580145efa2f9a84bc89b3576efeff04ce8105a50dbbc3442292545926f3cc03d

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-02-2024 05:04

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General

Target

2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe
Size

57KB
MD5

abbbf32259def0d925bdcabed0f35481
SHA1

87aef46c66a28c83263bcb76243a853a65a5657e
SHA256

580145efa2f9a84bc89b3576efeff04ce8105a50dbbc3442292545926f3cc03d
SHA512

5d33e87e1bb4b29c01ee5f846956ad04fde4f3681b4922a2782ab45b5c717aabbefd33f7dc53cff1f3afeae1ea817edac114ef7b98570980133dcd7fd341029b
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFr:xj+VGMOtEvwDpjubEgyr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1284-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000800000001222b-11.dat	CryptoLocker_rule2
behavioral1/memory/1284-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1284-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000800000001222b-11.dat	CryptoLocker_set1
behavioral1/memory/1284-14-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/1284-1-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000800000001222b-11.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1284-14-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

pid	Process
2688	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1284	2024-02-25_abbbf32259def0d925bdcabed0f35481_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 1284 wrote to memory of 2688	1284	2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe	28
PID 1284 wrote to memory of 2688	1284	2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe	28
PID 1284 wrote to memory of 2688	1284	2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe	28
PID 1284 wrote to memory of 2688	1284	2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-25_abbbf32259def0d925bdcabed0f35481_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2688

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
57KB

MD5
0b4e40da9ee5c233e9ca66d280be147a

SHA1
c57842ee4f940d6039d1321536cbcf81a03fd04f

SHA256
5be54283ee42dbb82757067f81841fb3dbd6e4a583ce75c1375f75ce6565493d

SHA512
bc008c3da927a3c0a54f3d2b6761cd84f399fba93f7e18f926b2afe2af225566ad6f1b696ba5b5f8c9824b0abb1d9b94065f50560e224e4291f5f29412ea0fe1

Download Submit
memory/1284-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1284-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1284-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1284-4-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1284-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2688-18-0x00000000004C0000-0x00000000004C6000-memory.dmp

Filesize
24KB

Download
memory/2688-20-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2688-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download