6200adfd0d68be62cdd4e3bee774ab41f48e5044b17efee341a37e9d594bda61

Analysis

max time kernel
141s
max time network
124s
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, 10:26

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General

Target

2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe
Size

33KB
MD5

191f74e4b112873786347b92d4590278
SHA1

f7d045a1b7bbdc342dcdfa218fa36404c850c928
SHA256

6200adfd0d68be62cdd4e3bee774ab41f48e5044b17efee341a37e9d594bda61
SHA512

d76395f50f7a609443709c0b2cd477f3d221c71063b0b384ae975bdaa2db2810a142f1ddc9a768d619340540c9c0a3d6d9470acdd8e27b22f49455ac8cb0f15a
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5PpO:bxNrC7kYo1Fxf2rY1O

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023b59-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3024	pissa.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 4512 wrote to memory of 3024	4512	2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe	84
PID 4512 wrote to memory of 3024	4512	2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe	84
PID 4512 wrote to memory of 3024	4512	2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_191f74e4b112873786347b92d4590278_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:3024

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\pissa.exe

Filesize
33KB

MD5
f1901cce4d8277b8ecbb9c901be55759

SHA1
2de1b8e6ed169c5e14d60a19a2a550ac560771c9

SHA256
5cefba5eb12921a9153b77045d58d3b5857809d5ae814d94acc1d551f693226b

SHA512
a7e212f5477c8e16dd228de8166fb53c123f43af5b701f5d3cc381275ac22bc16e80718bc5a36501eeccea09a3476ca9ed2872b4dc13e6133030143fa2f57498

Download Submit
C:\Users\Admin\AppData\Local\Temp\pissec.exe

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3024-23-0x0000000002020000-0x0000000002026000-memory.dmp

Filesize
24KB

Download
memory/3024-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4512-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/4512-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4512-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download