3d62167e92604e66374e29a836437889eab6d0ff9efced4ee444f3e742b34b71

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2024, 12:51

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General

Target

2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe
Size

52KB
MD5

8e62196d1aca7e4e09826908a5fce30f
SHA1

7293a76be7739f06f3f8c9dc8bfe6fffee5af1fc
SHA256

3d62167e92604e66374e29a836437889eab6d0ff9efced4ee444f3e742b34b71
SHA512

e26e48641c61fec5bf87bafe158d322172719107f9768c34182cfe2feebdf0286f2a98cb120be870ac0b7fecaa4d4f20c644a861bbe49ea9c7d80337d96ed632
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbmhTyB:bIDOw9a0DwitDZzcTR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002325a-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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3976	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 1512 wrote to memory of 3976	1512	2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe	84
PID 1512 wrote to memory of 3976	1512	2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe	84
PID 1512 wrote to memory of 3976	1512	2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-17_8e62196d1aca7e4e09826908a5fce30f_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1512
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3976

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
9527727ee3ec22ffc4705df9c9bb886d

SHA1
1c31c6a955a7348ae255532a65cedb05a7c2488a

SHA256
ce5acda967f0e6bd69a7a1e7dfff4433d31ed7e5809b33cfd990e9839366f4c6

SHA512
9b62171dfc2254b8816c7ee41c4840a90d541c35f9d8f37b5cc72a96a9ed00a1bf6f3b65b2f73d1f1f409dde73c9a063f5d9da8cda05f157c1f223a3f70495f9

Download Submit
memory/1512-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1512-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/1512-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/3976-17-0x0000000002060000-0x0000000002066000-memory.dmp

Filesize
24KB

Download
memory/3976-23-0x0000000002040000-0x0000000002046000-memory.dmp

Filesize
24KB

Download