9a361eab8dfdf612f22a20bc2b51bff4cf3e5644ca4480ed7542810d1e89fd50

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
14-02-2024 07:34

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General

Target

2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe
Size

69KB
MD5

4719986590c98ad7be4e61022cc6a549
SHA1

7ea69783aa4cd54e6642c071d414c5bfc7ef0174
SHA256

9a361eab8dfdf612f22a20bc2b51bff4cf3e5644ca4480ed7542810d1e89fd50
SHA512

47fbef659525aa744518ec6ee9d30c6a968ef9ed78194b2a056253206645aecc7ac71ef6b86049f9d3b53a09773ce19f4b1e3a4a7d713b4ada3d4ea19801bb0b
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNM:DW60sllyWOtEvwDpjwF85I

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2192-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001226e-11.dat	CryptoLocker_rule2
behavioral1/memory/2192-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2816-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2192-13-0x0000000001FE0000-0x0000000001FEB000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2192-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001226e-11.dat	CryptoLocker_set1
behavioral1/memory/2192-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2816-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2816	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	2024-02-14_4719986590c98ad7be4e61022cc6a549_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 2192 wrote to memory of 2816	2192	2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe	28
PID 2192 wrote to memory of 2816	2192	2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe	28
PID 2192 wrote to memory of 2816	2192	2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe	28
PID 2192 wrote to memory of 2816	2192	2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-14_4719986590c98ad7be4e61022cc6a549_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2816

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
8b11b65f57084bae3f41f4cdd80e390c

SHA1
be9d257a3b0a9cc3df50638187fcafe71199b69b

SHA256
75eef8576d26b70277f939627dbd6724ada810f89962ed177e26b048cea499fd

SHA512
e501f600e6d8d69c10d391bf0b043e242c2c1171f8575dfdf95090782bbf62e280ea6c05459d28ff6813c3605b8864c6c3f1123231bf347995653c0f7ea785ae

Download Submit
memory/2192-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2192-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2192-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2192-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2192-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2192-13-0x0000000001FE0000-0x0000000001FEB000-memory.dmp

Filesize
44KB

Download
memory/2816-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2816-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download