e299a7c9b737311ab10148b46f15d5d8654d0c9cd7fed22521e01eea857682ca

Analysis

max time kernel
152s
max time network
161s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 16:52

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General

Target

2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe
Size

68KB
MD5

ed5ff5855a2b40f9cc5b9e1081fa5469
SHA1

38b1a6c983539c62f1e1e7c650a9c9f84528e991
SHA256

e299a7c9b737311ab10148b46f15d5d8654d0c9cd7fed22521e01eea857682ca
SHA512

a1852d63380bad7f55d8c8d0bfe80b40b1f01ad5a5c847ffa7ec46cb09f32c069b162b55d0da6a33393934f6dba2f9fc63fbdb19cfd04ab680220538d1d2589a
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUI:DW60sllyWOtEvwDpjwF85C

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012185-11.dat	CryptoLocker_rule2
behavioral1/memory/2716-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2088-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012185-11.dat	CryptoLocker_set1
behavioral1/memory/2716-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2088-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2088	2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_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 2088 wrote to memory of 2716	2088	2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe	28
PID 2088 wrote to memory of 2716	2088	2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe	28
PID 2088 wrote to memory of 2716	2088	2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe	28
PID 2088 wrote to memory of 2716	2088	2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_ed5ff5855a2b40f9cc5b9e1081fa5469_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2088
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2716

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\asih.exe

Filesize
68KB

MD5
d1fe6c276143f03ee52ccb59dd5352a1

SHA1
f14812cfe0f896c5e031e298150a1458e9d8391d

SHA256
b9007cd907f8e6c34e6d90d447faa87d15e20d9e6b8031955056b545cb452c9e

SHA512
1ea0a1dfaaae77e6f0285e81b54649b82de32083e48450830861b8a6fb977fb028d8249aeb747b71d2eaf2449867920aba1bacf6ebd68d75182794d99f101ab4

Download Submit
memory/2088-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2088-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2088-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2088-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2088-14-0x00000000026C0000-0x00000000026CB000-memory.dmp

Filesize
44KB

Download
memory/2088-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2716-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2716-22-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2716-19-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download