4aa4d9029a7fa0f80bd40ad462c1e295338822ec91f18a3497d04396c0e2ffe9

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
27/04/2024, 05:22

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General

Target

2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe
Size

55KB
MD5

fb5a09cd8fc1aa8b5f70c5e267e6c1b4
SHA1

dd1b1845811ee73d12ff4c851d859f841fb98b3a
SHA256

4aa4d9029a7fa0f80bd40ad462c1e295338822ec91f18a3497d04396c0e2ffe9
SHA512

fad430d2d7a7c2ec3e4ecb45b3d96888a1b4bc3423daffe8a295a9d3ca2e1e4c7c3d48145874b8f11d48c4d04eed8dfdb9fbd17d189bc966199cb7b710d58324
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5QJz7/eld:6j+1NMOtEvwDpjr8oxExe/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014502-11.dat	CryptoLocker_rule2
behavioral1/memory/2356-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3064-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014502-11.dat	CryptoLocker_set1
behavioral1/memory/2356-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3064-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b000000014502-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2356-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3064-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
3064	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2356	2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_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 2356 wrote to memory of 3064	2356	2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe	28
PID 2356 wrote to memory of 3064	2356	2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe	28
PID 2356 wrote to memory of 3064	2356	2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe	28
PID 2356 wrote to memory of 3064	2356	2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_fb5a09cd8fc1aa8b5f70c5e267e6c1b4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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
55KB

MD5
7a86029de89cb9a6dcc3b664419c80e5

SHA1
4c931b6f5791a30c26002ed5e23232f417e2589d

SHA256
44792129ebc7f317ede36e358a7fde1951f88b06eb255db64b859a8f5daa9e33

SHA512
5a75356536ff98d90f4aa46a9fb35ad67cf2b4e1e32b09632dca53efa21df2c0b940df196d57020d32e567c2fba8119da557d70ed34cf978a54ad3fe0d338271

Download Submit
memory/2356-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2356-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2356-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2356-9-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2356-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3064-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/3064-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/3064-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download