4f06a5711862e4774742d3f578c9e0f00a389a7110bcdad69f45e45da0c25051

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/01/2024, 21:22

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General

Target

2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe
Size

46KB
MD5

32c7b92fe7faee66936391bd1bb9e69b
SHA1

11c0446ef4b91db2f9cc10597f74423106e94b54
SHA256

4f06a5711862e4774742d3f578c9e0f00a389a7110bcdad69f45e45da0c25051
SHA512

d672bfa461827e763b073513e05089b06a00ecb016505abd4b61b918b0534e32b3b7fade375deff6b48abe0214762e202f2c1bf62eda6a21a598583acce1da61
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hD8:bgGYcA/53GAA6y37nbY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023217-12.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	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 2316 wrote to memory of 3036	2316	2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe	89
PID 2316 wrote to memory of 3036	2316	2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe	89
PID 2316 wrote to memory of 3036	2316	2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe	89

C:\Users\Admin\AppData\Local\Temp\2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_32c7b92fe7faee66936391bd1bb9e69b_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3036

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
8d47f25d72526df1d6643e332cd9aa8d

SHA1
44c64c2b6f77fdc7946d426e20e372c363be6f90

SHA256
9068a1c55760dd8bfb16110208d5476da199f143e92e6408d96bb2a7324f39ee

SHA512
227dcce49332e64af2b0d1ea0fbeba9239513dd558b06c50d2d936fbfc228f824b5766cfbde8543d6ef1328226620cd4fbc86a0f9dc6cd483511d1b6646f61bf

Download Submit
memory/2316-0-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2316-1-0x0000000002260000-0x0000000002266000-memory.dmp

Filesize
24KB

Download
memory/2316-2-0x0000000002290000-0x0000000002296000-memory.dmp

Filesize
24KB

Download
memory/3036-17-0x00000000022C0000-0x00000000022C6000-memory.dmp

Filesize
24KB

Download
memory/3036-23-0x0000000002210000-0x0000000002216000-memory.dmp

Filesize
24KB

Download