remcos | d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9

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
20-09-2024 01:46

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General

Target

d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
Size

988KB
MD5

dc6296c1f5ec3b6e4dcbc33d0fcf3616
SHA1

64c81ccb99415efe3aaffcfeea93d15fc08b735b
SHA256

d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9
SHA512

e28695c316d1b5d2d35726ed3f68ebccc1d07083d3b533b90ac9a1cf697ebbee8794278625107f305e22b55c68a1a820a73103f208f6f6a0f40ecf24f4b5db98
SSDEEP

24576:72R1pA1DLK3qSmuyhBaNV8DDCANtsMFSzraULSgk:OPA1DLKagy4V8DftsgSzraR

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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
3380	powershell.exe
2036	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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2468	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
3380	powershell.exe
2036	powershell.exe
4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
2036	powershell.exe
3380	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
Token: SeDebugPrivilege	3380	powershell.exe
Token: SeDebugPrivilege	2036	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 3380	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	87
PID 4800 wrote to memory of 3380	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	87
PID 4800 wrote to memory of 3380	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	87
PID 4800 wrote to memory of 2036	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	89
PID 4800 wrote to memory of 2036	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	89
PID 4800 wrote to memory of 2036	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	89
PID 4800 wrote to memory of 2468	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	91
PID 4800 wrote to memory of 2468	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	91
PID 4800 wrote to memory of 2468	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	91
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93
PID 4800 wrote to memory of 1692	4800	d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe	93

C:\Users\Admin\AppData\Local\Temp\d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
"C:\Users\Admin\AppData\Local\Temp\d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.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:4800
- 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\d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3380
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YHWyXapflg.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2036
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YHWyXapflg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF87.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2468
- C:\Users\Admin\AppData\Local\Temp\d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe
  "C:\Users\Admin\AppData\Local\Temp\d776f6152105609e96a665bf681b71c945da8341b326410ee20e6a31b234d4c9.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1692

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

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Downloads

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
9a0463d075403946566e2dfe1b906d4d

SHA1
eaca07f3932e5831ae4fa7961717fd53cac0783f

SHA256
7a138ae495d99bfe59675eba16e5a8d8422da4bce5cca968645a57c13e35ecff

SHA512
fcd6dfb142fa1b3446d455e43f7326585e2999d36353afc50f0a911262342f4b6a40c6024faf0886f61a7dae6dc21d0943d72029b82cbd5454f83066fb1b7798

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_umifmvrc.vvj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBF87.tmp

Filesize
1KB

MD5
62b0c13d063d313b4d519362059e5e1a

SHA1
22edefddcdb87bcc4e4f68966c34317c6989e5b9

SHA256
8c580c279a446303b1649d646e14aa0e9ad3e20da8b9a3cd55536c72ad2d8fc2

SHA512
e4a3addf52a3a98b96a40abf7a5a2263f0f8da3a0ca9cb96b7ceb5d39070f2b9e39b06296df293fe72b87d7ec8ec475fa63e289416e35e8410e601b9321453c5

Download Submit
memory/1692-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1692-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2036-86-0x0000000007680000-0x000000000769A000-memory.dmp

Filesize
104KB

Download
memory/2036-79-0x00000000079E0000-0x000000000805A000-memory.dmp

Filesize
6.5MB

Download
memory/2036-22-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2036-21-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2036-93-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2036-20-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/2036-85-0x0000000007580000-0x0000000007594000-memory.dmp

Filesize
80KB

Download
memory/2036-81-0x00000000073B0000-0x00000000073BA000-memory.dmp

Filesize
40KB

Download
memory/2036-26-0x0000000005150000-0x00000000051B6000-memory.dmp

Filesize
408KB

Download
memory/2036-25-0x00000000050E0000-0x0000000005146000-memory.dmp

Filesize
408KB

Download
memory/2036-80-0x0000000007130000-0x000000000714A000-memory.dmp

Filesize
104KB

Download
memory/2036-52-0x0000000005FF0000-0x000000000600E000-memory.dmp

Filesize
120KB

Download
memory/2036-53-0x0000000006590000-0x00000000065DC000-memory.dmp

Filesize
304KB

Download
memory/2036-68-0x0000000007000000-0x00000000070A3000-memory.dmp

Filesize
652KB

Download
memory/2036-55-0x0000000006FC0000-0x0000000006FF2000-memory.dmp

Filesize
200KB

Download
memory/2036-56-0x0000000075260000-0x00000000752AC000-memory.dmp

Filesize
304KB

Download
memory/2036-66-0x00000000065E0000-0x00000000065FE000-memory.dmp

Filesize
120KB

Download
memory/3380-15-0x00000000026B0000-0x00000000026E6000-memory.dmp

Filesize
216KB

Download
memory/3380-24-0x0000000005000000-0x0000000005022000-memory.dmp

Filesize
136KB

Download
memory/3380-17-0x00000000050F0000-0x0000000005718000-memory.dmp

Filesize
6.2MB

Download
memory/3380-37-0x0000000005A20000-0x0000000005D74000-memory.dmp

Filesize
3.3MB

Download
memory/3380-83-0x00000000074F0000-0x0000000007501000-memory.dmp

Filesize
68KB

Download
memory/3380-18-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3380-82-0x0000000007570000-0x0000000007606000-memory.dmp

Filesize
600KB

Download
memory/3380-94-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3380-84-0x0000000007520000-0x000000000752E000-memory.dmp

Filesize
56KB

Download
memory/3380-19-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3380-16-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/3380-87-0x0000000007610000-0x0000000007618000-memory.dmp

Filesize
32KB

Download
memory/3380-69-0x0000000075260000-0x00000000752AC000-memory.dmp

Filesize
304KB

Download
memory/4800-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/4800-10-0x0000000009910000-0x00000000099AC000-memory.dmp

Filesize
624KB

Download
memory/4800-51-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4800-9-0x0000000007290000-0x000000000734E000-memory.dmp

Filesize
760KB

Download
memory/4800-8-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4800-7-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/4800-6-0x0000000005780000-0x0000000005790000-memory.dmp

Filesize
64KB

Download
memory/4800-5-0x00000000749B0000-0x0000000075160000-memory.dmp

Filesize
7.7MB

Download
memory/4800-4-0x0000000005570000-0x000000000557A000-memory.dmp

Filesize
40KB

Download
memory/4800-3-0x00000000054C0000-0x0000000005552000-memory.dmp

Filesize
584KB

Download
memory/4800-2-0x0000000005B40000-0x00000000060E4000-memory.dmp

Filesize
5.6MB

Download
memory/4800-1-0x0000000000B30000-0x0000000000C2C000-memory.dmp

Filesize
1008KB

Download