d37b655d2f5c08cb58b952b46f0a408f0c873aa29b01066bfa4666b75527b280

Analysis

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

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 04:42

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General

Target

2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe
Size

63KB
MD5

25af61c2c2d2512b357ba3bceb2fb7ee
SHA1

285f4e6466ba369416466ee52186ab00ace307ee
SHA256

d37b655d2f5c08cb58b952b46f0a408f0c873aa29b01066bfa4666b75527b280
SHA512

76bbb3fa2aab2f605b6eea5ce816884223fff4891fe2e567771ef35646fa01c129439a235e38d8966bc31c0434065f61ba88c64db54a96e66b673dde80d352d3
SSDEEP

768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG95:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWBS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2876-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c000000015653-11.dat	CryptoLocker_rule2
behavioral1/memory/2944-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2876-16-0x0000000001DA0000-0x0000000001DAB000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2876-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2944-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2876-1-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c000000015653-11.dat	CryptoLocker_set1
behavioral1/memory/2944-17-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2876-15-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2944-27-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2944	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_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 2876 wrote to memory of 2944	2876	2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe	28
PID 2876 wrote to memory of 2944	2876	2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe	28
PID 2876 wrote to memory of 2944	2876	2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe	28
PID 2876 wrote to memory of 2944	2876	2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_25af61c2c2d2512b357ba3bceb2fb7ee_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2944

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\misid.exe

Filesize
63KB

MD5
0d3b8215948db6ba4c09767ba352f2e8

SHA1
dc2a349376d8d2bc5813ab951f67432dfb506edc

SHA256
b143af2069973e9d3d3fe30f4c595a81234e81a48a4947f11feff6e8f7ba2829

SHA512
1943a2276bc708751f198e0fda1b1f79a6672d22c7ef0969472e8dfeadacfc048d3f8f65567f1714c8e633ed773ac83d5e41f66ff429cfbbde3895743065777f

Download Submit
memory/2876-0-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2876-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2876-9-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2876-16-0x0000000001DA0000-0x0000000001DAB000-memory.dmp

Filesize
44KB

Download
memory/2876-15-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2944-17-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2944-19-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2944-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2944-27-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download