07fc6247af07955d69f9a59a612386f56e9d05b4ee11e2d108260ca3eaa52d64

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-06-2024 05:42

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General

Target

2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe
Size

35KB
MD5

4dfd9aeca13e4c5e423c6f227ba6b235
SHA1

af58916520f5edf4ec4a1dc25f10b1f8ee1b1702
SHA256

07fc6247af07955d69f9a59a612386f56e9d05b4ee11e2d108260ca3eaa52d64
SHA512

53bb7a880b5cf0efdc82e36f5b471735be27e9ce7eec426908c06a3eb38667567dfa51b7a2238f7241014c0c6102328a491bcf951ec52c4a77fbce55a617982d
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg9Arbkzos5jmUzrD:bxNrC7kYo1Fxf2rYPLPD

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000b0000000233b7-12.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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	pissa.exe

Executes dropped EXE 1 IoCs

pid	Process
3476	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 4660 wrote to memory of 3476	4660	2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe	81
PID 4660 wrote to memory of 3476	4660	2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe	81
PID 4660 wrote to memory of 3476	4660	2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe	81

C:\Users\Admin\AppData\Local\Temp\2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_4dfd9aeca13e4c5e423c6f227ba6b235_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4660
- 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:3476

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
b6741edd0666343d55f6556b43c94bee

SHA1
36d28ac6f121618af94fba304826ad26a2478202

SHA256
b60d16e437a9d0f695d485399a04222579c50f83d4d77a407cbb494b5937af4c

SHA512
a5fa7bcae04c75232de0896b4d44a77bdcb77038fc6f43b0c9702aa6ec5a5bda2bcb02d42540b7405d5c6926d7ad6757a52c922406d835b1df15d6da4be21014

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

Filesize
261B

MD5
11bed1c06d8f4680de5154405be20365

SHA1
9c3095f1aa0b02924c23592d1e86673bb0081ca1

SHA256
bcc0582f122db6e61d2aa06628275f5b882c01ca037699427d0f68e48d744666

SHA512
050bb38ff33ab7e8e8aa647cffb26d2b0a54074340e79f0acf0db8f076c421505f1e4c1ce169d55aeacd4085ce258a78d24327c9393650642963beb130517da8

Download Submit
memory/3476-18-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3476-17-0x0000000002D60000-0x0000000002D66000-memory.dmp

Filesize
24KB

Download
memory/4660-0-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download
memory/4660-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/4660-8-0x0000000000710000-0x0000000000716000-memory.dmp

Filesize
24KB

Download