remcos | 79f3f61ce35754dd4a5f3f94297af6c529671f27215af4eac1b0a71807b9e615

General

Target

PO 738900.exe
Size

1.1MB
MD5

a4df734fada4dec0bebcbbbed4e083ab
SHA1

283763090c6af71ef60d76b4515c9edebd416bcf
SHA256

e0d74fa44286f3a4c4c4c2fc151a339f487c2af644fb9691016dcf057b3bd343
SHA512

914b580fefa91d948a256c2f2ab39b18f36f631e7ff9c387888334521221466814af45bde59b59420c8eb6f22d0808afc6e27f3b562d5c495ab8b8a7666af637
SSDEEP

24576:bOp3fxqwcD01FUKer5zdzDarNhrBAJhDdiGXck5WZ7XZeLBmWlo:bOZOqbeDsBixy7XZsblo

Score

10^/10

remcos 76364 execution rat

Malware Config

Extracted

Family

remcos

Botnet

76364

C2

103.150.8.12:5689

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
Rmc-FF0K7G
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

detects Windows exceutables potentially bypassing UAC using eventvwr.exe 21 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2060-31-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-35-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-34-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-32-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-29-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-26-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-24-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-23-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-20-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-36-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-37-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-38-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-39-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-40-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-41-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-42-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-43-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-44-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-45-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-46-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
behavioral1/memory/2060-47-0x0000000000400000-0x000000000047F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer

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

Processes:

powershell.exe

pid process

2716 powershell.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 738900.exe

description pid process target process

PID 2368 set thread context of 2060 2368 PO 738900.exe PO 738900.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2752 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2716 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2716 powershell.exe

pid	process
2716	powershell.exe

description	pid	process	target process
PID 2368 set thread context of 2060	2368	PO 738900.exe	PO 738900.exe

pid	process
2752	schtasks.exe

pid	process
2716	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2716	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

PO 738900.exe

description	pid	process	target process
PID 2368 wrote to memory of 2716	2368	PO 738900.exe	powershell.exe
PID 2368 wrote to memory of 2716	2368	PO 738900.exe	powershell.exe
PID 2368 wrote to memory of 2716	2368	PO 738900.exe	powershell.exe
PID 2368 wrote to memory of 2716	2368	PO 738900.exe	powershell.exe
PID 2368 wrote to memory of 2752	2368	PO 738900.exe	schtasks.exe
PID 2368 wrote to memory of 2752	2368	PO 738900.exe	schtasks.exe
PID 2368 wrote to memory of 2752	2368	PO 738900.exe	schtasks.exe
PID 2368 wrote to memory of 2752	2368	PO 738900.exe	schtasks.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe
PID 2368 wrote to memory of 2060	2368	PO 738900.exe	PO 738900.exe

C:\Users\Admin\AppData\Local\Temp\PO 738900.exe
"C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tkoOXvlkbwis.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tkoOXvlkbwis" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5DBA.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\PO 738900.exe
  "C:\Users\Admin\AppData\Local\Temp\PO 738900.exe"
  2⤵
  PID:2060

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5DBA.tmp

Filesize
1KB

MD5
72e6ebc194d7a0466680106169857bcf

SHA1
4e4fa2208fd4051b2bc67e9291fef2392b5a8ca9

SHA256
83e3c33d9f54056050fa35d1aa9d126b3daff3037b72c252edc4f0ed64352cab

SHA512
8af39725d8a974ccc16c5116662117b161a5ad461abec2996cf6c49be4894ec1b53432833545aab4dd87df73dc05d34c66d3534d8ccaaaffcbf9fc87aec9f400

Download Submit
memory/2060-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2060-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2060-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2368-2-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2368-4-0x0000000001FD0000-0x0000000001FEE000-memory.dmp

Filesize
120KB

Download
memory/2368-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/2368-33-0x0000000074A00000-0x00000000750EE000-memory.dmp

Filesize
6.9MB

Download
memory/2368-1-0x0000000000A30000-0x0000000000B48000-memory.dmp

Filesize
1.1MB

Download
memory/2368-6-0x00000000053B0000-0x000000000546E000-memory.dmp

Filesize
760KB

Download
memory/2368-5-0x0000000002090000-0x00000000020A0000-memory.dmp

Filesize
64KB

Download
memory/2368-3-0x0000000004EF0000-0x0000000004FD0000-memory.dmp

Filesize
896KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads