c281edbcf4d90093063794de02d2b3bad397eea3d977ff98307de773dc54b425

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 10:44

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General

Target

2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
Size

71KB
MD5

0af184dc6d2b5c1a1ea944d7d635fb3b
SHA1

738aec0b7c6fa6186264b082f543d22c64046f18
SHA256

c281edbcf4d90093063794de02d2b3bad397eea3d977ff98307de773dc54b425
SHA512

fc86d679f9138cd8171f33642ff27edf381163c18997ebfc7fcd058f4b9d77b2d7ff218e2b3e892f09a6f8ca07896fe419cb31b06c370455cae33aa4e48580b8
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO2:DW60sllyWOtEvwDpjwF85V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000153cf-11.dat	CryptoLocker_rule2
behavioral1/memory/2504-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000153cf-11.dat	CryptoLocker_set1
behavioral1/memory/2504-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1712-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_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 1712 wrote to memory of 2504	1712	2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe	28
PID 1712 wrote to memory of 2504	1712	2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe	28
PID 1712 wrote to memory of 2504	1712	2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe	28
PID 1712 wrote to memory of 2504	1712	2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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
71KB

MD5
c2da6cf1642b26c9e4eaa04706a7010e

SHA1
3dfe72657331d8a4de8748f2722592bb61cb1ae7

SHA256
3ca6e8320fca4cd2ef3241aee5a678d33c26f800a0d788641d0deda50cbecb0f

SHA512
b79fd7b059b4525e7e7ab72544a8f9c517920ead0f59dd1960868d28e0b7b13b99354ba560ab6b7f71c67f4d8248ea97da23cc233de8c315ee3343d66504d4da

Download Submit
memory/1712-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1712-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/1712-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2504-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2504-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2504-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download