6f7d6b44201f472198e1abbccdcde6742f678b4eef1784847255726ee7f99894

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03-02-2024 11:24

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General

Target

2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe
Size

44KB
MD5

2542dd43ade3a12eab959cb6006548b2
SHA1

9edd9d524c38a9789f4e41b00e9008e814875422
SHA256

6f7d6b44201f472198e1abbccdcde6742f678b4eef1784847255726ee7f99894
SHA512

fa077c55d62adf81fac1221224095ddfc10763a3ddc352aee1c2bd3d075d99be1e0df80a1e3ad92eac98d8be8ddfc3c4386d29128f35884c1790ff9d48b3c0f1
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuCmO:bIDOw9a0Dwo3P1ojvUSD4PInrmO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000f000000023163-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3764	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 2300 wrote to memory of 3764	2300	2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe	85
PID 2300 wrote to memory of 3764	2300	2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe	85
PID 2300 wrote to memory of 3764	2300	2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_2542dd43ade3a12eab959cb6006548b2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3764

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
45KB

MD5
f91f566f97fc6ea761ec780a5ad7f5bc

SHA1
83eea492a2b62bfb110a1a8e5c9b0da8038cc12d

SHA256
982295088ff419d2e247c6374c67336252a3af43999ff7df8457297ab9cda52c

SHA512
a43079257baa84e5349e872d257789dafce72bcbe764ffbb60d8ccfa2a26076c45668e065ac629c406c6b60b14a019fa74b06c14d9dbad90bd6d7b8489b0c4a8

Download Submit
memory/2300-0-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2300-1-0x0000000002140000-0x0000000002146000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download
memory/3764-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/3764-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download