8d1dd3b0e94ac501921c4bd658d5747391ce55d139276a4a8899dce3f3e1b98e

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
01-05-2024 12:33

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General

Target

2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe
Size

42KB
MD5

6388e8c9df8d784e82bb8ca54e622a3a
SHA1

28d7a226c23dc906cb794885f8bf51ded3a2c602
SHA256

8d1dd3b0e94ac501921c4bd658d5747391ce55d139276a4a8899dce3f3e1b98e
SHA512

ce248824fc6c2acdb6c1a9a7ff50700480dca3fb13106d2c898b1a1ec01d69eb0997e9ab0d9adcffdd6ce06207b9c403a2c9d78416d1779ecb81ca8e104dcbdb
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3kAz:bIDOw9a0Dwo3P1ojvUSD79Rki

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012324-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2784	2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_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 2784 wrote to memory of 2932	2784	2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe	28
PID 2784 wrote to memory of 2932	2784	2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_6388e8c9df8d784e82bb8ca54e622a3a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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
42KB

MD5
026ef5718ab685afd787d47f5d7072cb

SHA1
bcd02c6aba857ea890dd8a7d8c76024aa755dac0

SHA256
b7e6d56a287569c1956bb8978c548776c7a72a33c4217111d4363c03121a39e6

SHA512
529d429da73f5ea417454d9794d89f24e08e8d84a8994c1957736036801ace02b5bc9ddc3ad735bc4f28b5befd4599442571aa6430a3445536f2b04957b9019d

Download Submit
memory/2784-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2784-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2784-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2932-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download