905503fee22606bec75f5a85bc29a95373b8e5f270a9ba0cc0531f271b3e6299

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29-03-2024 02:48

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General

Target

2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe
Size

72KB
MD5

49d517232bc9218054fb946ba9a02371
SHA1

55012077ad1c454266b388b7bc9f4cfaf1c6075d
SHA256

905503fee22606bec75f5a85bc29a95373b8e5f270a9ba0cc0531f271b3e6299
SHA512

c00409a59438ffa347efe31f41a72c5f0935e2d24798980c6e1992a53196435e67537082c2fc082c15c239b1268a7542de0aa8f38098b216d487df20ea47085f
SSDEEP

1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KU8:ZVxkGOtEvwDpjcaI

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012253-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2748	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2252	2024-03-29_49d517232bc9218054fb946ba9a02371_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 2252 wrote to memory of 2748	2252	2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe	28
PID 2252 wrote to memory of 2748	2252	2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_49d517232bc9218054fb946ba9a02371_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

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\misid.exe

Filesize
73KB

MD5
b7b7fe3473bf8e4cef9ac046a0698245

SHA1
f6addc9f622bf5e60c2210871bdb47442d6d46e9

SHA256
cdea0bc088aae6d64a91f411c69ec1fd021542f9a85ca7f37de7848d1399671b

SHA512
4da61f921ee434e2b5fa9c1f62e6602b119d36aafbfc81c8f93f5d38b0cab1503f1c604f01f6563956b066f465774d62b7ec82b56f87793f8e869900ac941927

Download Submit
memory/2252-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2252-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2252-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2252-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2748-16-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2748-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download