4fb63c0d80c10972a63424a0bc66087166b37aa26ce139c4123b3f09850a46c9 | Triage

Analysis

max time kernel
385s
max time network
1588s
platform
windows10-1703_x64
resource
win10-20230220-es
resource tags

arch:x64arch:x86image:win10-20230220-eslocale:es-esos:windows10-1703-x64systemwindows
submitted
04-05-2023 00:33

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General

Target

Instalar.exe
Size

139KB
MD5

a280996c6eb6397bc7aff7970e14211c
SHA1

f37523b8153c3bb6913351458f2f31d8cc3d4c63
SHA256

4fb63c0d80c10972a63424a0bc66087166b37aa26ce139c4123b3f09850a46c9
SHA512

0e7edaa7bdb6bfee666514fde792a83b495204b7efc814e5ce8beb133084f1af819f29d73d80d09befbb51e3cbc048ab06c4a702444d528e48b804a6693eede5
SSDEEP

3072:EliUPXC8k1nJrX+fNTBfSl4kZPSF+mTAUMa:EzBkLL2NTB6IjpMa

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4328 wrote to memory of 2100	4328	Instalar.exe	66
PID 4328 wrote to memory of 2100	4328	Instalar.exe	66

C:\Users\Admin\AppData\Local\Temp\Instalar.exe
"C:\Users\Admin\AppData\Local\Temp\Instalar.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Windows\System32\cmd.exe
  "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\719B.tmp\719C.tmp\719D.bat C:\Users\Admin\AppData\Local\Temp\Instalar.exe"
  2⤵
  PID:2100

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\719B.tmp\719C.tmp\719D.bat

Filesize
29B

MD5
4197c41f89be72d041f3de41f05acea3

SHA1
57f8eec257622fca27bc76ac18cc7da0c58f14b4

SHA256
a6a978987d15576614fa2ff1b31167096dbb00b64177bd047178b366683d82e3

SHA512
cb28c961f22c42a2890b702b2d8d8b3891a917fef3411e8e0cde2e15df3e5751620df54e3c4c4196f78ebd59aeb549948b862b92c838cb493e9b69c6b69f1ede

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