2d9bb4e3fddfe5dc51c54cba74a1eb594c7be9d34774524d972350edd85e6499

Resubmissions

08-02-2024 01:32

240208-bx7pqsbg96 10

27-01-2024 14:19

240127-rmwgqadhc4 10

Analysis

max time kernel
153s
max time network
145s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20231222-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20231222-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
27-01-2024 14:19

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General

Target

The-MALWARE-Repo-master/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a014
Size

8.7MB
MD5

d4e533f9c11b5cc9e755d94c1315553a
SHA1

9e15020cd2688b537bae18e5f291ee8cbe9a85e7
SHA256

7745b070943e910e8807e3521ac7b7a01401d131bf6c18a63433f8177ed539a6
SHA512

149226355b2e5c3fac403289b5e66bd4164a7aee76d8dc8f1d698c509db7a081bad9d4172cc950bb0e6e6909e0073d551dcde82cbeaaf61a9c1b02c9ba48fb38
SSDEEP

98304:H27or8Dynb9c4EHv9/fW/NQXPvTCaedQuMBiHAUU4C7Xk:H27or8DyO4UnwQfvTCXdQuMoUj

Score

8^/10

antivm persistence

Malware Config

Signatures

Adds new SSH keys 1 IoCs
Linux special file to hold SSH keys. The threat actor may add new keys for further remote access.
persistence

Processes:

description ioc

File opened for modification /root/.ssh/authorized_keys
Deletes itself 1 IoCs

Processes:

pid

1602
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
Deletes log files 1 TTPs 1 IoCs
Deletes log files on the system.

Indicator Removal
T1070

Processes:

description ioc

File deleted /var/log/tmp/The-MALWARE-Repo-master/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a014
Enumerates running processes
Discovers information about currently running processes on the system

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

pid
1602

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

description	ioc
File deleted	/var/log/tmp/The-MALWARE-Repo-master/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a014

Reads CPU attributes 1 TTPs 30 IoCs

System Information Discovery

T1082

Processes:

freeuptimefreefreefreefreeuptimefreeuptimeuptimefreeuptimeuptimefreeuptimeuptimefreefreeuptimefreefreeuptimeuptimeuptimeuptimefreeuptimeuptimefreefree

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	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
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	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
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

Reads runtime system information 64 IoCs

Reads data from /proc virtual filesystem.

Processes:

7745b070943e910e8807e3521ac7b7a014uptimeuptimefreefreeuptimefreeuptimeuptime

description	ioc
File opened for reading	/proc/161/cmdline
File opened for reading	/proc/167/stat
File opened for reading	/proc/684/stat
File opened for reading	/proc/483/cmdline
File opened for reading	/proc/1038/stat
File opened for reading	/proc/34/cmdline
File opened for reading	/proc/483/cmdline	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1140/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/483/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/853/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1267/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/204/stat
File opened for reading	/proc/1140/cmdline
File opened for reading	/proc/166/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/173/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/995/stat
File opened for reading	/proc/sys/kernel/osrelease	uptime
File opened for reading	/proc/25/cmdline
File opened for reading	/proc/27/cmdline
File opened for reading	/proc/253/stat
File opened for reading	/proc/1247/stat
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/727/stat
File opened for reading	/proc/1100/cmdline
File opened for reading	/proc/1260/cmdline
File opened for reading	/proc/35/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/83/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/25/stat
File opened for reading	/proc/1133/cmdline
File opened for reading	/proc/1158/cmdline
File opened for reading	/proc/1603/cmdline
File opened for reading	/proc/853/cmdline
File opened for reading	/proc/17/stat
File opened for reading	/proc/172/stat
File opened for reading	/proc/18/stat
File opened for reading	/proc/1115/cmdline
File opened for reading	/proc/1107/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1169/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1148/stat
File opened for reading	/proc/165/stat
File opened for reading	/proc/871/stat
File opened for reading	/proc/493/cmdline
File opened for reading	/proc/166/cmdline
File opened for reading	/proc/163/stat
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/sys/kernel/osrelease	free
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/997/stat
File opened for reading	/proc/17/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/177/stat	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1157/stat
File opened for reading	/proc/444/stat
File opened for reading	/proc/498/stat
File opened for reading	/proc/4/cmdline
File opened for reading	/proc/loadavg	uptime
File opened for reading	/proc/meminfo	free
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1129/cmdline
File opened for reading	/proc/1578/cmdline
File opened for reading	/proc/79/cmdline	7745b070943e910e8807e3521ac7b7a014
File opened for reading	/proc/1311/stat
File opened for reading	/proc/uptime	uptime
File opened for reading	/proc/1278/cmdline
File opened for reading	/proc/163/cmdline

/tmp/The-MALWARE-Repo-master/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a014
/tmp/The-MALWARE-Repo-master/The-MALWARE-Repo-master/Botnets/FritzFrog/7745b070943e910e8807e3521ac7b7a014
1⤵
- Reads runtime system information
PID:1596
- /bin/cat
  cat "/var/log/auth*"
  2⤵
  PID:1625
- /bin/zcat
  zcat "/var/log/auth*"
  2⤵
  PID:1626
- /bin/gzip
  gzip -cd "/var/log/auth*"
  2⤵
  PID:1626

/bin/uname
uname -a
1⤵
PID:1609

/bin/cat
cat /proc/cpuinfo
1⤵
- Checks CPU configuration
PID:1610

/bin/cat
cat /etc/issue
1⤵
PID:1611

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1612

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1613

/bin/journalctl
journalctl -S "@0" -u sshd
1⤵
PID:1624

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1627

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1628

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1629

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1630

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1633

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1634

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1635

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1636

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1637

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1638

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1639

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1640

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1642

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1643

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1644

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1645

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

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

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1648

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1649

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1650

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1651

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1652

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
- Reads runtime system information
PID:1653

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1654

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1655

/usr/bin/free
free -m
1⤵
- Reads CPU attributes
PID:1656

/usr/bin/uptime
uptime
1⤵
- Reads CPU attributes
PID:1657

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

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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