a70a2472eed572c70f07346964acf57f0aa03190d74bfe47634738e9f02ca3d9

Analysis

max time kernel
114s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
24/04/2024, 17:52

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General

Target

2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe
Size

45KB
MD5

a770f064c5fd59a2259862b789b563e3
SHA1

7078e048feb528955a4cf3010d58204d08de39cf
SHA256

a70a2472eed572c70f07346964acf57f0aa03190d74bfe47634738e9f02ca3d9
SHA512

369218fb818b917fe7ccad3f1b23bb905140e304027ab7929ab59eaa43056cf7f16398afb4cd7a4b4b9121337c6ac0bf88ad906fc1059866b0c912d72a0c58e8
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFp1Yvb9wAv:bxNrC7kYo1Fxf3s05rwxbF7YvbF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000233af-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-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
4568	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 2144 wrote to memory of 4568	2144	2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe	85
PID 2144 wrote to memory of 4568	2144	2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe	85
PID 2144 wrote to memory of 4568	2144	2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe	85

C:\Users\Admin\AppData\Local\Temp\2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_a770f064c5fd59a2259862b789b563e3_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2144
- 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:4568

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
45KB

MD5
ecc60471c65233ff1320fbe567e176d3

SHA1
dfb606d44de484b0986f273308195e576b6aa5a7

SHA256
52cfe0a72330e99c0a29fddd0ebc71eb8382df159a99f46c71f6f62a565784aa

SHA512
bf5fdf3cbf707a7ca61463e53cf12e65ba5f197bf3d38772aa91646ff9afeb4bbab12f9f8f04776b2ce1dc53ca18d9c58538f96ebf9a1e786c22f9e1cd112b17

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/2144-0-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2144-1-0x0000000002250000-0x0000000002256000-memory.dmp

Filesize
24KB

Download
memory/2144-2-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4568-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/4568-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download