b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
152s
max time network
143s
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/30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
Size

8.6MB
MD5

819b0fdb2b9c8a440b734a7b72522f12
SHA1

f3aff7e1c44d21508eb60797211570c84a53597a
SHA256

30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
SHA512

fee2c0dbbc91e2486e409e8b6a877c6ec500e6c7c0491d4c44d37006c30de79b95dd4640c7c8c8efcc920abccbdb659a590fde1e2526126279b7486778d08b5a
SSDEEP

98304:zhPTaS9ki2kJxOU/ci9Z6uHFg3+QIEvRihdF7Xk:dPTaS9kitnEi9Z6uHq3+XE8z

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

Processes:

30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01

description	ioc
File opened for modification	/root/.ssh/authorized_keys
File opened for modification	/root/.ssh/authorized_keys	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01

Deletes itself 1 IoCs

Processes:

pid

1633
Reads EFI boot settings 1 IoCs
Reads EFI boot settings from the efivars filesystem, may contain security secrets or sensitive data.
infostealer

Processes:

journalctl

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

Processes:

cat

description ioc process

File opened for reading /proc/cpuinfo cat

pid
1633

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

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

Processes:

30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01

description	ioc
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01

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

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

Processes:

freefreefreefreeuptimeuptimefreeuptimefreefreefreefreefreeuptimeuptimefreeuptimeuptimeuptimeuptimeuptimeuptimeuptimeuptimefreeuptimefreeuptimefreefree

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

Enumerates kernel/hardware configuration 1 TTPs 1 IoCs
Reads contents of /sys virtual filesystem to enumerate system information.

System Information Discovery
T1082

Processes:

journalctl

description ioc process

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

description	ioc	process
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.

Processes:

30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01freefreeuptimeuptimeuptimeuptime

description	ioc
File opened for reading	/proc/542/cmdline
File opened for reading	/proc/445/stat
File opened for reading	/proc/455/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/991/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/162/cmdline
File opened for reading	/proc/167/cmdline
File opened for reading	/proc/449/cmdline
File opened for reading	/proc/self/auxv	free
File opened for reading	/proc/93/stat
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/981/cmdline
File opened for reading	/proc/15/stat
File opened for reading	/proc/91/stat
File opened for reading	/proc/1100/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/1004/cmdline
File opened for reading	/proc/1078/cmdline
File opened for reading	/proc/1101/cmdline
File opened for reading	/proc/396/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/159/cmdline
File opened for reading	/proc/970/cmdline
File opened for reading	/proc/1117/stat
File opened for reading	/proc/10/cmdline
File opened for reading	/proc/1188/cmdline
File opened for reading	/proc/903/cmdline
File opened for reading	/proc/1514/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/916/cmdline
File opened for reading	/proc/1054/stat
File opened for reading	/proc/7/stat
File opened for reading	/proc/1131/stat
File opened for reading	/proc/174/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/6/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/1079/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/1412/cmdline
File opened for reading	/proc/1516/cmdline
File opened for reading	/proc/201/cmdline
File opened for reading	/proc/611/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/266/cmdline
File opened for reading	/proc/77/cmdline
File opened for reading	/proc/554/stat
File opened for reading	/proc/7/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1075/cmdline
File opened for reading	/proc/105/stat
File opened for reading	/proc/636/stat
File opened for reading	/proc/1124/stat
File opened for reading	/proc/5/stat
File opened for reading	/proc/self/auxv	uptime
File opened for reading	/proc/1400/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/15/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/1409/cmdline
File opened for reading	/proc/164/cmdline
File opened for reading	/proc/1091/stat
File opened for reading	/proc/1503/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/170/cmdline
File opened for reading	/proc/79/cmdline
File opened for reading	/proc/1075/stat
File opened for reading	/proc/1443/stat
File opened for reading	/proc/22/stat
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1066/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/1563/stat	30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
File opened for reading	/proc/1023/cmdline

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/30c150419000d27dafcd5d00702411b2b23b0f5d7e4d0cc729a7d63b2e460a01
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
PID:1630

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1931

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:1932

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:1933

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:1934

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:2081

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:2082

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2085

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:2086

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2095

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:2096

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2099

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:2100

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2103

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:2104

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2108

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
- Reads runtime system information
PID:2109

/usr/bin/free
free -m
2⤵
- Reads CPU attributes
PID:2110

/usr/bin/uptime
uptime
2⤵
- Reads CPU attributes
PID:2111

/usr/bin/uname
uname -a
1⤵
PID:1640

/usr/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1644

/usr/bin/cat
cat /etc/issue
1⤵
PID:1645

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1646

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1647

/usr/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads EFI boot settings
- Enumerates kernel/hardware configuration
PID:1650

/usr/bin/cat
cat "/var/log/auth*"
1⤵
PID:1651

/usr/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1652

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1652

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1652

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1652

/usr/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1652

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2083

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2084

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2093

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2094

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2097

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2098

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2101

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2102

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2106

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2107

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Indicator Removal

T1070

Credential Access

Discovery

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

/root/.ssh/authorized_keys
Filesize
381B

MD5
9da18d38b6dd4c4aa84642378d63fa89

SHA1
c5a976691e4b5963b5e760044f22cc9685268db6

SHA256
43062900b2539d8d1f67f30fa7042c56b53541f63875b5f0de5d8fbde0e0a8bf

SHA512
222b20b5b2ff8956c13dbac1f8d3f81435613b751913d65f4c4082ea9c1a7c8ae91be17a24ef4ae0c708bfe09daab552bb209615714d70acfaaed89c536c71b3

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