remcos | 79b471a0a41d5c4b158af84c2f9619a08fb645f8a400c58fedc8521a4f238406

General

Target

DHL AWB# 15700638.exe
Size

972KB
MD5

185c9b9945409c3d3d90d76a6b32ebb1
SHA1

7797db82d41d3a3504f578bad1280c3be5f77826
SHA256

79b471a0a41d5c4b158af84c2f9619a08fb645f8a400c58fedc8521a4f238406
SHA512

06bfd7c742ec0a69dcbd18b2caf2a62c948aee7760bc224d6bd81d3356dfe0dc6e847912a5d0d0c4a0e6b7c51caaaf4af8d2df4eaabda0fe2417361c44e20977
SSDEEP

24576:AwerXiN/Ylh7bP67DPxscfEBiLHoZmI8eqDW:Aw8oA+Px6iL8qW

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

176.65.144.121:5689

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
5867-V7HPI7
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
Remcos family
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
2368	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2540 set thread context of 2628	2540	DHL AWB# 15700638.exe	34

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	DHL AWB# 15700638.exe
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# 15700638.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
2728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2368	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 2368	2540	DHL AWB# 15700638.exe	30
PID 2540 wrote to memory of 2368	2540	DHL AWB# 15700638.exe	30
PID 2540 wrote to memory of 2368	2540	DHL AWB# 15700638.exe	30
PID 2540 wrote to memory of 2368	2540	DHL AWB# 15700638.exe	30
PID 2540 wrote to memory of 2728	2540	DHL AWB# 15700638.exe	32
PID 2540 wrote to memory of 2728	2540	DHL AWB# 15700638.exe	32
PID 2540 wrote to memory of 2728	2540	DHL AWB# 15700638.exe	32
PID 2540 wrote to memory of 2728	2540	DHL AWB# 15700638.exe	32
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34
PID 2540 wrote to memory of 2628	2540	DHL AWB# 15700638.exe	34

C:\Users\Admin\AppData\Local\Temp\DHL AWB# 15700638.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB# 15700638.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2540
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JWXNZxZzQRvzLR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2368
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JWXNZxZzQRvzLR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC67A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2728
- C:\Users\Admin\AppData\Local\Temp\DHL AWB# 15700638.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL AWB# 15700638.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2628

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC67A.tmp

Filesize
1KB

MD5
76f6819e3d337bdc1e27fc256f2c0afd

SHA1
8a55562a0357e4cdfb26ee5c3a7af80f89952e85

SHA256
6c526a2ddf9ee471f15661189fc225375ca88a729a8f6238e4a723a65052eb30

SHA512
a2548483874bb79339ee8130c24c607aebfcd3c1223c9b5976ed5dfe6bb57a0c805deb9d55010ac1a674181f0fff475b17ad965917d34a96a6ca0adc5dd8553a

Download Submit
memory/2540-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/2540-1-0x0000000001270000-0x000000000136A000-memory.dmp

Filesize
1000KB

Download
memory/2540-2-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Filesize
6.9MB

Download
memory/2540-3-0x00000000008A0000-0x00000000008BE000-memory.dmp

Filesize
120KB

Download
memory/2540-4-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/2540-5-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Filesize
6.9MB

Download
memory/2540-6-0x000000000A4B0000-0x000000000A570000-memory.dmp

Filesize
768KB

Download
memory/2540-35-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2628-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads