7645904afee92f3eebf1859d0666e3574c376fe13b32cb714f88fd7d8ae18ba5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 01:33

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General

Target

2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe
Size

61KB
MD5

b538e24a1ae2ae7562024586b423e99b
SHA1

9aa1bcb27f40c440f0d7ee19d0321b50d2afd446
SHA256

7645904afee92f3eebf1859d0666e3574c376fe13b32cb714f88fd7d8ae18ba5
SHA512

8654b96a11eb15227f7831382f121d7e8965c9fafacd88d3df850be7708deba18c89b8b5e3e994855315f820db6d59bc0b82eb9d3cacc5497b5a655813c20ab9
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEM1:6j+1NMOtEvwDpjr8ox8UDEE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a00000001650c-11.dat	CryptoLocker_rule2
behavioral1/memory/2060-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3044-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a00000001650c-11.dat	CryptoLocker_set1
behavioral1/memory/2060-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3044-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3044-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2060-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000a00000001650c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2060-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3044-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3044-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3044	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	2024-01-25_b538e24a1ae2ae7562024586b423e99b_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 2060 wrote to memory of 3044	2060	2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe	28
PID 2060 wrote to memory of 3044	2060	2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe	28
PID 2060 wrote to memory of 3044	2060	2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe	28
PID 2060 wrote to memory of 3044	2060	2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b538e24a1ae2ae7562024586b423e99b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3044

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
62KB

MD5
0809e60bcb422c102044da4f129fb78a

SHA1
1fef85bfd809f6706f7de8c7eb5d1b3ce1dd3378

SHA256
90220554204a11186b27d86a740e8b0f20868238c9912d2bd5fd96a92ee41d41

SHA512
bd6939460eca025c7c4485b4d8d913c8007e5a326ac84e4b670e99f3946c098a0415ead563625e4451db5eb0312e1d25caa5873af177b7b180297f66ca9a1954

Download Submit
memory/2060-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2060-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2060-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2060-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2060-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3044-18-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/3044-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3044-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3044-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download