3e4649fa7fc8e2ced57c66418973bb94aecf1140ddb969373e87b1226e1c7642

Analysis

max time kernel
126s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09-05-2024 02:38

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General

Target

2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe
Size

40KB
MD5

aa84dde47aa63bb1c52849db9fa07b04
SHA1

f9aad85519d0ad26a273f998d76e21fc85aa14cd
SHA256

3e4649fa7fc8e2ced57c66418973bb94aecf1140ddb969373e87b1226e1c7642
SHA512

e783f0f59ddb932d4270b46c13dc7c5b4850e22da1fc325abfaca1fd99eab58490779b0a5890f9cb64260b61edfc1ff96143173f7690d9bbc02181d63677a408
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xgy+:bIDOw9a0Dwo3P1ojvUSD79yy+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000015605-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1748	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2216	2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_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 2216 wrote to memory of 1748	2216	2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe	28
PID 2216 wrote to memory of 1748	2216	2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe	28
PID 2216 wrote to memory of 1748	2216	2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe	28
PID 2216 wrote to memory of 1748	2216	2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-09_aa84dde47aa63bb1c52849db9fa07b04_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2216
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1748

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\lossy.exe

Filesize
41KB

MD5
650d1ade0127411649540467cea7b07e

SHA1
2533ec03253406f1810b85e8c8aced4850d1f5f4

SHA256
50f4079ec3da769c706d32d72b040f394916b0907a4a2e543d748fcc76c8a14f

SHA512
66915601de17c889432327e58aa7c5a85ad650aedfd3063c24fe1bb011a87b07c857d25598a0c010b1bc1bd5aa35095a83d9c7c5f1458c9fab4c1f19c1c9f592

Download Submit
memory/1748-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2216-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2216-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2216-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download