667c2e5182c05bfe7e8173b88c696003b89b808a3469f2c5b89ce6e02bd52461

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 07:27

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General

Target

2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe
Size

49KB
MD5

627e1fbec0f24b814f63eee5ee1f71ad
SHA1

fb112f3589417d4c2d8932f37ff933dbe91c047c
SHA256

667c2e5182c05bfe7e8173b88c696003b89b808a3469f2c5b89ce6e02bd52461
SHA512

01d6eb2220469b070ecb9a0a85f69c38af254d6aac7c5ff85e23766e2a5c526873ae19493ed575fe0f82908abb8f3ccc98e1369c432bf1973ec00309e22b1ddb
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/DpkcAYZG:P6Q0ElP6G+gJQMOtEvwDpjB8WMlf/ZG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2740-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000015cb0-11.dat	CryptoLocker_rule2
behavioral1/memory/2740-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2740-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000015cb0-11.dat	CryptoLocker_set1
behavioral1/memory/2740-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2884-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2884-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2884	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2740	2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_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 2740 wrote to memory of 2884	2740	2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe	28
PID 2740 wrote to memory of 2884	2740	2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_627e1fbec0f24b814f63eee5ee1f71ad_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2884

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
49KB

MD5
9c3df63ca77468416988ce33cd2c0959

SHA1
8d923267c08a9d3d25da1ce9757ef6072fe02fd6

SHA256
fd208dc01735b01dfed61710a767c3b77d92717a1cf68f24a9c2f7e5c158bc6c

SHA512
3f256402f12f3e8d0fbd5802595508fa62ef6b9cce7d3cecfe2673b5e9763dc8c7bfa2a7f92141ae08e70f4ea0a87425b2169a30a1348535ced3904afa026dd7

Download Submit
memory/2740-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2740-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2740-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2740-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2740-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2884-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2884-18-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2884-25-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2884-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download