remcos | 0cddb84586618293e29c674c2a3ac9954b65c9da74bbc75e75e88cd229d1a88a

Analysis

max time kernel
78s
max time network
80s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17/09/2024, 18:16 UTC

Sharing

Copy URL

Twitter E-mail

Reason

Machine shutdown

Report Analysis Logs

General

Target

Trisha 2023 OrganizerPDF.exe
Size

6.1MB
MD5

4864a55cff27f686023456a22371e790
SHA1

6ed30c0371fe167d38411bfa6d720fcdcacc4f4c
SHA256

08c7fb6067acc8ac207d28ab616c9ea5bc0d394956455d6a3eecb73f8010f7a2
SHA512

4bd3a16435cca6ce7a7aa829eb967619a8b7c02598474e634442cffc55935870d54d844a04496bf9c7e8c29c40fae59ac6eb39c8550c091d06a28211491d0bfb
SSDEEP

98304:VZQIM+/nv/CDoAkYwpAa5ge1zZ/jtdZwUkQ:bJCKlA2VKUz

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

privmerkt.com:3903

nwemarkets.com:3727

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-NOOI58
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

Executes dropped EXE 2 IoCs

pid	Process
2964	build.exe
2948	build.exe

Loads dropped DLL 2 IoCs

pid	Process
1976	Trisha 2023 OrganizerPDF.exe
2964	build.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\CertainThings = "C:\\Users\\Admin\\Pictures\\GamingUnu\\GamingHeadset.exe"	build.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\*UpdaterCisco = "rundll32.exe C:\\Users\\Admin\\Documents\\CiscoUpdater000_PARTIAL.dll,EntryPoint"	reg.exe

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 6 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	build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trisha 2023 OrganizerPDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Trisha 2023 OrganizerPDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	build.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1976	Trisha 2023 OrganizerPDF.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 1976	1260	Trisha 2023 OrganizerPDF.exe	30
PID 1260 wrote to memory of 2104	1260	Trisha 2023 OrganizerPDF.exe	31
PID 1260 wrote to memory of 2104	1260	Trisha 2023 OrganizerPDF.exe	31
PID 1260 wrote to memory of 2104	1260	Trisha 2023 OrganizerPDF.exe	31
PID 1260 wrote to memory of 2104	1260	Trisha 2023 OrganizerPDF.exe	31
PID 2104 wrote to memory of 2800	2104	cmd.exe	33
PID 2104 wrote to memory of 2800	2104	cmd.exe	33
PID 2104 wrote to memory of 2800	2104	cmd.exe	33
PID 2104 wrote to memory of 2800	2104	cmd.exe	33
PID 1976 wrote to memory of 2964	1976	Trisha 2023 OrganizerPDF.exe	36
PID 1976 wrote to memory of 2964	1976	Trisha 2023 OrganizerPDF.exe	36
PID 1976 wrote to memory of 2964	1976	Trisha 2023 OrganizerPDF.exe	36
PID 1976 wrote to memory of 2964	1976	Trisha 2023 OrganizerPDF.exe	36
PID 2964 wrote to memory of 2948	2964	build.exe	37
PID 2964 wrote to memory of 2948	2964	build.exe	37
PID 2964 wrote to memory of 2948	2964	build.exe	37
PID 2964 wrote to memory of 2948	2964	build.exe	37
PID 2964 wrote to memory of 2948	2964	build.exe	37
PID 2964 wrote to memory of 2948	2964	build.exe	37

C:\Users\Admin\AppData\Local\Temp\Trisha 2023 OrganizerPDF.exe
"C:\Users\Admin\AppData\Local\Temp\Trisha 2023 OrganizerPDF.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\Trisha 2023 OrganizerPDF.exe
  "C:\Users\Admin\AppData\Local\Temp\Trisha 2023 OrganizerPDF.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1976
- - C:\Users\Admin\AppData\Local\Temp\build.exe
    "C:\Users\Admin\AppData\Local\Temp\build.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2964
  - - C:\Users\Admin\AppData\Local\Temp\build.exe
      "C:\Users\Admin\AppData\Local\Temp\build.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      PID:2948
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*UpdaterCisco" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CiscoUpdater000_PARTIAL.dll",EntryPoint /f & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*UpdaterCisco" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\CiscoUpdater000_PARTIAL.dll",EntryPoint /f
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2800

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:1972

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1176

Network

DNS

privmerkt.com

Trisha 2023 OrganizerPDF.exe

Remote address:

8.8.8.8:53

Request

privmerkt.com

IN A

Response

privmerkt.com

IN A

172.94.89.5
DNS

geoplugin.net

build.exe

Remote address:

8.8.8.8:53

Request

geoplugin.net

IN A

Response

geoplugin.net

IN A

178.237.33.50
GET

http://geoplugin.net/json.gp

Trisha 2023 OrganizerPDF.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: Tue, 17 Sep 2024 18:17:22 GMT
server: Apache
content-length: 955
content-type: application/json; charset=utf-8
cache-control: public, max-age=300
access-control-allow-origin: *
DNS

nwemarkets.com

build.exe

Remote address:

8.8.8.8:53

Request

nwemarkets.com

IN A

Response

nwemarkets.com

IN A

45.74.15.194
GET

http://geoplugin.net/json.gp

build.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: Tue, 17 Sep 2024 18:18:01 GMT
server: Apache
content-length: 955
content-type: application/json; charset=utf-8
cache-control: public, max-age=300
access-control-allow-origin: *

172.94.89.5:3903

privmerkt.com

tls

Trisha 2023 OrganizerPDF.exe

3.1kB
1.4kB
13
13
172.94.89.5:3903

privmerkt.com

tls

Trisha 2023 OrganizerPDF.exe

38.3kB
1.9MB
793
1390
178.237.33.50:80

http://geoplugin.net/json.gp

http

Trisha 2023 OrganizerPDF.exe

347 B
2.5kB
6
4

HTTP Request

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

HTTP Response

200
45.74.15.194:3727

nwemarkets.com

tls

build.exe

3.2kB
1.3kB
12
12
178.237.33.50:80

http://geoplugin.net/json.gp

http

build.exe

347 B
1.3kB
6
3

HTTP Request

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

HTTP Response

200

8.8.8.8:53

privmerkt.com

dns

Trisha 2023 OrganizerPDF.exe

59 B
75 B
1
1

DNS Request

privmerkt.com

DNS Response

172.94.89.5
8.8.8.8:53

geoplugin.net

dns

build.exe

59 B
75 B
1
1

DNS Request

geoplugin.net

DNS Response

178.237.33.50
8.8.8.8:53

nwemarkets.com

dns

build.exe

60 B
76 B
1
1

DNS Request

nwemarkets.com

DNS Response

45.74.15.194

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 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

\Users\Admin\AppData\Local\Temp\build.exe

Filesize
1.8MB

MD5
cbacc158e69f7fefb0f469ddf785698b

SHA1
a5edae4b2d1531338f9bb43d4795180555a67327

SHA256
5cf31c39a21d82668216c8530facec42939660961ae34a5d0afd4fbd9a2a7b6d

SHA512
cdf2a76d0df19a1b1be5f4b3f72b640ca9445a8f506c6d61646aa04c2afe1ed2ebf2ebe61ac433bfc0bc87ee39af2d896b46a0fc3a5634572f0fa87beecb5016

Download Submit
memory/1260-14-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-2-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-1-0x000000001017D000-0x0000000010188000-memory.dmp

Filesize
44KB

Download
memory/1260-4-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-0-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-13-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-23-0x000000001017D000-0x0000000010188000-memory.dmp

Filesize
44KB

Download
memory/1260-7-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1260-19-0x0000000010000000-0x00000000101F4000-memory.dmp

Filesize
2.0MB

Download
memory/1976-32-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-26-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-8-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-22-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-18-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-21-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-24-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-25-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-27-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-20-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-30-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-31-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1976-12-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-39-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-65-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-63-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/1976-64-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-55-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-57-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-67-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-49-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-53-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-48-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2948-54-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-62-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-56-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-61-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2948-58-0x00000000001C0000-0x0000000000242000-memory.dmp

Filesize
520KB

Download
memory/2964-51-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2964-40-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2964-41-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2964-42-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2964-43-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download
memory/2964-50-0x0000000000400000-0x00000000005CB000-memory.dmp

Filesize
1.8MB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

HTTP Request

HTTP Response

DNS Request

DNS Response

DNS Request

DNS Response

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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