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 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/4068-152-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/224-153-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/224-154-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1720-151-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4068-152-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/224-153-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/224-154-0x0000000000400000-0x0000000000478000-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-1-5-21-2629973501-4017243118-3254762364-1000\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 3232 set thread context of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 1856 set thread context of 224	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 set thread context of 4068	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 set thread context of 1720	1856	RegSvcs.exe	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Powershell.exeRegSvcs.exeRegSvcs.exe

pid process

1220 Powershell.exe
1220 Powershell.exe
224 RegSvcs.exe
224 RegSvcs.exe
1720 RegSvcs.exe
1720 RegSvcs.exe
224 RegSvcs.exe
224 RegSvcs.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

RegSvcs.exe

pid process

1856 RegSvcs.exe
1856 RegSvcs.exe
1856 RegSvcs.exe
1856 RegSvcs.exe

pid	process
1220	Powershell.exe
1220	Powershell.exe
224	RegSvcs.exe
224	RegSvcs.exe
1720	RegSvcs.exe
1720	RegSvcs.exe
224	RegSvcs.exe
224	RegSvcs.exe

pid	process
1856	RegSvcs.exe
1856	RegSvcs.exe
1856	RegSvcs.exe
1856	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PaymentNotification.pdf.exePowershell.exeRegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	3232	PaymentNotification.pdf.exe
Token: SeDebugPrivilege	1220	Powershell.exe
Token: SeDebugPrivilege	1720	RegSvcs.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

PaymentNotification.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 3232 wrote to memory of 1220	3232	PaymentNotification.pdf.exe	Powershell.exe
PID 3232 wrote to memory of 1220	3232	PaymentNotification.pdf.exe	Powershell.exe
PID 3232 wrote to memory of 1220	3232	PaymentNotification.pdf.exe	Powershell.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 3232 wrote to memory of 1856	3232	PaymentNotification.pdf.exe	RegSvcs.exe
PID 1856 wrote to memory of 224	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 224	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 224	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 224	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4068	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4068	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4068	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4068	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4156	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4156	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 4156	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 1720	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 1720	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 1720	1856	RegSvcs.exe	RegSvcs.exe
PID 1856 wrote to memory of 1720	1856	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:3232

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:1220

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:1856

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\bkcidtryvdbzxxdn"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:224

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\deibwmbrjlteadzrvhk"
3⤵
- Accesses Microsoft Outlook accounts
PID:4068

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\ngvtwwmtftlrcknvmsxwxn"
3⤵
PID:4156

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\ngvtwwmtftlrcknvmsxwxn"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1720

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\bkcidtryvdbzxxdn
Filesize
4KB

MD5
30177e1276595fd69ea96b692f49d776

SHA1
75769c29031ca1ad8e175dd700c74b5e35c5b0c7

SHA256
76d4066990e2ee2776f733a25ce23e9af545fd6f1a3b5760d603bdc05d9402d5

SHA512
ccdf20174d299de8ec21445faaf4ebe95c04bd7634c9fe138ba54262b754620c2dfd53a5c94b7d53518181d2eab7b5c97d7933d3a66d05220b06aee120893d4b

Download Submit
memory/224-153-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/224-154-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/224-146-0x0000000000000000-mapping.dmp

Download
memory/1220-139-0x0000000005B30000-0x0000000006158000-memory.dmp

Filesize
6.2MB

Download
memory/1220-158-0x0000000006D70000-0x0000000006D92000-memory.dmp

Filesize
136KB

Download
memory/1220-157-0x0000000006D20000-0x0000000006D3A000-memory.dmp

Filesize
104KB

Download
memory/1220-156-0x0000000007810000-0x00000000078A6000-memory.dmp

Filesize
600KB

Download
memory/1220-142-0x0000000005880000-0x00000000058A2000-memory.dmp

Filesize
136KB

Download
memory/1220-143-0x0000000006160000-0x00000000061C6000-memory.dmp

Filesize
408KB

Download
memory/1220-144-0x0000000006240000-0x00000000062A6000-memory.dmp

Filesize
408KB

Download
memory/1220-135-0x0000000000000000-mapping.dmp

Download
memory/1220-150-0x0000000006850000-0x000000000686E000-memory.dmp

Filesize
120KB

Download
memory/1220-136-0x0000000002F50000-0x0000000002F86000-memory.dmp

Filesize
216KB

Download
memory/1720-149-0x0000000000000000-mapping.dmp

Download
memory/1720-151-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1856-159-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1856-141-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1856-140-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1856-137-0x0000000000000000-mapping.dmp

Download
memory/1856-138-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1856-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3232-134-0x000000000B800000-0x000000000BDA4000-memory.dmp

Filesize
5.6MB

Download
memory/3232-132-0x0000000000EA0000-0x0000000000F30000-memory.dmp

Filesize
576KB

Download
memory/3232-133-0x000000000B0B0000-0x000000000B14C000-memory.dmp

Filesize
624KB

Download
memory/4068-152-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4068-147-0x0000000000000000-mapping.dmp

Download
memory/4156-148-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads