08ce85def74d4c5f7cf0f7cb0425416ee1430239ebd62c9396f318ecfc42faf8

Analysis

max time kernel
131s
max time network
139s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24/04/2024, 18:03

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General

Target

2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe
Size

47KB
MD5

755e504020eb6a00311337de5499f1c3
SHA1

24ca3acf665cda13fe5710ee0a2fc5ff22cd11ed
SHA256

08ce85def74d4c5f7cf0f7cb0425416ee1430239ebd62c9396f318ecfc42faf8
SHA512

683c8b040deecf713fdbd074ec67704d41bafe55a3fc24ffa658902b89a313b900a17c92e78dc4b6f90d1b2036b4a34435c01f3595392a0db9dbd32597008d9c
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rva/yYsW:xj+VGMOtEvwDpjy+viHsW

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b00000001224c-11.dat	CryptoLocker_rule2
behavioral1/memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2976-20-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b00000001224c-11.dat	CryptoLocker_set1
behavioral1/memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2976-20-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

resource	yara_rule
behavioral1/memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000b00000001224c-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2976-20-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2976	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-04-24_755e504020eb6a00311337de5499f1c3_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 2872 wrote to memory of 2976	2872	2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe	28
PID 2872 wrote to memory of 2976	2872	2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe	28
PID 2872 wrote to memory of 2976	2872	2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe	28
PID 2872 wrote to memory of 2976	2872	2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_755e504020eb6a00311337de5499f1c3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2976

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
47KB

MD5
e0089d3240b957fe2496b789cb746045

SHA1
81db4c43c6959029a69444319b8c2af2b20f714d

SHA256
1364fbde0f834efde5be0e7a816bb71aee309c59111f1f59866c816b3473299b

SHA512
71c6a206f24524fb6881910d6775d88dc10f3326bb4a39ce0e8c1621b0db1694152dc865d745927d5003083741012689c8e485175ee67a9a1c8070c75310c052

Download Submit
memory/2872-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2872-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2872-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2872-3-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2976-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2976-20-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2976-17-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download