e208b0ba54f6e6d77011721ce31f9a619a20c970048525d05a93ae4a8524402c

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
14-06-2024 09:44

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General

Target

2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe
Size

71KB
MD5

6992c1e9dc6ec2a7604b6dbf633b0c4b
SHA1

3e0c6abd1d5bb0b6e018c56f7f10d35617ac7720
SHA256

e208b0ba54f6e6d77011721ce31f9a619a20c970048525d05a93ae4a8524402c
SHA512

0cf3e048e34004fb1ff8be65143ae579e64d51088c0c354e5cf2aa3c36b8affeb8eae527630fbe50a2ee2c149b1fe73c84b9df5753073b815aa83f2d9e03b9f3
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO/:DW60sllyWOtEvwDpjwF85Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2944-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000500000000b309-11.dat	CryptoLocker_rule2
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-15-0x0000000002A80000-0x0000000002A8B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2944-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000500000000b309-11.dat	CryptoLocker_set1
behavioral1/memory/2944-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-15-0x0000000002A80000-0x0000000002A8B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2960	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2944	2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_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 2944 wrote to memory of 2960	2944	2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe	28
PID 2944 wrote to memory of 2960	2944	2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe	28
PID 2944 wrote to memory of 2960	2944	2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe	28
PID 2944 wrote to memory of 2960	2944	2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_6992c1e9dc6ec2a7604b6dbf633b0c4b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2960

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\asih.exe

Filesize
72KB

MD5
1e43cfa251c7e21a496c213faef78a97

SHA1
c9e27d7c0a0f567167dec9387392617e8e1017cb

SHA256
f495b550e8ae7b3a63fd6841b7de4bdc02354dc25221623b35b6d1edbaa965f4

SHA512
d1f85c8e1d41ac324d05ddabb490529071cbf2a128c3e47055c8b084293327b004bc3407fb7576fa22e5ab7725ff493848ad304ab2c1276df488d5e0acef17c7

Download Submit
memory/2944-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2944-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2944-3-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2944-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2944-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2944-15-0x0000000002A80000-0x0000000002A8B000-memory.dmp

Filesize
44KB

Download
memory/2960-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2960-25-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download