bec0939b590e22c8bbeeb741f533741d112752159322b8fb7cbbbfe4a88c02f9

Analysis

max time kernel
182s
max time network
209s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28/01/2024, 19:28

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General

Target

2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe
Size

39KB
MD5

6befb33ffacce1f6f2f83600f2ca14a6
SHA1

2c16d37ecd9a41e7439fe10bfb6e55c5bb638521
SHA256

bec0939b590e22c8bbeeb741f533741d112752159322b8fb7cbbbfe4a88c02f9
SHA512

52c4432f537ab1e24285bc20ee6885efb95d67a127e9b72a54e6c39825b9e802fdad94e1d51ce0b2d015e8996218b1234900510c8dee63a4ad313bd1791f7970
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PC:bIDOw9a0Dwo3P1ojvUSDhK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x001000000000b1f5-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2776	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2396	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_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 2396 wrote to memory of 2776	2396	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	29
PID 2396 wrote to memory of 2776	2396	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	29
PID 2396 wrote to memory of 2776	2396	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	29
PID 2396 wrote to memory of 2776	2396	2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe	29

C:\Users\Admin\AppData\Local\Temp\2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-28_6befb33ffacce1f6f2f83600f2ca14a6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2776

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
39KB

MD5
264a9efafab8734a97637994fb942b0e

SHA1
fcc80e61d950ac51c417df244077d170f1ac85af

SHA256
b3b758da1b95bc29bc3845cf0efd3308959ae178aad07b1c6e99623ee07cf771

SHA512
811e9de968ea8c0fb3b70bf15e8c481f95914a194a942604c6ce18824d3db020ed3af4baffb1625672305d6617a2707e3b62560d14a390c4a6bb0f195f008db3

Download Submit
memory/2396-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2396-2-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2776-16-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2776-15-0x00000000006E0000-0x00000000006E6000-memory.dmp

Filesize
24KB

Download