652463f1d78ffd467155482d9fd6058fb4a1647c18caafd4fbcb63450be49621

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 07:29

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General

Target

2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe
Size

50KB
MD5

9e8a366514167eec77cc72fa4d2bf940
SHA1

132f0b8eddd4ac8d35336fa8dc37a58ead06928d
SHA256

652463f1d78ffd467155482d9fd6058fb4a1647c18caafd4fbcb63450be49621
SHA512

3409181c45f7cbf721743418614801c9f25f02f9c0578ec5080111b9dc2ecd078823215c42e4e286cd37a3bf5db3d87b782bb7909fbc4740bc304421eaa60366
SSDEEP

768:qmOKYQDf5XdrDmjr5tOOtEvwDpjAajFEitQbDmoSQCVUBJUkQqAHBIG05W2MoccB:qmbhXDmjr5MOtEvwDpj5cDtKkQZQ3

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2960-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d000000014713-11.dat	CryptoLocker_rule2
behavioral1/memory/2132-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2960-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2132-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral1/memory/2960-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2132-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2960-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000d000000014713-11.dat	UPX
behavioral1/memory/2132-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2960-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2132-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2132	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2960	2024-05-08_9e8a366514167eec77cc72fa4d2bf940_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 2960 wrote to memory of 2132	2960	2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe	28
PID 2960 wrote to memory of 2132	2960	2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe	28
PID 2960 wrote to memory of 2132	2960	2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe	28
PID 2960 wrote to memory of 2132	2960	2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-08_9e8a366514167eec77cc72fa4d2bf940_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2132

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\asih.exe

Filesize
50KB

MD5
ea46547737ad7a396efda3ec4dade670

SHA1
3393cc467fa76d0dd795d64694df5132c48e64e3

SHA256
e86d127739ee22f24c49f7ba6e369e26987c03ba84b987c0ce64b05813f82c8d

SHA512
d089a9cfe369855bcad4466eb012396fe02f945ff219833bca00bd3ce6af20a3b910d738974857ca56f13ecd8e1244d0be0574ed533c436d49ba3b22b7373766

Download Submit
memory/2132-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2132-19-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2132-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2132-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2960-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2960-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2960-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2960-9-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2960-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download