c8a9d09ab93330a5db480ac9409aae687c61951c290e4c9fc38c4409f034695f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 04:35

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General

Target

2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe
Size

70KB
MD5

721309c0247067808e88a43f0d2651eb
SHA1

9cc915295a4bc5ff1fbdad61b5b97af1ea908667
SHA256

c8a9d09ab93330a5db480ac9409aae687c61951c290e4c9fc38c4409f034695f
SHA512

e809674813882d294e8f61e48e9a3dfbe353494ef799b528147474afa0f1c2c1f3af2801e6dd31c6bd7b0765e092a062a770c7c619541e485bc2733fecd159ba
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU509Y:DW60sllyWOtEvwDpjwF85J

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/1460-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012254-14.dat	CryptoLocker_rule2
behavioral1/memory/2792-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/1460-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000012254-14.dat	CryptoLocker_set1
behavioral1/memory/2792-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1460-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2792	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1460	2024-04-24_721309c0247067808e88a43f0d2651eb_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 1460 wrote to memory of 2792	1460	2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe	28
PID 1460 wrote to memory of 2792	1460	2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe	28
PID 1460 wrote to memory of 2792	1460	2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe	28
PID 1460 wrote to memory of 2792	1460	2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_721309c0247067808e88a43f0d2651eb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1460
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2792

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
70KB

MD5
9f570906d41b656bc67cb23a6df604f4

SHA1
e712a0b136b159366b831aeae402bf4cf593ed5b

SHA256
74eec135ee5b342f8e66ac2a730f59d458d80788a1deae959cfd502d0c07d706

SHA512
8ff4223026ae0168c83f97ab5908a53203ccb84885a7a9c3c8f01d8ceafe41f7eb0d5d94a8dda4088e2ef5a79ef892c6914ae26e57e2c24a8fb0b241e5e99776

Download Submit
memory/1460-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/1460-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1460-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1460-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1460-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2792-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2792-18-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2792-25-0x00000000001E0000-0x00000000001E6000-memory.dmp

Filesize
24KB

Download