03a77acdd6f0cd598666d61f69f25abeb7e1b69f95abca06c7dac4ee868fd75e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
24-04-2024 19:40

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General

Target

2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe
Size

42KB
MD5

7340919c28d7420a5a4ed1854598192c
SHA1

24e0b88ae6d0fff7199a0d28feda9dab7ecc95af
SHA256

03a77acdd6f0cd598666d61f69f25abeb7e1b69f95abca06c7dac4ee868fd75e
SHA512

032b98c765a67cbeef41f7c474ef3c1f48a7dae4deaad24a9c783e644d97d832279dfab9a20936ee42b96e6eea54765cfc3a5ce9e19192b1505def8d6ab7b248
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/CtXabMS:6j+1NMOtEvwDpjrR2XabMS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2988-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000000e610-11.dat	CryptoLocker_rule2
behavioral1/memory/2988-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2988-1-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000000e610-11.dat	CryptoLocker_set1
behavioral1/memory/2988-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2988-1-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b00000000e610-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2988-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2552	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	2024-04-24_7340919c28d7420a5a4ed1854598192c_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 2988 wrote to memory of 2552	2988	2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe	28
PID 2988 wrote to memory of 2552	2988	2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe	28
PID 2988 wrote to memory of 2552	2988	2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe	28
PID 2988 wrote to memory of 2552	2988	2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_7340919c28d7420a5a4ed1854598192c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2552

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
42KB

MD5
0c3262c8db04e574b55cfe17bc20a30e

SHA1
932157a7d41e4c9127e16000b0ea2c0436c75174

SHA256
8a174b38fa2d4590d69eb158e878f0a5c73c6bdc39e137dd84faf177d90952b5

SHA512
d7c5d843023c0fe03ad912bfc3491aa8ab27de9636d2595e1da1c2ff8592f28ee9d38115044cedb2f3f0348e6c925467ffe6c64b68fc371e09ff8cd49babce14

Download Submit
memory/2552-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2552-18-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2552-20-0x0000000000440000-0x0000000000446000-memory.dmp

Filesize
24KB

Download
memory/2552-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2988-1-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2988-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2988-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2988-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download