remcos | ef815c51ed2d3060393b1fd5c94fba354fb6259db2f22b0ffb92a4ea58086ab6

Analysis

max time kernel
150s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13/01/2025, 15:40

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General

Target

ORDERSPEC817.rtf
Size

552KB
MD5

a874fdd0f5d82f1614bca0635ed48ec6
SHA1

a738040f98fdc2ed57d4aceaf1df7d65aaf52511
SHA256

ef815c51ed2d3060393b1fd5c94fba354fb6259db2f22b0ffb92a4ea58086ab6
SHA512

372399d53d0d26773320cdf11be9224f3d02fb9830a3ac91867be722d5f7cbc6b214e674592b46cde6ca38f5f3ad18560d55fe9be2c599e5d61dd0da27e42d57
SSDEEP

6144:pjwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwy:H

Score

10^/10

remcos remotehost collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.kposlifestyle.design: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
edefdefffff
mouse_option
false
mutex
Rmc-OH1QS4
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 3 IoCs

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

resource	yara_rule
behavioral1/memory/1260-72-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/600-71-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/808-69-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1260-72-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/600-71-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Blocklisted process makes network request 2 IoCs

flow	pid	Process
5	2308	EQNEDT32.EXE
7	2308	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 6 IoCs

pid	Process
2640	plugmgsdh.exe
2636	plugmgsdh.exe
2840	plugmgsdh.exe
600	plugmgsdh.exe
1260	plugmgsdh.exe
808	plugmgsdh.exe

Loads dropped DLL 1 IoCs

pid	Process
2308	EQNEDT32.EXE

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	plugmgsdh.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2640 set thread context of 2636	2640	plugmgsdh.exe	34
PID 2636 set thread context of 600	2636	plugmgsdh.exe	36
PID 2636 set thread context of 1260	2636	plugmgsdh.exe	37
PID 2636 set thread context of 808	2636	plugmgsdh.exe	38

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

System Location Discovery: System Language Discovery 1 TTPs 7 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	plugmgsdh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	plugmgsdh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	plugmgsdh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	plugmgsdh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	plugmgsdh.exe

Office loads VBA resources, possible macro or embedded object present

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2308	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2068	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
600	plugmgsdh.exe
600	plugmgsdh.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2636	plugmgsdh.exe
2636	plugmgsdh.exe
2636	plugmgsdh.exe
2636	plugmgsdh.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	808	plugmgsdh.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2068	WINWORD.EXE
2068	WINWORD.EXE
2636	plugmgsdh.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2640	2308	EQNEDT32.EXE	32
PID 2308 wrote to memory of 2640	2308	EQNEDT32.EXE	32
PID 2308 wrote to memory of 2640	2308	EQNEDT32.EXE	32
PID 2308 wrote to memory of 2640	2308	EQNEDT32.EXE	32
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2640 wrote to memory of 2636	2640	plugmgsdh.exe	34
PID 2636 wrote to memory of 2840	2636	plugmgsdh.exe	35
PID 2636 wrote to memory of 2840	2636	plugmgsdh.exe	35
PID 2636 wrote to memory of 2840	2636	plugmgsdh.exe	35
PID 2636 wrote to memory of 2840	2636	plugmgsdh.exe	35
PID 2636 wrote to memory of 600	2636	plugmgsdh.exe	36
PID 2636 wrote to memory of 600	2636	plugmgsdh.exe	36
PID 2636 wrote to memory of 600	2636	plugmgsdh.exe	36
PID 2636 wrote to memory of 600	2636	plugmgsdh.exe	36
PID 2636 wrote to memory of 600	2636	plugmgsdh.exe	36
PID 2636 wrote to memory of 1260	2636	plugmgsdh.exe	37
PID 2636 wrote to memory of 1260	2636	plugmgsdh.exe	37
PID 2636 wrote to memory of 1260	2636	plugmgsdh.exe	37
PID 2636 wrote to memory of 1260	2636	plugmgsdh.exe	37
PID 2636 wrote to memory of 1260	2636	plugmgsdh.exe	37
PID 2636 wrote to memory of 808	2636	plugmgsdh.exe	38
PID 2636 wrote to memory of 808	2636	plugmgsdh.exe	38
PID 2636 wrote to memory of 808	2636	plugmgsdh.exe	38
PID 2636 wrote to memory of 808	2636	plugmgsdh.exe	38
PID 2636 wrote to memory of 808	2636	plugmgsdh.exe	38
PID 2068 wrote to memory of 3008	2068	WINWORD.EXE	41
PID 2068 wrote to memory of 3008	2068	WINWORD.EXE	41
PID 2068 wrote to memory of 3008	2068	WINWORD.EXE	41
PID 2068 wrote to memory of 3008	2068	WINWORD.EXE	41

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\ORDERSPEC817.rtf"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3008

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
  "C:\Users\Admin\AppData\Roaming\plugmgsdh.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2640
- - C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
    "C:\Users\Admin\AppData\Roaming\plugmgsdh.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2636
  - - C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
      C:\Users\Admin\AppData\Roaming\plugmgsdh.exe /stext "C:\Users\Admin\AppData\Local\Temp\upskakqwxbadajrqtzjy"
      4⤵
      Executes dropped EXE
      PID:2840
  - - C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
      C:\Users\Admin\AppData\Roaming\plugmgsdh.exe /stext "C:\Users\Admin\AppData\Local\Temp\upskakqwxbadajrqtzjy"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:600
  - - C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
      C:\Users\Admin\AppData\Roaming\plugmgsdh.exe /stext "C:\Users\Admin\AppData\Local\Temp\xrxcsdbpljsidxnukkvzqwe"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:1260
  - - C:\Users\Admin\AppData\Roaming\plugmgsdh.exe
      C:\Users\Admin\AppData\Roaming\plugmgsdh.exe /stext "C:\Users\Admin\AppData\Local\Temp\hmcvtvmrzrknndbgtvibbbzofcq"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

T1203

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:\ProgramData\edefdefffff\logs.dat

Filesize
124B

MD5
0d41c3ef4a24ab9937b20a3eb5472444

SHA1
d5d131722f0e2972bbc44c6ad60bb4192ccf58f6

SHA256
36d97897d0cd68d4acdd54d2bf932b27396094262cbfa6500facd9a27e6b4d7a

SHA512
f396ae2b920f6ca183055b4c1080c6237895eeeb46ad01a48afec517c5ea5926e212aa1ec2260e5ef0e9c3a478f7c293ab7935991b5440993f1f217737694af5

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\plugmgsdh.exe

Filesize
1.1MB

MD5
8e9211eea2ba6f1b345b696b10f9518a

SHA1
0d2cb42cee5bc56d6a6fab077e950fefd0af9c43

SHA256
11a4eadb74837d9fdc0f052302016abed805674c458529523101ced2ccaf4346

SHA512
c263aa2bbdd5394eab6d62a8f54ada0f3565ab154cbe754012f92580f5a5f24d347b938810986eaf160d4dc27726ab3b0104aba3ee7b87c0fea6f547c79c349f

Download Submit
memory/600-71-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/600-68-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/600-59-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/808-65-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/808-67-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/808-69-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1260-62-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1260-70-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1260-72-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2068-78-0x00000000713ED000-0x00000000713F8000-memory.dmp

Filesize
44KB

Download
memory/2068-2-0x00000000713ED000-0x00000000713F8000-memory.dmp

Filesize
44KB

Download
memory/2068-0-0x000000002FD41000-0x000000002FD42000-memory.dmp

Filesize
4KB

Download
memory/2068-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2636-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-30-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-42-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-122-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-121-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-80-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2636-83-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2636-84-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2636-85-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-89-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-90-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-113-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-105-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-106-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2636-114-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2640-27-0x0000000000EE0000-0x0000000001008000-memory.dmp

Filesize
1.2MB

Download
memory/2640-28-0x00000000048D0000-0x000000000497C000-memory.dmp

Filesize
688KB

Download
memory/2640-29-0x0000000000330000-0x0000000000338000-memory.dmp

Filesize
32KB

Download