7e32fd6bed6bc14176e45afed1fc9a50705e23c4dfbe03c499712e7bd64e20d1

Analysis

max time kernel
117s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 19:52

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General

Target

2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe
Size

51KB
MD5

dc87bf83284ad9c7c89ad44949eeb0c6
SHA1

d0382d96c3154ae58e7c974103da6c297a4d14d5
SHA256

7e32fd6bed6bc14176e45afed1fc9a50705e23c4dfbe03c499712e7bd64e20d1
SHA512

47cf009c7f8d79b2105a7252f2e6eaccfc4b24f95699c724ae16509c3e9ebd611831b326c59c5f8ead76cb1dc171b913db012fc0e0dd1e683e46d79829c482b8
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9SVu:bIDOw9a0DwitDZz1w

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023151-12.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1600	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 1244 wrote to memory of 1600	1244	2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe	88
PID 1244 wrote to memory of 1600	1244	2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe	88
PID 1244 wrote to memory of 1600	1244	2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_dc87bf83284ad9c7c89ad44949eeb0c6_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1600

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
51KB

MD5
0bece02b867e9fc253a81a6f1cddcbb5

SHA1
7b02bc06df0681d60ecce457f5ab624c49153dd3

SHA256
8969153ffc776d1adceadd5caad35d21bf18f76f4996f722b085b5d2b150f882

SHA512
6fad7f7ac4399e40620042307565e044f24c19d1e2d994275acb398f7e6d1ba977bc9421b06f1c9d5298240ddd8bf453c03d133fd6a691bf2741df50e64487be

Download Submit
memory/1244-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1244-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1244-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/1600-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/1600-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download