eebb7a3a42e7915d63bc17cb418e74da539247b084bc00a4abdf6963f20eb2a6

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-10-2024 05:28

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General

Target

2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe
Size

39KB
MD5

75bd8628cc7def4794c2523a5b6a5132
SHA1

51d7b63ff67641cbac284fc1132a954f74a7d859
SHA256

eebb7a3a42e7915d63bc17cb418e74da539247b084bc00a4abdf6963f20eb2a6
SHA512

4d270b3382eba21743d422fe09bb975cea2bc076b0e6586cbdaaa30f95af17e98837b1cafd9a39e91747636f5be1134b1f809285898687b0c1da05d859a87bac
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITkK:qDdFJy3QMOtEvwDpjjWMl7Td

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2744	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2852	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2852-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000012266-16.dat	upx
behavioral1/memory/2744-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2852-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2744-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2744	2852	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe	30
PID 2852 wrote to memory of 2744	2852	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe	30
PID 2852 wrote to memory of 2744	2852	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe	30
PID 2852 wrote to memory of 2744	2852	2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-06_75bd8628cc7def4794c2523a5b6a5132_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2852
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
39KB

MD5
d176697966bd16f4c98dfa81aacc231c

SHA1
3fd02950373ce743fe5ee2eaff969553fd3659d4

SHA256
c48c5599a547e28eb1e522feceaecb3aac20b71148076765438fd97266fecba9

SHA512
959c34cb4d419334d58b3614be1cb4b7809559837a4f4be89e73040422dbcac7dc6776f252a7eea533681d2aae851aa47d9bba3314d90b1e474e0f298f1091cc

Download Submit
memory/2744-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2744-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2744-26-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2744-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2852-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2852-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2852-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2852-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2852-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download