dee29fc2ac6a3714f9191342d03770154bbcaeb872a2e67c0b253fccb290dc3d

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 04:31

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General

Target

2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe
Size

36KB
MD5

55f1ab83a1a25b49f8928190cc67d2ed
SHA1

5dd1d93eb355d4e91ad07ffc56d459bbdbd85a88
SHA256

dee29fc2ac6a3714f9191342d03770154bbcaeb872a2e67c0b253fccb290dc3d
SHA512

d4ab253bd7bb66f6ae6d31907566437efeea6508578c75084b775cd74505f07f8a57f46437ba52666a59b1a72a28232616ecc86dc29deff0e4a31b9c4c68c62f
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3r:bxNrC7kYo1Fxf3s06g9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122c4-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1424	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2204	2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_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 2204 wrote to memory of 1424	2204	2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe	28
PID 2204 wrote to memory of 1424	2204	2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe	28
PID 2204 wrote to memory of 1424	2204	2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe	28
PID 2204 wrote to memory of 1424	2204	2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_55f1ab83a1a25b49f8928190cc67d2ed_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:1424

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
36KB

MD5
a387bfdf4cdfb71c1aa7dce76e06f584

SHA1
cab5231b05a3e5278335691039c3f2ab9d14f30c

SHA256
92f06bbbfdbd365d28aaab55802ac7b2b85a94735fccb930f104e724d5f4e5e0

SHA512
dea1ced70be139e6cf69659fac895e6c7fa17b5f0d65fbf533e9b2ecd8c7a1ded791d0f7cd352b44ddab5977e6c1983d6f2c0d934dc6870434b10a65173c0230

Download Submit
memory/1424-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1424-22-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2204-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download