ff07908e76d9d6921aabb1ea7e0b07c70552b75baf748cb2934e27d2de6b4bf5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/05/2024, 04:12

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General

Target

2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe
Size

65KB
MD5

f0b7e0fca7ee36b5ed8245e1bc283218
SHA1

f6db6b53b8a965a79389332cad576e70df884ae3
SHA256

ff07908e76d9d6921aabb1ea7e0b07c70552b75baf748cb2934e27d2de6b4bf5
SHA512

5952186ec097bb3187d531ec64b496b4923382a25e29ef277133ac2d39b880bf9558bf0af1d84ce943e7b15ac9627db8aa010c9e10c1fdb05c1f598987b2b7d0
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsij+:BbdDmjr+OtEvwDpjM8P

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2440-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000012250-11.dat	CryptoLocker_rule2
behavioral1/memory/2440-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2504-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2504-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/memory/2440-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2504-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2440-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000b000000012250-11.dat	UPX
behavioral1/memory/2440-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2504-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2504-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2504	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2440	2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_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 2440 wrote to memory of 2504	2440	2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe	28
PID 2440 wrote to memory of 2504	2440	2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe	28
PID 2440 wrote to memory of 2504	2440	2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe	28
PID 2440 wrote to memory of 2504	2440	2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-24_f0b7e0fca7ee36b5ed8245e1bc283218_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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

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Downloads

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

Filesize
65KB

MD5
1d6d325cf239c65ce66599d95abce9e1

SHA1
207f0911cb833f5fb7bcdd2b616c9acee0cc794b

SHA256
8149d5ebddc390d5422a4c56328c320f0afdcb93a54b197f202a86fd52542134

SHA512
1b234ea79b309353cdffc6fd481c427f1e528d5b05cfeb2e5bae70b79172f335dca32d671617550a4932a16a9aaf694b7a71a9567ebd8413269e160fdaf4f502

Download Submit
memory/2440-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2440-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2440-2-0x0000000000610000-0x0000000000616000-memory.dmp

Filesize
24KB

Download
memory/2440-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2440-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2504-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2504-19-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2504-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2504-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download