084b115221560c1236205ea3c7ce2c3362ca95a8014125d29a92e52630369843

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
29/01/2024, 16:07

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General

Target

2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe
Size

68KB
MD5

eecc2fb5e65f67a84f777696b7bf6a19
SHA1

afafb33819c91edb7e80f3250f1cdebc67556dba
SHA256

084b115221560c1236205ea3c7ce2c3362ca95a8014125d29a92e52630369843
SHA512

dfb703fac2035db5fa4519207580dec07e034c108fdd82708717d47cf4d520abc154cb6e63dca435b3e17a2db5e983967dce04653c4cb4f3bfd93aebc0663216
SSDEEP

1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKU9:DW60sllyWOtEvwDpjwF85z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2404-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3012-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2404-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3012-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2404	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3012	2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_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 3012 wrote to memory of 2404	3012	2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe	28
PID 3012 wrote to memory of 2404	3012	2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe	28
PID 3012 wrote to memory of 2404	3012	2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe	28
PID 3012 wrote to memory of 2404	3012	2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_eecc2fb5e65f67a84f777696b7bf6a19_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2404

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
68KB

MD5
a9535b839377bd58632fecdae607e38b

SHA1
5784e845116a8416bcdeb8d43f215e240e53d495

SHA256
a6f3a1e2f599e2cc1a1c1a1b5852ab8e127f4fd1aca490b01f50768a198829f3

SHA512
5629cb71a83a0e7daaf6f0ac362406443725e019cf02c3a6931772712d193b2fcd4a861eae4109c6e3925fbee99779b6e7f6702411fa6fccfb852ace4f8fddd1

Download Submit
memory/2404-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2404-19-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2404-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3012-0-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3012-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-2-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/3012-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/3012-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download