4d0228dbf739b2ef679f841c929f1751ca36adcbe99133ea43325f4fdc7904c5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
03/05/2024, 20:42

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General

Target

2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe
Size

61KB
MD5

1392e9e051744c0c81c2a0cd4d8783c5
SHA1

e663e7743b88505f314656079f3e0a30f36161d9
SHA256

4d0228dbf739b2ef679f841c929f1751ca36adcbe99133ea43325f4fdc7904c5
SHA512

ad204f38a87be8698aa6eb7ab29e25e4ec627229bef9ff8861e4143b71499dea9f3c5ec8bac5ea4f81bac770538f83c799f7982d3bae66dea022b8ca1ebaacfc
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9H:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2860-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000012350-11.dat	CryptoLocker_rule2
behavioral1/memory/2860-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2116-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2860-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000012350-11.dat	CryptoLocker_set1
behavioral1/memory/2860-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2116-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2116	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2860	2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_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 2860 wrote to memory of 2116	2860	2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe	28
PID 2860 wrote to memory of 2116	2860	2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe	28
PID 2860 wrote to memory of 2116	2860	2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe	28
PID 2860 wrote to memory of 2116	2860	2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-03_1392e9e051744c0c81c2a0cd4d8783c5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2860
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2116

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
61KB

MD5
fe40974582912ebb75c96137c0406449

SHA1
8902e82026e432ed7a0d4f60ad864b48e2a0284c

SHA256
79124f7bc8241486e6dac9fb585e4981eaca65b10cee0c2ef5421742db11fa16

SHA512
c00d288e7719dfbb0a5a1be2d30c7aaf55d34eee8724fb2200cde83c28cf5367442e5fc2d686b187473f3f3448d62fdd0a6dc6db6ab80313bd8be2bc110e9d62

Download Submit
memory/2116-17-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2116-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2116-24-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2860-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2860-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2860-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2860-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2860-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download