ffb3ed8fb0229e1e211e4092d5d5087941e7bea126ebe30560e0fa582fc077f7

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05-06-2024 03:48

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General

Target

2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe
Size

50KB
MD5

b651ef1ef061dad875832062d418e317
SHA1

1a93de8682ded86d6937050c7b2734f40f3bd214
SHA256

ffb3ed8fb0229e1e211e4092d5d5087941e7bea126ebe30560e0fa582fc077f7
SHA512

5ffebb5528f28041f1567fc0bc0a4c3d590c163425952d54d907d1fbef8d2f9624a791f86f70fa3c08140f58e9383f581829fbac21c0e32d27875627cdd1bf98
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuDLlD+JIr:bIDOw9a0Dwo3P1ojvUSD4PInyDk8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001472f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2572	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2784	2024-06-05_b651ef1ef061dad875832062d418e317_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 2572	2784	2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe	28
PID 2784 wrote to memory of 2572	2784	2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe	28
PID 2784 wrote to memory of 2572	2784	2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe	28
PID 2784 wrote to memory of 2572	2784	2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-05_b651ef1ef061dad875832062d418e317_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-05_b651ef1ef061dad875832062d418e317_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:2572

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
50KB

MD5
9e5364e7bf828a08549a61dbea4fd820

SHA1
de3fdd8128276d9897dcb0d638d3aafde987560a

SHA256
5984c3de640c997a8ec32e0692ac3be2206d602c0c26a6f7c79d88f5fb5ce5a1

SHA512
ce89952d801ed90753b40a9116c8a5ba73f993b9b13e2f3a7546308c98783e161a6d1790a7f2766d64c85964ac33a344c7e412cc063ddd09c228fbafc8a9bacb

Download Submit
memory/2572-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2784-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2784-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2784-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download