5373e50a431f7888d56d873a4e318b4df243cb8892682afa34de87733fcd77eb

Analysis

max time kernel
141s
max time network
139s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/09/2024, 04:30

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General

Target

2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe
Size

96KB
MD5

7fded11a4c5e78377d318349f0c16468
SHA1

e74b49fe2111c2df33fbb44c0ea4074074155899
SHA256

5373e50a431f7888d56d873a4e318b4df243cb8892682afa34de87733fcd77eb
SHA512

34a6fda91655d6882bddf96eea85fe25a47ecd24510be9dd3b47dc62bbeb34e588af5d28a08c95c4f6e9c26f888e5d3082a7e655d1f241effe716eeb780abe17
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsviPP:AnBdOOtEvwDpj6zt

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1536	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1980	2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1980-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/1980-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000c00000001225c-15.dat	upx
behavioral1/memory/1536-26-0x0000000000500000-0x000000000050F000-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	2024-09-19_7fded11a4c5e78377d318349f0c16468_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 1980 wrote to memory of 1536	1980	2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe	31
PID 1980 wrote to memory of 1536	1980	2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe	31
PID 1980 wrote to memory of 1536	1980	2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe	31
PID 1980 wrote to memory of 1536	1980	2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fded11a4c5e78377d318349f0c16468_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1980
- 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:1536

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
96KB

MD5
0031a0aca6bf4128ad92439b73a517fe

SHA1
44f507e6ebc372a56d0258db45fb07b969368242

SHA256
88d7d3ee7c7d98fcf5ecf37f7f8c6d8f7c574cc6881719f892cd58226eb3fdd2

SHA512
ec6aad8d83f69c6d966aa0aca82cbc20dbd320504f8021a113eac896859bfdab5230dfd5fb5db6330b8dc42fe761e44b867167d783e7e9e96821d62e6a61f366

Download Submit
memory/1536-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1536-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1536-26-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1980-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1980-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1980-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1980-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1980-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/1980-13-0x0000000000420000-0x000000000042F000-memory.dmp

Filesize
60KB

Download