48d05ee66977733021e2dc32813afcf4c3a77f0f5ca5b835c09517d785bf1bf0

Analysis

max time kernel
142s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2024, 07:23

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General

Target

2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe
Size

46KB
MD5

1884b374e381dd6229a05b160c1c5386
SHA1

803fcaa70951e335f74bd9cbb489f0fa5c1a45a2
SHA256

48d05ee66977733021e2dc32813afcf4c3a77f0f5ca5b835c09517d785bf1bf0
SHA512

53da7aa1ad53418284b50c218ef5e31b5a01ac5e9432576e0e245a12e145f91e5bc7e7e386b1e60a47d34ab805b04fb24e18cfadecca9b869a2367beb653ec8d
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wse:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1c

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000002324a-13.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
1256	misid.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 3760 wrote to memory of 1256	3760	2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe	88
PID 3760 wrote to memory of 1256	3760	2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe	88
PID 3760 wrote to memory of 1256	3760	2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-03_1884b374e381dd6229a05b160c1c5386_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3760
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:1256

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\misid.exe

Filesize
46KB

MD5
a1a3e2a88672d005611d057b087f57eb

SHA1
8eb8c056dbbd80b3e8a40b80db74f8c1475e23d3

SHA256
f4f90a99e8d0f521321b54f9a9bd576e82db79319f9782df31989820a9cbcecf

SHA512
67937d29c31f3d70b828a2dafb2dade66a723d88efc3fd297cf806bae00a0d388f88e8cdfb8d6708ef876446d41aca45dffb4d1d834167e3af5b6955a96a9ea1

Download Submit
memory/1256-18-0x0000000000450000-0x0000000000490000-memory.dmp

Filesize
256KB

Download
memory/1256-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1256-19-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/3760-0-0x00000000004F0000-0x00000000004F3000-memory.dmp

Filesize
12KB

Download
memory/3760-1-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3760-2-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3760-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

Filesize
24KB

Download