15f8d74e397725807920e1cada742dcdc6a186b4acb99e3d44d6845787031961

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
27-01-2024 00:46

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General

Target

2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe
Size

36KB
MD5

f84cb5f033657eb5d4b487709d23b289
SHA1

bfc9543260f6fb6c62dc2689eda0c8c04771ef2a
SHA256

15f8d74e397725807920e1cada742dcdc6a186b4acb99e3d44d6845787031961
SHA512

abb5c9aecfb2171ea5283b3e259d6926aa6fe23c6f37c02c09979eadb5f359631faa06e1a3bfa1e59ee2445e02022da0b1bcd2c6177ba2472c9c42b39cf06155
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKg:X6QFElP6n+gJQMOtEvwDpjBsYKg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c46-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c46-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2360	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-01-27_f84cb5f033657eb5d4b487709d23b289_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 2208 wrote to memory of 2360	2208	2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe	28
PID 2208 wrote to memory of 2360	2208	2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe	28
PID 2208 wrote to memory of 2360	2208	2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe	28
PID 2208 wrote to memory of 2360	2208	2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_f84cb5f033657eb5d4b487709d23b289_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2360

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
36KB

MD5
40091c9d165b7189bc516fe72b158d85

SHA1
4a70593435863b4dd1001603e03d72636fb4c39b

SHA256
95d009fe93f43f112ca20c24b2f3827023ed856ff960f36e84766354b1beb310

SHA512
8480d0584bc81f1ec2c4be18429b719b2e68338be53e1db0d4ce0663feefca3c8b2cd0405430b8e782cc2cc7b2032e2add9a4c91553c2a098f7a7e8efc6a2df8

Download Submit
memory/2208-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2360-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2360-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download