0d28a034736ac195ceba1df06ee6129af78fefda5e5dd4b50f0261db17b4042d

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/05/2024, 00:46

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General

Target

2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe
Size

51KB
MD5

e91ffc1aec913f8de0b7e2a1d3118864
SHA1

f89265a005fa7f25763ff6d19d7895c01f0fd7aa
SHA256

0d28a034736ac195ceba1df06ee6129af78fefda5e5dd4b50f0261db17b4042d
SHA512

484c1de436b49bae4bfdfbc8a6d5581e03d92442b0a50a7992cffd1a7517b942a6863a1028bdbaf852ca70105a707e674316bfc01f69d0f6e332f9dab70e0b7a
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZYyv:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLiw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014909-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014909-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1296	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_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 1656 wrote to memory of 1296	1656	2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe	28
PID 1656 wrote to memory of 1296	1656	2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe	28
PID 1656 wrote to memory of 1296	1656	2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe	28
PID 1656 wrote to memory of 1296	1656	2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_e91ffc1aec913f8de0b7e2a1d3118864_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1296

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\asih.exe

Filesize
51KB

MD5
72c4eea74a3e8dd861f3038266596224

SHA1
8e0df6635786ddeda30ff4aa4e1ad42ff61ab64a

SHA256
472a0df376f7c2ad90e1d6e347b179a62efc3263f8cb14210cb20f5784e10608

SHA512
b80d67e8cef951dda8d3b0d14e7fd1b65b9802e0de26a6a7ff830255119efdd180b4b4544dc4e5b50c7a00f7bfee300ee42f2854a55233c59fe60bbdef97b3e6

Download Submit
memory/1296-15-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1296-22-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1656-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1656-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1656-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download