remcos | 34ad5c6c83fce7cec4232cbbff121934dfe93db3d3a95738f8d36a02da36d1f5

General

Target

POT98765400098765.exe
Size

685KB
MD5

f2a5a6b811805385156c3b820399e20e
SHA1

3724daa63f56b24ba08d83abf150d8b45728619b
SHA256

2fb0600e3f80a84d2e606d9dcebfae82473877af39e7c7b878d466318f7077af
SHA512

dbb724dc71e7a1f38838e86393bcbe59ccee16cabc131218911414223282060db71635196b636a60c5b4263d111d857b62fe597a0fc4b6f4ae2d9f8ed6a58a4a
SSDEEP

12288:StWFbRSnw9raCMSWo3zf6dbtYMwDYnpF0PsNpWHq53PTtrE8yfEozJ7yWYl/qcHg:So59rVjfICknEPGUS3RKEozJ7Al/m

Score

10^/10

remcos remotehost collection execution rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

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-TLPQMO
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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
behavioral1/memory/2648-62-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/2692-61-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2692-61-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2648-62-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2704-66-0x0000000000400000-0x0000000000424000-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\.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe	Powershell.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

POT98765400098765.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	POT98765400098765.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

POT98765400098765.exePOT98765400098765.exe

description	pid	process	target process
PID 2128 set thread context of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2688 set thread context of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 set thread context of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 set thread context of 2704	2688	POT98765400098765.exe	POT98765400098765.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
execution

PowerShell
T1059.001

Processes:

Powershell.exe

pid process

2380 Powershell.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Powershell.exePOT98765400098765.exe

pid process

2380 Powershell.exe
2692 POT98765400098765.exe
2692 POT98765400098765.exe
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

POT98765400098765.exe

pid process

2688 POT98765400098765.exe
2688 POT98765400098765.exe
2688 POT98765400098765.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Powershell.exePOT98765400098765.exe

description pid process

Token: SeDebugPrivilege 2380 Powershell.exe
Token: SeDebugPrivilege 2704 POT98765400098765.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

POT98765400098765.exe

pid process

2688 POT98765400098765.exe

pid	process
2380	Powershell.exe

pid	process
2380	Powershell.exe
2692	POT98765400098765.exe
2692	POT98765400098765.exe

pid	process
2688	POT98765400098765.exe
2688	POT98765400098765.exe
2688	POT98765400098765.exe

description	pid	process
Token: SeDebugPrivilege	2380	Powershell.exe
Token: SeDebugPrivilege	2704	POT98765400098765.exe

pid	process
2688	POT98765400098765.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

POT98765400098765.exePOT98765400098765.exe

description	pid	process	target process
PID 2128 wrote to memory of 2380	2128	POT98765400098765.exe	Powershell.exe
PID 2128 wrote to memory of 2380	2128	POT98765400098765.exe	Powershell.exe
PID 2128 wrote to memory of 2380	2128	POT98765400098765.exe	Powershell.exe
PID 2128 wrote to memory of 2380	2128	POT98765400098765.exe	Powershell.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2128 wrote to memory of 2688	2128	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2692	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2648	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2704	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2704	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2704	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2704	2688	POT98765400098765.exe	POT98765400098765.exe
PID 2688 wrote to memory of 2704	2688	POT98765400098765.exe	POT98765400098765.exe

C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe
"C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2128

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
2⤵
- Drops startup file
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2380

C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe
"C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2688

C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe
C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe /stext "C:\Users\Admin\AppData\Local\Temp\xhsftcnxsidolnxjtuwazkjuaylb"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:2692

C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe
C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe /stext "C:\Users\Admin\AppData\Local\Temp\hbxylvyzgqvtntunkejccxwljndcmso"
3⤵
- Accesses Microsoft Outlook accounts
PID:2648

C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe
C:\Users\Admin\AppData\Local\Temp\POT98765400098765.exe /stext "C:\Users\Admin\AppData\Local\Temp\sdci"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2704

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
a15b76617719e3c220e36bea6b32ab98

SHA1
4e669c8651ec56f4cfd0e4fb874aebe53c25c9f7

SHA256
94751985410eb1986f86fc50c91daa225374dc9b24d0cf8b6b66369f959b089e

SHA512
011979471f9155dc2d4f0fef920c522a3ff11cb6a77a860a845e00fbce40a3b6880925d1c859c59ddde1a12e1c6c49cb1b2ce55c2d4699df0fb62e52dfc60a86

Download Submit
C:\Users\Admin\AppData\Local\Temp\xhsftcnxsidolnxjtuwazkjuaylb
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2128-0-0x000000007427E000-0x000000007427F000-memory.dmp

Filesize
4KB

Download
memory/2128-1-0x0000000000A60000-0x0000000000B12000-memory.dmp

Filesize
712KB

Download
memory/2128-2-0x00000000042C0000-0x000000000436E000-memory.dmp

Filesize
696KB

Download
memory/2128-3-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-11-0x0000000000480000-0x0000000000488000-memory.dmp

Filesize
32KB

Download
memory/2128-45-0x0000000074270000-0x000000007495E000-memory.dmp

Filesize
6.9MB

Download
memory/2380-8-0x000000006F320000-0x000000006F8CB000-memory.dmp

Filesize
5.7MB

Download
memory/2380-9-0x000000006F320000-0x000000006F8CB000-memory.dmp

Filesize
5.7MB

Download
memory/2380-10-0x000000006F320000-0x000000006F8CB000-memory.dmp

Filesize
5.7MB

Download
memory/2380-46-0x000000006F320000-0x000000006F8CB000-memory.dmp

Filesize
5.7MB

Download
memory/2380-7-0x000000006F320000-0x000000006F8CB000-memory.dmp

Filesize
5.7MB

Download
memory/2380-6-0x000000006F321000-0x000000006F322000-memory.dmp

Filesize
4KB

Download
memory/2648-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2648-60-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2648-62-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2688-47-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-38-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-42-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-33-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-28-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-26-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-24-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-22-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-20-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-18-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-14-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-43-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-48-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-49-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-50-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-52-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-53-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-54-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-108-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-39-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-100-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-101-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-16-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-93-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-92-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-85-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-84-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-15-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-73-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2688-76-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2688-77-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2688-78-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2688-12-0x0000000000080000-0x0000000000102000-memory.dmp

Filesize
520KB

Download
memory/2692-56-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2692-59-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2692-61-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2704-66-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2704-63-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-65-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2704-64-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads