447fa5d653043c5d899ba62f2f7c01aeca271e0bac4617a9cdcbb7e007919af8

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 05:23

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General

Target

2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe
Size

40KB
MD5

08b542d583c7535096c342592c4950a0
SHA1

106e825f99144f94aee24adfa65924f109c84f6a
SHA256

447fa5d653043c5d899ba62f2f7c01aeca271e0bac4617a9cdcbb7e007919af8
SHA512

94c239c262ba928d24d6bb7e5f3e8762cb087714989017364685572e0782d21dbe42e8d20b37ed89c9524af6d6dfb713223f00c28a995d60ec53b8b06b342cb1
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLmWO9:ZzFbxmLPWQMOtEvwDpjLeUHO9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2680	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2760	2024-02-19_08b542d583c7535096c342592c4950a0_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 2760 wrote to memory of 2680	2760	2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe	28
PID 2760 wrote to memory of 2680	2760	2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe	28
PID 2760 wrote to memory of 2680	2760	2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe	28
PID 2760 wrote to memory of 2680	2760	2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_08b542d583c7535096c342592c4950a0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2680

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
40KB

MD5
e39423e3d34311429554492f04117cc8

SHA1
e957e1727b02bcdd4fffbf184198951786a39630

SHA256
13e759683e9743ca6c804919dc722e8d6130dd11e716e612e214f6829a14789e

SHA512
a769732d603ec7d30c097f36f4f87059753c2d26aa4d17d4f31a455cfadef45489549d7211d8618cc2e9d73db01cc1ebc3f98947f957cd3a3de28dc8c82ab29f

Download Submit
memory/2680-15-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2680-17-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2760-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2760-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2760-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2760-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download