remcos | 8295fc538990ba0e29ccee1344cfe5426a5132b65c45f9005706ce7f98c7a6d8

General

Target

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Size

273KB
MD5

716d5468b4acda0549df7307b2db1500
SHA1

4c228a8b8d406e62ffe2827294c88d895a8663d4
SHA256

aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213
SHA512

beff5e1447b87d2792d6199bf9a464760761574f23a433962b18f2a967e9b84c953095cd77e846d29663653de50634758b9e08a79b9ed9653648dbe32343f174

Score

10^/10

remcos zonabancos1 persistence rat

Malware Config

Extracted

Family

remcos

Version

2.5.1 Pro

Botnet

ZonaBancos1

C2

recuperaciondecartera.website:6790

Attributes

audio_folder
MicRecords
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
PXServiceNet.exe
copy_folder
System32
delete_file
false
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
xlogs9.dat
keylog_flag
false
keylog_folder
Runtime5
keylog_path
%AppData%
mouse_option
false
mutex
remcos-WMUCYW
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
MServices
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Executes dropped EXE 3 IoCs

Processes:

PXServiceNet.exePXServiceNet.exePXServiceNet.exe

pid process

5044 PXServiceNet.exe
4428 PXServiceNet.exe
2156 PXServiceNet.exe

pid	process
5044	PXServiceNet.exe
4428	PXServiceNet.exe
2156	PXServiceNet.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exeWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exePXServiceNet.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run\	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MServices = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PXServiceNet.exe\""	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run\	PXServiceNet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MServices = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32\\PXServiceNet.exe\""	PXServiceNet.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exePXServiceNet.exe

description	pid	process	target process
PID 2160 set thread context of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 5044 set thread context of 2156	5044	PXServiceNet.exe	PXServiceNet.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000_Classes\Local Settings	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exePXServiceNet.exe

pid	process
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe
5044	PXServiceNet.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exePXServiceNet.exe

description	pid	process
Token: SeDebugPrivilege	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
Token: SeDebugPrivilege	5044	PXServiceNet.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PXServiceNet.exe

pid process

2156 PXServiceNet.exe

pid	process
2156	PXServiceNet.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exeCobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exeWScript.execmd.exePXServiceNet.exe

description	pid	process	target process
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 2160 wrote to memory of 4324	2160	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
PID 4324 wrote to memory of 3796	4324	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	WScript.exe
PID 4324 wrote to memory of 3796	4324	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	WScript.exe
PID 4324 wrote to memory of 3796	4324	Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe	WScript.exe
PID 3796 wrote to memory of 4908	3796	WScript.exe	cmd.exe
PID 3796 wrote to memory of 4908	3796	WScript.exe	cmd.exe
PID 3796 wrote to memory of 4908	3796	WScript.exe	cmd.exe
PID 4908 wrote to memory of 5044	4908	cmd.exe	PXServiceNet.exe
PID 4908 wrote to memory of 5044	4908	cmd.exe	PXServiceNet.exe
PID 4908 wrote to memory of 5044	4908	cmd.exe	PXServiceNet.exe
PID 5044 wrote to memory of 4428	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 4428	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 4428	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe
PID 5044 wrote to memory of 2156	5044	PXServiceNet.exe	PXServiceNet.exe

C:\Users\Admin\AppData\Local\Temp\Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2160

C:\Users\Admin\AppData\Local\Temp\Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Cobro Juridico_0269238974920802_5210818_018214297558997881904018_759752_5835240459117026008_2344621_118955780952_pdf.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4324

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe"
4⤵
- Suspicious use of WriteProcessMemory
PID:4908

C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5044

C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
"C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe"
6⤵
- Executes dropped EXE
PID:4428

C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
"C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe"
6⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
PID:2156

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\install.vbs
Filesize
434B

MD5
d33aedaade0c88a1a0e2ab0df13b0664

SHA1
e044455e25cc9598045e24f79ddf7482f8f66765

SHA256
a7636b433c56dfb0e833c5354352e4f88bc01701eb81895c0cedc645eb2ae85c

SHA512
570f7d522896c053f96ad1d5c1da761468a66722cb2b09f914ae293312f69214b38b25767e90cfd36d5def0219c8b104757c08b56dc2a5b261e8d900344d8924

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
Filesize
273KB

MD5
716d5468b4acda0549df7307b2db1500

SHA1
4c228a8b8d406e62ffe2827294c88d895a8663d4

SHA256
aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

SHA512
beff5e1447b87d2792d6199bf9a464760761574f23a433962b18f2a967e9b84c953095cd77e846d29663653de50634758b9e08a79b9ed9653648dbe32343f174

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
Filesize
273KB

MD5
716d5468b4acda0549df7307b2db1500

SHA1
4c228a8b8d406e62ffe2827294c88d895a8663d4

SHA256
aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

SHA512
beff5e1447b87d2792d6199bf9a464760761574f23a433962b18f2a967e9b84c953095cd77e846d29663653de50634758b9e08a79b9ed9653648dbe32343f174

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
Filesize
273KB

MD5
716d5468b4acda0549df7307b2db1500

SHA1
4c228a8b8d406e62ffe2827294c88d895a8663d4

SHA256
aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

SHA512
beff5e1447b87d2792d6199bf9a464760761574f23a433962b18f2a967e9b84c953095cd77e846d29663653de50634758b9e08a79b9ed9653648dbe32343f174

Download Submit
C:\Users\Admin\AppData\Roaming\System32\PXServiceNet.exe
Filesize
273KB

MD5
716d5468b4acda0549df7307b2db1500

SHA1
4c228a8b8d406e62ffe2827294c88d895a8663d4

SHA256
aa9608f32f753da933fc3d931a99fd1767b9970a5a95ac7ed01e11a51421f213

SHA512
beff5e1447b87d2792d6199bf9a464760761574f23a433962b18f2a967e9b84c953095cd77e846d29663653de50634758b9e08a79b9ed9653648dbe32343f174

Download Submit
memory/2156-151-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2156-152-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2156-147-0x0000000000000000-mapping.dmp

Download
memory/2160-130-0x0000000000810000-0x0000000000858000-memory.dmp

Filesize
288KB

Download
memory/2160-133-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/2160-132-0x0000000005980000-0x0000000005F24000-memory.dmp

Filesize
5.6MB

Download
memory/2160-131-0x0000000005330000-0x00000000053CC000-memory.dmp

Filesize
624KB

Download
memory/3796-139-0x0000000000000000-mapping.dmp

Download
memory/4324-135-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4324-138-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4324-137-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/4324-134-0x0000000000000000-mapping.dmp

Download
memory/4428-145-0x0000000000000000-mapping.dmp

Download
memory/4908-141-0x0000000000000000-mapping.dmp

Download
memory/5044-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads