7c0439b3feffecde6a31651248bd11584614189d18dc4f20942d04ca68ee8a4a

Analysis

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

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
23-05-2024 00:43

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General

Target

2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe
Size

96KB
MD5

364296a05beaaf312154f867cd017d5e
SHA1

e7916c4c8c9cf2913b6d106203932d6ff586be0a
SHA256

7c0439b3feffecde6a31651248bd11584614189d18dc4f20942d04ca68ee8a4a
SHA512

dc66f425471212c67350b91d1b192a99c27109f1238bf20bd7f218f151d15fff46124aa4e8a36568dac7dc031b04abe5ecbc979e378019a4f28ce8e96313d3e2
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvAcP:xj+VGMOtEvwDpjubwQEI8UtzNcO8AcP

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2204-13-0x00000000005F0000-0x0000000000600000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2204-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2204-13-0x00000000005F0000-0x0000000000600000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2204-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2204-13-0x00000000005F0000-0x0000000000600000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2204-16-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2540 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe

pid process

2204 2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2540	misid.exe

pid	process
2204	2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe

description	pid	process	target process
PID 2204 wrote to memory of 2540	2204	2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe	misid.exe
PID 2204 wrote to memory of 2540	2204	2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe	misid.exe
PID 2204 wrote to memory of 2540	2204	2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe	misid.exe
PID 2204 wrote to memory of 2540	2204	2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_364296a05beaaf312154f867cd017d5e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2204

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2540

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe
Filesize
96KB

MD5
c9d7a031737b075ce0a6f5c14c9de2f3

SHA1
8ca2776010706f8edd86a17fb470244b16fff900

SHA256
27992150998f32e8e75c001f41b606065622972db6574b7cc0212858bb73aba8

SHA512
a4a007fe45f12dfd2425ab79a9ecebee4842932de06d8dea8cca591996447ee5b786d4640fe6ce248c2340870c171b317019903b5fca12b5d9d0818207c352d0

Download Submit
memory/2204-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2204-9-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2204-1-0x0000000000430000-0x0000000000436000-memory.dmp

Filesize
24KB

Download
memory/2204-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2204-13-0x00000000005F0000-0x0000000000600000-memory.dmp

Filesize
64KB

Download
memory/2204-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2540-18-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/2540-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download