154c77968a6c9793fe5e6d54d68b745f953fd352a701f652dec49f5051397a09

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:48

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General

Target

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
Size

65KB
MD5

bb0ad7ca3c028c70f9637c5516a9f367
SHA1

1e5a9a7e2deafb41b53a4ac97742c5d5010f9f52
SHA256

154c77968a6c9793fe5e6d54d68b745f953fd352a701f652dec49f5051397a09
SHA512

588eaa56fe42d0bb125e04271df73759b73193f183774eba29c6625313f8cac8860da8974236fabfaeba35463ffb4a040d23cb1cbca17d1371f3c9dc6fcd9024
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299NQ:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7e

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\hurok.exe	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

hurok.exe

pid process

3040 hurok.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe

pid process

1616 2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_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

Processes:

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exehurok.exe

pid process

1616 2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
3040 hurok.exe

pid	process
3040	hurok.exe

pid	process
1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe

pid	process
1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
3040	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe

description	pid	process	target process
PID 1616 wrote to memory of 3040	1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe
PID 1616 wrote to memory of 3040	1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe
PID 1616 wrote to memory of 3040	1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe
PID 1616 wrote to memory of 3040	1616	2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe	hurok.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_bb0ad7ca3c028c70f9637c5516a9f367_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1616

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:3040

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
65KB

MD5
90cb9ef69615f34ef816a50440c6c5b5

SHA1
8275a73a62e9019e4e7c31d906a59044f48a48e3

SHA256
c69aa588b8417527ccb9a9b39f5247a119b7602b1464658fb9bb5f378dd74d1f

SHA512
2a54e7c03a603f15b53e327cdbc12720b5ce6c85dba00fc5dec24c515957eb10276216fe8e4085f3968ba937b845498fd463036a06f0382ab03f9c1d434a4fb4

Download Submit
memory/1616-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1616-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1616-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3040-23-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download