8d5d2a748d442a3e0cfedce7780901239de5d0a01ecb7cd1445bf0c6899d8325

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 21:30

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General

Target

2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe
Size

126KB
MD5

e17e45031f4a42d91ca290959a56a086
SHA1

ae31cbd3c1468ef550ac7158ce5ac2fda0b453a2
SHA256

8d5d2a748d442a3e0cfedce7780901239de5d0a01ecb7cd1445bf0c6899d8325
SHA512

34c4580395673bbe6ee76fb2ab2b96b3a6df186927bcaffa48899123f734d9d8622457a45467ae8ae2d5bae1094a37c65b6e0ce48989306a84130cc9c3c9119f
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//A:vCjsIOtEvwDpj5H9YvQd2RK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012133-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012133-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2704	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-02-02_e17e45031f4a42d91ca290959a56a086_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 2512 wrote to memory of 2704	2512	2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe	28
PID 2512 wrote to memory of 2704	2512	2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe	28
PID 2512 wrote to memory of 2704	2512	2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe	28
PID 2512 wrote to memory of 2704	2512	2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_e17e45031f4a42d91ca290959a56a086_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
126KB

MD5
e708a22ba487242516e877dfcf94ff7a

SHA1
905bb7b1fe050b260fc5baeee7c8a545378c1992

SHA256
369af340ea9d3a049f464ecf78e11bf54f8bf49b67528d7f7175c6d82e22cf7b

SHA512
bccd6f727182ea2d8eca797ba079ba31f14eecf69604f5b9da4ac9d52fb251a051353d72804358c1a10a7b5d60a6a1ddf8cf0f85b1dc94346d7d9c91a44d787b

Download Submit
memory/2512-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2704-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download