6b1970ca7513bc93c8fafa8603632ad403ece265e90ad12856e094b09bdf2dad

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 21:13

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General

Target

2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe
Size

96KB
MD5

b0626dcb8555133b8b707540803890ce
SHA1

ec7a956dfe6687ebfe5ef4cd973277f49f4b662d
SHA256

6b1970ca7513bc93c8fafa8603632ad403ece265e90ad12856e094b09bdf2dad
SHA512

3788c99c4e102c298cfb7f91dbeacf9a36493c956eae0f29036e0fa2b2fca1eb9dc4ed324d088ae0814d53e38a0993f4abd5cc10acbfa0ee5a1cbacada99d47f
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJY/:xj+VGMOtEvwDpjubwQEIiVmks/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0009000000023304-13.dat	CryptoLocker_rule2
behavioral2/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/2364-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0009000000023304-13.dat	CryptoLocker_set1
behavioral2/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/2364-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0009000000023304-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2364-27-0x0000000000500000-0x0000000000510000-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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2364	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 1056 wrote to memory of 2364	1056	2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe	92
PID 1056 wrote to memory of 2364	1056	2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe	92
PID 1056 wrote to memory of 2364	1056	2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe	92

C:\Users\Admin\AppData\Local\Temp\2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_b0626dcb8555133b8b707540803890ce_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2364

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3672,i,1067197275908310731,12785105794523264014,262144 --variations-seed-version --mojo-platform-channel-handle=3648 /prefetch:8
1⤵
PID:3152

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
9c643c6181364165e8b5ebe2db7a7816

SHA1
de0e2cd6f988c793c739d72290513a0b30f5d9b6

SHA256
e1a4ee1d3005f8f171c076cdae2604a0b672d1ab6613b217f22d12e80eef8e82

SHA512
d615e8d8e7b133614eea934e1543759575fb12410b9f9e39896ff8886f87c9f9bc459f99b4dc5e734baf4d5189a00d979cc5cae4a3ea574852ba393e18fc5706

Download Submit
memory/1056-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1056-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1056-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1056-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1056-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2364-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2364-20-0x0000000000680000-0x0000000000686000-memory.dmp

Filesize
24KB

Download
memory/2364-26-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2364-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download