6df4f7a1d8aacd8ada83b9195d0c8e147d15fb2b2b8628321dc7dc2985081264

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16/04/2024, 00:48

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General

Target

2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe
Size

49KB
MD5

ee014c3b6bcb43e666f5629776b06dcc
SHA1

10eabbfc3ca9f44bfc5cdf6b3e15d5c57937f0b4
SHA256

6df4f7a1d8aacd8ada83b9195d0c8e147d15fb2b2b8628321dc7dc2985081264
SHA512

458f546feaff57be410242a0b8f4b2ac863da4fb01c64f0b3037c2e3cdc3f024e5b139ff269769e8ce6cdce7e99a57ee6637be029a2d87705f567c104df52903
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLtldedHE:xj+VGMOtEvwDpjk/eVE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/3812-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x001000000002324d-13.dat	CryptoLocker_rule2
behavioral2/memory/3812-23-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4596-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/3812-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x001000000002324d-13.dat	CryptoLocker_set1
behavioral2/memory/3812-23-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4596-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/3812-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001000000002324d-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3812-23-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4596-26-0x0000000000500000-0x0000000000510000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4596	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 3812 wrote to memory of 4596	3812	2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe	91
PID 3812 wrote to memory of 4596	3812	2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe	91
PID 3812 wrote to memory of 4596	3812	2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe	91

C:\Users\Admin\AppData\Local\Temp\2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_ee014c3b6bcb43e666f5629776b06dcc_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4596

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 --mojo-platform-channel-handle=3992 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:5528

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
49KB

MD5
6a30a50f0a6529a0151bc0e23f01394e

SHA1
4fc6ea9b5f147145c4945f504823168f46c2ab25

SHA256
5b0fcbd6ba77daa326a29ee00b894ca26efdbe60bca33d1f08a268cafef052ef

SHA512
a55c91ba22038bed868b1a58461332eb7a863f50f9f075764457856b2294d729ea1e3f68bd82c0e9c8ae49634f3bc48516e55c9c676baddf6fa3a5f91d57cce3

Download Submit
memory/3812-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3812-1-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/3812-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/3812-3-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/3812-23-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4596-18-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4596-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4596-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download