1aa8c2c0deb0caffe7999cd1a00867375e79a8b4f0ec6672394d01cb036e23d9

Analysis

max time kernel
10s
max time network
15s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27-03-2024 19:29

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General

Target

2024-03-27_51cb8b58e695f8ef7cff4a95e4486b82_cryptolocker.exe
Size

61KB
MD5

51cb8b58e695f8ef7cff4a95e4486b82
SHA1

a8b8640e055b317b7eb4d8cfe34eb6a104f1e2d3
SHA256

1aa8c2c0deb0caffe7999cd1a00867375e79a8b4f0ec6672394d01cb036e23d9
SHA512

4976ac881cc086bd054014a2412e0c2491815b54d9becc8bfdbba25dd48b10dd14fcf208e62cc9838b4cba5131200194f4bb9e8a39ff1e8cdeda595c4d26570e
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsir:BbdDmjr+OtEvwDpjM8m

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral2/memory/4004-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x0007000000023224-13.dat	CryptoLocker_rule2
behavioral2/memory/4004-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/memory/4004-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral2/memory/4004-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/files/0x0007000000023224-13.dat	UPX
behavioral2/memory/4004-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\2024-03-27_51cb8b58e695f8ef7cff4a95e4486b82_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_51cb8b58e695f8ef7cff4a95e4486b82_cryptolocker.exe"
1⤵
PID:4004
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  PID:1868

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\asih.exe

Filesize
61KB

MD5
a45d9aca585b6450030190b951a9ff7c

SHA1
33030b00c3fc2503c8c9e38419f820e151db91a1

SHA256
68bd56758a73e360278f63119c1f8a23aedd9606a6f97aed9fe8f2310b40cedc

SHA512
ff93cd771f5038f9426d8a0bd6ff07b03d13853c9bbfb8c2d91bd25e7df2c6c2b7734805db6b9954e2e7b7457782d10a8d6a291995fa7ae2784d12faedd2ffea

Download Submit
memory/4004-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4004-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4004-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

Filesize
24KB

Download
memory/4004-3-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/4004-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download