remcos | 7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d

General

Target

7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Size

483KB
MD5

701449e6a744d087200a07d612419806
SHA1

cbed3fab0f06a320eec78389b07b03c153a37a98
SHA256

7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d
SHA512

885523069499a470c5c374ba12551e6e422910e4f7a7e5bb77bf9ad4ed6e939fa79b079ea83d22229bdc69e3970162de54cbaac2a4ad9a02dc8a61612c15f5b6
SSDEEP

6144:wTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZBAXccr/aT4:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBNT4

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

hiddenrmcnew.duckdns.org:7839

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-2QT0LM
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

Detected Nirsoft tools 8 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral2/memory/3308-8-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2564-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3308-19-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2564-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2564-14-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4536-10-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4536-7-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4536-24-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3308-8-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3308-19-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4536-10-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4536-7-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4536-24-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2484 set thread context of 4536	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 2484 set thread context of 3308	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 2484 set thread context of 2564	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84

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	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4536	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
4536	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2564	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2564	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
4536	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
4536	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 4536	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 2484 wrote to memory of 4536	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 2484 wrote to memory of 4536	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	82
PID 2484 wrote to memory of 3308	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 2484 wrote to memory of 3308	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 2484 wrote to memory of 3308	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	83
PID 2484 wrote to memory of 2564	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84
PID 2484 wrote to memory of 2564	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84
PID 2484 wrote to memory of 2564	2484	7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe	84

C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
"C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\rmhonyvcirdhinghpfks"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4536
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\uguhnqfwwzwustulyqxuqsm"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:3308
- C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe
  C:\Users\Admin\AppData\Local\Temp\7dece62c4b406bf4ade0a6c069c09b04360eb2eed54f8f16bd2655674237021d.exe /stext "C:\Users\Admin\AppData\Local\Temp\eizzojqykhozuhqppaknsezibfu"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
36ab0810fbb624bcde7328df20613687

SHA1
9de5af83708e9e286e2fa6494120deb52cf043ff

SHA256
5fb803f7d165f224fdcdab32448f76d6e5b82651bacf7894ca3a3977d1c51231

SHA512
156bc6ff63f59f52a0d04e7f06770df1ac772c97cfcb1136ff376cc687b1450a3af3bf1b4e9b974e2f5f3f4076760b518a2066e7bd56b59677780b39d90ad593

Download Submit
C:\Users\Admin\AppData\Local\Temp\rmhonyvcirdhinghpfks

Filesize
4KB

MD5
16f4f7c4051f4bbdaa93a1ca80690065

SHA1
750cacbdd2d089a88119374560d6ac004954e90e

SHA256
6c4559e4413cccaeab73cad48ffd804506c95566e4d6a3f5ae64017a33ea6ec2

SHA512
cb0f68d393ad03a5c802a2978ff7b12e20911bac5e27200c2df16d5d3f63dfc2387c0cd1a9075d8e4ba9ae804a6b61225575e2f42b3ef024e863d5b172417964

Download Submit
memory/2484-31-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2484-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2484-27-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2484-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2484-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2484-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2564-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2564-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2564-14-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2564-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2564-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3308-19-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3308-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3308-9-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3308-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3308-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4536-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4536-4-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4536-7-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4536-10-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4536-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

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