c81ba81ce296ad9feb3cc262bb07cb2e8c04193a7f6e3b14bbe86c3320c5f7f5

Analysis

max time kernel
90s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/02/2024, 09:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe
Size

64KB
MD5

6a641730db4bd027000f036d94f4d4be
SHA1

2e62e974f35361bc620cec647cdc042906f3c6b8
SHA256

c81ba81ce296ad9feb3cc262bb07cb2e8c04193a7f6e3b14bbe86c3320c5f7f5
SHA512

b8f0e04adc17bbceec238669ba6116f5647cb876c18c0a373a1354dee7d64db7a378421c72b298d7eb3fd25717ac02d2812e48fc9d30ba5d45b5786df869f627
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVR:ZVxkGOtEvwDpjcawr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023202-13.dat	CryptoLocker_rule2

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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	misid.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1888	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 2444 wrote to memory of 1888	2444	2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe	86
PID 2444 wrote to memory of 1888	2444	2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe	86
PID 2444 wrote to memory of 1888	2444	2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_6a641730db4bd027000f036d94f4d4be_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2444
- 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:1888

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
64KB

MD5
b3b4a5011a94a78772288f1a393b4188

SHA1
646f216962e277fffde48e79cb53a2ed721fd176

SHA256
7e070402f0da33e919077213316c47cbd56cee99cab5b4c7be70f91ab348ab27

SHA512
32a14a035c490f1376ab9cbf9b0eaad87f4912dcc93e80a48034f213566fbaffd056cdc3897f4a9b22eb191e9f7fb2fea4a484dededaaaa91df17a1d2aa34452

Download Submit
memory/1888-19-0x0000000002100000-0x0000000002106000-memory.dmp

Filesize
24KB

Download
memory/1888-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/2444-0-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download
memory/2444-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2444-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2444-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2444-17-0x00000000004A0000-0x00000000004A3000-memory.dmp

Filesize
12KB

Download