d364fef53f4220a8aa9bedca691d722c1d5cf96a5d462c52a64c1c90661deded

Analysis

max time kernel
149s
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
13/03/2024, 02:29

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General

Target

2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe
Size

41KB
MD5

441121d74d9a56e1f7f6b6678e35edfc
SHA1

6d1dc03a924656194b19dd27b1004ac73441434e
SHA256

d364fef53f4220a8aa9bedca691d722c1d5cf96a5d462c52a64c1c90661deded
SHA512

5877da831df19b82042e22cbaa6993c440e53ee9180ae5efdba2c5aa8f8fde2fe612ade54418a9e20d0ea7c71406e7c16f08b1820ef37ec2d516e32099808587
SSDEEP

384:60VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26aIIcVRYpetOOtEvwDpjqIGRmdHzOOC:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/532-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000300000001e9a0-13.dat	CryptoLocker_rule2
behavioral2/memory/532-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4004-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4004-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/532-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x000300000001e9a0-13.dat	CryptoLocker_set1
behavioral2/memory/532-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4004-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4004-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/532-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000300000001e9a0-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/532-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4004-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4004-27-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

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	2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4004	misid.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 532 wrote to memory of 4004	532	2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe	89
PID 532 wrote to memory of 4004	532	2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe	89
PID 532 wrote to memory of 4004	532	2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_441121d74d9a56e1f7f6b6678e35edfc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:532
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4004

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
41KB

MD5
6b227ec669b5d78c2cbc8217da42cb17

SHA1
d8ab7e3730f26134a68189524e4a90f953b2cac5

SHA256
610742dca8b704af38afa34dced77aca4cc1f6541311bef1fd9c20f7c368c976

SHA512
63e87a2bd19cc334fac44fbf81a8bb232fa769bd5fdeb1ceb17a706a641c0a8fd1bc502cb0bb8d6aac13a053d6bac2a5d9fcae6b8ef920b642a73005d1f79dd4

Download Submit
memory/532-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/532-1-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/532-2-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/532-3-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/532-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4004-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/4004-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/4004-24-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4004-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download