b8886396e40d76f23b041b914bae0e5d1b116699f3e0ca08b7ddeb31df657c67

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 03:42

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General

Target

2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe
Size

386KB
MD5

0164f86cb4464597862ff8ee0cfe9e7a
SHA1

f01f916550c7a4d021e410531b7d80a572d703f7
SHA256

b8886396e40d76f23b041b914bae0e5d1b116699f3e0ca08b7ddeb31df657c67
SHA512

57024fc223c38dc205472522e52c3efc8e8fc4e544edf5c8998d1d9e4383161d53f8744efbcdf663bdf15c6165a1a0cc35a7a6fb22ef1411364d1957b198039d
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXR:nnOflT/ZFIjBz3xjTxynGUOUhXR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000800000002332d-12.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3824	hasfj.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 4040 wrote to memory of 3824	4040	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	97
PID 4040 wrote to memory of 3824	4040	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	97
PID 4040 wrote to memory of 3824	4040	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	97

C:\Users\Admin\AppData\Local\Temp\2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4040
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3824

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4176 --field-trial-handle=2264,i,13734085038406049477,12426093271221802693,262144 --variations-seed-version /prefetch:8
1⤵
PID:456

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\hasfj.exe

Filesize
386KB

MD5
1063588066a8b57180105318b00941c9

SHA1
59d98976df7b65066b8b4e6ce0f95bfaed4158a1

SHA256
a036138ba185659c2fb6e5689719b6ef95b82de661dcad0fc282164c4e7b33fe

SHA512
f4cf909f230112b9bf15959f08df9da9b0fcacebbd95fd246c1d12592bb9c0e4e45faae6c6574fd7054d3c15ff9f1dab7ef58d1f652e59db9af64c3836806bda

Download Submit
memory/3824-17-0x0000000003010000-0x0000000003016000-memory.dmp

Filesize
24KB

Download
memory/3824-19-0x0000000002120000-0x0000000002126000-memory.dmp

Filesize
24KB

Download
memory/4040-0-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4040-1-0x0000000002350000-0x0000000002356000-memory.dmp

Filesize
24KB

Download
memory/4040-2-0x0000000002400000-0x0000000002406000-memory.dmp

Filesize
24KB

Download