7ed6b5301989935b8af5f11e204ceefbcc5875bd7a7cf0ae38fb8e25f704aec5

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 20:35

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General

Target

2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe
Size

48KB
MD5

70f633e4acaa27c6892ae97b8ef87412
SHA1

b1d777f74ce7a749adeb8897659117c9b8127981
SHA256

7ed6b5301989935b8af5f11e204ceefbcc5875bd7a7cf0ae38fb8e25f704aec5
SHA512

9bbc32237457472bebff8608c8a27e0db6a8cc3a9b27d080266fadcc445f21cc4c21c9893466db0131d7cdcc659ed4918d5440ed29774e81f3a80836b318d6cb
SSDEEP

768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9RzhwaRh+Ep6S:xj+VGMOtEvwDpjy+TRh+EUS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1096-8-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_rule2
behavioral1/memory/2020-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2020-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1096-8-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
\Users\Admin\AppData\Local\Temp\misid.exe	CryptoLocker_set1
behavioral1/memory/2020-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2020-25-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

Detects executables built or packed with MPress PE compressor 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1096-8-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
\Users\Admin\AppData\Local\Temp\misid.exe	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2020-15-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2020-25-0x0000000000500000-0x0000000000510000-memory.dmp	INDICATOR_EXE_Packed_MPress

Executes dropped EXE 1 IoCs

Processes:

misid.exe

pid process

2020 misid.exe
Loads dropped DLL 1 IoCs

Processes:

2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe

pid process

1096 2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2020	misid.exe

pid	process
1096	2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe

description	pid	process	target process
PID 1096 wrote to memory of 2020	1096	2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe	misid.exe
PID 1096 wrote to memory of 2020	1096	2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe	misid.exe
PID 1096 wrote to memory of 2020	1096	2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe	misid.exe
PID 1096 wrote to memory of 2020	1096	2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe	misid.exe

C:\Users\Admin\AppData\Local\Temp\2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_70f633e4acaa27c6892ae97b8ef87412_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1096

C:\Users\Admin\AppData\Local\Temp\misid.exe
"C:\Users\Admin\AppData\Local\Temp\misid.exe"
2⤵
- Executes dropped EXE
PID:2020

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
49KB

MD5
b7946bca06a3513a9cb6d09f40484127

SHA1
99ab2b0bbff1c85cb2b1ee41c434d3bfce594390

SHA256
78b65903589fcca8ce001f52ebbe8480561fa811dbbfd3f11c7c5f69aa083c70

SHA512
52c4bd0ecb1f3eac0343e661d151a67d92d2270174da0f76ff9fa8052fbbc53aac1a08a3ff4e6d02590122d0bed164e0ea1760fe7e7244a2beee0d03b9822d94

Download Submit
memory/1096-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1096-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1096-9-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/1096-8-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2020-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2020-17-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2020-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2020-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download