15ebdc4334950ada60c4daec478b082d974a209ff9a19512d8e0c59654bdd46c

Analysis

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

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
30/04/2024, 22:31

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General

Target

2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe
Size

47KB
MD5

7e570e863c801a62934fdb390665b0ac
SHA1

7447a6925748b321dcbbcd576fc9c40f2c2ac2fd
SHA256

15ebdc4334950ada60c4daec478b082d974a209ff9a19512d8e0c59654bdd46c
SHA512

f805116916a21527030b0cb6a3f7019849d54c8b9de9474dfea5c20c6fee93ec3cf5c1392c21b43a5b4990e9017fbc48bd01b9594a67933e2208e1a02edc79f7
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkcb:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfb

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral2/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0009000000023435-13.dat	CryptoLocker_rule2
behavioral2/memory/2300-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4436-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/4436-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral2/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/files/0x0009000000023435-13.dat	CryptoLocker_set1
behavioral2/memory/2300-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4436-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral2/memory/4436-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4436	asih.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 2300 wrote to memory of 4436	2300	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	82
PID 2300 wrote to memory of 4436	2300	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	82
PID 2300 wrote to memory of 4436	2300	2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe	82

C:\Users\Admin\AppData\Local\Temp\2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_7e570e863c801a62934fdb390665b0ac_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4436

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\asih.exe

Filesize
48KB

MD5
07d77b2a1379daaeb68b64fa73636de5

SHA1
ac5ccb30507fd7b128aee2de67431c875865c55f

SHA256
4fe0b003f04dd66e9288a1b45c37401e7db35c2f0ec7e1727a1560ac274234bc

SHA512
32576a9a4c9494ee34a96c33a277bca13c84a03ef7812582822a0a1f3982dc7d0ab82690e8dab83350d91b3527901bee9f9fede5172e5d3a091f38e5e97f9476

Download Submit
memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2300-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2300-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2300-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4436-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/4436-20-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/4436-26-0x0000000000620000-0x0000000000626000-memory.dmp

Filesize
24KB

Download
memory/4436-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download