33c21bf2e0c7f058fc2d76c9fa41e7fa203b1793b45ea61fec551186998f709a

Analysis

max time kernel
0s
max time network
127s
platform
debian-9_armhf
resource
debian9-armhf-20221111-en
resource tags

arch:armhfimage:debian9-armhf-20221111-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
28-12-2022 14:33

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General

Target

ChrisTitusTech_debloatWin10_elQueAnda/cttscript/HyperV Tools/arch.sh
Size

3KB
MD5

61f97d46bef37eafc2f53a6c7a342605
SHA1

a0566c2a1b9bc4d45cb940f48681fdab1f794d77
SHA256

7aacd932ed5093cd0a43bdb20908ad3415725fbb6c46ffce6e4c35f10766198e
SHA512

2684529e311f2b67f060fbb65ba9bf7c9515bdf50ebef3ebd25114040a687f889b770ed3e7d9686560802aedac59b57a3aacb4ddf6c48c8069bef7c775dcd338

Score

8^/10

Malware Config

Signatures

Modifies hosts file 1 IoCs

Adds to hosts file used for mapping hosts to IP addresses.

description	ioc	Process
/etc/hosts	/etc/hosts	sudo

Writes DNS configuration 1 TTPs 1 IoCs

Writes data to DNS resolver config file.

Dynamic Resolution

T1568

description	ioc	Process
/etc/resolv.conf	/etc/resolv.conf	sudo

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
/sys/fs/kdbus/0-system/bus	/sys/fs/kdbus/0-system/bus	systemctl
/sys/fs/kdbus/0-system/bus	/sys/fs/kdbus/0-system/bus	systemctl

Reads runtime system information 17 IoCs

Reads data from /proc virtual filesystem.

description	ioc	Process
/proc/filesystems	/proc/filesystems	sed
/proc/filesystems	/proc/filesystems	sudo
/proc/filesystems	/proc/filesystems	systemctl
/proc/self/stat	/proc/self/stat	systemctl
/proc/cmdline	/proc/cmdline	systemctl
/proc/filesystems	/proc/filesystems	sed
/proc/filesystems	/proc/filesystems	sed
/proc/filesystems	/proc/filesystems	id
/proc/self/stat	/proc/self/stat	sudo
/proc/1/environ	/proc/1/environ	systemctl
/proc/filesystems	/proc/filesystems	sed
/proc/filesystems	/proc/filesystems	sed
/proc/sys/kernel/ngroups_max	/proc/sys/kernel/ngroups_max	sudo
/proc/filesystems	/proc/filesystems	systemctl
/proc/cmdline	/proc/cmdline	systemctl
/proc/self/stat	/proc/self/stat	systemctl
/proc/1/environ	/proc/1/environ	systemctl

Writes file to tmp directory 3 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
/tmp/ChrisTitusTech_debloatWin10_elQueAnda/cttscript/HyperV Tools/arch.sh	/tmp/ChrisTitusTech_debloatWin10_elQueAnda/cttscript/HyperV Tools/arch.sh	arch.sh
/tmp/tmp.2kuMr3vbtU	/tmp/tmp.2kuMr3vbtU	rm
/tmp/sh-thd.BayiGA	/tmp/sh-thd.BayiGA	Process not Found

/tmp/ChrisTitusTech_debloatWin10_elQueAnda/cttscript/HyperV Tools/arch.sh
"/tmp/ChrisTitusTech_debloatWin10_elQueAnda/cttscript/HyperV Tools/arch.sh"
1⤵
- Writes file to tmp directory
PID:367
- /usr/bin/id
  id -u
  2⤵
  - Reads runtime system information
  PID:369
- /usr/bin/sudo
  sudo pacman -Syu --needed --noconfirm base base-devel git
  2⤵
  - Modifies hosts file
  - Writes DNS configuration
  - Reads runtime system information
  PID:375
- /bin/mktemp
  mktemp -d
  2⤵
  PID:376
- /bin/rm
  rm -rf /tmp/tmp.2kuMr3vbtU
  2⤵
  - Writes file to tmp directory
  PID:381
- /bin/systemctl
  systemctl enable xrdp
  2⤵
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:382
- /bin/systemctl
  systemctl enable xrdp-sesman
  2⤵
  - Enumerates kernel/hardware configuration
  - Reads runtime system information
  PID:383
- /bin/sed
  sed -i_orig -e "s/port=3389/port=vsock:\\/\\/-1:3389/g" /etc/xrdp/xrdp.ini
  2⤵
  - Reads runtime system information
  PID:384
- /bin/sed
  sed -i_orig -e "s/security_layer=negotiate/security_layer=rdp/g" /etc/xrdp/xrdp.ini
  2⤵
  - Reads runtime system information
  PID:385
- /bin/sed
  sed -i_orig -e "s/crypt_level=high/crypt_level=none/g" /etc/xrdp/xrdp.ini
  2⤵
  - Reads runtime system information
  PID:386
- /bin/sed
  sed -i_orig -e "s/bitmap_compression=true/bitmap_compression=false/g" /etc/xrdp/xrdp.ini
  2⤵
  - Reads runtime system information
  PID:387
- /bin/sed
  sed -i_orig -e "s/FuseMountName=thinclient_drives/FuseMountName=shared-drives/g" /etc/xrdp/sesman.ini
  2⤵
  - Reads runtime system information
  PID:388
- /bin/cat
  cat
  2⤵
  PID:390

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Dynamic Resolution

T1568

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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