50341e31fc9361f084e6624ae80dd7deb78c55c06ffec4b6f27f3640db3f1b34

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:51

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General

Target

2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe
Size

44KB
MD5

d0a8de91371cdaca5aae932ea05893de
SHA1

56f45d7c55b53fe5c755ba41fb937d9eca85966c
SHA256

50341e31fc9361f084e6624ae80dd7deb78c55c06ffec4b6f27f3640db3f1b34
SHA512

6c2a925749f129681f273f7060cb70ab295628289efe9f759ce402d5b339a2ebe0419a88048dd6ab43afa5f3ba5162fc53e14f248c9e02802985f6f9e3dc36be
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDR:6j+1NMOtEvwDpjrRrd

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2556-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2556-25-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2556-25-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2556 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe

pid process

2248 2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2556	misid.exe

pid	process
2248	2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe

description	pid	process	target process
PID 2248 wrote to memory of 2556	2248	2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe	misid.exe
PID 2248 wrote to memory of 2556	2248	2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe	misid.exe
PID 2248 wrote to memory of 2556	2248	2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe	misid.exe
PID 2248 wrote to memory of 2556	2248	2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_d0a8de91371cdaca5aae932ea05893de_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2556

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
45KB

MD5
0a0fece5f457dd8b5a6ffba547cf7072

SHA1
6f7b6bf0b0596851b17d0d7356016e4ee99439a5

SHA256
13561466c449451df0efca4b614882a8c19aa9ab682ed87ad97cc47b36956e52

SHA512
9a95c0cf8157dd88f6f7c9196024d621774a859b34c154f9c47199feaf06b317e13286603789b874fe81418391816611f931d78bfd3070654104dfeadceb6a18

Download Submit
memory/2248-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2248-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2248-2-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2248-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2248-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2556-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2556-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2556-17-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download