22981f45e117c9382a86d9c94a8f1a030719298609bea93ad2209d3bab151055

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-06-2024 05:26

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General

Target

2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe
Size

84KB
MD5

b5a867a213455811bc6a4cf5642942bf
SHA1

5e8320d0c07acea19e2c58f7bbb4e3fdd93a36ce
SHA256

22981f45e117c9382a86d9c94a8f1a030719298609bea93ad2209d3bab151055
SHA512

a1cc4737ed19f069d9c66511ac3c7e7a77e0a5ec13996c9b6919d14c922c56fe52bd7e1628796594763e35c8f2eef4caaa749f8a516ea4941904ab7c3b1cf9a7
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrhcBl:TCjsIOtEvwDpj5HE/OUHnSMQz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1776-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1704-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1776-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012286-14.dat	CryptoLocker_rule2
behavioral1/memory/1704-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1776-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1704-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1776-15-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012286-14.dat	CryptoLocker_set1
behavioral1/memory/1704-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1704	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1776	2024-06-02_b5a867a213455811bc6a4cf5642942bf_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 1776 wrote to memory of 1704	1776	2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe	28
PID 1776 wrote to memory of 1704	1776	2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe	28
PID 1776 wrote to memory of 1704	1776	2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe	28
PID 1776 wrote to memory of 1704	1776	2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-02_b5a867a213455811bc6a4cf5642942bf_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1704

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
84KB

MD5
c46b0b79a7e066f490fd4fed5ff14005

SHA1
bd07432afa8308d15e4cd52f7266d16e10e5bcfe

SHA256
efed6cc5190fd68fa6e53cbd2912e2f3869e14fdbbb7418771c66c28bb1ea09d

SHA512
9098fe223eb16d99d6bc2d138d25243d55603730a6c87a0d1c5a0d59fc907969d965f3224e321d39c2cac8c2b5d1f201e7df69fcfbc76f8e249671764e0eec2f

Download Submit
memory/1704-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1704-25-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1704-18-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/1704-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1776-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/1776-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1776-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/1776-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1776-15-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download