97a99af395f1e814a0c7467f3d482121aa92e1399c3bc2319bbc901dc2805f1a

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
15-05-2024 05:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe
Size

55KB
MD5

d522e942e828f4a13897d63651825186
SHA1

a5cb8dfeb5225370d0c786bc4c43222b2f2049a0
SHA256

97a99af395f1e814a0c7467f3d482121aa92e1399c3bc2319bbc901dc2805f1a
SHA512

df128ad904d9ee01a5f9da883719cfa121deee1002fbdd8882cf9338303bae8ad0f7caf9bc51cf9d2c119011303766421481df0c26871719a1bef9adaa19dca0
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puQ:bIDOw9a0DwitDZzcTLQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014502-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3044	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-05-15_d522e942e828f4a13897d63651825186_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 2356 wrote to memory of 3044	2356	2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe	28
PID 2356 wrote to memory of 3044	2356	2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe	28
PID 2356 wrote to memory of 3044	2356	2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe	28
PID 2356 wrote to memory of 3044	2356	2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_d522e942e828f4a13897d63651825186_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\lossy.exe

Filesize
56KB

MD5
2ebdb3b9cd589b56a906f3af4781f9ea

SHA1
934d6c9a74229a6a16c5cd1377a6c98867c255e5

SHA256
36ce6820fe5dc54ff03a43c0aabe96c245cff82b2bc1c3067e253c2684bdf1fd

SHA512
e76f9a3f51a0fa3a3b8430489514c98c8d1e477a0d2e2fc89a77471367c0296484621a904dd82afa93f08be26c21b86af4ba8cb1706f8c6fcbde6d31b51d6d4b

Download Submit
memory/2356-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2356-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2356-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3044-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Filesize
24KB

Download