d62c6030cccf470d6dc03f969aaf8eaf82c6c3680bcc69142141ccc23128fd73

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
21/04/2024, 04:38

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General

Target

2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe
Size

46KB
MD5

e5a1280f649da9528aa31809e491c347
SHA1

9a7cc7c834a0413d5c7cc78eb9ffb2528fdd5ad7
SHA256

d62c6030cccf470d6dc03f969aaf8eaf82c6c3680bcc69142141ccc23128fd73
SHA512

e99a8316cf56e2b224c1ccbefff1c666662ec471667f0e5e3f926edcc50dc306a80b715bfd6ea13d1ff9bb2d28c5a6a6ea84dc0eedbff1d7a1d174fec9b38359
SSDEEP

768:79inqyNR/QtOOtEvwDpjBKccJVODvccwDFUu:79mqyNhQMOtEvwDpjBzck1Wx

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2064-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_rule2
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2064-13-0x0000000000690000-0x000000000069F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2064-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001220d-11.dat	CryptoLocker_set1
behavioral1/memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2064-13-0x0000000000690000-0x000000000069F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2680	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2064	2024-04-21_e5a1280f649da9528aa31809e491c347_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 2064 wrote to memory of 2680	2064	2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe	28
PID 2064 wrote to memory of 2680	2064	2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-21_e5a1280f649da9528aa31809e491c347_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2064
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2680

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
46KB

MD5
aab04f0c11a5601589d9c596c0fd92eb

SHA1
61de610398045ca17a2337333d54e4604e557748

SHA256
2857939435516db4cee7a399ad86b646484c51cf4c3d37fa915b53c72486b4d7

SHA512
98809e58078369735baf8fd815e63a84a59bc762014c11dccfb4e2c404dba2bd90790eebeee02537ee5291102dc5aba9a634331de4eff572af8e3ebaf9e125fd

Download Submit
memory/2064-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2064-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2064-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2064-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2064-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2064-13-0x0000000000690000-0x000000000069F000-memory.dmp

Filesize
60KB

Download
memory/2680-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2680-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2680-21-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download