35b7d39e26419a0b274a70df1d0c72a59e1c254b38cf07f396ff018d7cb8a3ef

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
14/06/2024, 07:28

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General

Target

2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe
Size

48KB
MD5

1248cc93d1d816f0eef081387b66fbab
SHA1

8452dbad8e4037f35326348753840155fd4ac9b5
SHA256

35b7d39e26419a0b274a70df1d0c72a59e1c254b38cf07f396ff018d7cb8a3ef
SHA512

24a35dcc77f45e941b5de91bddbfc691669255e132ee05b1add99ae53c27872699ab2bf5be0d5bc12e7149f0916dbf491abbcc98fa1ec1b66a61bec9028d54d7
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvy3SpU1:79mqyNhQMOtEvwDpjBzckqSw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014284-11.dat	CryptoLocker_rule2
behavioral1/memory/2940-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2356-24-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014284-11.dat	CryptoLocker_set1
behavioral1/memory/2940-14-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2356-24-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2356	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2940	2024-06-14_1248cc93d1d816f0eef081387b66fbab_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 2940 wrote to memory of 2356	2940	2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe	28
PID 2940 wrote to memory of 2356	2940	2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe	28
PID 2940 wrote to memory of 2356	2940	2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe	28
PID 2940 wrote to memory of 2356	2940	2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-14_1248cc93d1d816f0eef081387b66fbab_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2356

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
48KB

MD5
14744a3600ce36205b049e3552ea4058

SHA1
43fb8645366a2f10423797c634d33d0df1dfa51d

SHA256
7a575847738e2592973fe7e9a2b47d7beb363fb625ade8a65b20c32d00dd7b1b

SHA512
64082cac653d8b5ed8ca93b54fb0e62ef86e495197b5368b032003ee8e6b8cb68829e85d5f2a750c236f9e9890561219a619c3c077b960f00eef5b99cc3e754e

Download Submit
memory/2356-17-0x0000000000890000-0x0000000000896000-memory.dmp

Filesize
24KB

Download
memory/2356-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2356-24-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2940-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2940-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2940-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2940-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2940-14-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download