23fda4d3d26ed2d8222ac9007c042eba394c3c4a2240a74eea9c28bfecdb8869

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 03:40

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General

Target

2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe
Size

52KB
MD5

c6ab5ceafe0f146e240774a5cee153cb
SHA1

7a36fcc2c802303f8adc50eaa1e1cd8f1aea3e93
SHA256

23fda4d3d26ed2d8222ac9007c042eba394c3c4a2240a74eea9c28bfecdb8869
SHA512

60cd8c3ac609938e4d1ffff9d3866047fb647129017b50b2a86a2971799dc38e62ad9a9b4953e269cf6c14306b704728a8fa2b8452f6258197965663802636d5
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9Xv+mb6uYGER:bIDOw9a0DwitDZzc161R

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000c000000023b78-12.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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1888	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 3324 wrote to memory of 1888	3324	2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe	84
PID 3324 wrote to memory of 1888	3324	2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe	84
PID 3324 wrote to memory of 1888	3324	2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_c6ab5ceafe0f146e240774a5cee153cb_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3324
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - 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

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Downloads

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

Filesize
52KB

MD5
39f7b1f0ecce1c9f45f7fcfe3cff521b

SHA1
4ef73148054905e81a136dabcbc28c3a9a1eab0f

SHA256
eb02b63713e6fca3333d53b8edeb44ec4fc9d9bdde0e39555d84a6bf7e2346fd

SHA512
88a524d0e733c0282b8d4dc07f67c3adf4681c846a7e2ae77524536b0015ccdac4ced230b0255628d184f9f3da15163035603a27728c3849a244999a62613be9

Download Submit
memory/1888-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1888-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/3324-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download
memory/3324-1-0x0000000002070000-0x0000000002076000-memory.dmp

Filesize
24KB

Download
memory/3324-8-0x00000000021D0000-0x00000000021D6000-memory.dmp

Filesize
24KB

Download