remcos | 7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 20:18

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General

Target

rPO104.exe
Size

924KB
MD5

8fd5f061761645838e92744a0722f87d
SHA1

565a31f86b886a26cc8c10ce3780a256e4157f55
SHA256

7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9
SHA512

8d67b4408e987f2cf6fcd938058b2179bb36a703990c52b7a1cfc6058a4b568d7785a321782a0c2107091a1622e3f57e04a6109f851471e7f7064bda7b007122
SSDEEP

24576:K9o/NseOLSe+/1k38m8IyfhFTG7KQTCaAhkqG72:K2JarEZytpMGq

Score

10^/10

remcos mekus discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

mekus

dpm-sael.com:2017

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
meckus-ODY51K
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3532	powershell.exe
4988	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	rPO104.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1972 set thread context of 884	1972	rPO104.exe	100

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 5 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	rPO104.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rPO104.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
5040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3532	powershell.exe
4988	powershell.exe
4988	powershell.exe
3532	powershell.exe
1972	rPO104.exe
1972	rPO104.exe
1972	rPO104.exe
1972	rPO104.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3532	powershell.exe
Token: SeDebugPrivilege	4988	powershell.exe
Token: SeDebugPrivilege	1972	rPO104.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
884	rPO104.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 3532	1972	rPO104.exe	92
PID 1972 wrote to memory of 3532	1972	rPO104.exe	92
PID 1972 wrote to memory of 3532	1972	rPO104.exe	92
PID 1972 wrote to memory of 4988	1972	rPO104.exe	94
PID 1972 wrote to memory of 4988	1972	rPO104.exe	94
PID 1972 wrote to memory of 4988	1972	rPO104.exe	94
PID 1972 wrote to memory of 5040	1972	rPO104.exe	96
PID 1972 wrote to memory of 5040	1972	rPO104.exe	96
PID 1972 wrote to memory of 5040	1972	rPO104.exe	96
PID 1972 wrote to memory of 4084	1972	rPO104.exe	98
PID 1972 wrote to memory of 4084	1972	rPO104.exe	98
PID 1972 wrote to memory of 4084	1972	rPO104.exe	98
PID 1972 wrote to memory of 1776	1972	rPO104.exe	99
PID 1972 wrote to memory of 1776	1972	rPO104.exe	99
PID 1972 wrote to memory of 1776	1972	rPO104.exe	99
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100
PID 1972 wrote to memory of 884	1972	rPO104.exe	100

C:\Users\Admin\AppData\Local\Temp\rPO104.exe
"C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3532
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pNamqURus.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4988
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNamqURus" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA42F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5040
- C:\Users\Admin\AppData\Local\Temp\rPO104.exe
  "C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
  2⤵
  PID:4084
- C:\Users\Admin\AppData\Local\Temp\rPO104.exe
  "C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
  2⤵
  PID:1776
- C:\Users\Admin\AppData\Local\Temp\rPO104.exe
  "C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
9e76758ec2c73ea966e17127ceffa663

SHA1
a51de30d8fd34a4b297f146ccfa3ed0389f49c31

SHA256
d17591b1f3481a8ede3c5dacb9d715ba4841536d1152865bc29210ce483099da

SHA512
15183f40822e7b19a9bf71d307d598f454d24f2bd33f03667d83f6b5b4aa249d2d35a68efced70767b11424170b9a2a98f05b5336f339c1336945881cf08a57b

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

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
f3e052fa45df8fb2f739dfe35cf3753c

SHA1
e52830a3854e13a813a0cc29e39629d79d8d8f14

SHA256
5d506f2adc74dfb25aa97ffde10c13fc5e1171615d275c86a49e91338c11d584

SHA512
bdffeb10b0fb0c276bf358a08545417ac7d5679a4641b7aa0f07a91614550c5adbfa4ff5df913f8ac6ac9f9e325bc3f4103c41e91abc2abf0ab3a3c242aa1f75

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qscvtkl1.4u1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA42F.tmp

Filesize
1KB

MD5
805eaed273e0999afac40413268f9d86

SHA1
7325923f0b59db2b0a2d6e7a9212cb2f8922e92a

SHA256
f2a984b15cefe00531d106b05859dcb6f2ae06c718f0ffb662438a194560a4c9

SHA512
2dbbb61a5b08bfa471a096cb39607c85513ba77423916412461d4b40f16f74a62adfa03503900da4f542438db40487aa6e724a41bd79a9ffc8e2c1a1099d16fb

Download Submit
memory/884-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-130-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-147-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-146-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-143-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-142-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-139-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-137-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-136-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-134-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-129-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/884-113-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1972-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1972-6-0x0000000005180000-0x0000000005190000-memory.dmp

Filesize
64KB

Download
memory/1972-8-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1972-53-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/1972-3-0x0000000004F50000-0x0000000004FE2000-memory.dmp

Filesize
584KB

Download
memory/1972-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/1972-5-0x0000000004F10000-0x0000000004F1A000-memory.dmp

Filesize
40KB

Download
memory/1972-2-0x0000000005500000-0x0000000005AA4000-memory.dmp

Filesize
5.6MB

Download
memory/1972-1-0x0000000000420000-0x000000000050C000-memory.dmp

Filesize
944KB

Download
memory/1972-10-0x0000000008CA0000-0x0000000008D3C000-memory.dmp

Filesize
624KB

Download
memory/1972-9-0x0000000006420000-0x00000000064E0000-memory.dmp

Filesize
768KB

Download
memory/1972-7-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/3532-24-0x0000000005A70000-0x0000000005AD6000-memory.dmp

Filesize
408KB

Download
memory/3532-23-0x0000000005910000-0x0000000005976000-memory.dmp

Filesize
408KB

Download
memory/3532-15-0x00000000027E0000-0x0000000002816000-memory.dmp

Filesize
216KB

Download
memory/3532-16-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3532-17-0x00000000052E0000-0x0000000005908000-memory.dmp

Filesize
6.2MB

Download
memory/3532-84-0x0000000007660000-0x0000000007674000-memory.dmp

Filesize
80KB

Download
memory/3532-18-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3532-82-0x0000000007620000-0x0000000007631000-memory.dmp

Filesize
68KB

Download
memory/3532-81-0x00000000076A0000-0x0000000007736000-memory.dmp

Filesize
600KB

Download
memory/3532-80-0x00000000074A0000-0x00000000074AA000-memory.dmp

Filesize
40KB

Download
memory/3532-22-0x0000000005230000-0x0000000005252000-memory.dmp

Filesize
136KB

Download
memory/3532-78-0x0000000007A80000-0x00000000080FA000-memory.dmp

Filesize
6.5MB

Download
memory/3532-68-0x000000006FCE0000-0x000000006FD2C000-memory.dmp

Filesize
304KB

Download
memory/3532-93-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4988-66-0x00000000072B0000-0x00000000072CE000-memory.dmp

Filesize
120KB

Download
memory/4988-56-0x000000006FCE0000-0x000000006FD2C000-memory.dmp

Filesize
304KB

Download
memory/4988-55-0x00000000066C0000-0x00000000066F2000-memory.dmp

Filesize
200KB

Download
memory/4988-44-0x00000000060F0000-0x000000000610E000-memory.dmp

Filesize
120KB

Download
memory/4988-46-0x0000000006110000-0x000000000615C000-memory.dmp

Filesize
304KB

Download
memory/4988-67-0x00000000072E0000-0x0000000007383000-memory.dmp

Filesize
652KB

Download
memory/4988-39-0x0000000005AB0000-0x0000000005E04000-memory.dmp

Filesize
3.3MB

Download
memory/4988-79-0x0000000007410000-0x000000000742A000-memory.dmp

Filesize
104KB

Download
memory/4988-20-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4988-19-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4988-83-0x0000000007640000-0x000000000764E000-memory.dmp

Filesize
56KB

Download
memory/4988-85-0x0000000007750000-0x000000000776A000-memory.dmp

Filesize
104KB

Download
memory/4988-86-0x0000000007730000-0x0000000007738000-memory.dmp

Filesize
32KB

Download
memory/4988-92-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download