fae6ce4da4d16a46cb872e44a2e7f81766c74ea43f549f81ee2290d3d4ac80ce

Analysis

max time kernel
77s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 06:42

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General

Target

2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe
Size

35KB
MD5

361c8a0d16c9031baf6955d9f638bb07
SHA1

e538604a2871ae607a466991c9bc0c8b8a58ef7d
SHA256

fae6ce4da4d16a46cb872e44a2e7f81766c74ea43f549f81ee2290d3d4ac80ce
SHA512

17a177f5d02c55755f0131cef90c6cf2f045b6ee4af42e8d89bd522c04492945f0969e30eb9ab93b4473e503e9e04c7dba3c3e328dda191ca09f00050d132c38
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmUzrp:bxNrC7kYo1Fxf2rYPLPp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023451-12.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-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3828	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 3680 wrote to memory of 3828	3680	2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe	83
PID 3680 wrote to memory of 3828	3680	2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe	83
PID 3680 wrote to memory of 3828	3680	2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_361c8a0d16c9031baf6955d9f638bb07_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3680
- 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:3828

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
99d47fa6a2cd5ef62d83637fa90af75b

SHA1
193de8a975b65fba2ded16019aaac19c46752b48

SHA256
d71a204aab8626d8caac73116dd7cd49dc85c86a3f259180029cbbb8b1bff418

SHA512
e7552bf551b7728f9d3632d333f78018164a2cef068a6a5c26ed8f637e7933f893d981a172d6d60eb9e2327136b467619a44f66687292b9a08f2ab91574767e0

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3680-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3680-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

Filesize
24KB

Download
memory/3680-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download