666bf533296a8c762e0b57cc7dee678170b0d6b23a3445c2f375d1615a8f92cf

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 21:35

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General

Target

2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe
Size

81KB
MD5

b7b8da06c145737a3ba81d9eb6ed12ac
SHA1

5f6dfdeb7755e17fc9f65230d708748be47a9fd7
SHA256

666bf533296a8c762e0b57cc7dee678170b0d6b23a3445c2f375d1615a8f92cf
SHA512

95d5f0d6252aeef7fbb3266d9b7470083001cb208ca8a29949955c47fc95d9f2cf3096c98174f65a6b27f8378bd20270857be3433bd2f9611bfdfe56ec29e9b1
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMAe1:TCjsIOtEvwDpj5HE/OUHnSMz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012331-24.dat	CryptoLocker_rule2
behavioral1/memory/2112-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012331-24.dat	CryptoLocker_set1
behavioral1/memory/2112-25-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2112	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 2112	2360	2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe	28
PID 2360 wrote to memory of 2112	2360	2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe	28
PID 2360 wrote to memory of 2112	2360	2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe	28
PID 2360 wrote to memory of 2112	2360	2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-11_b7b8da06c145737a3ba81d9eb6ed12ac_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2112

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\misid.exe

Filesize
81KB

MD5
6df58d97a788cefbef9ec21ecd4f3b26

SHA1
e1f3408ce17bcd195d151e273ed0dab604a8bc5d

SHA256
c12464db0d0d66a76f7d529b6095c738817f1a68523165d1b5cd4434e3804d9e

SHA512
c559cca297ddced0921495ec3ec0827a1a8079b1c2eef14ebb73ded42c29443fddaaba3776c940ee92d56ad24f0fefc04d36900f9fff5ee5810bb36c706718dd

Download Submit
memory/2112-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2112-23-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2112-25-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2360-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2360-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2360-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2360-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2360-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download