c464da8ec506468d21acea9c3e96ae8e6e5f1df9a00233319c692ca153d9daf0

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 00:49

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General

Target

2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe
Size

63KB
MD5

f5bed92f4292d792c3ad36265158c7e2
SHA1

b2301ade35f0d38f398b72f0b0dacb37f9587a2d
SHA256

c464da8ec506468d21acea9c3e96ae8e6e5f1df9a00233319c692ca153d9daf0
SHA512

7ae9f8356d5240f1b2f3e70fab60ef6ef876101066cd63fd9ad557dcf5695c3d75b7dc0b653db093d1d63783fbc0bd6d7d61f7c57a7bb5825f3b3734dd1b13d8
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF299847:aq7tdgI2MyzNORQtOflIwoHNV2XBFV73

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2980	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_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
1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe
2980	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2980	1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe	28
PID 1732 wrote to memory of 2980	1732	2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_f5bed92f4292d792c3ad36265158c7e2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1732
- 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:2980

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
870b23112771a420943a195c7357ebb9

SHA1
fe66e1fdca5c6dc48b71755c936705fff434e363

SHA256
6cbf0f9731859daf584aafd21779f2e34e6ae71c99a5698f359faea287af06f3

SHA512
2171ad8b0d36be48843862c160d0400f4234036e62f9825dd94413dccc93393cfcef10d393c1e5cbf1fc85b8b3402c1a58a0ed44089e17baa1fd6cc09ae5aacf

Download Submit
memory/1732-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1732-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1732-3-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download