4502553f1889ae2519f8b164a3b479a1a1c1de70af026ec1b9ce2d52314b0768

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 02:44

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General

Target

2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe
Size

34KB
MD5

addc32323ec92fb9f36af3c8a4c4038a
SHA1

1258e8b4ba8958672b5288514bed9b9f3700dcbc
SHA256

4502553f1889ae2519f8b164a3b479a1a1c1de70af026ec1b9ce2d52314b0768
SHA512

3b3162f4b5efa1c7d2bb0437989f1ec455d35ba7e425ed6ea45318c675ac1975e6ae9fc97f36ebf6c2deb5c701f3b970e34f83998c5e0ca3e8ef2aa3fff9bc7e
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5M4gU:bxNrC7kYo1Fxf2rYA3U

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\pissa.exe	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

Processes:

pissa.exe2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	pissa.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

pissa.exe

pid process

3992 pissa.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3992	pissa.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe

description	pid	process	target process
PID 1624 wrote to memory of 3992	1624	2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe	pissa.exe
PID 1624 wrote to memory of 3992	1624	2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe	pissa.exe
PID 1624 wrote to memory of 3992	1624	2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe	pissa.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_addc32323ec92fb9f36af3c8a4c4038a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1624

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:3992

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
35KB

MD5
8eaecb36246bbf93f8a1ca368f0a9d58

SHA1
0805c4d07f56cc8bbeb33561491986a48e51b65e

SHA256
d84f7eb5690b3958375458dd0ed0328acebce0240f9299919ad4c347cecf5b45

SHA512
adaab0c1e2924dee22c72dc668ea88b6e488cc12beaf5480d54ab3c40e0c74acab3632e9955c6a2f087577b96962a45d5f06536c5f58af5d7dc430ce040385f5

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/1624-0-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/1624-1-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download
memory/1624-8-0x0000000002050000-0x0000000002056000-memory.dmp

Filesize
24KB

Download
memory/3992-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3992-23-0x00000000006F0000-0x00000000006F6000-memory.dmp

Filesize
24KB

Download