remcos | e47dfbb5bd64ac09562d7d20618ba7f024a0b7547d864217feb0586f7145cdb0

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-12-2024 07:30

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General

Target

Justificante de pago.exe
Size

1001KB
MD5

0c0b566099d8f32313cac142624e9b89
SHA1

c91bd91424a20a9d45cc62cd3aaa85afefe60a74
SHA256

e47dfbb5bd64ac09562d7d20618ba7f024a0b7547d864217feb0586f7145cdb0
SHA512

de9de86a26a0d0eee105908e1c378be6c18a99a4c03b7d8a6e9d2049a0fc830903e077684156928d7b97176c6fa05a6d9e66793760e2a9edd1b54dd22c98fa2d
SSDEEP

24576:2oIeeaYI32l/Pow+E9rW2rtaldr+3dmBABsNJUI:JBeaWl/Pow+EW2RaLrbw

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:7643

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-14OQCD
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
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
Remcos family
remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2948	powershell.exe
4984	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	Justificante de pago.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4968 set thread context of 2288	4968	Justificante de pago.exe	95

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 4 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	Justificante de pago.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4968	Justificante de pago.exe
4968	Justificante de pago.exe
4984	powershell.exe
2948	powershell.exe
4968	Justificante de pago.exe
4968	Justificante de pago.exe
2948	powershell.exe
4984	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4968	Justificante de pago.exe
Token: SeDebugPrivilege	4984	powershell.exe
Token: SeDebugPrivilege	2948	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2288	Justificante de pago.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 4984	4968	Justificante de pago.exe	89
PID 4968 wrote to memory of 4984	4968	Justificante de pago.exe	89
PID 4968 wrote to memory of 4984	4968	Justificante de pago.exe	89
PID 4968 wrote to memory of 2948	4968	Justificante de pago.exe	91
PID 4968 wrote to memory of 2948	4968	Justificante de pago.exe	91
PID 4968 wrote to memory of 2948	4968	Justificante de pago.exe	91
PID 4968 wrote to memory of 4724	4968	Justificante de pago.exe	93
PID 4968 wrote to memory of 4724	4968	Justificante de pago.exe	93
PID 4968 wrote to memory of 4724	4968	Justificante de pago.exe	93
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95
PID 4968 wrote to memory of 2288	4968	Justificante de pago.exe	95

C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe
"C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4984
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TYLngHLuy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2948
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TYLngHLuy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5F6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4724
- C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe
  "C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
ee33cd11ccf5f40399899163fcde7554

SHA1
baa52673d1deb393dc145d5f0a559591a63d7cf5

SHA256
c7840e61580632d46866e52606ba72446f3e96a3e61778aef9addd41ad25401e

SHA512
554b2b5d7d243ceb6461da5503271e2b2f5044000453817a027040ed62a5605f8970b8a61788947d7e3fd21ce91ccc232de97ec4b2b1ee9bfb32b7378dfde48b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
ee1a54642dc24582ca75f4a2c96d2669

SHA1
d7c2351588352245db86af36d7421ca20b27ae6b

SHA256
c1d58b3f7bbebb50bc683225552ad9a070d3e851ab095d0b4c4e2f15ab7f5f71

SHA512
4db2dfaf8165646e40a75c21f491220d903e85682ab99c39e75df7ca003222cd8e0111d9b11af7f0bd51908304b1291a4bbd6c3a2ce710e570b7bb052544524d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hvgt2j5d.3ou.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5F6.tmp

Filesize
1KB

MD5
d980739ba213a966069758f1bb072448

SHA1
36302d1e11bc8d29c5ff0da3152ebc300df336f3

SHA256
94c339f3f534a078b6c3688178626125d61f67a535f047de2d9e400976b446de

SHA512
d6dba0be5ada014017102c6965b83a4829e32de6253306ca65021fcbb66ca63b3b607727f736c16ce563b6f33384c6d7cc89a4646327d0d56b0f4ede410ad7f2

Download Submit
memory/2288-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-134-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-169-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-168-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-166-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-165-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-164-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-162-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-161-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-160-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-159-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-157-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-156-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-155-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-153-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-152-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-151-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-149-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-148-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-144-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-143-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-139-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-136-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-135-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-132-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-131-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-130-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-128-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-127-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-126-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-125-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-123-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-122-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-119-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-118-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-121-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-117-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-110-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-112-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2288-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2948-25-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/2948-20-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/2948-55-0x0000000006760000-0x00000000067AC000-memory.dmp

Filesize
304KB

Download
memory/2948-97-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/2948-70-0x000000006F120000-0x000000006F16C000-memory.dmp

Filesize
304KB

Download
memory/2948-26-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/2948-54-0x00000000066A0000-0x00000000066BE000-memory.dmp

Filesize
120KB

Download
memory/2948-90-0x0000000007D00000-0x0000000007D08000-memory.dmp

Filesize
32KB

Download
memory/2948-89-0x0000000007D20000-0x0000000007D3A000-memory.dmp

Filesize
104KB

Download
memory/2948-81-0x0000000008020000-0x000000000869A000-memory.dmp

Filesize
6.5MB

Download
memory/2948-87-0x0000000007C10000-0x0000000007C1E000-memory.dmp

Filesize
56KB

Download
memory/2948-84-0x0000000007A50000-0x0000000007A5A000-memory.dmp

Filesize
40KB

Download
memory/4968-0-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/4968-7-0x000000007466E000-0x000000007466F000-memory.dmp

Filesize
4KB

Download
memory/4968-5-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4968-6-0x00000000078D0000-0x00000000078E8000-memory.dmp

Filesize
96KB

Download
memory/4968-4-0x0000000004CE0000-0x0000000004CEA000-memory.dmp

Filesize
40KB

Download
memory/4968-8-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4968-9-0x0000000008F50000-0x0000000009014000-memory.dmp

Filesize
784KB

Download
memory/4968-3-0x00000000076C0000-0x0000000007752000-memory.dmp

Filesize
584KB

Download
memory/4968-10-0x0000000006510000-0x00000000065AC000-memory.dmp

Filesize
624KB

Download
memory/4968-1-0x0000000000710000-0x0000000000810000-memory.dmp

Filesize
1024KB

Download
memory/4968-2-0x0000000007C70000-0x0000000008214000-memory.dmp

Filesize
5.6MB

Download
memory/4968-56-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4984-86-0x0000000007430000-0x0000000007441000-memory.dmp

Filesize
68KB

Download
memory/4984-23-0x00000000056C0000-0x0000000005726000-memory.dmp

Filesize
408KB

Download
memory/4984-36-0x0000000005950000-0x0000000005CA4000-memory.dmp

Filesize
3.3MB

Download
memory/4984-24-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/4984-21-0x0000000004F40000-0x0000000004F62000-memory.dmp

Filesize
136KB

Download
memory/4984-19-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4984-18-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4984-16-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download
memory/4984-17-0x0000000005020000-0x0000000005648000-memory.dmp

Filesize
6.2MB

Download
memory/4984-15-0x0000000004950000-0x0000000004986000-memory.dmp

Filesize
216KB

Download
memory/4984-85-0x00000000074B0000-0x0000000007546000-memory.dmp

Filesize
600KB

Download
memory/4984-59-0x000000006F120000-0x000000006F16C000-memory.dmp

Filesize
304KB

Download
memory/4984-58-0x0000000006E80000-0x0000000006EB2000-memory.dmp

Filesize
200KB

Download
memory/4984-82-0x0000000007230000-0x000000000724A000-memory.dmp

Filesize
104KB

Download
memory/4984-69-0x00000000070E0000-0x00000000070FE000-memory.dmp

Filesize
120KB

Download
memory/4984-88-0x0000000007470000-0x0000000007484000-memory.dmp

Filesize
80KB

Download
memory/4984-80-0x0000000007100000-0x00000000071A3000-memory.dmp

Filesize
652KB

Download
memory/4984-96-0x0000000074660000-0x0000000074E10000-memory.dmp

Filesize
7.7MB

Download