885588f17ed2e65b5341f1195aee845fe50d9a3c0a860bcce2ad3a25d8883012

Analysis

max time kernel
148s
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
06/03/2024, 09:37

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General

Target

2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe
Size

86KB
MD5

d3090914334f1260b770cfc88f900c40
SHA1

be8463c34e63b1667b83fdb2669e548404f4baa4
SHA256

885588f17ed2e65b5341f1195aee845fe50d9a3c0a860bcce2ad3a25d8883012
SHA512

6ebbb91c33de66238167c97d7b5303219b5fd38243be75d732d3c77661041efcb5637f79a232902d0feda3478450e32de1d1c926b5d0bd47c87431febe59e51a
SSDEEP

768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvxgnx:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8yx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2712-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000300000001e9a0-13.dat	CryptoLocker_rule2
behavioral2/memory/2712-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3204-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3204-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral2/memory/2712-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3204-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3204-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/2712-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000300000001e9a0-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2712-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3204-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3204-27-0x0000000000500000-0x000000000050F000-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	2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3204	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 2712 wrote to memory of 3204	2712	2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe	89
PID 2712 wrote to memory of 3204	2712	2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe	89
PID 2712 wrote to memory of 3204	2712	2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_d3090914334f1260b770cfc88f900c40_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3204

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
86KB

MD5
f62a2ebfc3b5faff7f98a3241d29f177

SHA1
e88ae2ddb712c0eb47306987b116ca5e1ffb2044

SHA256
f69a06de5fa068b8d83bb2705400669e0114466fadc0d498da0436704c93d56a

SHA512
dea3c0b7301cc130cc61e1c8524d0db614535d23a51c9209f66cf859041db1446eb953c288092640bbc300a18a98ea6dc8984d0c682506d8e71c77179b755b76

Download Submit
memory/2712-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2712-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2712-2-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2712-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/2712-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3204-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3204-20-0x0000000000770000-0x0000000000776000-memory.dmp

Filesize
24KB

Download
memory/3204-23-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3204-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download