bf3a68016ac4cd3fc1d421c52ed4ca81c20292b85f2ce5a9cec33a07d69dd71a

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 10:56

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General

Target

2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe
Size

79KB
MD5

53eca567ec42ab7c6cb31c42d733b290
SHA1

dd94524edc3206cc730769c2c0216192a973e50a
SHA256

bf3a68016ac4cd3fc1d421c52ed4ca81c20292b85f2ce5a9cec33a07d69dd71a
SHA512

9db83bd2d7990b27e21853203025b4555ead9f7a6394edb2c0ee46939f242d67db21477762b52a5ed07a0549343c82099970d432578b2365e9bbfcd2bbe84ba9
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfWaO2:vCjsIOtEvwDpj5H9YvQd2z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122bf-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122bf-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-05-01_53eca567ec42ab7c6cb31c42d733b290_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 1876 wrote to memory of 2056	1876	2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe	28
PID 1876 wrote to memory of 2056	1876	2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe	28
PID 1876 wrote to memory of 2056	1876	2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe	28
PID 1876 wrote to memory of 2056	1876	2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_53eca567ec42ab7c6cb31c42d733b290_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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
79KB

MD5
f4985b453e275424e5ca9a4a220db86c

SHA1
c1326f367f3ce6d6030c7c13c506feed749ecf24

SHA256
520f35a2e153d1501da96189f5f1bd5cdc389626602978030dafa50d5c39dcd0

SHA512
ab1fb7fe598ba62213ec96a3d7d7ed19236096a13f87e1735ad37abe24ead9079a003c59d4bbcf897472ac619067803709ce75aea058d69f635c1c6634e94848

Download Submit
memory/1876-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1876-7-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1876-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2056-15-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2056-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download