98dcd3f90ed713f0576f20c15529c9c0e1c05b556d3ccdf89bb2749e93e835c3

Analysis

max time kernel
150s
max time network
141s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 06:25

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General

Target

2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe
Size

68KB
MD5

0029d651de8c092079fe5de9cb44ab4a
SHA1

323d53d8e809e2215b5670fcdc74e76cda406310
SHA256

98dcd3f90ed713f0576f20c15529c9c0e1c05b556d3ccdf89bb2749e93e835c3
SHA512

6493e3c838de63d704c039c16086b6846988cd91acdb291306c78ca1dfd39df63c46675e95a518fdaf3eb296fba3fc6ddab22c2c6d3bbe0e9fcc039e2005b968
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUH:DW60sllyWOtEvwDpjwF85Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2300-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c0000000122f2-11.dat	CryptoLocker_rule2
behavioral1/memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2300-14-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c0000000122f2-11.dat	CryptoLocker_set1
behavioral1/memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2800	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-03-28_0029d651de8c092079fe5de9cb44ab4a_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 2300 wrote to memory of 2800	2300	2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe	28
PID 2300 wrote to memory of 2800	2300	2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe	28
PID 2300 wrote to memory of 2800	2300	2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe	28
PID 2300 wrote to memory of 2800	2300	2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_0029d651de8c092079fe5de9cb44ab4a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2800

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
68KB

MD5
6e119ef40a80614fabe32fd506d7c4f5

SHA1
e8f6c296b1647231564a358d39987826e25cffc7

SHA256
e01f33cfbe97aa47881cf5928349b6eab902aaceff3bdb733bb65a513635cdb0

SHA512
74117b38021af8da503b8babb5ecbc26a78212ad1583cd39fe905a8dbcf7933f3d9c712f32a8622ae9a1d6530a053084d5cd34efaa56be439ebc0006e95c9f3b

Download Submit
memory/2300-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2300-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2300-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2300-14-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2800-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2800-18-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2800-20-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download