remcos | 9223a018c1b218003007110a0ab589049aa4bcfdc2b261d8a141c9372488afb5

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10-09-2024 08:21

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General

Target

2.exe
Size

1023KB
MD5

07a3ed5ced9d2f69a1871a602b62cd56
SHA1

4fb6303b4c4711983abba8cf611871c92c801bfd
SHA256

9223a018c1b218003007110a0ab589049aa4bcfdc2b261d8a141c9372488afb5
SHA512

29913de75bf7d9d6c4ae786936747fcade3fce02bbb7eadb7f10a46b2c312114a52605774c45b72fe90ef0ebbf8707f3fb87562f33e0c7fffb886d909a5446a4
SSDEEP

24576:jeD/Af5Q12n6V+oj8v7ln+g7/jMu86JjAGm/:jKyQ260uw7XEuFjVm

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:56765

127.0.0.1:45645

latestgrace2024.duckdns.org:45645

latestgrace2024.duckdns.org:56765

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-NXBY7S
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat 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
2180	powershell.exe
2860	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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1280 set thread context of 2420	1280	2.exe	99

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 5 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	2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2.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
4284	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1280	2.exe
2180	powershell.exe
2860	powershell.exe
1280	2.exe
2180	powershell.exe
2860	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	2.exe
Token: SeDebugPrivilege	2860	powershell.exe
Token: SeDebugPrivilege	2180	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 2180	1280	2.exe	93
PID 1280 wrote to memory of 2180	1280	2.exe	93
PID 1280 wrote to memory of 2180	1280	2.exe	93
PID 1280 wrote to memory of 2860	1280	2.exe	95
PID 1280 wrote to memory of 2860	1280	2.exe	95
PID 1280 wrote to memory of 2860	1280	2.exe	95
PID 1280 wrote to memory of 4284	1280	2.exe	97
PID 1280 wrote to memory of 4284	1280	2.exe	97
PID 1280 wrote to memory of 4284	1280	2.exe	97
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99
PID 1280 wrote to memory of 2420	1280	2.exe	99

C:\Users\Admin\AppData\Local\Temp\2.exe
"C:\Users\Admin\AppData\Local\Temp\2.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:1280
- 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\2.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2180
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TZWvjYkEyxr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2860
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TZWvjYkEyxr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB9BB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4284
- C:\Users\Admin\AppData\Local\Temp\2.exe
  "C:\Users\Admin\AppData\Local\Temp\2.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2420

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

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
b9f2bf39c83feb6ac125d6f11583bfc1

SHA1
7753f4379e6a78077d8bda79bbcd7d72e8daba26

SHA256
4323e40796b7c57d8cd4cfe356b73407e2726055f41a8ff83a4de10bda0a71c1

SHA512
38859a420c31fad605aa4d553fc5513ada3a58e3a19689898500a21490a982210434a3f3d43aebd49dbb5c747160a0f87184b9700d9e65a2433c65245a89d6dc

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tamwn3hx.1is.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB9BB.tmp

Filesize
1KB

MD5
bc0e62f2263a5d4f38296e8d13e320cc

SHA1
b20b7b0d0713feef00e546569c38d3f4068d5ea9

SHA256
6edd743fef92b8200bb65e1f31a9907beca046c8bb10ca91f82963d926db42b3

SHA512
43efe73c4ccad6990d26073debd44130bf67fb07b10625886de47797355c88aff03e5725a5c99e785e4f18ce6c9e7c956b99c43776e09dc3f80f5d7aeb476a32

Download Submit
memory/1280-8-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-3-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/1280-6-0x0000000006B60000-0x0000000006B70000-memory.dmp

Filesize
64KB

Download
memory/1280-7-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/1280-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/1280-9-0x0000000007430000-0x00000000074EE000-memory.dmp

Filesize
760KB

Download
memory/1280-10-0x0000000009A60000-0x0000000009AFC000-memory.dmp

Filesize
624KB

Download
memory/1280-1-0x0000000000E90000-0x0000000000F96000-memory.dmp

Filesize
1.0MB

Download
memory/1280-51-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/1280-5-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/1280-4-0x0000000005B30000-0x0000000005B3A000-memory.dmp

Filesize
40KB

Download
memory/2180-92-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2180-78-0x0000000007590000-0x0000000007C0A000-memory.dmp

Filesize
6.5MB

Download
memory/2180-30-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2180-16-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2180-84-0x0000000007190000-0x00000000071A4000-memory.dmp

Filesize
80KB

Download
memory/2180-80-0x0000000006FC0000-0x0000000006FCA000-memory.dmp

Filesize
40KB

Download
memory/2180-79-0x0000000006F50000-0x0000000006F6A000-memory.dmp

Filesize
104KB

Download
memory/2180-18-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2180-67-0x0000000006E10000-0x0000000006EB3000-memory.dmp

Filesize
652KB

Download
memory/2180-55-0x0000000006DD0000-0x0000000006E02000-memory.dmp

Filesize
200KB

Download
memory/2180-66-0x0000000006D90000-0x0000000006DAE000-memory.dmp

Filesize
120KB

Download
memory/2180-17-0x0000000004D20000-0x0000000005348000-memory.dmp

Filesize
6.2MB

Download
memory/2180-50-0x0000000005C20000-0x0000000005C3E000-memory.dmp

Filesize
120KB

Download
memory/2180-52-0x0000000005C50000-0x0000000005C9C000-memory.dmp

Filesize
304KB

Download
memory/2180-15-0x0000000004670000-0x00000000046A6000-memory.dmp

Filesize
216KB

Download
memory/2180-56-0x000000006F830000-0x000000006F87C000-memory.dmp

Filesize
304KB

Download
memory/2420-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2420-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2860-93-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2860-19-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2860-23-0x0000000005BE0000-0x0000000005C46000-memory.dmp

Filesize
408KB

Download
memory/2860-22-0x0000000005A80000-0x0000000005AE6000-memory.dmp

Filesize
408KB

Download
memory/2860-86-0x0000000007860000-0x0000000007868000-memory.dmp

Filesize
32KB

Download
memory/2860-85-0x0000000007880000-0x000000000789A000-memory.dmp

Filesize
104KB

Download
memory/2860-83-0x0000000007770000-0x000000000777E000-memory.dmp

Filesize
56KB

Download
memory/2860-82-0x0000000007740000-0x0000000007751000-memory.dmp

Filesize
68KB

Download
memory/2860-81-0x00000000077C0000-0x0000000007856000-memory.dmp

Filesize
600KB

Download
memory/2860-49-0x0000000074D30000-0x00000000754E0000-memory.dmp

Filesize
7.7MB

Download
memory/2860-68-0x000000006F830000-0x000000006F87C000-memory.dmp

Filesize
304KB

Download
memory/2860-31-0x0000000005C50000-0x0000000005FA4000-memory.dmp

Filesize
3.3MB

Download
memory/2860-21-0x0000000005270000-0x0000000005292000-memory.dmp

Filesize
136KB

Download