7be5923f3f97fe5ad8fcb28398013b1c9f6baf1fae1ce36431d9a6abd186a699

Analysis

max time kernel
147s
max time network
155s
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 06:32

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General

Target

2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe
Size

40KB
MD5

7db6a51445c2c559a94d68d1fb931b77
SHA1

0a18a232ff257301a8155e39e42fe9f9ce83cd8f
SHA256

7be5923f3f97fe5ad8fcb28398013b1c9f6baf1fae1ce36431d9a6abd186a699
SHA512

443e183e33d0bafb286fe83749dc033ca851325d0591c5c3bedb7b7c4474499a37ff78fa02d286ec97b5dd2a9146ee65098051ea99fd5d4df8731aa65472c47d
SSDEEP

768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnISct3:m5nkFNMOtEvwDpjG8hgpu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/1132-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1132-1-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000800000002322f-14.dat	CryptoLocker_rule2
behavioral2/memory/1132-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4548-28-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/1132-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4548-28-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/1132-0-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1132-1-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000800000002322f-14.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1132-15-0x0000000000500000-0x000000000050E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4548-28-0x0000000000500000-0x000000000050E000-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	2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4548	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 1132 wrote to memory of 4548	1132	2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe	99
PID 1132 wrote to memory of 4548	1132	2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe	99
PID 1132 wrote to memory of 4548	1132	2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe	99

C:\Users\Admin\AppData\Local\Temp\2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_7db6a51445c2c559a94d68d1fb931b77_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1132
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:4548

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=3096 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:2116

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
41KB

MD5
e1dd77a91661850ef709613edd13a07a

SHA1
adfb8ef4b773bab94cbb18b7a404a9a912a01074

SHA256
5569189c128b0e83a01997082e00699c01d34c9c32e239ba54aa488e3ed0cb50

SHA512
207b89ed8991fc963468673cd031ddf88429a3a5a75d242e38bf46f8040c15900693fda9c80f2900fd95f397b745ed36266bfc235d369194c8a494306f821afe

Download Submit
memory/1132-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1132-1-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1132-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1132-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1132-4-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/1132-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/4548-21-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/4548-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/4548-28-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download