d80efecddebf378871225c7a1f063ad005a57e3b12c98599350ca7fc6775de8c

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/09/2024, 20:18

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General

Target

2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe
Size

39KB
MD5

b19a33cd4302b3ac454e9541873e4292
SHA1

24d603d64e9fdbc42638f5c818cfa3c79d8abdb6
SHA256

d80efecddebf378871225c7a1f063ad005a57e3b12c98599350ca7fc6775de8c
SHA512

7f069463c13e48479e6d172e228b261383cf6d952477166461993a10e3f17a14a9176c5ca15f66c734010599e5314d81a2edf82beb3c60783323f48483343f40
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYaIdC:qDdFJy3QMOtEvwDpjjWMl7TdAC

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2480	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2308	2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2308-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000d000000015ceb-14.dat	upx
behavioral1/memory/2308-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2480-26-0x0000000000500000-0x0000000000510000-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	2024-09-18_b19a33cd4302b3ac454e9541873e4292_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 2308 wrote to memory of 2480	2308	2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe	31
PID 2308 wrote to memory of 2480	2308	2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe	31
PID 2308 wrote to memory of 2480	2308	2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe	31
PID 2308 wrote to memory of 2480	2308	2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-18_b19a33cd4302b3ac454e9541873e4292_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- 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:2480

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

Replay Monitor

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Downloads

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

Filesize
39KB

MD5
e97fa0ca15d2a04e2b2b56e62e60edf7

SHA1
704de115440b88a2c310e1e76aae4a64e988d88b

SHA256
cd8bc5f3aa68e7aec9b170cd6e9e1f77012f3be843349f1ac44626d81260356e

SHA512
54cb5fdc9c33f92003f07ef7ce123bd08e72f31ce4c7d1ba2a0d2a2502821dc1881dbdf728655aa951d04c202e56062a0fb8ee7fc868cd73d6136f418d9886c5

Download Submit
memory/2308-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2308-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2308-2-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2308-3-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2308-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2480-18-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2480-25-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2480-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download