ebc023173012bcee470b751117439523cbbdb1a4f789121696a62c4d2d6876b3

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/05/2024, 06:37

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General

Target

2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe
Size

64KB
MD5

6e3eb8f2b16c65c967255edded769117
SHA1

691941fcb45202a9753180fcd06a0ca3491921f4
SHA256

ebc023173012bcee470b751117439523cbbdb1a4f789121696a62c4d2d6876b3
SHA512

cd7cb92b487f976bd6bcb2ca02841ca303ab1f4f4fb4f132e43ac012bc5941c775c07b5e55f53ef7bfaf7ddd903fa47add601c925ca9550801a9669a5effc633
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293Wo:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7H

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016c90-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016c90-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2812	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_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
1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe
2812	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 2812	1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe	28
PID 1556 wrote to memory of 2812	1556	2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-29_6e3eb8f2b16c65c967255edded769117_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1556
- 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:2812

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
787fc8736a939cc3802f6d136f73743d

SHA1
2397aa258a723ecfe6bae15905e05fa4777e41a5

SHA256
dcc1d25ae39cfc9f798b4a1ec94a2aabbd14bd18a5d09849f85e35ad478d7051

SHA512
18fddd860ecdd831b745a673dd6e7a61331c3548a66074a84e2d59d45c7dd87c202305cd0dc99a37706975d5f16fce50c7de79043ae60bf2a724669ac13bedad

Download Submit
memory/1556-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1556-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/1556-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2812-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download