03cdd97b9e121b11afc38fd8fffd7fa20b76c9b14fb8fad2f891c66f65095997

Analysis

max time kernel
163s
max time network
172s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 11:53

Target

intimacao.exe
Size

349KB
MD5

4a5fceb31fa87e620a4bca365c5c7e5b
SHA1

4dd5d2c4edd696d0beab5802d965b9002d6f50fc
SHA256

4f52ed1a531999d1304eb8837a393fcde8f6d20f38bbff295e5e62156009ef27
SHA512

1f7c048649805a118e4ccc807fc4ba9d1567bcc289d724eb0a4ab31ce0ccdb1f7f9687d7b1e224b894463d5576bb3af72bea0aa46b0a7c66521c5c92f6b43537
SSDEEP

6144:VwHysA4gTF5arWEXCi4xD/K3enNbeAvXNsmaMSu1xWbLc8tEU59b0x45vp:+A4gTCr7DITsMNnPNsma3429bbB

Score

8^/10

upx

UPX packed file 6 IoCs

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

Processes:

resource	yara_rule
behavioral2/memory/3600-134-0x0000000000400000-0x0000000000500000-memory.dmp	upx
behavioral2/memory/3600-135-0x0000000000400000-0x0000000000500000-memory.dmp	upx
behavioral2/memory/3600-136-0x0000000000400000-0x0000000000500000-memory.dmp	upx
behavioral2/memory/3600-137-0x0000000000400000-0x0000000000500000-memory.dmp	upx
behavioral2/memory/3600-138-0x0000000000400000-0x0000000000500000-memory.dmp	upx
behavioral2/memory/3600-139-0x0000000000400000-0x0000000000500000-memory.dmp	upx

Loads dropped DLL 1 IoCs

Processes:

intimacao.exe

pid process

2296 intimacao.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

intimacao.exe

description pid process target process

PID 2296 set thread context of 3600 2296 intimacao.exe intimacao.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
2296	intimacao.exe

description	pid	process	target process
PID 2296 set thread context of 3600	2296	intimacao.exe	intimacao.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

intimacao.exe

description	pid	process	target process
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe
PID 2296 wrote to memory of 3600	2296	intimacao.exe	intimacao.exe

C:\Users\Admin\AppData\Local\Temp\intimacao.exe
"C:\Users\Admin\AppData\Local\Temp\intimacao.exe"
2⤵
PID:3600

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Users\Admin\AppData\Local\Temp\nseB9EF.tmp\caprices.dll

Filesize
56KB

MD5
96e470ce27bcb5d204b5a69fdd30416a

SHA1
58f25d93b4d1dd3f309dab5d8dbdb7607948ac9f

SHA256
9e06f35e8383c29db6478e54b9b2b008945889730bfaf70143e1ac526bbbf08b

SHA512
546bd8e369bab8d808c8e5670090ed064f09d44611bca1d1df7a9cc9464080bacda66b04a8e8078a6976172a11087bb847193782b5aaabde9d28040803b973b8

Download Submit
memory/3600-133-0x0000000000000000-mapping.dmp

Download
memory/3600-134-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/3600-135-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/3600-136-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/3600-137-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/3600-138-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download
memory/3600-139-0x0000000000400000-0x0000000000500000-memory.dmp

Filesize
1024KB

Download