d06a3c727ddcb990176927874132dcdd6143cff44695f606540cc9d7c12041b0

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 17:34

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General

Target

2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe
Size

146KB
MD5

471d53fe701869fedf68910e1d0db319
SHA1

87c5c57ebe8a20d750aad16fda26db3fd572511c
SHA256

d06a3c727ddcb990176927874132dcdd6143cff44695f606540cc9d7c12041b0
SHA512

97a955ec6820dcf1e2d79fedafc44918dafd9d0abcf968628c906a5e3ee1002884df4782ec99c45587316572ec249d13ad596682c649d84a5eee3274ec3be8f7
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbxGYQbxGYQbPlooHPPFyL:V6a+pOtEvwDpjt22a

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001224c-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1784	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1592	2024-02-22_471d53fe701869fedf68910e1d0db319_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 1592 wrote to memory of 1784	1592	2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe	19
PID 1592 wrote to memory of 1784	1592	2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe	19
PID 1592 wrote to memory of 1784	1592	2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe	19
PID 1592 wrote to memory of 1784	1592	2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe	19

C:\Users\Admin\AppData\Local\Temp\2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_471d53fe701869fedf68910e1d0db319_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1784

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
147KB

MD5
cff46c00097feb7cf07c4da514a8efc4

SHA1
b3af3fef36d88b9476be66a45deaf874439a61ba

SHA256
08954d9d0228519bc61ea8f51cca42a7dae8c63bfd14ec4242e46d1a8f6b9c7e

SHA512
2f75c9f156e41b502b715891f5490ae0587a8f30720b2d7664eba5b61859558005b4b92e33ac6121404187b2c4e35f40eb0a828a49874903ab1f8a5e1028a696

Download Submit
memory/1592-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1592-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1592-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1784-15-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/1784-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download