remcos | 2893e5b3a7ec45648d209ffe13b912994e6cc867400eb5730d89d06deac41713

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 13:47

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General

Target

61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
Size

1006KB
MD5

c8da5e64c79548b8447b7544517442db
SHA1

e8bc50e2f1fe84fe96523a40d2a0abfd01c72bf7
SHA256

61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f
SHA512

1d3e062b225f87bc1bde79b25b9bdd0499eda092817b83436d1f1760da9a928f9dcf07456485ce472559f7f4b6e5e7ac0a7af1069cbc1983be0d906cac4893e1
SSDEEP

24576:/doEWj+MjS9+ZW8Z6+soNQMOHGRukDq7IR0RJgU:i1jm+w8dCHGRuEq7IRqh

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

45.89.247.135:2404

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-7IHQDG
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2796	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	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3520 set thread context of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.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
4896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2796	powershell.exe
2796	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3100	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
Token: SeDebugPrivilege	2796	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3520 wrote to memory of 2796	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	93
PID 3520 wrote to memory of 2796	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	93
PID 3520 wrote to memory of 2796	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	93
PID 3520 wrote to memory of 4896	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	95
PID 3520 wrote to memory of 4896	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	95
PID 3520 wrote to memory of 4896	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	95
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97
PID 3520 wrote to memory of 3100	3520	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	97

C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
"C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.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:3520
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\unpuLJjbqcRkR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2796
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\unpuLJjbqcRkR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE0FA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4896
- C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
  "C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  PID:3100

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\Temp\__PSScriptPolicyTest_fuicsymc.rxn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE0FA.tmp

Filesize
1KB

MD5
c7ca99b22b9d123d8b728d03ce20542d

SHA1
27ab593890f117dba423af3878f9809c8981bbc8

SHA256
390e7ebb66ee4a2a784fe71365fc49d2d775a86c732b43493adf3958dbafa804

SHA512
5da6c395825a87b714b572718a989d8064344d548f35b6d2e67a2658c3489eef572fd781553ad6c94dea1235bdb09b0206402e7aecb8b122f36c3ab92bed0cc2

Download Submit
memory/2796-16-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2796-27-0x0000000005690000-0x00000000056B2000-memory.dmp

Filesize
136KB

Download
memory/2796-65-0x0000000007AC0000-0x0000000007AD4000-memory.dmp

Filesize
80KB

Download
memory/2796-64-0x0000000007AB0000-0x0000000007ABE000-memory.dmp

Filesize
56KB

Download
memory/2796-63-0x0000000007A80000-0x0000000007A91000-memory.dmp

Filesize
68KB

Download
memory/2796-62-0x0000000007B00000-0x0000000007B96000-memory.dmp

Filesize
600KB

Download
memory/2796-61-0x0000000007900000-0x000000000790A000-memory.dmp

Filesize
40KB

Download
memory/2796-59-0x0000000007ED0000-0x000000000854A000-memory.dmp

Filesize
6.5MB

Download
memory/2796-60-0x0000000007880000-0x000000000789A000-memory.dmp

Filesize
104KB

Download
memory/2796-15-0x0000000004FA0000-0x0000000004FD6000-memory.dmp

Filesize
216KB

Download
memory/2796-29-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/2796-67-0x0000000007BA0000-0x0000000007BA8000-memory.dmp

Filesize
32KB

Download
memory/2796-58-0x0000000007740000-0x00000000077E3000-memory.dmp

Filesize
652KB

Download
memory/2796-18-0x0000000005780000-0x0000000005DA8000-memory.dmp

Filesize
6.2MB

Download
memory/2796-19-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2796-45-0x0000000006B20000-0x0000000006B52000-memory.dmp

Filesize
200KB

Download
memory/2796-57-0x0000000006B00000-0x0000000006B1E000-memory.dmp

Filesize
120KB

Download
memory/2796-47-0x00000000712F0000-0x000000007133C000-memory.dmp

Filesize
304KB

Download
memory/2796-43-0x00000000065F0000-0x000000000663C000-memory.dmp

Filesize
304KB

Download
memory/2796-42-0x0000000006560000-0x000000000657E000-memory.dmp

Filesize
120KB

Download
memory/2796-37-0x0000000005F70000-0x00000000062C4000-memory.dmp

Filesize
3.3MB

Download
memory/2796-70-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2796-30-0x0000000005F00000-0x0000000005F66000-memory.dmp

Filesize
408KB

Download
memory/2796-66-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

Filesize
104KB

Download
memory/3100-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-121-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3100-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3520-31-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3520-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/3520-1-0x0000000000C40000-0x0000000000D42000-memory.dmp

Filesize
1.0MB

Download
memory/3520-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/3520-3-0x00000000055D0000-0x0000000005662000-memory.dmp

Filesize
584KB

Download
memory/3520-4-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3520-5-0x00000000056A0000-0x00000000056AA000-memory.dmp

Filesize
40KB

Download
memory/3520-6-0x0000000005990000-0x00000000059A8000-memory.dmp

Filesize
96KB

Download
memory/3520-7-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/3520-8-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3520-9-0x0000000006840000-0x0000000006900000-memory.dmp

Filesize
768KB

Download
memory/3520-10-0x000000000A4F0000-0x000000000A58C000-memory.dmp

Filesize
624KB

Download