f98738570d8c66e4c87bdec0d6d9ccb5f7de0421cc734e1af55664e6bf446f46

Analysis

max time kernel
157s
max time network
162s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20231026-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20231026-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
11-11-2023 13:40

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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 persistence

Malware Config

Signatures

Adds new SSH keys 2 IoCs

Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.

persistence

description	ioc	Process
File opened for modification	/root/.ssh/authorized_keys	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for modification	/root/.ssh/authorized_keys	Process not Found

Deletes itself 1 IoCs

pid	Process
1541	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

Checks CPU configuration 1 TTPs 1 IoCs

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

antivm

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
File opened for reading	/proc/cpuinfo	cat

Deletes log files 1 TTPs 2 IoCs

Deletes log files on the system.

Indicator Removal

T1070

description	ioc	Process
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859	Process not Found

Enumerates running processes
Discovers information about currently running processes on the system

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

description	ioc	Process
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	free
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime
File opened for reading	/sys/devices/system/cpu/online	uptime

Enumerates kernel/hardware configuration 1 TTPs 1 IoCs

Reads contents of /sys virtual filesystem to enumerate system information.

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.

description	ioc	Process
File opened for reading	/proc/1031/cmdline	Process not Found
File opened for reading	/proc/1155/cmdline	Process not Found
File opened for reading	/proc/464/cmdline	Process not Found
File opened for reading	/proc/1340/stat	Process not Found
File opened for reading	/proc/78/stat	Process not Found
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1106/cmdline	Process not Found
File opened for reading	/proc/1446/cmdline	Process not Found
File opened for reading	/proc/197/stat	Process not Found
File opened for reading	/proc/3/stat	Process not Found
File opened for reading	/proc/464/stat	Process not Found
File opened for reading	/proc/475/cmdline	Process not Found
File opened for reading	/proc/428/cmdline	Process not Found
File opened for reading	/proc/526/stat	Process not Found
File opened for reading	/proc/6/cmdline	Process not Found
File opened for reading	/proc/1169/stat	Process not Found
File opened for reading	/proc/162/stat	Process not Found
File opened for reading	/proc/431/cmdline	Process not Found
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/1026/stat	Process not Found
File opened for reading	/proc/1362/stat	Process not Found
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1280/cmdline	Process not Found
File opened for reading	/proc/1312/cmdline	Process not Found
File opened for reading	/proc/656/stat	Process not Found
File opened for reading	/proc/7/cmdline	Process not Found
File opened for reading	/proc/1305/stat	Process not Found
File opened for reading	/proc/36/stat	Process not Found
File opened for reading	/proc/924/stat	Process not Found
File opened for reading	/proc/1120/cmdline	Process not Found
File opened for reading	/proc/168/cmdline	Process not Found
File opened for reading	/proc/14/cmdline	Process not Found
File opened for reading	/proc/1155/stat	Process not Found
File opened for reading	/proc/1536/stat	Process not Found
File opened for reading	/proc/8/stat	Process not Found
File opened for reading	/proc/9/stat	Process not Found
File opened for reading	/proc/1512/stat	Process not Found
File opened for reading	/proc/529/stat	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/105/cmdline	Process not Found
File opened for reading	/proc/472/cmdline	Process not Found
File opened for reading	/proc/84/cmdline	Process not Found
File opened for reading	/proc/15/stat	Process not Found
File opened for reading	/proc/23/stat	Process not Found
File opened for reading	/proc/884/stat	Process not Found
File opened for reading	/proc/self/stat	journalctl
File opened for reading	/proc/19/cmdline	Process not Found
File opened for reading	/proc/526/cmdline	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/116/cmdline	Process not Found
File opened for reading	/proc/937/cmdline	Process not Found
File opened for reading	/proc/168/stat	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/83/stat	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/1265/cmdline	Process not Found
File opened for reading	/proc/966/stat	Process not Found
File opened for reading	/proc/stat	Process not Found
File opened for reading	/proc/1151/cmdline	Process not Found
File opened for reading	/proc/34/cmdline	Process not Found

/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
PID:1541
- /bin/uname
  uname -a
  2⤵
  PID:1552
- /bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:1553
- /bin/cat
  cat /etc/issue
  2⤵
  PID:1554
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1555
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1556

/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads runtime system information
PID:1557

/bin/cat
cat "/var/log/auth*"
1⤵
PID:1559

/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1560

/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1560

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1561

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1562

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1565

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1566

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1567

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1568

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1569

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1570

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1571

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1572

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1573

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1574

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1575

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1576

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1577

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1578

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1579

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1580

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1581

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1582

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1583

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1584

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1585

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1586

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1587

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1588

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1589

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1590

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

/root/.ssh/authorized_keys

Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads