4246b22255d23af9a5366655f3ae93a21df0a9298153bc5035e5eaea2db1c9da

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 02:26

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General

Target

2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe
Size

46KB
MD5

10badfad7622e391c1fafea27db4adc5
SHA1

0d7b54404c399f778b9a00b242e0055d599f55f6
SHA256

4246b22255d23af9a5366655f3ae93a21df0a9298153bc5035e5eaea2db1c9da
SHA512

e545ec27b0aae54e203c945d798eb3d3c1e8eafe0a41d19c781c7eafafc19d7aeb6ce80973d919e059d054b3dbc2bcc044407a8531819b84521a741887c46f3b
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuCmHic:bIDOw9a0Dwo3P1ojvUSD4PInrmHl

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001e59e-12.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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4540	lossy.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 960 wrote to memory of 4540	960	2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe	88
PID 960 wrote to memory of 4540	960	2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe	88
PID 960 wrote to memory of 4540	960	2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_10badfad7622e391c1fafea27db4adc5_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:960
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:4540

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\lossy.exe

Filesize
46KB

MD5
7a2a09e8c54573cf9c15ec9e141c3f40

SHA1
d83ce68f5dc6bd7cf3c5b43fe34bec62a7af2494

SHA256
029a68e402de0537cb53eb0040ad8d8b05f8e8f62e5d490ef1c426d9ab6de2a9

SHA512
4a356c2832c46cf111dbd4623f825e8d02aa4a0ee2f67cfb10c579c8a4a1f69d0edccd58c8bf3e2d8f0a55782c24ae995af147646583fd38dbae09a612c7d076

Download Submit
memory/960-0-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/960-1-0x0000000000720000-0x0000000000726000-memory.dmp

Filesize
24KB

Download
memory/960-2-0x0000000000740000-0x0000000000746000-memory.dmp

Filesize
24KB

Download
memory/4540-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/4540-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download