751d4e1e3630ab5f09a3a23c307989046065b0345311b69c2262d8444d9dbfd5

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2024, 20:26

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General

Target

2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe
Size

121KB
MD5

091cc984d2f1c97434aa6fa003930737
SHA1

0e75b59c2f9d427c0bb228aca76c4165606fd25e
SHA256

751d4e1e3630ab5f09a3a23c307989046065b0345311b69c2262d8444d9dbfd5
SHA512

71c6aa38594bb1b9a7992dc71fb374ab959e309bc600c5d89c0438d74acdacc350bad6259cf0b85fbfacad2cff4029843eac1addd7029530325c0396eec3b083
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMg8:u6a++OtEvwDpj6zY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4952	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 688 wrote to memory of 4952	688	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	87
PID 688 wrote to memory of 4952	688	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	87
PID 688 wrote to memory of 4952	688	2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_091cc984d2f1c97434aa6fa003930737_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:688
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:4952

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
122KB

MD5
58e373ba65b3183779a0a08362fa356a

SHA1
b4c502379626e88da91fd548cc4903c0b2a828e0

SHA256
9d29fbcf35b8415a770e05c4f3d1d8dc9a8a65cffa2fafecadd7a4a17c0f4b6b

SHA512
f5fa1f510feeca1a2e55eb6df9c5b564c31f6db6175525a8b4aa0a9eb1d6d2c140a3dfa232b8149ecf5899226bd4a1565599b22e5bd6ea6a1590c2ff2a7b9ecf

Download Submit
memory/688-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/688-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

Filesize
24KB

Download
memory/688-2-0x0000000002220000-0x0000000002226000-memory.dmp

Filesize
24KB

Download
memory/4952-17-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

Filesize
24KB

Download
memory/4952-23-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

Filesize
24KB

Download