b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Resubmissions

22-10-2024 02:07

241022-cka1nssfkj 10

Analysis

max time kernel
149s
max time network
157s
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
22-10-2024 02:07

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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

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

Deletes itself 1 IoCs

pid	Process
2532	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

Deletes log files 1 TTPs 1 IoCs

Deletes log files on the system.

defense_evasion

Clear Linux or Mac System Logs

T1070.002

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

Virtualization/Sandbox Evasion: Time Based Evasion 1 TTPs 15 IoCs

Adversaries may detect and evade virtualized environments and sandboxes.

defense_evasion

Time Based Evasion

T1497.003

pid	Process
2577	uptime
2603	uptime
2575	uptime
2579	uptime
2581	uptime
2598	uptime
2605	uptime
2559	uptime
2564	uptime
2568	uptime
2573	uptime
2551	uptime
2557	uptime
2566	uptime
2570	uptime

Checks CPU configuration 1 TTPs 1 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

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

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

description	ioc	Process
File opened for reading	/proc/1711/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2451/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/43/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/191/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/794/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/31/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1060/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1071/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/2538/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/80/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/16/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/22/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1992/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2151/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/29/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1863/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2052/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/39/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/35/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1933/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1410/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/64/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1699/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1909/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2500/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/37/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/28/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/45/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/194/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2216/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/31/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/389/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1123/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/56/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2284/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1125/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/432/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/5/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2238/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2272/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/23/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/55/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1954/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2144/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/42/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1412/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1796/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/201/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/198/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/66/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/867/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1719/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2028/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/419/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1125/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/511/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/2238/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

System Network Configuration Discovery 1 TTPs 4 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
2555	gzip
2555	gzip
2555	gzip
2555	gzip

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

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 itself
- Deletes log files
- Enumerates kernel/hardware configuration
- Reads runtime system information
- Writes file to tmp directory
PID:2532
- /usr/bin/uname
  uname -a
  2⤵
  PID:2547
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:2548
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:2549
- /usr/bin/free
  free -m
  2⤵
  PID:2550
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2551
- /usr/bin/journalctl
  journalctl -S "@0" -u sshd
  2⤵
  PID:2552
- /usr/bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:2554
- /usr/bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:2555
- /usr/local/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2555
- /usr/local/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2555
- /usr/sbin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2555
- /usr/bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  - System Network Configuration Discovery
  PID:2555
- /usr/bin/free
  free -m
  2⤵
  PID:2556
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2557
- /usr/bin/free
  free -m
  2⤵
  PID:2558
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2559
- /usr/bin/free
  free -m
  2⤵
  - Reads runtime system information
  PID:2563
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2564
- /usr/bin/free
  free -m
  2⤵
  - Reads runtime system information
  PID:2565
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2566
- /usr/bin/free
  free -m
  2⤵
  PID:2567
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2568
- /usr/bin/free
  free -m
  2⤵
  PID:2569
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2570
- /usr/bin/free
  free -m
  2⤵
  PID:2572
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2573
- /usr/bin/free
  free -m
  2⤵
  PID:2574
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2575
- /usr/bin/free
  free -m
  2⤵
  PID:2576
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2577
- /usr/bin/free
  free -m
  2⤵
  PID:2578
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2579
- /usr/bin/free
  free -m
  2⤵
  PID:2580
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2581
- /usr/bin/free
  free -m
  2⤵
  PID:2597
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2598
- /usr/bin/free
  free -m
  2⤵
  PID:2602
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  - Reads runtime system information
  PID:2603
- /usr/bin/free
  free -m
  2⤵
  PID:2604
- /usr/bin/uptime
  uptime
  2⤵
  - Virtualization/Sandbox Evasion: Time Based Evasion
  PID:2605

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

Time Based Evasion

T1497.003

Credential Access

Discovery

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Time Based Evasion

T1497.003

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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