d86f18ba3c96b84bd1c15e6203a4509f5f8ba164601feb1fad0d2476c1c697cc

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20/04/2024, 18:46

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General

Target

2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe
Size

84KB
MD5

891e737a99cd45ad8eb92c32d4c38bcc
SHA1

7389cdab7279f7270de3cf79d084b124ffb97c68
SHA256

d86f18ba3c96b84bd1c15e6203a4509f5f8ba164601feb1fad0d2476c1c697cc
SHA512

7f7404d6ea19a309aa5ed85648c6123c3a901001cc3df1ffd9ce36f77b3bddddb6f7e1ed6a68f94d8d8591bf0e217aee8a0dac12d43bcfc4bbe69920d545d2bf
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYK:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-21.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014466-21.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2548	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1760	2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_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 1760 wrote to memory of 2548	1760	2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe	28
PID 1760 wrote to memory of 2548	1760	2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe	28
PID 1760 wrote to memory of 2548	1760	2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe	28
PID 1760 wrote to memory of 2548	1760	2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-20_891e737a99cd45ad8eb92c32d4c38bcc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2548

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
85KB

MD5
8a37d549fae9256f13aff36d299fd9e7

SHA1
8dec999eb2f0589ad3c75c9f3edbbeb1d44d4f20

SHA256
16a947a044d61488f21aba6d7eca7c30dda36c27cf5d7056182324bbd0af8c33

SHA512
c1e7a473286e087cc659e749610a23bada78dec92507291c9ad1569164f92aa0e190509eefbea088eef509e757199b3c9993727de54373046ed8ea7ac7b03825

Download Submit
memory/1760-2-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/1760-1-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1760-0-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2548-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2548-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download