f95968890984e61dd7815c0c5861480f5133a652b029018ab578995f1af1cec6

Analysis

max time kernel
145s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 20:02

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General

Target

2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe
Size

74KB
MD5

edcb08067a8bfe613f6aa991c3aa8ca1
SHA1

363276ed6d07014a275acb500900108a34ba7dc6
SHA256

f95968890984e61dd7815c0c5861480f5133a652b029018ab578995f1af1cec6
SHA512

60b3be7a918d0b8e1a2a1d38fa466379b954770f376989efba395f995399215aee96ad6b56e5a010cc16c082467614bd366bdc2298b0c163d7b7661b8cd23e5f
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUP/:xj+VGMOtEvwDpjubwQEI8UP/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/768-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0005000000022d26-13.dat	CryptoLocker_rule2
behavioral2/memory/768-21-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4512-58-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral2/memory/768-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0005000000022d26-13.dat	CryptoLocker_set1
behavioral2/memory/768-21-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4512-58-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral2/memory/768-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0005000000022d26-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/768-21-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4512-58-0x0000000000500000-0x0000000000510000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
4512	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 768 wrote to memory of 4512	768	2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe	98
PID 768 wrote to memory of 4512	768	2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe	98
PID 768 wrote to memory of 4512	768	2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe	98

C:\Users\Admin\AppData\Local\Temp\2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_edcb08067a8bfe613f6aa991c3aa8ca1_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:768
- 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:4512

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=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
1⤵
PID:4892

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
74KB

MD5
a6f9c9f623f6e27c26e8f5009942516f

SHA1
ef83068cb412d09b74a8d4767d52af4ad85e3567

SHA256
429e370d89eead43ef9d2f53c694fb418cbbeff8c68b884a042eead75340ef24

SHA512
dc4f9f5c6f490747a7292c8ed0d93b685d0e076eb0f7227e46c64d9fcba509949399e65c04f48d6a360b84302dc584574f9cdd85131bf29d0f6244f0ff2ee033

Download Submit
memory/768-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/768-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/768-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/768-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/768-21-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4512-18-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/4512-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4512-58-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download