a180778ee49c3e724c974bca699e353d6cab6cfccaa7fd4f28530c7ef3dca2b2

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 03:35

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General

Target

2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe
Size

63KB
MD5

2e9c6bbcbb01083c0a7f133096099916
SHA1

65952cf52ea6ef096c63b4b4a234f52150cb00a6
SHA256

a180778ee49c3e724c974bca699e353d6cab6cfccaa7fd4f28530c7ef3dca2b2
SHA512

6abdb01ee84cb0a897fb7cc7ab2d01be837716ac64d69c034731df571002e00c289855088e4ae9e2beaf8324f9e0e6edf97e0a7e9942ba94f548a76618900d4e
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF2991G:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7g

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122bf-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122bf-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2680	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_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
2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe
2680	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2680	2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe	28
PID 2800 wrote to memory of 2680	2800	2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-05_2e9c6bbcbb01083c0a7f133096099916_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2800
- 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:2680

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

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

Filesize
63KB

MD5
634deeb8b3244df2cec2193ec58f713b

SHA1
506a618db1290381b80340b3e37fc6abe1bbd5f4

SHA256
bdd58d8b5d6b2dcca35be711af0a8c2de53781b102661019fd48a1e5af12a3b7

SHA512
2417c2515c400d0f44657ab57e5d7d526eec9f0ec6d8d6cbd319af843f64c1f2566f577d3175deda13e2fd5b5524d01cca72a34c275eb91e24e6671725ef26b3

Download Submit
memory/2680-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2800-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2800-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2800-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download