1fe8745e4faedfd8b0b0fd33183ab826c0ff94b2b44e937f3c2d883fb39bb028

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:27

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General

Target

2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe
Size

50KB
MD5

450601f8359a2cee2c55c38f7cc23e7f
SHA1

96a0fbacdc1c2a8220340093fd71609ae8697e97
SHA256

1fe8745e4faedfd8b0b0fd33183ab826c0ff94b2b44e937f3c2d883fb39bb028
SHA512

61c2ffea1870c23b46a6018659dac943912327ae0460abe833e84389abb75f72d22fce54d5ea5fe917554cb3b532b70b96b758921e4e80c96da83fac6e164623
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIR2:79mqyNhQMOtEvwDpjBxe8TpXR2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2248-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000012251-11.dat	CryptoLocker_rule2
behavioral1/memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2264-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2248-13-0x00000000006E0000-0x00000000006EF000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2248-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000012251-11.dat	CryptoLocker_set1
behavioral1/memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2264-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2248-13-0x00000000006E0000-0x00000000006EF000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2264	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2248	2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_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 2248 wrote to memory of 2264	2248	2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe	28
PID 2248 wrote to memory of 2264	2248	2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe	28
PID 2248 wrote to memory of 2264	2248	2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe	28
PID 2248 wrote to memory of 2264	2248	2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_450601f8359a2cee2c55c38f7cc23e7f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2264

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
50KB

MD5
29dcf866afe93b618a26c5143727afc2

SHA1
f7f0aa1fcc01cf33438c617a40bf7dbd35579577

SHA256
c19b3de2accfdce33ac5ffbfca39cd49239db9b80485895c26b89b32436eea5b

SHA512
7de6106929826ec4541df5e4df422b935481af564394847b374b351abe26f7acd79edad962bb7038156beef1be0a6e20d45c08ef013ca9545767eca97c599fe3

Download Submit
memory/2248-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2248-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2248-3-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2248-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2248-13-0x00000000006E0000-0x00000000006EF000-memory.dmp

Filesize
60KB

Download
memory/2264-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2264-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download