remcos | de3d9df15379d0e7a810cff323d05d0c4e5f88856d240f3310097e494c54f9d0

Analysis

max time kernel
269s
max time network
260s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 20:02

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General

Target

Inquiry no. 1051_pdf.exe
Size

925KB
MD5

3cde006756a1b69ae3beb2b628b1d283
SHA1

063c8cf9cf108b562d883d5b420067fb24b37ecf
SHA256

de3d9df15379d0e7a810cff323d05d0c4e5f88856d240f3310097e494c54f9d0
SHA512

6c70633b18a733fade1efceb70ba2547566e1045781da50280f2b72a8e7b6fb6fd3aae5c870b9a7917975a0576bf35063039c89547c577e730c991c07dd1454e
SSDEEP

12288:YQ7kvDoQbr+npWPrUrmPsB9sColkOhvNCqCwe4cpq+ffGET6F8yTegNZV2TtA52b:YQo/CAoCPsPKhCwe4FOGET6FJSKb2Nz

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

eadzagba1.duckdns.org:4877

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-X3UMUO
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2700	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2644 set thread context of 2032	2644	Inquiry no. 1051_pdf.exe	36

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Inquiry no. 1051_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Inquiry no. 1051_pdf.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
2228	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2644	Inquiry no. 1051_pdf.exe
2644	Inquiry no. 1051_pdf.exe
2644	Inquiry no. 1051_pdf.exe
2644	Inquiry no. 1051_pdf.exe
2700	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	Inquiry no. 1051_pdf.exe
Token: SeDebugPrivilege	2700	powershell.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2700	2644	Inquiry no. 1051_pdf.exe	30
PID 2644 wrote to memory of 2700	2644	Inquiry no. 1051_pdf.exe	30
PID 2644 wrote to memory of 2700	2644	Inquiry no. 1051_pdf.exe	30
PID 2644 wrote to memory of 2700	2644	Inquiry no. 1051_pdf.exe	30
PID 2644 wrote to memory of 2228	2644	Inquiry no. 1051_pdf.exe	32
PID 2644 wrote to memory of 2228	2644	Inquiry no. 1051_pdf.exe	32
PID 2644 wrote to memory of 2228	2644	Inquiry no. 1051_pdf.exe	32
PID 2644 wrote to memory of 2228	2644	Inquiry no. 1051_pdf.exe	32
PID 2644 wrote to memory of 2724	2644	Inquiry no. 1051_pdf.exe	34
PID 2644 wrote to memory of 2724	2644	Inquiry no. 1051_pdf.exe	34
PID 2644 wrote to memory of 2724	2644	Inquiry no. 1051_pdf.exe	34
PID 2644 wrote to memory of 2724	2644	Inquiry no. 1051_pdf.exe	34
PID 2644 wrote to memory of 2664	2644	Inquiry no. 1051_pdf.exe	35
PID 2644 wrote to memory of 2664	2644	Inquiry no. 1051_pdf.exe	35
PID 2644 wrote to memory of 2664	2644	Inquiry no. 1051_pdf.exe	35
PID 2644 wrote to memory of 2664	2644	Inquiry no. 1051_pdf.exe	35
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36
PID 2644 wrote to memory of 2032	2644	Inquiry no. 1051_pdf.exe	36

C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tEYdryyOxcUotv.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2700
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tEYdryyOxcUotv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3F51.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2228
- C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe"
  2⤵
  PID:2724
- C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe"
  2⤵
  PID:2664
- C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Inquiry no. 1051_pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2032

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

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:\Users\Admin\AppData\Local\Temp\tmp3F51.tmp

Filesize
1KB

MD5
5031c3120e8aba6d278376ada283750c

SHA1
cafee4e06d31ac69105854d1e26f2a2ec731f516

SHA256
df5e7c400cc24fd11dd4f7ee1b205ff7dbb9720699931f5d4cb14e79805e059d

SHA512
935f73c3d30f11212d63ab82a85b1619fcc230b26a466117128cb1545df49a53f3496a5c86fc5ff1f1c256505bcbcbb09f83df5567627cfec081dcc40df27d40

Download Submit
memory/2032-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2032-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2644-0-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2644-2-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-34-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-1-0x0000000000090000-0x000000000017C000-memory.dmp

Filesize
944KB

Download
memory/2644-6-0x0000000005130000-0x00000000051F0000-memory.dmp

Filesize
768KB

Download
memory/2644-5-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2644-4-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2644-3-0x0000000000480000-0x0000000000490000-memory.dmp

Filesize
64KB

Download