remcos | 9266e7c60ee4abd1b415a2ca3273d0a9d83547807f610565ca964065fa0aac14

General

Target

DHL AWB DOCS- 9284730932.exe
Size

1.0MB
MD5

d781792d361fd943400e62fd653d3e4a
SHA1

37199a0c8450c9a7e8976531fe9183bf5dab4f75
SHA256

9266e7c60ee4abd1b415a2ca3273d0a9d83547807f610565ca964065fa0aac14
SHA512

ea132456b576df8da4aef874e8bb7d77ecabcdf44679437ca7567f5832c096dc1bf31575d4ae37f3236d3313b1b9513de623cbadc85bc531c840dd3729e0acd3
SSDEEP

24576:4GYurNDn2jBroy03+qrgX0Gb1Qvhie97Mq6WULwPXn:4vuEpXCgJQ4sWwPn

Score

10^/10

remcos 8846455 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

8846455

C2

windowsoctarem.duckdns.org:56892

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
4765-HH3V0S
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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
2736	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2920 set thread context of 2516	2920	DHL AWB DOCS- 9284730932.exe	32

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	DHL AWB DOCS- 9284730932.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL AWB DOCS- 9284730932.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
3000	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2736	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2736	2920	DHL AWB DOCS- 9284730932.exe	28
PID 2920 wrote to memory of 2736	2920	DHL AWB DOCS- 9284730932.exe	28
PID 2920 wrote to memory of 2736	2920	DHL AWB DOCS- 9284730932.exe	28
PID 2920 wrote to memory of 2736	2920	DHL AWB DOCS- 9284730932.exe	28
PID 2920 wrote to memory of 3000	2920	DHL AWB DOCS- 9284730932.exe	30
PID 2920 wrote to memory of 3000	2920	DHL AWB DOCS- 9284730932.exe	30
PID 2920 wrote to memory of 3000	2920	DHL AWB DOCS- 9284730932.exe	30
PID 2920 wrote to memory of 3000	2920	DHL AWB DOCS- 9284730932.exe	30
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32
PID 2920 wrote to memory of 2516	2920	DHL AWB DOCS- 9284730932.exe	32

C:\Users\Admin\AppData\Local\Temp\DHL AWB DOCS- 9284730932.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB DOCS- 9284730932.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HXyozBvXPdXB.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HXyozBvXPdXB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8843.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3000
- C:\Users\Admin\AppData\Local\Temp\DHL AWB DOCS- 9284730932.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL AWB DOCS- 9284730932.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8843.tmp

Filesize
1KB

MD5
7eadaab757ab50f14b3202d2e80180a4

SHA1
952c61f80bf873a44d1ad2b303fb89506dc48658

SHA256
a67ebd562edbb08df0da9203c5d75acc626cc2e7ff80727bf8057ffb391d4464

SHA512
33f1f8d3d0ce6ad7c492e0c3a51a5e76ee3f0bb8064ef4ce10c6ea17c70ad5fc8ff337901ecd278ca887a1182f3d62bfb22cd2077ab9dc9211f9332d997d99ef

Download Submit
memory/2516-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2516-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2516-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2920-35-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-1-0x0000000000FE0000-0x00000000010EA000-memory.dmp

Filesize
1.0MB

Download
memory/2920-4-0x00000000004F0000-0x0000000000502000-memory.dmp

Filesize
72KB

Download
memory/2920-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2920-7-0x00000000059A0000-0x0000000005A5E000-memory.dmp

Filesize
760KB

Download
memory/2920-6-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-5-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2920-3-0x0000000004F00000-0x0000000004FE4000-memory.dmp

Filesize
912KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads