remcos | cc41eaf640f61d3397a818951761ff8aa4f17061d627593edc0be386ef195ff2

Analysis

max time kernel
1199s
max time network
1192s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
18-05-2024 21:28

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General

Target

Order confirmation.exe
Size

417KB
MD5

ce9a01b0cb4fefdcf3e515c04eed116a
SHA1

b8ad340b679ba3e82d7ffc638338b9b3a2aea6c9
SHA256

bd7881bba1d222d41dffeed7e666f6c916886ad5841842064922deef45b67e87
SHA512

a31da8278c3fd4661ce4d7a5d971a21a8cb4f5983998bd6aa2a8e51abee6f491edfd97a4ed05dd340539714a28267f1f9cb35910b3ce3f30927ff03451f55f9b
SSDEEP

12288:FdY4AJBniIuil827YSeuie2OeSNu0ldZ4obxZm5g4:Fe4AJBniIVsSeuie7HPZZZ4

Score

10^/10

remcos remotehost collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

185.202.173.179:2404

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-IQO6U9
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 2 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral1/memory/4692-33-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/4692-35-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/3180-36-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/3180-32-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/3180-48-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4692-33-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/4196-44-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/4196-43-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/3180-36-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/4692-35-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/3180-32-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/4196-45-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/3180-48-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

Loads dropped DLL 1 IoCs

Processes:

Order confirmation.exe

pid process

4144 Order confirmation.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

pid	process
4144	Order confirmation.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

Order confirmation.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Order confirmation.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

Order confirmation.exe

pid process

540 Order confirmation.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

Order confirmation.exeOrder confirmation.exe

pid process

4144 Order confirmation.exe
540 Order confirmation.exe

pid	process
540	Order confirmation.exe

pid	process
4144	Order confirmation.exe
540	Order confirmation.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Order confirmation.exeOrder confirmation.exe

description	pid	process	target process
PID 4144 set thread context of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 540 set thread context of 3180	540	Order confirmation.exe	Order confirmation.exe
PID 540 set thread context of 4692	540	Order confirmation.exe	Order confirmation.exe
PID 540 set thread context of 4196	540	Order confirmation.exe	Order confirmation.exe

Drops file in Windows directory 1 IoCs

Processes:

Order confirmation.exe

description ioc process

File opened for modification C:\Windows\forsrgelsens.cur Order confirmation.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\forsrgelsens.cur	Order confirmation.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

Order confirmation.exeOrder confirmation.exe

pid	process
3180	Order confirmation.exe
3180	Order confirmation.exe
4196	Order confirmation.exe
4196	Order confirmation.exe
3180	Order confirmation.exe
3180	Order confirmation.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Order confirmation.exe

pid process

540 Order confirmation.exe
Suspicious behavior: MapViewOfSection 4 IoCs

Processes:

Order confirmation.exeOrder confirmation.exe

pid process

4144 Order confirmation.exe
540 Order confirmation.exe
540 Order confirmation.exe
540 Order confirmation.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Order confirmation.exe

description pid process

Token: SeDebugPrivilege 4196 Order confirmation.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Order confirmation.exe

pid process

540 Order confirmation.exe

pid	process
540	Order confirmation.exe

pid	process
4144	Order confirmation.exe
540	Order confirmation.exe
540	Order confirmation.exe
540	Order confirmation.exe

description	pid	process
Token: SeDebugPrivilege	4196	Order confirmation.exe

pid	process
540	Order confirmation.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Order confirmation.exeOrder confirmation.exe

description	pid	process	target process
PID 4144 wrote to memory of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 4144 wrote to memory of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 4144 wrote to memory of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 4144 wrote to memory of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 4144 wrote to memory of 540	4144	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 3180	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 3180	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 3180	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4692	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4692	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4692	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4196	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4196	540	Order confirmation.exe	Order confirmation.exe
PID 540 wrote to memory of 4196	540	Order confirmation.exe	Order confirmation.exe

C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
"C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
  "C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:540
- - C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kteqglcqwffmnniawkgjgm"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3180
- - C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe" /stext "C:\Users\Admin\AppData\Local\Temp\nnjbhenjsnxyptwegvbkrzpqq"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:4692
- - C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Order confirmation.exe" /stext "C:\Users\Admin\AppData\Local\Temp\xhwuiwylgvpdaztixgneuekzzgin"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b314bf6e44f4521ca13dcba0b1c76c7d

SHA1
50fc6799a78a258b65e7d30227319df4fd4619f3

SHA256
ea14c4d8373f2c4767d61c86c1dffcbe3bfb24e94452a6856c722c543cf12afe

SHA512
61821831295fbd6b6685dc49e0ba0d60771331a758f64dc75f9e988c38acef5aff2d97630f79624582c96b4fbbf86cfdd4b125196955866db89b418bfd037f6e

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

Filesize
4KB

MD5
2f9f3e06c08fbefb9d972eb45910783e

SHA1
f8452829b8404981ee3f7ac2f8f4b16825014c14

SHA256
41fcf3117cab8796adc9854cf66a6533fc2766f0e36abdaf04ce5fd7c13f5a50

SHA512
db33ff568a991b3b7d6574e0b4514236f22d3df30c26593a18d7f2d879be2f6831e9d9361800ca349303ba9c43591643f04c090fb16dfc99f7301e197ff48dec

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsd5BED.tmp\System.dll

Filesize
11KB

MD5
75ed96254fbf894e42058062b4b4f0d1

SHA1
996503f1383b49021eb3427bc28d13b5bbd11977

SHA256
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7

SHA512
58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

Download Submit
memory/540-85-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-88-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-18-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-22-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/540-24-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-145-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-58-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-114-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-112-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-109-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-106-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-102-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-100-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-97-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-94-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-91-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-55-0x00000000370F0000-0x0000000037109000-memory.dmp

Filesize
100KB

Download
memory/540-17-0x0000000077725000-0x0000000077726000-memory.dmp

Filesize
4KB

Download
memory/540-82-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-51-0x00000000370F0000-0x0000000037109000-memory.dmp

Filesize
100KB

Download
memory/540-16-0x0000000077708000-0x0000000077709000-memory.dmp

Filesize
4KB

Download
memory/540-54-0x00000000370F0000-0x0000000037109000-memory.dmp

Filesize
100KB

Download
memory/540-61-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-138-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-79-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-76-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-64-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-67-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-70-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/540-73-0x0000000000480000-0x00000000016D4000-memory.dmp

Filesize
18.3MB

Download
memory/3180-36-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3180-48-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3180-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3180-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3180-28-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4144-14-0x0000000077681000-0x00000000777A1000-memory.dmp

Filesize
1.1MB

Download
memory/4144-15-0x00000000744E4000-0x00000000744E5000-memory.dmp

Filesize
4KB

Download
memory/4196-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4196-44-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4196-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4196-43-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4196-42-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4692-31-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4692-35-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4692-33-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4692-29-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download