79a498a796d2f7a93434cd17ada2af8addb8e2f47f8616dd40bad2f71f5a7450

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13/02/2024, 05:27

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General

Target

2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe
Size

37KB
MD5

1667ee4cd77cd908f7889919514688a1
SHA1

0f65943b22b89fc00a9357e9c877860b3934925b
SHA256

79a498a796d2f7a93434cd17ada2af8addb8e2f47f8616dd40bad2f71f5a7450
SHA512

60ffe361be3433dc22de2d7ef121ea5d988e3c7bee00bfec6462560793db60d517d0c5bfc68961f40d829c01021f7de235f37ff24a713db3b98bb369a7a73329
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkLUAp:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2868-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000015c71-14.dat	CryptoLocker_rule2
behavioral1/memory/2172-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2868-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000015c71-14.dat	CryptoLocker_set1
behavioral1/memory/2172-24-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2172	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	2024-02-13_1667ee4cd77cd908f7889919514688a1_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 2868 wrote to memory of 2172	2868	2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe	16
PID 2868 wrote to memory of 2172	2868	2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe	16
PID 2868 wrote to memory of 2172	2868	2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe	16
PID 2868 wrote to memory of 2172	2868	2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe	16

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
1⤵
- Executes dropped EXE
PID:2172

C:\Users\Admin\AppData\Local\Temp\2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-13_1667ee4cd77cd908f7889919514688a1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2868

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
37KB

MD5
c8d0dfd7793318f2f832c4e68a0103cc

SHA1
c497873425eb295accb898708173d4b5d58bf9e1

SHA256
13021eae4655b191fb75148beecbc36f757623141e1094b5a300fdaab260e0f7

SHA512
23f762e96a1c9fe39a401cd69c72c239ca10380dc5f31edf94d5bec0a456aac5c8f40ccac96a5ce75a2a6044af503dbd01fc077a7bcc8bfc8677a431db7bf4a5

Download Submit
memory/2172-23-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2172-24-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2172-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2868-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2868-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2868-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2868-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download