3345d43851ca8e0ff56d94ca6812889422a103963c26f4f5c3dcf946e0dfd9fa

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:23

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General

Target

2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe
Size

41KB
MD5

20309665803a62547fee04e56ebdbb21
SHA1

2065d446f8e9dfebef934c2e772a7953b4dde2d7
SHA256

3345d43851ca8e0ff56d94ca6812889422a103963c26f4f5c3dcf946e0dfd9fa
SHA512

ce3b0809ab380299d4367bd9ae26ef065efe3acb06d5ed54c51f8500fbef9ac4654317de43882d41d01adc15e43a872b8c509f0059818fda0660345d9b66f652
SSDEEP

768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETked3z:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_rule2
behavioral1/memory/2872-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2708-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\asih.exe	CryptoLocker_set1
behavioral1/memory/2872-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2708-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2708 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe

pid process

2872 2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2708	asih.exe

pid	process
2872	2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe

description	pid	process	target process
PID 2872 wrote to memory of 2708	2872	2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe	asih.exe
PID 2872 wrote to memory of 2708	2872	2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe	asih.exe
PID 2872 wrote to memory of 2708	2872	2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe	asih.exe
PID 2872 wrote to memory of 2708	2872	2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_20309665803a62547fee04e56ebdbb21_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872

C:\Users\Admin\AppData\Local\Temp\asih.exe
"C:\Users\Admin\AppData\Local\Temp\asih.exe"
2⤵
- Executes dropped EXE
PID:2708

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

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe
Filesize
41KB

MD5
f20f164c7bbfadc371357dcfe5e05238

SHA1
cdbb4e16275104f8fe87d34b161b7e09f76c1d14

SHA256
521327b6f667c74cfe9c079441f45ab05c088dfe38abe56f16cba4c67e2aa9cb

SHA512
52e254eb1e47ccb6ad7fa96f81415c456781292d1f00982badfff1347b053304bd034f826a8e1d79f0798957804a48639bcc78fe6a410a24dd55ffdaf7988664

Download Submit
memory/2708-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2872-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2872-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2872-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2872-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download