d4ccd5be679e8a8a5ec0ecf1e2ce00b8f8255274da800feb269718aabce43b9f

Analysis

max time kernel
133s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 23:26

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General

Target

2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe
Size

62KB
MD5

b60f05f32a5d068995207b4b713277b1
SHA1

16344bbee4d4c0e29588245d0a023da3840ccc64
SHA256

d4ccd5be679e8a8a5ec0ecf1e2ce00b8f8255274da800feb269718aabce43b9f
SHA512

65de18c6356c43958caa1f697d0c1f57406dd3a3fc965b37925763840971786e653e522b3d5a03fab251c17448bb7245179f50ef16741ebc8fdc28f8ec2344f5
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9J:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWBC

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2800-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral2/memory/2800-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1500-48-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2800-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
C:\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral2/memory/2800-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1500-48-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exemisid.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

1500 misid.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1500	misid.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe

description	pid	process	target process
PID 2800 wrote to memory of 1500	2800	2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe	misid.exe
PID 2800 wrote to memory of 1500	2800	2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe	misid.exe
PID 2800 wrote to memory of 1500	2800	2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_b60f05f32a5d068995207b4b713277b1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2800

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Checks computer location settings
- Executes dropped EXE
PID:1500

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=1280,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4412 /prefetch:8
1⤵
PID:4480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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
62KB

MD5
2b626ec198a38b509852c1ae7f776037

SHA1
645a11aec3d37157fb7f65ccb1100e270bcc1a10

SHA256
0bda992b38185a66840ddda6e0fba58ff87d1cd9a4d444b8c0e6379359462e1a

SHA512
0bb1ee150359d60d2be5db50c54855e405d4db0735dbf0bf2cfc63e6ce7c0c31bb375b8db304ffc6da2f227263857bc88ccf3c2eb6510e404aa1f4648f473c63

Download Submit
C:\Users\Admin\AppData\Local\Temp\misids.exe

Filesize
315B

MD5
a34ac19f4afae63adc5d2f7bc970c07f

SHA1
a82190fc530c265aa40a045c21770d967f4767b8

SHA256
d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

SHA512
42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

Download Submit
memory/1500-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1500-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1500-48-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2800-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2800-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2800-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/2800-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2800-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download