9dbf1be43f0500ccb8dca3cc760c3b5cfa0b9d6e85d566c07366d6ba18afe63e

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
09/03/2024, 02:45

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General

Target

2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe
Size

63KB
MD5

96c9ed0aeb6f6c88495922b80105900e
SHA1

f935c5f3d77bcae91fe085c3a7860f0ebdbed019
SHA256

9dbf1be43f0500ccb8dca3cc760c3b5cfa0b9d6e85d566c07366d6ba18afe63e
SHA512

05249740f6d034d5c2879328e1686f76531eaaaf7bac20ecf482c5aa7fb5d91b78afbfef8283c29186fcb620cc985fb9960ef311e680616d7bfe6e79b9a7c353
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEM1:6j+1NMOtEvwDpjr8ox8UDE8

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_rule2
behavioral1/memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1996-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/1996-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224f-11.dat	CryptoLocker_set1
behavioral1/memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1996-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/1996-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b00000001224f-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1996-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1996-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
1996	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1924	2024-03-09_96c9ed0aeb6f6c88495922b80105900e_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 1924 wrote to memory of 1996	1924	2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe	28
PID 1924 wrote to memory of 1996	1924	2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe	28
PID 1924 wrote to memory of 1996	1924	2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe	28
PID 1924 wrote to memory of 1996	1924	2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_96c9ed0aeb6f6c88495922b80105900e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1996

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
63KB

MD5
82cffb3799fc21c9853cf874759ca398

SHA1
ca05cd5c767231d46a8355e2f8ffb0b09121e65c

SHA256
08077a3cc15ed9f3372fac07e632c7925b000f4014cd977df3e0aa17ea8155c6

SHA512
a30ebabe749a6413e18312c629ce12a2aa72922dd26a4f6b4b4093ded3f6169f427307353585199c5a42d15f7f19c7ebae14f72850a55ae77a9dcb4d3bb87cb2

Download Submit
memory/1924-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1924-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1924-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1924-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1924-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1996-18-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1996-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1996-19-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1996-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download