ee72f0c3d74cf3c0f893ddb493d38680adb54924063597103865a94e085e77c4

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 04:36

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General

Target

2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe
Size

386KB
MD5

59d73e992f22713713e3c14f882cf058
SHA1

c39d8f1af4a71a8d6f79eb0ef143bfe3769f4ce0
SHA256

ee72f0c3d74cf3c0f893ddb493d38680adb54924063597103865a94e085e77c4
SHA512

a542492b6478f1ae906dc6307da2dd8a728cefd25477da9d97092290feb239211ab1c1313e8af9cd013a9719da2737484d6df076d5cd1586fbec260cec8af0f4
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXE:nnOflT/ZFIjBz3xjTxynGUOUhXE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e00000002313e-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1764	hasfj.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1764	2312	2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe	88
PID 2312 wrote to memory of 1764	2312	2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe	88
PID 2312 wrote to memory of 1764	2312	2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_59d73e992f22713713e3c14f882cf058_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1764

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\hasfj.exe

Filesize
386KB

MD5
d9357f1063633e18b20a00b2bfe5fd48

SHA1
15bfec994b4421dd6f390080090ef41b28f50bbe

SHA256
b45eaa2307d7d68411084a1b56378ad906e09add218a016db7e4914608da52e4

SHA512
d4e938410855afb0c54727cfbfd147f75a5f664ac3d03cf9c132534059f29e03ffdaa0bbffb5cf4796a0ae57079dd297e23d65ceb0d6e1592cae5304f57034b4

Download Submit
memory/1764-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/1764-19-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/2312-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2312-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/2312-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download