0625daa264e5248023dcb1650620c492bc6a64fa3a4722c3be361eca774aa16c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 09:38

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General

Target

2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe
Size

69KB
MD5

e551b36c9e613e67f2927a52a05daca1
SHA1

a246889746e714323033b4e8d505ffb04e250388
SHA256

0625daa264e5248023dcb1650620c492bc6a64fa3a4722c3be361eca774aa16c
SHA512

8ee0c8ae507c949f9a9b3e089834ea0dba1dd62b81c98632a72eab2b088ac6a378a022a4dc22bfbe23df0fef35fae7c63f71007aa11744ed24ecfe32f6fba7c5
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUHLS:DW60sllyWOtEvwDpjwF85k

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1196-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/1196-13-0x0000000002840000-0x000000000284B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1196-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1432-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1196-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/1196-13-0x0000000002840000-0x000000000284B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1196-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1432-18-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1432	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1196	2024-03-06_e551b36c9e613e67f2927a52a05daca1_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 1196 wrote to memory of 1432	1196	2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe	28
PID 1196 wrote to memory of 1432	1196	2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe	28
PID 1196 wrote to memory of 1432	1196	2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe	28
PID 1196 wrote to memory of 1432	1196	2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_e551b36c9e613e67f2927a52a05daca1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1432

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
69KB

MD5
ed54c82250df81480c74d471a5ad2be2

SHA1
443bb62579a66242e9c4c0001a527e0d29ec8f28

SHA256
253113642e91d2fed1876a5c73c61a0fb82b8aab3f0bd25d8c95e83ca229bcba

SHA512
5ccddab6561ab9ea4614ef18908c0f550d97524f87ccd57e34adba4574add95b60724b52410849e0aa433e9d279e2179fb885b5f7889820f6f075bb0f11e5248

Download Submit
memory/1196-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1196-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1196-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1196-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/1196-13-0x0000000002840000-0x000000000284B000-memory.dmp

Filesize
44KB

Download
memory/1196-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1432-18-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1432-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/1432-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download