0c2cc0a5b28c132015e7be60096eb6ddeac5e61e7ac1729b957994e5bade03ab

Analysis

max time kernel
147s
max time network
152s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14-03-2024 18:38

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General

Target

2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe
Size

46KB
MD5

78993b26f6d09379617618a44ad5a89f
SHA1

9df3528cee124a73789d00be126cd471fb46756e
SHA256

0c2cc0a5b28c132015e7be60096eb6ddeac5e61e7ac1729b957994e5bade03ab
SHA512

253c5cf5f5558a3b70b40852553dd50ec381b99ca1cc55f66a1bb57072277b40c7a5f94e0a29faa4266a04117834a87ed292ebbde02eea4c6a2730c31b92cefa
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxW:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014120-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2808	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_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
1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe
2808	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2808	1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe	28
PID 1700 wrote to memory of 2808	1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe	28
PID 1700 wrote to memory of 2808	1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe	28
PID 1700 wrote to memory of 2808	1700	2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_78993b26f6d09379617618a44ad5a89f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1700
- 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:2808

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
46KB

MD5
74864057bea691d87c8cee00aed699c0

SHA1
63b8fab314d3f33544e21f9be1a19d25f3b5a704

SHA256
c0b26b4bbc710c3fba91e07cede6868d45dd752761bdb54aeba9413069beae2b

SHA512
d204656e6ef4988924e5bdff2bd43a38355636b68dba8d391ba245de1b37f5610dd93810cd130159fae6621fc7951bcb5f7b4dfff24fa792390b1703fbda58f8

Download Submit
memory/1700-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1700-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1700-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2808-18-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download