks CPU configuration
PID:2511

/usr/bin/cat
cat /etc/issue
2⤵
PID:2512

/usr/bin/free
free -m
2⤵
PID:2515

/usr/bin/uptime
uptime
2⤵
PID:2516

/usr/bin/journalctl
journalctl -S "@0" -u sshd
2⤵
PID:2523

/usr/bin/cat
cat "/var/log/auth*"
2⤵
PID:2525

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

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2526

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2526

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2526

/usr/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2526

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2527

/usr/bin/uptime
uptime
2⤵
PID:2528

/usr/bin/free
free -m
2⤵
PID:2529

/usr/bin/uptime
uptime
2⤵
PID:2530

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2534

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2535

/usr/bin/free
free -m
2⤵
PID:2536

/usr/bin/uptime
uptime
2⤵
PID:2537

/usr/bin/free
free -m
2⤵
PID:2538

/usr/bin/uptime
uptime
2⤵
PID:2539

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

/usr/bin/uptime
uptime
2⤵
PID:2541

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2542

/usr/bin/uptime
uptime
2⤵
PID:2543

/usr/bin/free
free -m
2⤵
PID:2544

/usr/bin/uptime
uptime
2⤵
PID:2545

/usr/bin/free
free -m
2⤵
PID:2546

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2547

/usr/bin/free
free -m
2⤵
PID:2548

/usr/bin/uptime
uptime
2⤵
PID:2549

/usr/bin/free
free -m
2⤵
PID:2550

/usr/bin/uptime
uptime
2⤵
PID:2551

/usr/bin/free
free -m
2⤵
PID:2568

/usr/bin/uptime
uptime
2⤵
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
799c965e0a5a132ec2263d5fea0b0e1c

SHA1
a15c5a706122fabdef1989c893c72c6530fedcb4

SHA256
001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

SHA512
6c481a855ee6f81dd388c8a4623e519bfbb9f496dada93672360f0a7476fb2b32fd261324156fd4729cef3cbe13f0a8b5862fe47b6db1860d0d67a77283b5ad8

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