remcos | 079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-11-2024 19:24

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General

Target

079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
Size

1.1MB
MD5

204ecf68817cdad4381e1d93f789e633
SHA1

a69df4647e9fb745bb521476ebaccab84a864c26
SHA256

079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3
SHA512

a9a1eb678a7f3cb6cf63a8968b2a662ec6f25957deb4671f960e52af342ab064c8c7cd5aac7f527a5abe8164551ba3fc74a85f7b7cf5d17fa45ab0f4c89cd5a8
SSDEEP

24576:Zq0qTzmNIUbnl/RyC27CPJCo4eUxTX6kRtMj3HayowUqmz2:Zq1m54b2xd4HX/tMzayKqmz2

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

45.88.186.149:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-T6LQRL
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
Remcos family
remcos

Detected Nirsoft tools 6 IoCs

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

resource	yara_rule
behavioral1/memory/1972-35-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1972-41-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1492-47-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/1872-46-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1972-52-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1492-61-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1492-47-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/1492-61-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1972-35-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1972-41-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1972-52-0x0000000000400000-0x0000000000478000-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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2196 set thread context of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2836 set thread context of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 set thread context of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 set thread context of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34

System Location Discovery: System Language Discovery 1 TTPs 5 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	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
1972	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1872	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2196 wrote to memory of 2836	2196	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	30
PID 2836 wrote to memory of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 wrote to memory of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 wrote to memory of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 wrote to memory of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 wrote to memory of 1972	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	31
PID 2836 wrote to memory of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 wrote to memory of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 wrote to memory of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 wrote to memory of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 wrote to memory of 1492	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	32
PID 2836 wrote to memory of 1088	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	33
PID 2836 wrote to memory of 1088	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	33
PID 2836 wrote to memory of 1088	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	33
PID 2836 wrote to memory of 1088	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	33
PID 2836 wrote to memory of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34
PID 2836 wrote to memory of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34
PID 2836 wrote to memory of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34
PID 2836 wrote to memory of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34
PID 2836 wrote to memory of 1872	2836	079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe	34

C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
"C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
  "C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
    C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe /stext "C:\Users\Admin\AppData\Local\Temp\dstaxbeolcgufrocrxe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1972
- - C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
    C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe /stext "C:\Users\Admin\AppData\Local\Temp\omytytphgkyhhxcgihryvo"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:1492
- - C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
    C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe /stext "C:\Users\Admin\AppData\Local\Temp\yoddzmajutrlsdysrseagbpqx"
    3⤵
    PID:1088
- - C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe
    C:\Users\Admin\AppData\Local\Temp\079051d3a228e1c41f1f7402b7a93af68965a8de835168bc57360ab6f772f8c3.exe /stext "C:\Users\Admin\AppData\Local\Temp\yoddzmajutrlsdysrseagbpqx"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\dstaxbeolcgufrocrxe

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/1492-61-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1492-42-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1492-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1492-40-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1492-39-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1492-47-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1872-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1872-44-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1872-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1972-34-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1972-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1972-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1972-35-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1972-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2196-4-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2196-3-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2196-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2196-6-0x000000000A360000-0x000000000A420000-memory.dmp

Filesize
768KB

Download
memory/2196-1-0x0000000000E60000-0x0000000000F80000-memory.dmp

Filesize
1.1MB

Download
memory/2196-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2196-5-0x0000000000A90000-0x0000000000AAC000-memory.dmp

Filesize
112KB

Download
memory/2196-23-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2836-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2836-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-56-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2836-59-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2836-60-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2836-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2836-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download