remcos | 0b369a736f1f26563fde964ce5a3e43e6ef527a274ba336b701a7c8c34957541

General

Target

PaymentNotification.pdf.exe
Size

555KB
MD5

1e3c498b5c85c99e3cd7a4fc32b424e5
SHA1

ce4f5a80bd7af69dc9a5988eb4ea3d4b0705d9d9
SHA256

0b369a736f1f26563fde964ce5a3e43e6ef527a274ba336b701a7c8c34957541
SHA512

b733813495e051eca02268f641b2ae073b5f8a79ca339d9238b2b6be7dc6f77d3d7a2395a8d887c060f5850f562e64aad269502e5253436fe709c6b2b5c6939b
SSDEEP

12288:fHHX5l8Pdwktnk2i//MDQdWfdTdV6IbDzADCiyQFadbMMdocO:fXj6dwkSP/QQdWlhAcO/FUX

Score

10^/10

remcos remotehost collection rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

top.thekillforabuse1.xyz:55988

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-3LSD40
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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/544-86-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/544-91-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/1988-87-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1988-88-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/344-85-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/544-86-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/1988-87-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1988-88-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/544-91-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft

Drops startup file 2 IoCs

Processes:

Powershell.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sys bNjtem.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sys bNjtem.exe	Powershell.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	RegSvcs.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PaymentNotification.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 956 set thread context of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 896 set thread context of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 set thread context of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 set thread context of 344	896	RegSvcs.exe	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Powershell.exeRegSvcs.exe

pid process

1736 Powershell.exe
1988 RegSvcs.exe
1988 RegSvcs.exe
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

RegSvcs.exe

pid process

896 RegSvcs.exe
896 RegSvcs.exe
896 RegSvcs.exe

pid	process
1736	Powershell.exe
1988	RegSvcs.exe
1988	RegSvcs.exe

pid	process
896	RegSvcs.exe
896	RegSvcs.exe
896	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PaymentNotification.pdf.exePowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	956	PaymentNotification.pdf.exe
Token: SeDebugPrivilege	1736	Powershell.exe
Token: SeDebugPrivilege	344	RegSvcs.exe

Suspicious use of WriteProcessMemory 44 IoCs

Processes:

PaymentNotification.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 956 wrote to memory of 1736	956	PaymentNotification.pdf.exe	Powershell.exe
PID 956 wrote to memory of 1736	956	PaymentNotification.pdf.exe	Powershell.exe
PID 956 wrote to memory of 1736	956	PaymentNotification.pdf.exe	Powershell.exe
PID 956 wrote to memory of 1736	956	PaymentNotification.pdf.exe	Powershell.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 956 wrote to memory of 896	956	PaymentNotification.pdf.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 1988	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 544	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe
PID 896 wrote to memory of 344	896	RegSvcs.exe	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PaymentNotification.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PaymentNotification.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:956

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\PaymentNotification.pdf.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sys bNjtem.exe'
2⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1736

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:896

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\faewixaqcjtqbuewrgz"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1988

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\icjpiplsyrldlaaabqmdvu"
3⤵
- Accesses Microsoft Outlook accounts
PID:544

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe /stext "C:\Users\Admin\AppData\Local\Temp\swozjavlmzdiogoekbzwgyzwu"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\faewixaqcjtqbuewrgz
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/344-85-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/344-81-0x0000000000422206-mapping.dmp

Download
memory/544-80-0x0000000000455238-mapping.dmp

Download
memory/544-91-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/544-86-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/896-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-73-0x00000000004327A4-mapping.dmp

Download
memory/896-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/896-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/956-54-0x00000000001A0000-0x0000000000230000-memory.dmp

Filesize
576KB

Download
memory/956-56-0x0000000075E11000-0x0000000075E13000-memory.dmp

Filesize
8KB

Download
memory/956-59-0x0000000000590000-0x00000000005AC000-memory.dmp

Filesize
112KB

Download
memory/956-55-0x0000000006DB0000-0x0000000006E3E000-memory.dmp

Filesize
568KB

Download
memory/1736-78-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/1736-89-0x0000000074940000-0x0000000074EEB000-memory.dmp

Filesize
5.7MB

Download
memory/1736-57-0x0000000000000000-mapping.dmp

Download
memory/1988-88-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1988-87-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1988-79-0x0000000000476274-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads