2260ae4988daad90fab7f3e0adf6fb62180824890d9f15cac38ec38e1024fe0f

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2024, 14:42

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General

Target

2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe
Size

63KB
MD5

aae2f4ce49b5ed63138ec22c22243526
SHA1

65226f0904bb0af78078c2d113320b18ede3c2c4
SHA256

2260ae4988daad90fab7f3e0adf6fb62180824890d9f15cac38ec38e1024fe0f
SHA512

a887d17f0d3ca559ab95c0f16f6ab62594c9f7d7ab1f7b11ee43bf14da96050cd89ab5d3b8a3c34c145f3c829171877165af06e3128fbaf73d114225d1aaa64d
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEKIy:6j+1NMOtEvwDpjr8ox8UDEKB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2148-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x001b00000002251f-13.dat	CryptoLocker_rule2
behavioral2/memory/1960-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2148-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1960-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2148-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x001b00000002251f-13.dat	CryptoLocker_set1
behavioral2/memory/1960-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2148-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1960-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/2148-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001b00000002251f-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1960-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2148-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1960-27-0x0000000000500000-0x000000000050F000-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-1-5-21-1790404759-2178872477-2616469472-1000\Control Panel\International\Geo\Nation	2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1960	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 2148 wrote to memory of 1960	2148	2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe	89
PID 2148 wrote to memory of 1960	2148	2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe	89
PID 2148 wrote to memory of 1960	2148	2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_aae2f4ce49b5ed63138ec22c22243526_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1960

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
63KB

MD5
4d3e3effb860f0e781d0bb570e3e6163

SHA1
8b91a1ed0c9a9d10ea020998fcee0d0ea4dfdfae

SHA256
1825381c5001f2169484f501e8e5919c9a4bc857bbfb7e33881c5a2ed37b812f

SHA512
1581918f3731dafbd86a6547542d9779e35b5c6c1f6ae078a1f1e17b3329c9a8aee1f7c1ccebcf38e43d22c5310df0498c30fa4b969a286adb43fd335f748dd7

Download Submit
memory/1960-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1960-20-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/1960-22-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/1960-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2148-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2148-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2148-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2148-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2148-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download