37137a2faee1f8f5d4c629a5330c39b510c85b491bbe0ea3e0886830478cab0d

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-05-2024 08:22

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General

Target

2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe
Size

56KB
MD5

1fdba248282b8cf01b411a315ef52f7b
SHA1

5003e4b952b2397880db053b16882021950b7e23
SHA256

37137a2faee1f8f5d4c629a5330c39b510c85b491bbe0ea3e0886830478cab0d
SHA512

efe4f92f0f9bc0613b2ac255d30dab7248cb74d046bfb6d8c70cb346e0e31bf2ef274a2a4cdd34136f5a5ef8c2329fbed63b92262a6205478ce42d97bcec64fa
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puI4:bIDOw9a0DwitDZzcTLI4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000013420-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2512	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1660	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_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 1660 wrote to memory of 2512	1660	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	28
PID 1660 wrote to memory of 2512	1660	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	28
PID 1660 wrote to memory of 2512	1660	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	28
PID 1660 wrote to memory of 2512	1660	2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_1fdba248282b8cf01b411a315ef52f7b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2512

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
56KB

MD5
d1a72e67d477a644d9d10aed8664ad61

SHA1
f14d0725f8010c5a81a2aaa73afc5808de121469

SHA256
ad281492ff7b19d8320eccc278a133b39bda9efbbd6abcb55420c5cca6f6ffd8

SHA512
7f32057d0f7ecb8bfe76c8b751cad096242d55a75d31a9563373504efa82fc8c0a12733015a3b7dc0dc0c57a0ba2d823a71a3745cad6a57096849049de7f5efc

Download Submit
memory/1660-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1660-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1660-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2512-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2512-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download