86ba61236e65ae592a16a56df6d6260527dea6d50183d2baf2d01778be67b207

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 20:31

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General

Target

2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe
Size

126KB
MD5

3b8d7b32f7c42730ad3a5c3c8c721fe5
SHA1

d9b656d7e38c52606a63bd86b0d8e84825b74141
SHA256

86ba61236e65ae592a16a56df6d6260527dea6d50183d2baf2d01778be67b207
SHA512

e027741656b81a06622af63a14359774c30f551fc4ce7a17a48f27ad269e8485a455e3b5a5e20e826973401b327a0de7a99b50b73a2622a7bc4a6a12cb37d724
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxGBpBB:vCA9OtEvwDpj7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012252-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2532	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2320	2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_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 2320 wrote to memory of 2532	2320	2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe	29
PID 2320 wrote to memory of 2532	2320	2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe	29
PID 2320 wrote to memory of 2532	2320	2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe	29
PID 2320 wrote to memory of 2532	2320	2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_3b8d7b32f7c42730ad3a5c3c8c721fe5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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\misid.exe

Filesize
126KB

MD5
b58b48ef7d4a4ef0460a81ad541a032c

SHA1
b543c735ba452e5b69451afa27fed4054a6e1845

SHA256
a238a7319c7babda3429b76e43f258c0d14c80633edd9b027dd14f1ef2d3fe69

SHA512
9cb773eaa14afab9149700ec2ef9b68f1a4d0befa754c26dd1d12ebf353de16a387bb8ac5755f6e24e6e07515faa1da00e92025095025e70ff1fd066681d5b2a

Download Submit
memory/2320-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2320-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2320-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2532-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2532-17-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download