dfe666f4a5d99ceaf7132edc26c5aa50fdea7eea557fc6747db536616a31e674

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
26/05/2024, 15:29

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General

Target

2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe
Size

46KB
MD5

8a52623a2ae0e361207cc0502b827242
SHA1

acc63902d9098917e49f35dd37ff02c5691235b7
SHA256

dfe666f4a5d99ceaf7132edc26c5aa50fdea7eea557fc6747db536616a31e674
SHA512

5644a22be13056e3f4cebf5d215a062659a1a17f69cc4685982f2fb9ad535dcba824141643a877c7a4480a16dd581462e5fe26d0a52c9c9cdb4b41495ec2fa87
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPJ2K:P6QFElP6k+MRQMOtEvwDpjBQpVX1K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2228-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014323-11.dat	CryptoLocker_rule2
behavioral1/memory/2228-13-0x00000000005C0000-0x00000000005CB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2228-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3040-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2228-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d000000014323-11.dat	CryptoLocker_set1
behavioral1/memory/2228-13-0x00000000005C0000-0x00000000005CB000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2228-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3040-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3040	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2228	2024-05-26_8a52623a2ae0e361207cc0502b827242_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 2228 wrote to memory of 3040	2228	2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe	28
PID 2228 wrote to memory of 3040	2228	2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe	28
PID 2228 wrote to memory of 3040	2228	2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe	28
PID 2228 wrote to memory of 3040	2228	2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_8a52623a2ae0e361207cc0502b827242_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3040

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
900964feef5f7722d5a3ce6dea2a57e9

SHA1
bbc3409f31de3263f3bfad829a5ec688bed6a333

SHA256
e14b8e2e2250429b45f663d72a5ba1e088f08d99573169a2d9b740f3c3fee403

SHA512
1601582b4e92a5ce1b64f3e155cd39fad259e1f435bda6c5b9ed517a7154d3813102e164a3dfb8767aa2ec24707c5ecbdddec9648a123872dbe82c73fc076eb4

Download Submit
memory/2228-0-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2228-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2228-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2228-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2228-13-0x00000000005C0000-0x00000000005CB000-memory.dmp

Filesize
44KB

Download
memory/2228-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/3040-18-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3040-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3040-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download