f89fc6b52de61e9fea665abf803ccf986937df52212102def45930889cd9ab55

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25/04/2024, 04:29

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General

Target

2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe
Size

47KB
MD5

2a8b59d4988e95293e1fec049b7a1261
SHA1

d41a7d95c5cafda8c7a64e54b3cef08c2f1b6a4a
SHA256

f89fc6b52de61e9fea665abf803ccf986937df52212102def45930889cd9ab55
SHA512

c9c0c9e76dc533d10b2036962cde7ce46b837e479ac2503c0d619aaf937b53192ccc94b82fb12e4854bdeaf095d635aee652a10eec35a87188c6b0dd2f33e17d
SSDEEP

768:P6LsoVEeegiZPvEhHSP+gp/QtOOtEvwDpjBBMLZdzuqpXsiE8Wq/Dpkce:P6Q0ElP6G+gJQMOtEvwDpjB8WMlfe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2384-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000012328-11.dat	CryptoLocker_rule2
behavioral1/memory/2384-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2964-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2964-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2384-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000012328-11.dat	CryptoLocker_set1
behavioral1/memory/2384-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2964-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2964-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2964	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2384	2024-04-25_2a8b59d4988e95293e1fec049b7a1261_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 2384 wrote to memory of 2964	2384	2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe	28
PID 2384 wrote to memory of 2964	2384	2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe	28
PID 2384 wrote to memory of 2964	2384	2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe	28
PID 2384 wrote to memory of 2964	2384	2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_2a8b59d4988e95293e1fec049b7a1261_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2964

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
47KB

MD5
54d027c76f750a1336d25550cfbb0a26

SHA1
4c181c430429ce07815347decd73c86320e9c9de

SHA256
de034630b19595aafcdd75dbb7412226176d42a08ead4aebc154c308068ce9c7

SHA512
75794cc649fb49dc0815db02b89fcb0a32b54779390048c54248cee2929bdc4ad9e140c01562b4ca31c4e0b679877873045af71158e1e9dd99ab05efaed7309d

Download Submit
memory/2384-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2384-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2384-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2384-9-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2384-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2964-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2964-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2964-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2964-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download