ac388de0ae5999c4bd5755b0cfd262451f7026e3a9634c4c7b7b03931cbbc1fb

Analysis

max time kernel
150s
max time network
176s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 23:33

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General

Target

2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe
Size

43KB
MD5

f11b7aa1d782019f8005767227101a6b
SHA1

03c77e80f90eb2f67b6146ad8e50d012a4240a46
SHA256

ac388de0ae5999c4bd5755b0cfd262451f7026e3a9634c4c7b7b03931cbbc1fb
SHA512

5dd5443122fc892e33e1a19ef6eebd5f86c9e42712ad0165b5d20286d756bdbb1b8255b5e418e0b53ca2cd38c5a9f616db7241eda3779a8e23b6312d151d3960
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Ylmbk:bgGYcA/53GAA6y37QmY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2844	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2396	2024-01-18_f11b7aa1d782019f8005767227101a6b_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 2396 wrote to memory of 2844	2396	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	28
PID 2396 wrote to memory of 2844	2396	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	28
PID 2396 wrote to memory of 2844	2396	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	28
PID 2396 wrote to memory of 2844	2396	2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-18_f11b7aa1d782019f8005767227101a6b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2844

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\hasfj.exe

Filesize
44KB

MD5
0794b54fa18ba119169ee2571ecbba02

SHA1
7fa7a6bbea2d28e94e2661472eb9045cda26ba81

SHA256
78318653d0b0c3979d6d83614b5ef9f889cb8fde9fca62609146cada92f09bac

SHA512
38be532e2f049082be20e96965a75d77e28f950008ecf23939d543077ca687f4cce2f01a5f295da528490090f374a81c65a68c0a203f702951375c12babafa02

Download Submit
memory/2396-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2396-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2396-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2844-15-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2844-19-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download