bffe6c94aa1463628f34a050fcd3dda400d594b45acfbbc9ab98975eb79283e8

Analysis

max time kernel
144s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
26-04-2024 11:04

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General

Target

2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe
Size

35KB
MD5

a6392a45051323be8ac1d00f56b9a0ee
SHA1

54ae62354b89d851b3787a8289e20c30d2d05dbb
SHA256

bffe6c94aa1463628f34a050fcd3dda400d594b45acfbbc9ab98975eb79283e8
SHA512

229d56edf198e1194f6d7b4f32e1194dd8f96ecd428b9220d4189eaa46b8f6a732fc417e8f02b8dbdc0963b6c0a5150b55b56f3aa7606b58084697e1a9333119
SSDEEP

384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+uspNL:bAvJCYOOvbRPDEgXRc+BAILYL

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012301-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2144	demka.exe

Loads dropped DLL 1 IoCs

pid	Process
2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe
2144	demka.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2144	2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe	28
PID 2284 wrote to memory of 2144	2284	2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_a6392a45051323be8ac1d00f56b9a0ee_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2284
- C:\Users\Admin\AppData\Local\Temp\demka.exe
  "C:\Users\Admin\AppData\Local\Temp\demka.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2144

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\demka.exe

Filesize
35KB

MD5
e199a8759166b84990ce96a62c95cd40

SHA1
6f5fa37d468a025d0fc8c8eff918ee000560747f

SHA256
917966db6794894288c4580892f763f2ad75d655c4d53e36fedc71012e8e71f1

SHA512
cd4b24b82dc69553390b68f451c0f5b02566b411a9bc8c8278b2ccda95896622d37d3b8a90c8805771b759a78f9353b04a2407ffc138c4a4874b8540300146b5

Download Submit
memory/2144-23-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2284-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2284-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2284-8-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download