4093f57cd9214528dbc075247b6b6185af61a8090ea7f030d66a8612cc99dd48

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 03:25

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General

Target

2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe
Size

63KB
MD5

38feee304798d094b47e73cc45556552
SHA1

653b87fa1e1c8107c945a08fc82ff8d564da30ab
SHA256

4093f57cd9214528dbc075247b6b6185af61a8090ea7f030d66a8612cc99dd48
SHA512

a8bb3545f73acadd0c72355eeca903e07ce812c1b4fb9cb0e0b000ad6767be0e98c1665d58bb8244b92170aa2b1ae55614ab3963a1055612b2c04afcd7972358
SSDEEP

768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEKIRM:6j+1NMOtEvwDpjr8ox8UDEKKM

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000c00000001233c-11.dat	CryptoLocker_rule2
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2940-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2940-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000c00000001233c-11.dat	CryptoLocker_set1
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2940-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2940-26-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c00000001233c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2940-17-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2940-26-0x0000000000500000-0x000000000050F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2940	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-03-15_38feee304798d094b47e73cc45556552_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 2240 wrote to memory of 2940	2240	2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe	28
PID 2240 wrote to memory of 2940	2240	2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_38feee304798d094b47e73cc45556552_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2940

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

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
63KB

MD5
8723c12ae2ad875428ab353ee495e04c

SHA1
1cc76da0ee9a0e9711a133853092bfb363a2c707

SHA256
b14b8a1334a5e316bc66289f0c1e9b8cb86a449c5a11cde589f1ea9771cafe44

SHA512
3b92193edfac5e2cb6440d9fa71cfff1e6e268636068982fccac705f3af66d92059d84037b23d6bb723e137137db370dee1222708c47b8af0113f72cf792a283

Download Submit
memory/2240-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2240-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2240-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2940-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2940-18-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2940-25-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2940-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download