6f2157c93d0f62a92d8810159c07b87d2b720dfedd08ea3d0775b77c7ca8e9a5

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 08:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe
Size

47KB
MD5

16da4139cbef4bb75b12f9534f7c3797
SHA1

b21d6e5c31b0104afe5ccea03ddac29dd67832ef
SHA256

6f2157c93d0f62a92d8810159c07b87d2b720dfedd08ea3d0775b77c7ca8e9a5
SHA512

7e3f66ca29931320b4411dd89b993db548aa0e54424c2b3e25431bda61b9b147934d03c2a30e463e433a0d577f1bcde08fcf976fae17f28a6bafc6aaa9934bb5
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkc8d:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_rule2
behavioral1/memory/2964-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2988-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b0000000121c5-11.dat	CryptoLocker_set1
behavioral1/memory/2964-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2988-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2964	2024-04-16_16da4139cbef4bb75b12f9534f7c3797_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 2964 wrote to memory of 2988	2964	2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe	28
PID 2964 wrote to memory of 2988	2964	2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe	28
PID 2964 wrote to memory of 2988	2964	2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe	28
PID 2964 wrote to memory of 2988	2964	2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_16da4139cbef4bb75b12f9534f7c3797_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2988

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

Loading Replay Monitor...

Downloads

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

Filesize
47KB

MD5
319a56554d9a7b4bef4281e538e36dae

SHA1
b68ed4878ee6252f2d5b4e4df4c8666cb179c1d9

SHA256
5e1956afa750af1d51b7b64488ff396f726931c2bdf85115ab9a4c8a4abf865c

SHA512
018b3f2aabc1bddb97e4a7db1a19af7cffec4f1339240a59cb4827e28be09596d87c0ada2179989712c1f18b49cc7ed6584c0ebb304e4d585acd61c7020dc88b

Download Submit
memory/2964-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2964-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2964-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2964-4-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2964-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2988-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2988-19-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2988-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2988-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download