d69ef3976ffb9c91682db4d16cd72a757560a2146a66b69d49f24e97911e38e3

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
27-04-2024 22:29

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General

Target

2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe
Size

60KB
MD5

4cdf795766bd66aa3a878a724846d7c1
SHA1

4eb04e9c5e2e22241370fb698f29db7ce693daf3
SHA256

d69ef3976ffb9c91682db4d16cd72a757560a2146a66b69d49f24e97911e38e3
SHA512

bd01d46098d2dcf85da490a54d0000142cb2a05a79f63b627662d85d304e8df01a1fd284bfb11cb6b0ef0da2e63084f5c54748d236d15d3b0a30f87a40436ca6
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG94:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2896-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2896-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3024-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2896-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2896-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3024-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

3024 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe

pid process

2896 2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3024	misid.exe

pid	process
2896	2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe

description	pid	process	target process
PID 2896 wrote to memory of 3024	2896	2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe	misid.exe
PID 2896 wrote to memory of 3024	2896	2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe	misid.exe
PID 2896 wrote to memory of 3024	2896	2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe	misid.exe
PID 2896 wrote to memory of 3024	2896	2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_4cdf795766bd66aa3a878a724846d7c1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2896

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:3024

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\misid.exe
Filesize
61KB

MD5
ad437654c529ca75aed4a689cd15b67f

SHA1
1bb1889ed9de43b8cbd0ebcdf1e333df51a13d0a

SHA256
1a5da90952ea225c0463325cbd29d1f5472706a39a29f08ef47adbbc1a51c9c9

SHA512
3462b759e1d385c427be04f4e13f96e62eca366968b67dbca5cec24dbb76644a0fb0da4e80046ad6695aba1fd80c38ac685c82ebca4ff90dee8c36d2ccfff840

Download Submit
memory/2896-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2896-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2896-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2896-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2896-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3024-17-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/3024-24-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3024-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download