7e66758e6793ade7b1225eef814347c97b07a3007ffaae4ad98ec8e5e44c7839

Analysis

max time kernel
153s
max time network
168s
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, 20:47

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General

Target

2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe
Size

42KB
MD5

db252a3273c6795016a5ca48af0173b6
SHA1

fd67198dce0bec0ae73f47dc8a0e05c9a587a2ed
SHA256

7e66758e6793ade7b1225eef814347c97b07a3007ffaae4ad98ec8e5e44c7839
SHA512

6273ebd48424f71ecbbbcb3e12b9f6fd31ad1f6435d6ebeaf4dbda0505882364ebd7330ab12aad5cbd73aa3ebbfd3b1ec4975c1425a4a290d5852f46e5209fed
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMWKajni:6j+1NMOtEvwDpjrobi

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x00030000000227e7-13.dat	CryptoLocker_rule2
behavioral2/memory/2908-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3792-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/3792-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x00030000000227e7-13.dat	CryptoLocker_set1
behavioral2/memory/2908-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3792-18-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral2/memory/3792-27-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x00030000000227e7-13.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2908-14-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3792-18-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3792-27-0x0000000000500000-0x000000000050F000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3792	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 2908 wrote to memory of 3792	2908	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	99
PID 2908 wrote to memory of 3792	2908	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	99
PID 2908 wrote to memory of 3792	2908	2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe	99

C:\Users\Admin\AppData\Local\Temp\2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_db252a3273c6795016a5ca48af0173b6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3792

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=2180 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:3132

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
42KB

MD5
612b59cf6f2f3cd5e8bc64c750645685

SHA1
d055c3fbbdd2d4a7e254dc855370f4999befe95b

SHA256
f385fcaa6690556d3cb2fc239ca80635eccf8f12a295e83947e9bf8d2f3755ef

SHA512
0a37a10e707453b67fefda22c2c0faa955306881031170d6e21acee0cd925f3ba54a0fb9da4e81c857c34ac41bb2b1d661a5521579c63550a717918eb2c5741c

Download Submit
memory/2908-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2908-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2908-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2908-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2908-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3792-18-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3792-20-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/3792-21-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3792-27-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download