87ef48f1c7428e52149787a99444bef27b593ff5c35cb23297167eb0e529178c

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
16-03-2024 10:44

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General

Target

2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe
Size

44KB
MD5

55425bd23016ed056762c57b53b31f97
SHA1

ca3ca33333c20dde05a1c3995838ffbf3abbed05
SHA256

87ef48f1c7428e52149787a99444bef27b593ff5c35cb23297167eb0e529178c
SHA512

8b99a0b755805f4b9ec5ddc7e9ab27102f4982e01b41689647a11fc2fac2714fdb6f0a223bb831b63cd422284f4a9cbf8877e8dc7791d7579bce239999e61302
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqRoN63:bxNrC7kYo1Fxf3s05rwxbFvN63

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012352-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2760	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-03-16_55425bd23016ed056762c57b53b31f97_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 2956 wrote to memory of 2760	2956	2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe	28
PID 2956 wrote to memory of 2760	2956	2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_55425bd23016ed056762c57b53b31f97_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2760

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\pissa.exe

Filesize
45KB

MD5
5f1ca2b325d9a287f18af6b1e15e1490

SHA1
bde39bf3e73a2c035132162a31d784ac5d91ac3c

SHA256
dbc6d5432b32585fdb7b012b3fde82f6286511eb251d9001d0371f37eaf278f0

SHA512
a72b03fa258604820483dd81d66962447c79418f5eb2b8d1965fd714d8a27456b48ff59b0ade6e0feab1029e0921c4a85a341e16aa000d972c0492047795e88a

Download Submit
memory/2760-16-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2760-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2956-5-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download