1533dfa0d24e787514ec0e6b10e7c0cca52e3273b4a8ad3f9dc5f96d9114547a

Analysis

max time kernel
160s
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
06-03-2024 06:22

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General

Target

2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe
Size

77KB
MD5

a944e9416ff0540a69924bba77f3e795
SHA1

1fd0cf76de117df222e67d075b690f98b4b2ded0
SHA256

1533dfa0d24e787514ec0e6b10e7c0cca52e3273b4a8ad3f9dc5f96d9114547a
SHA512

e64d7635b295594b6314f43b3621bd5b93bd25161b8691fde75e89ec8e1946c510f2bca3ec916f8f0a3d9f5fa52d73a61e4ec86249d49b6efc47a0e92a08cfb5
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTmG:ZVxkGOtEvwDpjcaxA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023330-13.dat	CryptoLocker_rule2

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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1128	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 2428 wrote to memory of 1128	2428	2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe	97
PID 2428 wrote to memory of 1128	2428	2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe	97
PID 2428 wrote to memory of 1128	2428	2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe	97

C:\Users\Admin\AppData\Local\Temp\2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_a944e9416ff0540a69924bba77f3e795_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2428
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1128

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=3848 --field-trial-handle=2256,i,6057863739127169200,6895476048812676039,262144 --variations-seed-version /prefetch:8
1⤵
PID:3120

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
77KB

MD5
f976fdfedc134ca08b33f3344487dd9c

SHA1
f116cd85bae4eef2c9cb783073585d2a97e4d7e0

SHA256
6005425a617bf72c2ab99076d5014ee17ea5d8d6650516a1b831eaf335711870

SHA512
90abba9fb51fe238570c7b634ee0912e682a2638d849377bea679e60f4d00f8ce6b7b32e5771f5697df06c2cbaed108acb15c7c6e9b8a808393c416392731019

Download Submit
memory/1128-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/1128-19-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/1128-25-0x00000000007B0000-0x00000000007B6000-memory.dmp

Filesize
24KB

Download
memory/2428-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/2428-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2428-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download
memory/2428-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/2428-26-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download