b7dd3bce3ebfbc2d5e3a9f00d47f27cb6a5895c4618c878e314e573a7c216df1

Analysis

max time kernel
155s
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
03-03-2024 03:21

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General

Target

The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
Size

8.7MB
MD5

d4e533f9c11b5cc9e755d94c1315553a
SHA1

9e15020cd2688b537bae18e5f291ee8cbe9a85e7
SHA256

7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
SHA512

149226355b2e5c3fac403289b5e66bd4164a7aee76d8dc8f1d698c509db7a081bad9d4172cc950bb0e6e6909e0073d551dcde82cbeaaf61a9c1b02c9ba48fb38
SSDEEP

98304:H27or8Dynb9c4EHv9/fW/NQXPvTCaedQuMBiHAUU4C7Xk:H27or8DyO4UnwQfvTCXdQuMoUj

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	Process not Found
File opened for modification	/root/.ssh/authorized_keys	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6

Deletes itself 1 IoCs

pid
1494

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/7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File deleted	/var/log/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6	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	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	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	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
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	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/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/516/cmdline	Process not Found
File opened for reading	/proc/534/cmdline	Process not Found
File opened for reading	/proc/78/cmdline	Process not Found
File opened for reading	/proc/160/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/972/cmdline	Process not Found
File opened for reading	/proc/168/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/172/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/612/cmdline	Process not Found
File opened for reading	/proc/9/stat	Process not Found
File opened for reading	/proc/989/stat	Process not Found
File opened for reading	/proc/168/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/1314/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/950/cmdline	Process not Found
File opened for reading	/proc/930/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/242/cmdline	Process not Found
File opened for reading	/proc/1087/stat	Process not Found
File opened for reading	/proc/1445/stat	Process not Found
File opened for reading	/proc/393/stat	Process not Found
File opened for reading	/proc/950/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/816/cmdline	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/500/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/688/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/1094/cmdline	Process not Found
File opened for reading	/proc/616/stat	Process not Found
File opened for reading	/proc/81/stat	Process not Found
File opened for reading	/proc/92/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/167/cmdline	Process not Found
File opened for reading	/proc/105/stat	Process not Found
File opened for reading	/proc/14/stat	Process not Found
File opened for reading	/proc/785/stat	Process not Found
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/18/cmdline	Process not Found
File opened for reading	/proc/1088/stat	Process not Found
File opened for reading	/proc/1463/stat	Process not Found
File opened for reading	/proc/548/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/162/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/165/cmdline	Process not Found
File opened for reading	/proc/1314/stat	Process not Found
File opened for reading	/proc/1098/stat	Process not Found
File opened for reading	/proc/1098/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/161/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/476/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/613/cmdline	Process not Found
File opened for reading	/proc/668/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/488/cmdline	Process not Found
File opened for reading	/proc/162/stat	Process not Found
File opened for reading	/proc/1098/cmdline	Process not Found
File opened for reading	/proc/670/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/70/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/90/cmdline	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/1215/stat	Process not Found
File opened for reading	/proc/70/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/621/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/1543/cmdline	Process not Found
File opened for reading	/proc/1545/cmdline	Process not Found
File opened for reading	/proc/2/stat	Process not Found
File opened for reading	/proc/1108/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/1497/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/393/cmdline	Process not Found
File opened for reading	/proc/177/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
File opened for reading	/proc/175/cmdline	Process not Found
File opened for reading	/proc/118/stat	7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6

/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
/tmp/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
1⤵
- Adds new SSH keys
- Deletes log files
- Reads runtime system information
PID:1487
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2100
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2101
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2106
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2107
- /usr/bin/free
  free -m
  2⤵
  - Reads CPU attributes
  PID:2113
- /usr/bin/uptime
  uptime
  2⤵
  - Reads CPU attributes
  PID:2114

/usr/bin/uname
uname -a
1⤵
PID:1504

/usr/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1505

/usr/bin/cat
cat /etc/issue
1⤵
PID:1506

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1507

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1508

/usr/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
- Reads EFI boot settings
- Enumerates kernel/hardware configuration
PID:1545

/usr/bin/cat
cat "/var/log/auth*"
1⤵
PID:1551

/usr/bin/zcat
zcat "/var/log/auth*"
1⤵
PID:1552

/usr/local/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1552

/usr/local/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1552

/usr/sbin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1552

/usr/bin/gzip
gzip -cd "/var/log/auth*"
1⤵
PID:1552

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1978

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1979

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2071

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2072

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2084

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2085

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2086

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2087

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

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2095

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2096

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

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

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2099

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

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:2103

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2104

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

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2109

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2110

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:2111

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:2112

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