84e6ebfebafbd17d831841217c08c2372fc6848032f47192f64d80520de9c547

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 05:29

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General

Target

2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe
Size

62KB
MD5

9d6e5ea45495104b4b3ed72cb7387fa1
SHA1

fcbc53a930dc2410e62997504cd788489d4bedaa
SHA256

84e6ebfebafbd17d831841217c08c2372fc6848032f47192f64d80520de9c547
SHA512

71a5ebe2e99635d851207c5e81fa236bd4fe9562ce7a50ec7ca0a2a7648e7807e8547e4649ab1a3682b102a8100984460eabdc331080719c7ae898fa52a2a63a
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293v+:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7o

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001225a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2276	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_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
2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe
2276	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2276	2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe	28
PID 2880 wrote to memory of 2276	2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe	28
PID 2880 wrote to memory of 2276	2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe	28
PID 2880 wrote to memory of 2276	2880	2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_9d6e5ea45495104b4b3ed72cb7387fa1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2880
- 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:2276

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
12255310668b249f6678914faefe34a3

SHA1
15bc88c58cf9f8542f869885a0aa9906d98476e0

SHA256
50f9455a2f9699d5d0797c238da35a1125db145a1037e156c03565bc73fd9d8a

SHA512
ebbaa532771afde68e4da808c69cbaeae4dc948a4a05cf5a56bd1de6fc231697b785738fd1c1aeeebf425f9c2f34b2d64cf95b16c5a3a1827c129e907e2e8083

Download Submit
memory/2276-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2880-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2880-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2880-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download