ba831dba46c780fa7eb3e64174a28a53b1a72a793be6cb9bb7d8efa46357b2e2

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 04:25

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General

Target

2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe
Size

90KB
MD5

06e80624be37c09ce5b128a242427c80
SHA1

20c0a0822316327dea4ef09f8cbf0d430b366b92
SHA256

ba831dba46c780fa7eb3e64174a28a53b1a72a793be6cb9bb7d8efa46357b2e2
SHA512

72003ae524796a99690028a4cf4512be77732ebf194ceebc2db4b0a90f1a43e17ff40d46960d645ec08a1dda217cbc55481d34c8c97829d84df09d9af82b0bc6
SSDEEP

1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/k:n6a+1SEOtEvwDpjYYvQd2Pz

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2672	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2692	2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2692-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x00080000000120cd-11.dat	upx
behavioral1/memory/2692-14-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2672-25-0x0000000000500000-0x0000000000510000-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	2024-09-12_06e80624be37c09ce5b128a242427c80_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 2692 wrote to memory of 2672	2692	2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe	30
PID 2692 wrote to memory of 2672	2692	2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe	30
PID 2692 wrote to memory of 2672	2692	2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe	30
PID 2692 wrote to memory of 2672	2692	2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-12_06e80624be37c09ce5b128a242427c80_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- 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:2672

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

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

Filesize
91KB

MD5
3784e17f3989c02de07b65272229d076

SHA1
1ce5eb7c447c6dc4f0566f8db2c5b3da5f65ef39

SHA256
7c3c09d9b7625438044fb2e13814fb60ca4293f277c39816b31f4f73bca60d6e

SHA512
2dc05540d221827ca294c9c0aa7f05da394563b4362079f04c8868bd2bb1953681e2c3a78f60cd8b90da9ac20009a516d3e9b6b071467069ef01e80e835a2fd8

Download Submit
memory/2672-17-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2672-24-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2672-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2692-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2692-2-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2692-9-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2692-1-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2692-14-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download