remcos | 09c15114a15d5569cb510bbe093d1a9dc1fc7f6dc255aa6b0ef9077156c2f6ac

Analysis

max time kernel
153s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 15:15

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General

Target

8560d2cdf6bd8ffb30fe031081360c1f.exe
Size

1024.0MB
MD5

a832f6cf4b13db85c4e3d4a5c563800d
SHA1

af788bb64b532ad62a64af98f6eeec316efcbd72
SHA256

52e9fae2db9e0b5af5c4e28c52508a482348c085fd83e3a2d549c5d676b24470
SHA512

7ee6c7c5529ee55f642c79d1ccd160e1d8183b13edf216a9693163f9acf84c6d355dcd028c41c1f022bc1799ba8852eff30f78e3ea68fa505b606e46c08c2547
SSDEEP

12288:75RVeIv1Jyhik2XF62YPtnsMg9t4q78cjNgT8Yz48h7UJ:9RVeIv1JygrV6XtsRVUS81UJ

Score

10^/10

remcos plata discovery rat

Malware Config

Extracted

Family

remcos

Botnet

PLATA

comercio43.con-ip.com:1835

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
registros.dat
keylog_flag
false
keylog_folder
data34
mouse_option
false
mutex
kiustong-7N6PEP
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Capturas de pantalla
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
3248	AppData.exe
932	AppData.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2224 set thread context of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 3248 set thread context of 5020	3248	AppData.exe	102
PID 932 set thread context of 3324	932	AppData.exe	111

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3432	3580	WerFault.exe	85
4468	3324	WerFault.exe	111

System Location Discovery: System Language Discovery 1 TTPs 18 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	AppData.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AppData.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8560d2cdf6bd8ffb30fe031081360c1f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1504	schtasks.exe
3096	schtasks.exe
724	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5020	RegAsm.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 3580	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	85
PID 2224 wrote to memory of 1660	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	86
PID 2224 wrote to memory of 1660	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	86
PID 2224 wrote to memory of 1660	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	86
PID 2224 wrote to memory of 4636	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	89
PID 2224 wrote to memory of 4636	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	89
PID 2224 wrote to memory of 4636	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	89
PID 4636 wrote to memory of 1504	4636	cmd.exe	91
PID 4636 wrote to memory of 1504	4636	cmd.exe	91
PID 4636 wrote to memory of 1504	4636	cmd.exe	91
PID 2224 wrote to memory of 2396	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	93
PID 2224 wrote to memory of 2396	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	93
PID 2224 wrote to memory of 2396	2224	8560d2cdf6bd8ffb30fe031081360c1f.exe	93
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 5020	3248	AppData.exe	102
PID 3248 wrote to memory of 1884	3248	AppData.exe	103
PID 3248 wrote to memory of 1884	3248	AppData.exe	103
PID 3248 wrote to memory of 1884	3248	AppData.exe	103
PID 3248 wrote to memory of 388	3248	AppData.exe	105
PID 3248 wrote to memory of 388	3248	AppData.exe	105
PID 3248 wrote to memory of 388	3248	AppData.exe	105
PID 388 wrote to memory of 3096	388	cmd.exe	107
PID 388 wrote to memory of 3096	388	cmd.exe	107
PID 388 wrote to memory of 3096	388	cmd.exe	107
PID 3248 wrote to memory of 2108	3248	AppData.exe	108
PID 3248 wrote to memory of 2108	3248	AppData.exe	108
PID 3248 wrote to memory of 2108	3248	AppData.exe	108
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 3324	932	AppData.exe	111
PID 932 wrote to memory of 2220	932	AppData.exe	112
PID 932 wrote to memory of 2220	932	AppData.exe	112
PID 932 wrote to memory of 2220	932	AppData.exe	112
PID 932 wrote to memory of 2292	932	AppData.exe	115

C:\Users\Admin\AppData\Local\Temp\8560d2cdf6bd8ffb30fe031081360c1f.exe
"C:\Users\Admin\AppData\Local\Temp\8560d2cdf6bd8ffb30fe031081360c1f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3580
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 532
    3⤵
    - Program crash
    PID:3432
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\AppData"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1660
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1504
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Local\Temp\8560d2cdf6bd8ffb30fe031081360c1f.exe" "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3580 -ip 3580
1⤵
PID:2264

C:\Users\Admin\AppData\Roaming\AppData\AppData.exe
C:\Users\Admin\AppData\Roaming\AppData\AppData.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5020
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\AppData"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1884
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:388
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3096
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe" "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2108

C:\Users\Admin\AppData\Roaming\AppData\AppData.exe
C:\Users\Admin\AppData\Roaming\AppData\AppData.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:932
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3324
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3324 -s 648
    3⤵
    - Program crash
    PID:4468
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\AppData"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2220
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2292
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\AppData\AppData.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:724
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe" "C:\Users\Admin\AppData\Roaming\AppData\AppData.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3324 -ip 3324
1⤵
PID:3404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\data34\registros.dat

Filesize
144B

MD5
43e12e85f044eb18a59c7b2299e38775

SHA1
4c67b5011395fc6e9750b161e0f9cd7a956562f0

SHA256
79fe64f1e7d0a919605618fa9551ff73b1be2eaeb58eb04e45df519d514b6f80

SHA512
7fda1be0bc8ae57d83f52d745164e21496c1bb17377af65f97001cf60084c04b0700bc704cd25f6b1897c53e765f3a53d68457f283cc618db5f378674724bf6c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AppData.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
memory/2224-1-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2224-2-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/2224-18-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/2224-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/3324-64-0x0000000000560000-0x00000000005E2000-memory.dmp

Filesize
520KB

Download
memory/3324-58-0x0000000000560000-0x00000000005E2000-memory.dmp

Filesize
520KB

Download
memory/3324-63-0x0000000000560000-0x00000000005E2000-memory.dmp

Filesize
520KB

Download
memory/3580-8-0x0000000000540000-0x00000000005C2000-memory.dmp

Filesize
520KB

Download
memory/3580-14-0x0000000000540000-0x00000000005C2000-memory.dmp

Filesize
520KB

Download
memory/3580-13-0x0000000000540000-0x00000000005C2000-memory.dmp

Filesize
520KB

Download
memory/3580-3-0x0000000000540000-0x00000000005C2000-memory.dmp

Filesize
520KB

Download
memory/5020-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/5020-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads