709ca69b15a08a760507d9b4cee8a8a2855ca8178b59edd5aa1c6b181fcd5066

Analysis

max time kernel
89s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 13:56

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General

Target

2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe
Size

95KB
MD5

cccdad4ecf6a3b19fcdb1f036bb85730
SHA1

4f9acfae34cb0724ad328ca49679c05cf6c4bd87
SHA256

709ca69b15a08a760507d9b4cee8a8a2855ca8178b59edd5aa1c6b181fcd5066
SHA512

80f06d8c800858bf436656c234e09b32c7117967fd52dbe10db0a8fd556166df20d2682fe35baf6adfe3d2db9944279671a1277c17ef29dfaff3b0e2850255e8
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJvfT3pjX:xj+VGMOtEvwDpjubwQEIiVmkfdX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00070000000231e9-13.dat	CryptoLocker_rule2
behavioral2/memory/3532-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1012-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1012-55-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00070000000231e9-13.dat	CryptoLocker_set1
behavioral2/memory/3532-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1012-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1012-55-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00070000000231e9-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3532-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1012-18-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1012-55-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1012	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 3532 wrote to memory of 1012	3532	2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe	84
PID 3532 wrote to memory of 1012	3532	2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe	84
PID 3532 wrote to memory of 1012	3532	2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_cccdad4ecf6a3b19fcdb1f036bb85730_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3532
- 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:1012

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
96KB

MD5
5c1b404a198babf387e9a24bc5e32368

SHA1
5abc22e0290d1e68a8b9b3fe3453a9b0e330fc71

SHA256
73954fe4fa1bb0c3035f35e6efae5af7c84d09a174da3fd527e44bd90c37b12c

SHA512
07c82afff89f869bd3b518c7a2c7691518e12ec40fcdaee49d1506e3a7a294649918fc31eb1de0cc3b61aaf189211abf03cc4c3e59b54a994f26b4b8a918a32e

Download Submit
memory/1012-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1012-20-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/1012-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1012-55-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3532-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3532-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3532-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3532-3-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/3532-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download