22a97b0059c17b5f1d1030cfe15c60bd1400f249cbc8d7daa9e35d83ea1136ae

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 17:27

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General

Target

2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe
Size

48KB
MD5

21fe39a99c04aaceb5a9b4aaf2b13be8
SHA1

6b8c486e338a946586d4b6e7f6082898e625386e
SHA256

22a97b0059c17b5f1d1030cfe15c60bd1400f249cbc8d7daa9e35d83ea1136ae
SHA512

d039d247df5cb786720bcd50657e5b01aa65bb5034e4ad76dd7b0607ff7270931f276b8ab8948ca817c81e3fd12f7b4453dc5580c44759e972e3c90d3dee1bd5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZU1:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012248-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2180	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_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 2200 wrote to memory of 2180	2200	2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe	28
PID 2200 wrote to memory of 2180	2200	2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe	28
PID 2200 wrote to memory of 2180	2200	2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe	28
PID 2200 wrote to memory of 2180	2200	2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_21fe39a99c04aaceb5a9b4aaf2b13be8_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2180

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
48KB

MD5
ec62710c9c22a2790f15c6e7583e8046

SHA1
f26bb78777e4c67118413b80a01d123a4e804f16

SHA256
a4ab7276c49b8374357114e1664571dbddf16f931cbc9e5787277182002aff01

SHA512
32f7d207662471a809805e238062e8b7b71eb6aa763d2065329d17c2dac81d639c90151ea61192e6d5c8f6a91533511279e1de2cce96f4f7a1ad1e56090eb03b

Download Submit
memory/2180-16-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2180-15-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2200-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2200-5-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download