fc260cb40166b3ff98f568a4fb217dc586b5039e39c5f80f634d5ee989e8ff34

Analysis

max time kernel
158s
max time network
172s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14/02/2024, 12:44

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General

Target

2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe
Size

41KB
MD5

cd45417b27d8cfdf53589f29d0f2e4f8
SHA1

b4672b176619bfee4f6da6d617634c8b3584e186
SHA256

fc260cb40166b3ff98f568a4fb217dc586b5039e39c5f80f634d5ee989e8ff34
SHA512

69c0c82d370123e9cb404de0f856d53710143b39926143ce6a9b6a64d2877db1aafffd2473f532caf4eb7e5a74f19bc37a734f35bc9896a57b0d39f779210d27
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PEM4Z:bIDOw9a0Dwo3P1ojvUSDhcxZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012270-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2816	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2404	2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2816	2404	2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe	27
PID 2404 wrote to memory of 2816	2404	2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe	27
PID 2404 wrote to memory of 2816	2404	2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe	27
PID 2404 wrote to memory of 2816	2404	2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_cd45417b27d8cfdf53589f29d0f2e4f8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
41KB

MD5
7e82e6ed4831b04764a8d663abbe9ba0

SHA1
ebded4de7340b2a315561d02b22521b400e9ded4

SHA256
d48e3cc10ad1dc93a707126a32ac8990a8d8b12637656c89aa6cc0cdcadc8a50

SHA512
ee42df0313f4db152443aaab5f83897a963343c5a7fa5ff40df9ebd6a0c314aac7d7a0b3928b8f1c821c2f1358c2fd9257d8aeff7fb97e01bcee4b8ee51ee8b0

Download Submit
memory/2404-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2404-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2404-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2816-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2816-16-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download