532721dea49ecf01b44954c1eadf2d794290bb020dfdff074319431545317dbf

Analysis

max time kernel
0s
max time network
148s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11-01-2024 05:53

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General

Target

2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe
Size

62KB
MD5

97938884e127a55f516638f331db7ff4
SHA1

54f07b4ab780e3c354f851e1ffde43465a4d5d50
SHA256

532721dea49ecf01b44954c1eadf2d794290bb020dfdff074319431545317dbf
SHA512

53ed543d2ee7458b9260f126a9eec5b16f722668f7235e3aa406d4c4ac16b24b61236de17e5b49f3d2bd9b627a1fafee9305c1d663df7a979137bc2df69d82ff
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDSaOs:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7v

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1640	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe
1640	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 1640	2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe	16
PID 2928 wrote to memory of 1640	2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe	16
PID 2928 wrote to memory of 1640	2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe	16
PID 2928 wrote to memory of 1640	2928	2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-10_97938884e127a55f516638f331db7ff4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
24KB

MD5
fbdcca5cefe99a866ce50be10ceca136

SHA1
4c5bcc4e6d109e8bf7557370b3f8ffd7421e55fe

SHA256
e590f1c019e1dfa6860bbf317cb55d21459bd6241cbd9a9fc0f7642695b18a32

SHA512
ab351b0d17215f473069031bd4fa2433e28593044c03ab83419527390e4511c43be14c54a4a58762480787bb804c032c2527e3076488ffee11b31f3d9e05b2bd

Download Submit
C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
10KB

MD5
4f36079271c07749c10aa17c9a529aa0

SHA1
866ce8a251c1e24f6f1816455b2f948b7f5fea46

SHA256
15c2f8048d8581aa0e2d8f02ea438d0989dc8864fa0d412f5d3d7bca3f955c38

SHA512
da502ae49ecabe146d2c5fd24281ba6c319ce8f2dd5eb06e8c4f39bb7f538db6039903422b07593c5a573a2f09f0d440979c6934d5dd7168a50af6f1defb553f

Download Submit
\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
20KB

MD5
cd5f20ed11f3144cc392582b7c566fd2

SHA1
030d2329e20bc8aac6fdd9aa56b1f05351ea044f

SHA256
61bf66e52b472995f8d9fd08c0918fa4889b89f983cbe98604b5d0a694db7791

SHA512
12544e034f8719d09fae3ae2c16a092152e9d4cc3c8a0b664a6308ecc86432dc5c106610c8c941369982a8f12d042e966b1f83213c3917aab2301ad8558434c1

Download Submit
memory/2928-8-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2928-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2928-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download