a228fdab92f56e0d5295725ace9bf79584c73abf3fc6a1197e3c00b8ef7c99db

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
16-05-2024 15:49

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General

Target

2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe
Size

48KB
MD5

88bfaad0bbee8739fb50df4cbf2fa251
SHA1

62585369847ba70e0b2b3461b697a9354ecc98f8
SHA256

a228fdab92f56e0d5295725ace9bf79584c73abf3fc6a1197e3c00b8ef7c99db
SHA512

ea93a4bc0d867ea8bbfbbdecd6f2c551fde352e667a75894da756f388ce3428c827f61a389e7bb0256ef2a568fcc6f7453506508628664500e0319b74d42b271
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuDLlD+c:bIDOw9a0Dwo3P1ojvUSD4PInyDp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012279-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2712	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
3008	2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_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 3008 wrote to memory of 2712	3008	2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe	28
PID 3008 wrote to memory of 2712	3008	2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe	28
PID 3008 wrote to memory of 2712	3008	2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe	28
PID 3008 wrote to memory of 2712	3008	2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-16_88bfaad0bbee8739fb50df4cbf2fa251_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3008
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2712

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
48KB

MD5
3e2fe3d68ab1273ba95253520a43101e

SHA1
d43e5d5d6061b3d73c454ef46dce685ff0997d12

SHA256
6d288e791b44620a0578db5bb7765509d6f8d20680a6dc6f2e8680d1fbe5e4e5

SHA512
e527c98d027daa9f733bac63b59979f003844fa9846de16f5d24cd35f46c4bae1df52cf232f7edf9432839cb1916829698c2b368ed6e72a6280f395775e446d0

Download Submit
memory/2712-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2712-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3008-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3008-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/3008-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download