7145da7a8998ed008fad69fb18fe37a091709974c6d136cea10c8774e101cdb4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
04/05/2024, 10:40

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General

Target

2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe
Size

38KB
MD5

d2cb171f49a61beab32a68522335a610
SHA1

a1f8526b8ad356c7df79833cdc8c3ee70ebd91ae
SHA256

7145da7a8998ed008fad69fb18fe37a091709974c6d136cea10c8774e101cdb4
SHA512

3a2cb94620202a850d7579d087ff6d9df2104f2a20a95a3f586d43bd38a8955a341eb394ab4447ab3f2279a16d2bcc05bf6cde8f9ae32ff561671388a4052b23
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkYY3:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2172-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1984-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000012334-14.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1984-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2172-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1984-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000012334-14.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2172	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1984	2024-05-04_d2cb171f49a61beab32a68522335a610_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 1984 wrote to memory of 2172	1984	2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe	28
PID 1984 wrote to memory of 2172	1984	2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe	28
PID 1984 wrote to memory of 2172	1984	2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe	28
PID 1984 wrote to memory of 2172	1984	2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_d2cb171f49a61beab32a68522335a610_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2172

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
38KB

MD5
3d717b38cc91fa3f030976e0a5700ab8

SHA1
50471b948bb9f2b32a59a2f69b5822fb73eb6cd4

SHA256
51414e7b1fcfaeb202bc3fade9d18697f36bbb6cad7ed7b099d45e0115a0b959

SHA512
94f3d4917dac89325a5c01eb90e3f7b8cf78b3761b5200baa0ca0badf147bfe5d1ce7e5eb1e18aac16ddf2b123c8767e51e9128855755ca6fc43d5a8e15878fb

Download Submit
memory/1984-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1984-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1984-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1984-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1984-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2172-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2172-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2172-25-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download