1bab6e515375532ed9d76beb50e04ee803fe4f637d73a51a558ed9a54f4a3c9b

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 06:29

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General

Target

2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe
Size

65KB
MD5

3427e1af7f0641b36a86f2575f1970c2
SHA1

89b39c1218a98a3034be09db7b83a124f71fb74b
SHA256

1bab6e515375532ed9d76beb50e04ee803fe4f637d73a51a558ed9a54f4a3c9b
SHA512

b888e9799ac081dc724952662baf7abf621d8032e6ad1b594c514052b6b01e9bea13a7365bb0ae184ed9206f5e8dbf6c2dcda3f890cc3eafa15ad1b0d499248f
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLY:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012236-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012236-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3056	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_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
2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe
3056	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 3056	2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe	28
PID 2200 wrote to memory of 3056	2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe	28
PID 2200 wrote to memory of 3056	2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe	28
PID 2200 wrote to memory of 3056	2200	2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_3427e1af7f0641b36a86f2575f1970c2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2200
- 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:3056

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
65KB

MD5
50077bd5447b46c7ae69960df64aa729

SHA1
b3399d40ef656f21eb3d37b05a615b1f09f0dcc9

SHA256
334902cfa287bce2baf93fce8542c049906567d34d310584d9ca1808234e002b

SHA512
88d7307307e199d534f2eb3ab1a453381edfea11cd251cd1afdce1f24052d28cc2fa2a23e7f0d5c1ca5e8a10c76a2252826347cf6c5d4a5e758b730800425f97

Download Submit
memory/2200-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2200-2-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3056-18-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download