e15d1764d657b46662117c84bcd4ca46e7041819e8d53f74223d11f1bbae52b2

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 11:32

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General

Target

2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe
Size

46KB
MD5

af1e7bdf89dadc65caeebe5143502b94
SHA1

61afb8de3b61675ea9cb97106739a39a1b5f4269
SHA256

e15d1764d657b46662117c84bcd4ca46e7041819e8d53f74223d11f1bbae52b2
SHA512

ee61c24ec4757ad251b4ba1c6cf96a50767cbd90b27628b1720ea85541dcea3376142071c8a453ee63ef5e88e29646cbe42b8cf340c09d7536da555152d4c45d
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hS4:bgGYcA/53GAA6y37nbS4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0010000000023153-12.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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation	2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4884	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 1956 wrote to memory of 4884	1956	2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe	88
PID 1956 wrote to memory of 4884	1956	2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe	88
PID 1956 wrote to memory of 4884	1956	2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_af1e7bdf89dadc65caeebe5143502b94_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:4884

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
46KB

MD5
e29ac235d525625c55687e2da531fc41

SHA1
c35cbe36da14a350ee99591dcfbf88f8e0d8b499

SHA256
097468e8acab29fa31e81b1ee642d7dbc3cc1f6003b8f619b01d5e6faf7a3ae7

SHA512
a9cd03b82ec5c5e15152b68bb92aa2062dcd83646afda93e9462d5fbd6fd5bfd319095ff2a52a5d24490bd9188fbb25bb16eb2d20722566f2c4354aacb53021c

Download Submit
memory/1956-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1956-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/1956-2-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/4884-17-0x00000000021B0000-0x00000000021B6000-memory.dmp

Filesize
24KB

Download
memory/4884-18-0x0000000002180000-0x0000000002186000-memory.dmp

Filesize
24KB

Download