b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
156s
max time network
163s
platform
ubuntu-20.04_amd64
resource
ubuntu2004-amd64-20240221-en
resource tags

arch:amd64arch:i386image:ubuntu2004-amd64-20240221-enkernel:5.4.0-169-genericlocale:en-usos:ubuntu-20.04-amd64system
submitted
01-03-2024 21:28

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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 infostealer 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
1524	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859

Reads EFI boot settings 1 IoCs

Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.

infostealer

description	ioc	Process
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	journalctl

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	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	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
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	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	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

Enumerates kernel/hardware configuration 1 TTPs 2 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
File opened for reading	/sys/firmware/efi/efivars/SystemdOptions-8cf2644b-4b0b-428f-9387-6d876050dc67	journalctl

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
File opened for reading	/proc/1305/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/171/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/399/cmdline	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/798/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1409/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/16/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/515/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1092/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/399/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1098/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/951/stat	Process not Found
File opened for reading	/proc/174/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/23/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/990/cmdline	Process not Found
File opened for reading	/proc/176/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1119/stat	Process not Found
File opened for reading	/proc/1/cmdline	Process not Found
File opened for reading	/proc/560/cmdline	Process not Found
File opened for reading	/proc/1524/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/7/cmdline	Process not Found
File opened for reading	/proc/87/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/77/cmdline	Process not Found
File opened for reading	/proc/1047/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/18/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/693/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/979/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/168/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/453/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/560/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/631/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/974/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1060/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/18/cmdline	Process not Found
File opened for reading	/proc/1410/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1141/stat	Process not Found
File opened for reading	/proc/73/stat	Process not Found
File opened for reading	/proc/682/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/11/stat	Process not Found
File opened for reading	/proc/1417/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/539/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/13/stat	Process not Found
File opened for reading	/proc/503/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/906/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/572/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/105/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/505/stat	Process not Found
File opened for reading	/proc/974/stat	Process not Found
File opened for reading	/proc/11/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/503/stat	Process not Found
File opened for reading	/proc/399/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/76/stat	Process not Found
File opened for reading	/proc/78/cmdline	Process not Found
File opened for reading	/proc/177/cmdline	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/505/stat	001eb377f0452060012124cb214f658754c7488ccb82e23ec56b2f45a636c859
File opened for reading	/proc/1134/stat	Process not Found
File opened for reading	/proc/1239/cmdline	Process not Found
File opened for reading	/proc/20/cmdline	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
PID:1524
- /usr/bin/uname
  uname -a
  2⤵
  PID:1538
- /usr/bin/cat
  cat /proc/cpuinfo
  2⤵
  - Checks CPU configuration
  PID:1539
- /usr/bin/cat
  cat /etc/issue
  2⤵
  PID:1540
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1541
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1542
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  - Reads runtime system information
  PID:1926
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1927
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:1928
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:1929
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2113
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2114

/usr/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads EFI boot settings
- Enumerates kernel/hardware configuration
PID:1543

/usr/bin/cat
cat "/var/log/auth*"
1⤵
PID:1544

/usr/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1545

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1545

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1545

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1545

/usr/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1545

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1942

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1943

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1944

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1945

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2105

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2106

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2115

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2116

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2117

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2118

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2119

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2120

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2121

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2122

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2123

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2124

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2127

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2128

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2129

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2130

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2131

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2132

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

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads