e522ec16aa6f7a999f4ecb9ec0030c6db16c2f425a41830f788ca8f36999fd86

Analysis

max time kernel
140s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
03-05-2024 03:39

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General

Target

2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe
Size

34KB
MD5

625320a6345714752e0bf08e4109e992
SHA1

b1fff4ee18a808342a676d135267667a7ffa7195
SHA256

e522ec16aa6f7a999f4ecb9ec0030c6db16c2f425a41830f788ca8f36999fd86
SHA512

292733ff47258d14ffc847c3d136955f631269471c6508faec426e7f83f772e16b2ff0a784e322c914ee4ab65109d118e7abebce45d589f6ddff821eaa230690
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5Pp75:bxNrC7kYo1Fxf2rY19

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023b99-12.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-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4824	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 3496 wrote to memory of 4824	3496	2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe	85
PID 3496 wrote to memory of 4824	3496	2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe	85
PID 3496 wrote to memory of 4824	3496	2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_625320a6345714752e0bf08e4109e992_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3496
- 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:4824

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
34KB

MD5
380fa1e9eaf1c7255928ef166f2cce0c

SHA1
03fe510ed7f07ea5fa456831948f0b7a4219c239

SHA256
d46122ca19a663322f139bc482ecefcf6bbf6622eca331bfe155eaba20ee2772

SHA512
0e6ebf8b39777ea002f712068771fb01dce5b96caed65f17f9a6413b068e0bee27171a2581347ae655cb174160f715356b5ae7fb4d8ea1395af8133c95deed64

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3496-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3496-1-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3496-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4824-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download