b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
149s
max time network
154s
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/2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
Size

8.7MB
MD5

3a371a09bfcba3d545465339f1e1d481
SHA1

7f5712878929aab6a2ab297072a5a5f3d3c15a01
SHA256

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
SHA512

35efc5129316ea697f1f4591c37e70c74b643942cdb3cb1aac6a0f14f5d133da39c0c393439490bc059361e9feeacee3d4056f88700f56dfe1088ba0ab22613b
SSDEEP

98304:f/VrKprvLVtb8E0dD71puy219CZ2gT3/3Khbw+Aw:3VrKpjROndH1puy219CZBShb

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:

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

description ioc process

File opened for modification /root/.ssh/authorized_keys 2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
Deletes itself 1 IoCs

Processes:

pid

2514

description	ioc	process
File opened for modification	/root/.ssh/authorized_keys	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

pid
2514

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

Processes:

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

description	ioc	process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

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:

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

description	ioc	process
File opened for reading	/sys/kernel/mm/transparent_hugepage/hpage_pmd_size	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

discovery

Processes:

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86uptimefreeuptimeuptimeuptimeuptimeuptimeuptime

description	ioc	process
File opened for reading	/proc/21/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2154/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/438/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/6/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1692/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2190/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/191/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1962/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/63/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/8/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1803/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/384/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1784/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/25/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2034/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/12/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1950/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2034/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/35/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1066/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2508/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/80/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1784/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2254/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2505/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/55/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1700/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2147/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/20/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/25/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/46/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/40/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/194/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/197/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/29/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/182/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/2002/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/201/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/28/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/30/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/69/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1980/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/14/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/12/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/199/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/386/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/510/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/509/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/80/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/11/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/1980/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/338/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/5/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/32/cmdline	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
File opened for reading	/proc/13/stat	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

Processes:

2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

description	ioc	process
File opened for modification	/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/nc	2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86
1⤵
- Adds new SSH keys
- Deletes log files
- Enumerates kernel/hardware configuration
- Reads runtime system information
- Writes file to tmp directory
PID:2509

/usr/bin/uname
uname -a
2⤵
PID:2532

/usr/bin/cat
cat /proc/cpuinfo
2⤵
- Checks CPU configuration
PID:2533

/usr/bin/cat
cat /etc/issue
2⤵
PID:2534

/usr/bin/free
free -m
2⤵
PID:2535

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2536

/usr/bin/journalctl
journalctl -S "@0" -u sshd
2⤵
PID:2537

/usr/bin/cat
cat "/var/log/auth*"
2⤵
PID:2538

/usr/bin/zcat
zcat "/var/log/auth*"
2⤵
PID:2539

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2539

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2539

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2539

/usr/bin/gzip
gzip -cd "/var/log/auth*"
2⤵
PID:2539

/usr/bin/free
free -m
2⤵
PID:2540

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2541

/usr/bin/free
free -m
2⤵
PID:2542

/usr/bin/uptime
uptime
2⤵
PID:2543

/usr/bin/free
free -m
2⤵
PID:2547

/usr/bin/uptime
uptime
2⤵
PID:2548

/usr/bin/free
free -m
2⤵
PID:2549

/usr/bin/uptime
uptime
2⤵
PID:2550

/usr/bin/free
free -m
2⤵
PID:2551

/usr/bin/uptime
uptime
2⤵
PID:2552

/usr/bin/free
free -m
2⤵
PID:2553

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2554

/usr/bin/free
free -m
2⤵
PID:2555

/usr/bin/uptime
uptime
2⤵
PID:2556

/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⤵
- Reads runtime system information
PID:2560

/usr/bin/free
free -m
2⤵
- Reads runtime system information
PID:2561

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2562

/usr/bin/free
free -m
2⤵
PID:2563

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

/usr/bin/free
free -m
2⤵
PID:2580

/usr/bin/uptime
uptime
2⤵
- Reads runtime system information
PID:2581

/usr/bin/free
free -m
2⤵
PID:2585

/usr/bin/uptime
uptime
2⤵
PID:2586

/usr/bin/free
free -m
2⤵
PID:2587

/usr/bin/uptime
uptime
2⤵
PID:2588

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
3a371a09bfcba3d545465339f1e1d481

SHA1
7f5712878929aab6a2ab297072a5a5f3d3c15a01

SHA256
2378e76aba1ad6e0c937fb39989217bf0de616fdad4726c0f4233bf5414cde86

SHA512
35efc5129316ea697f1f4591c37e70c74b643942cdb3cb1aac6a0f14f5d133da39c0c393439490bc059361e9feeacee3d4056f88700f56dfe1088ba0ab22613b

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