remcos | 678bea007fe0302874c28fa618e025066b93681f6b4747fef65992e69746cd77

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2025 13:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Purchase Order.exe
Size

1.1MB
MD5

d5261204d9c158b2bab4272f89f7df17
SHA1

11d82d35d6d5ef250b9cedf4d1f7cd98c0246546
SHA256

27e9c5e774bf0946e99a7f34d14ded33ca1c236765fbcfda83e234d70d15c652
SHA512

2710b22611fca8f90c38c715755a4ec34eec2fd176df45c68c4712d6a5b2803643f09bc05d9d08eb2981f4985355e4d1259eb7a42c8766aabc3f9f1badef4564
SSDEEP

24576:bzls/WgXN832qWivcsegk5vQ2F+wK9ADZyM6RGk:YN832q7vwrQW+wYl

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

2.58.56.182:2404

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
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-GM05WY
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
Remcos family
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
2880	powershell.exe
3976	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	Purchase Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 404 set thread context of 3952	404	Purchase Order.exe	96

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	Purchase Order.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
1768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2880	powershell.exe
2880	powershell.exe
3976	powershell.exe
3976	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	powershell.exe
Token: SeDebugPrivilege	3976	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 2880	404	Purchase Order.exe	89
PID 404 wrote to memory of 2880	404	Purchase Order.exe	89
PID 404 wrote to memory of 2880	404	Purchase Order.exe	89
PID 404 wrote to memory of 3976	404	Purchase Order.exe	91
PID 404 wrote to memory of 3976	404	Purchase Order.exe	91
PID 404 wrote to memory of 3976	404	Purchase Order.exe	91
PID 404 wrote to memory of 1768	404	Purchase Order.exe	94
PID 404 wrote to memory of 1768	404	Purchase Order.exe	94
PID 404 wrote to memory of 1768	404	Purchase Order.exe	94
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96
PID 404 wrote to memory of 3952	404	Purchase Order.exe	96

C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- 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\Purchase Order.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hYpnBXIk.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3976
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hYpnBXIk" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF65F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1768
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
  2⤵
  PID:3952

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

Loading Replay Monitor...

Downloads

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
f5fe673a9f0e7c9e6706dfe16626e0b1

SHA1
f3bfad0e3767aff85907d7f6875a417ca9740101

SHA256
abb7160d404e75f0356f6510e501d96a8fbd2b70204765c3a1e5474a38c504a6

SHA512
c49c0a4cc9ce139da672ffefe3e4bd7ba806ba2279bc78ad26b7ade8c8e5d346c17aacb9224f850c500aa8412c64825ffdbf83abff46b5dec39e3de038f4181f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ksf0lrez.wiw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF65F.tmp

Filesize
1KB

MD5
dd56213c5b928334c000014d5bb103b2

SHA1
bf5a3555ad970c08f0addcd8aec794bfd3404e98

SHA256
31954181c9c758a4f5af8d5f2435e4185f591a2fd329f659e25234f1ebd76ca1

SHA512
8f9a431c0d9e1afa50e13176aa1cea2602a94855efabfb1459149fbb7e24d5cd70e620104e7984f0531ea011b86d6a4c1085e91f14a8083e9386fcb53f7a8c25

Download Submit
memory/404-0-0x000000007531E000-0x000000007531F000-memory.dmp

Filesize
4KB

Download
memory/404-1-0x0000000000800000-0x000000000091C000-memory.dmp

Filesize
1.1MB

Download
memory/404-2-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/404-3-0x0000000005310000-0x00000000053A2000-memory.dmp

Filesize
584KB

Download
memory/404-4-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/404-5-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/404-6-0x0000000005620000-0x00000000056BC000-memory.dmp

Filesize
624KB

Download
memory/404-7-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

Filesize
120KB

Download
memory/404-8-0x000000007531E000-0x000000007531F000-memory.dmp

Filesize
4KB

Download
memory/404-9-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/404-10-0x000000000A810000-0x000000000A8D4000-memory.dmp

Filesize
784KB

Download
memory/404-57-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/404-91-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-30-0x00000000069A0000-0x00000000069EC000-memory.dmp

Filesize
304KB

Download
memory/2880-49-0x0000000007EB0000-0x0000000007F46000-memory.dmp

Filesize
600KB

Download
memory/2880-14-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-15-0x0000000005960000-0x0000000005982000-memory.dmp

Filesize
136KB

Download
memory/2880-17-0x00000000061B0000-0x0000000006216000-memory.dmp

Filesize
408KB

Download
memory/2880-23-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-16-0x0000000006140000-0x00000000061A6000-memory.dmp

Filesize
408KB

Download
memory/2880-26-0x00000000062D0000-0x0000000006624000-memory.dmp

Filesize
3.3MB

Download
memory/2880-29-0x0000000006910000-0x000000000692E000-memory.dmp

Filesize
120KB

Download
memory/2880-13-0x0000000005B10000-0x0000000006138000-memory.dmp

Filesize
6.2MB

Download
memory/2880-32-0x000000006FB60000-0x000000006FBAC000-memory.dmp

Filesize
304KB

Download
memory/2880-31-0x0000000006EC0000-0x0000000006EF2000-memory.dmp

Filesize
200KB

Download
memory/2880-43-0x0000000006EA0000-0x0000000006EBE000-memory.dmp

Filesize
120KB

Download
memory/2880-38-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-45-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-44-0x0000000007B00000-0x0000000007BA3000-memory.dmp

Filesize
652KB

Download
memory/2880-46-0x0000000008280000-0x00000000088FA000-memory.dmp

Filesize
6.5MB

Download
memory/2880-47-0x0000000007C30000-0x0000000007C4A000-memory.dmp

Filesize
104KB

Download
memory/2880-48-0x0000000007CA0000-0x0000000007CAA000-memory.dmp

Filesize
40KB

Download
memory/2880-12-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-50-0x0000000007E30000-0x0000000007E41000-memory.dmp

Filesize
68KB

Download
memory/2880-51-0x0000000007E60000-0x0000000007E6E000-memory.dmp

Filesize
56KB

Download
memory/2880-54-0x0000000007E70000-0x0000000007E84000-memory.dmp

Filesize
80KB

Download
memory/2880-56-0x0000000007F70000-0x0000000007F8A000-memory.dmp

Filesize
104KB

Download
memory/2880-58-0x0000000007F50000-0x0000000007F58000-memory.dmp

Filesize
32KB

Download
memory/2880-70-0x0000000075310000-0x0000000075AC0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-11-0x0000000005340000-0x0000000005376000-memory.dmp

Filesize
216KB

Download
memory/3952-88-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-90-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-89-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-86-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-92-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-93-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-96-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3952-98-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3976-71-0x000000006FB60000-0x000000006FBAC000-memory.dmp

Filesize
304KB

Download