14ff3d318c36c89873800055c34aefc2fd40c84879b99e5ac88782a7b7188698

Analysis

max time kernel
135s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/05/2024, 23:27

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General

Target

2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe
Size

42KB
MD5

de7a43d8a2476f680675235ec58d8b0a
SHA1

36bca03e79bd61f527f8834ff02fda131d497184
SHA256

14ff3d318c36c89873800055c34aefc2fd40c84879b99e5ac88782a7b7188698
SHA512

195446d1dcba561672a62513580cce54e224e50123f0c767d5fe6069937268f752471b1ba7279ba42d0b01fc6d1232e7ea9122863dc6c9d1475217aa344c24f2
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqZrpKy:bxNrC7kYo1Fxf3s05rwxbFE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023297-12.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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
1480	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 756 wrote to memory of 1480	756	2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe	83
PID 756 wrote to memory of 1480	756	2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe	83
PID 756 wrote to memory of 1480	756	2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_de7a43d8a2476f680675235ec58d8b0a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:756
- 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:1480

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
42KB

MD5
d2068f2eadab600697650ceb00a7a17c

SHA1
7dca885e03f05f48d84bf7a173ea9b3f23a8d940

SHA256
b8e0531f8c2a5f0368bd803d7e5fde93e455912074610cc56217d9db3cdecf23

SHA512
d981abed024cb43273afd0d44f8823c4c92548063ed2009376c647e32ea03e18d60a502e516cfc09c66394435487080e9d06c30ccc9c389d3e4c49b5717b3288

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/756-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/756-1-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/756-8-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/1480-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/1480-23-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download