remcos | 997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2

General

Target

997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
Size

483KB
MD5

b0b179cb58814287051a3933455c382e
SHA1

23bb06299fe32cc15786f9b79c22e5d7af50802a
SHA256

997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2
SHA512

6c0c6fbd544517b05e17cdd15e64698df5683b51a9fc79dfe51e18c62202d2d45626ba41e6c9b7b7ae507ce474c948f501971815afa6accc81b4268afafb11c9
SSDEEP

6144:RTz+c6KHYBhDc1RGJdv//NkUn+N5Bkf/0TELRvIZPjbsAOZZmAX4crgWT4:RTlrYw1RUh3NFn+N5WfIQIjbs/ZmgT4

Score

10^/10

remcos remotehost collection credential_access discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

maxert.wemnbbsweoipmngbyutrdcunbgrtjeroendns.pro:6845

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
notpad0
keylog_path
%Temp%
mouse_option
false
mutex
Rmc-EPF38I
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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 8 IoCs

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

resource	yara_rule
behavioral2/memory/2276-14-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4828-19-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4828-21-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2276-24-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2632-13-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2632-10-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2276-11-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2632-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4828-19-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4828-21-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2632-13-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2632-10-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2632-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1548 set thread context of 2632	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	82
PID 1548 set thread context of 4828	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	83
PID 1548 set thread context of 2276	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.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	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2632	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
2632	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
2276	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
2276	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
2632	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
2632	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 2632	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	82
PID 1548 wrote to memory of 2632	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	82
PID 1548 wrote to memory of 2632	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	82
PID 1548 wrote to memory of 4828	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	83
PID 1548 wrote to memory of 4828	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	83
PID 1548 wrote to memory of 4828	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	83
PID 1548 wrote to memory of 2276	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	84
PID 1548 wrote to memory of 2276	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	84
PID 1548 wrote to memory of 2276	1548	997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe	84

C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
"C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
  C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe /stext "C:\Users\Admin\AppData\Local\Temp\estdgvgr"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
  C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe /stext "C:\Users\Admin\AppData\Local\Temp\omzohnrlcdv"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4828
- C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe
  C:\Users\Admin\AppData\Local\Temp\997371c951144335618b3c5f4608afebf7688a58b6a95cdc71f237f2a7cc56a2.exe /stext "C:\Users\Admin\AppData\Local\Temp\zoegiycmplnkeaj"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2276

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:\Users\Admin\AppData\Local\Temp\estdgvgr

Filesize
4KB

MD5
c0ab2847671ed5375328c5127a02cc72

SHA1
dc2bcb51562fb17e5c8787833bc0181d88a5b75e

SHA256
e961f466a0638bc99182d0056245e2d8bf1ccc13a189b802aada981f379e2384

SHA512
0b8b634d21ac71e02cef86687bf84b6fcecfd24dafab8130f42ce8b4b3f308a2e1b1fa7bf8d37f2eda76efae2b30b8d39f41d808d771562d8545ed144241924f

Download Submit
C:\Users\Admin\AppData\Local\Temp\notpad0\logs.dat

Filesize
144B

MD5
73770a472a50c83b815e8f4ab162f0ce

SHA1
6addd7d7cd4ed3794a720e6347add6d3dda209ea

SHA256
733744b1ed611fed48bf8af93aea60fe2cf02ce94b39599240bc1713b2287b8b

SHA512
1727dc6f18b32ed59a7ce6cceef5942673712164297adaf5bc50bf9f7c690b9e72e8939d4eaeea1abfbd00ce2db7e8ea328e770dcf15af0b4a66b494de118021

Download Submit
memory/1548-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1548-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1548-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1548-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1548-34-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1548-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1548-29-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2276-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2276-24-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2276-14-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2276-7-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2276-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2632-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2632-6-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2632-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2632-10-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2632-13-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4828-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4828-21-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4828-19-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4828-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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