825f5226069ff0a35bfc5eec4e4d296b015e66888f499004f005646ce584e03c

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/05/2024, 04:56

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General

Target

2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe
Size

86KB
MD5

f73d4d6d86b65b1aea85340dc95f55a5
SHA1

c3e11679ac1a754aa497f1141c8b361482b044a0
SHA256

825f5226069ff0a35bfc5eec4e4d296b015e66888f499004f005646ce584e03c
SHA512

b8ad2657b9e817fd032ddb2207206e29d4295a3138b379ef63e42cb88e58a5cf51dda192116ae02e0067bb2a09a556564fc0324492f4e52fec7d32312542f986
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWafHNBl7:vCjsIOtEvwDpj5H9YvQd25

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014e3d-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3004	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1704	2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_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 1704 wrote to memory of 3004	1704	2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe	28
PID 1704 wrote to memory of 3004	1704	2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe	28
PID 1704 wrote to memory of 3004	1704	2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe	28
PID 1704 wrote to memory of 3004	1704	2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-27_f73d4d6d86b65b1aea85340dc95f55a5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3004

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
86KB

MD5
63cdcc25d2dc0e54d324daf8fb1a7f31

SHA1
399d4f94e453801feb1a7f0a79fc265b308360fd

SHA256
6e2b95b263c6ac2ba7346cda33520adc65d2d0e4600432bac2ae9a0281417bb7

SHA512
e737b86eb816816859c9f293576ad5bc564e3f8fbb76c548f09b47253ba8e92de552893e3ed646c3f44b1c64d41247e141e1b8df75b96b4dc4b7d830bcf9ad75

Download Submit
memory/1704-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1704-8-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/1704-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3004-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3004-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download