ffe5ae4e8d5c685e34571b09d78b30712e27416b52b2c36751899bd99d5e3d3f

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
15/05/2024, 07:26

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General

Target

2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe
Size

48KB
MD5

783ab4d27124d15d1c70d87de89a214e
SHA1

db68a8b47233216d0f33d408c3f2d9d8ec9548c4
SHA256

ffe5ae4e8d5c685e34571b09d78b30712e27416b52b2c36751899bd99d5e3d3f
SHA512

56d903946f76445931930f9bed4cb2d2d3f3b3cc47009964d841dcaa64f52b3b19b7b96c26efd8ff9bc8649789d4026f0c9b5fa0bd73e11ec2f884f3d7c109a2
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcM:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1680-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1680-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001228a-14.dat	CryptoLocker_rule2
behavioral1/memory/2724-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2724-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1680-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1680-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001228a-14.dat	CryptoLocker_set1
behavioral1/memory/2724-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2724-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2724	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1680	2024-05-15_783ab4d27124d15d1c70d87de89a214e_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 1680 wrote to memory of 2724	1680	2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe	28
PID 1680 wrote to memory of 2724	1680	2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe	28
PID 1680 wrote to memory of 2724	1680	2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe	28
PID 1680 wrote to memory of 2724	1680	2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-15_783ab4d27124d15d1c70d87de89a214e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2724

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
49KB

MD5
c728bd3213428231e0c2cd101be25481

SHA1
5e73547ade5e23869727db427e6b9e44869db730

SHA256
7492bfc9b38c73a503c7e02d766b7b44070f4a4b660273350280af9bb272f3c4

SHA512
d4231b174d4095079339d81f1582b651c688fc4c87c53bd4f7f375f9167fe120c9ef609f2e7420228cf902198498ab70a2d2e7b9c350388c11ed64704fadd430

Download Submit
memory/1680-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1680-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1680-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/1680-9-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1680-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2724-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2724-18-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2724-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2724-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download