f6ccd4abf53500b30c7a8a74ec05c83cc30556bbc5743cfe2857ad9c205c8694

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:34

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General

Target

2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe
Size

48KB
MD5

48ddf213be040e5c67c1232b5751eafd
SHA1

bdb57d0e229b22ed50329a42c49cc8ab92c450b8
SHA256

f6ccd4abf53500b30c7a8a74ec05c83cc30556bbc5743cfe2857ad9c205c8694
SHA512

53f79c1b4b8043b527abdf21fb5a6135174adf1acceb18f93934cde02bb5b2175a85f6049ca9b8d10019dc468ed1d4e11bbc06087c221d258675dc998a7fdc2d
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcH:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfH

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2884-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2388-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2884-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2388-25-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2388 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe

pid process

2884 2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2388	asih.exe

pid	process
2884	2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe

description	pid	process	target process
PID 2884 wrote to memory of 2388	2884	2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe	asih.exe
PID 2884 wrote to memory of 2388	2884	2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe	asih.exe
PID 2884 wrote to memory of 2388	2884	2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe	asih.exe
PID 2884 wrote to memory of 2388	2884	2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_48ddf213be040e5c67c1232b5751eafd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2388

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
48KB

MD5
d06480bab24bf019ca7420d43c81a525

SHA1
22b7e586e7be25d4412f1826598b747d3cd482ef

SHA256
e0db56bb8492b53f338cd8c4531ce095364e5368fbe82177ca4ce85342b0d490

SHA512
7ea9a5ecded998147559d16021c95adc4bd49489d10c7322603a342ab497e4a9c7a7cf13478e016fcf37decd9fe77b9cc08cbe3bcbb36d10f2adf354dceced64

Download Submit
memory/2388-25-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2388-24-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2388-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2884-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2884-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2884-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2884-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2884-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download