9d4616f072320879e85f16f3625115f86bf1dfaf4b96f7492202dcddf74668e9

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17/04/2024, 08:41

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General

Target

2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe
Size

40KB
MD5

b4c63553fc09a4a7f81b331470b2b230
SHA1

9c1c3dc502b873f67c5e35ffd29bc3891fed1cc1
SHA256

9d4616f072320879e85f16f3625115f86bf1dfaf4b96f7492202dcddf74668e9
SHA512

a648dacbdf6aae89a36d651e175699000b9f6dc15386da33ff1443aee0d08386fd313ab6ba5e08969e9fc0d9b2a302f0361d186b5000f8ef50de9017c0a56ba6
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfrW:X6QFElP6n+gJQMOtEvwDpjBsYK6rW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2940	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2816	2024-04-17_b4c63553fc09a4a7f81b331470b2b230_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 2816 wrote to memory of 2940	2816	2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe	28
PID 2816 wrote to memory of 2940	2816	2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe	28
PID 2816 wrote to memory of 2940	2816	2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe	28
PID 2816 wrote to memory of 2940	2816	2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-17_b4c63553fc09a4a7f81b331470b2b230_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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\asih.exe

Filesize
40KB

MD5
103c1f9372a60a157b11ea497625acc4

SHA1
718af0c17676bd9cd239bc87dba2aeaaadddfc2a

SHA256
735889366e02a1f4393286b16307937ec2cb50250cc39c37fcee4623e538b59d

SHA512
3597c46d7f893348bff8d4774fff12e35dd775bcda2d3df68bc4ce48738498b4ead40f96ac5a61d93d7551e9b49e736a32c6c32d256d46eb59614f0bdc5fc474

Download Submit
memory/2816-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2816-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2816-2-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2940-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2940-17-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download