638db3fee9f051eb950c7a72638d924fed36b3c4189ff8cdd7e92869ce9739f9

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/05/2024, 05:33

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General

Target

2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe
Size

50KB
MD5

aadf20ce2229ee42dda6b1829a396918
SHA1

770e5959c55a6b5d60c1104d971643006141d726
SHA256

638db3fee9f051eb950c7a72638d924fed36b3c4189ff8cdd7e92869ce9739f9
SHA512

ca85cc4014f0e8b943294e98dcb8fc9b46526f70c3bd9972b9bad97d4511a231f462a64c29abe128b741db6131144b792191e443e01844323640bb08c22faa30
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZYO:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLiO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015653-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000015653-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2944	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-05-10_aadf20ce2229ee42dda6b1829a396918_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 2872 wrote to memory of 2944	2872	2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe	28
PID 2872 wrote to memory of 2944	2872	2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe	28
PID 2872 wrote to memory of 2944	2872	2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe	28
PID 2872 wrote to memory of 2944	2872	2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-10_aadf20ce2229ee42dda6b1829a396918_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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
50KB

MD5
b7a5bf52f5c012569edd27dcd8e01455

SHA1
0f5f92e64aa16670b9961f84867fbddd00410447

SHA256
8f5812aaf3e3a0b6579d1318b052d41ea44c4bb316b9324253f11650e1d4330d

SHA512
db837abbeeea269f8a817314b18ca45a4fa1347bfb37ee5afe0944e32b6a0e90735a49ad5d641d96c424339379cf424fcfc4e52044310e442af593018493b6cf

Download Submit
memory/2872-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2872-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2944-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download