52d4e921956408a6fc700960b851b0420869b20d7cea8909a177f76bd7885ee4

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
16/05/2024, 19:53

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General

Target

2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe
Size

390KB
MD5

88b0dea397be2a47c90009feb1d9c5af
SHA1

fdccc66d8e6d7c3df8d8ee29a5967887adcdf27e
SHA256

52d4e921956408a6fc700960b851b0420869b20d7cea8909a177f76bd7885ee4
SHA512

cc5d98831bdf252ba025c68f90daeb3c7cb29ffa2c51364d731c9ef64d2ae360fab6dc645cb3dc638a80f158685175c1d974416ef0c97dc672c72baad88f00b7
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXR0:nnOflT/ZFIjBz3xjTxynGUOUhXR0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000022fbf-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-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4560	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 3496 wrote to memory of 4560	3496	2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe	83
PID 3496 wrote to memory of 4560	3496	2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe	83
PID 3496 wrote to memory of 4560	3496	2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_88b0dea397be2a47c90009feb1d9c5af_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3496
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4560

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
390KB

MD5
e4bd901c2ce64ec82ed608a4f5a233f5

SHA1
4976bb44ebb16ea2cf7475ab6808291b4d17bc2c

SHA256
9a715ee9c9f1c355b14520df50c3001af4fb9b71c00e749b55a17efba0299605

SHA512
28bf2c88ae711c247f1946ed551b6717f50a340ad40918acbb5b7c0ef85472df014efe72281767c180ae73d3025ee4429f372d1aef02a2695661a2c2116ad351

Download Submit
memory/3496-0-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/3496-1-0x0000000003150000-0x0000000003156000-memory.dmp

Filesize
24KB

Download
memory/3496-8-0x0000000002110000-0x0000000002116000-memory.dmp

Filesize
24KB

Download
memory/4560-23-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download