b009b855320c10ca0119bd3dc90caaa477eba23f574b64c34feeba1697bc16f1

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:23

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General

Target

2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe
Size

53KB
MD5

0c896b7bd6d5c998298c31ae1cda602b
SHA1

44f31ca06b153a36ae02e3049841ebf7d6bef92b
SHA256

b009b855320c10ca0119bd3dc90caaa477eba23f574b64c34feeba1697bc16f1
SHA512

0ef374aa685e228a3ed24b3bba64489f57cfabace1b31c7cd0a590b46f9bc194c3f2da369c10082524a9094ba246b0a33aa8c4c81828e27b8ef24aca222a0f30
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHg:6j+1NMOtEvwDpjr8hhXiA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2884-12-0x0000000000630000-0x000000000063F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2884-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1856-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2884-12-0x0000000000630000-0x000000000063F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2884-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1856-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2884-12-0x0000000000630000-0x000000000063F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2884-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1856-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

1856 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe

pid process

2884 2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1856	misid.exe

pid	process
2884	2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe

description	pid	process	target process
PID 2884 wrote to memory of 1856	2884	2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe	misid.exe
PID 2884 wrote to memory of 1856	2884	2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe	misid.exe
PID 2884 wrote to memory of 1856	2884	2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe	misid.exe
PID 2884 wrote to memory of 1856	2884	2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_0c896b7bd6d5c998298c31ae1cda602b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:1856

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
53KB

MD5
8f26d0b56b5d35173ecaa4b0c8bc8d21

SHA1
c4c1d5ce56a32b609ad4380560c7c3a172eeb920

SHA256
4c06b1cc487d234955d8cf1e7c2758a255086bac547a95b26d382c9182d647f9

SHA512
7dfd20ee9daf68d29331784a68213ecaf560c222cc164ff4094ff8ae945ebb0a65eb0bec7de1ff653b2cfb41d703144a0624f1aa69df328c9a2dfbdbd8636fd6

Download Submit
memory/1856-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/1856-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1856-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2884-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2884-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2884-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2884-9-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2884-12-0x0000000000630000-0x000000000063F000-memory.dmp

Filesize
60KB

Download
memory/2884-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download