remcos | 7c6848c5d907816fbe03661f4324c6c9ab5c7d959d50cecc40da965aedc92dc6

Analysis

max time kernel
148s
max time network
142s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
20/08/2024, 11:41

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General

Target

Inquiry for Products.exe
Size

721KB
MD5

9fec99ea343976c49fbf7f8c40333d85
SHA1

d59079f8649a90916d4bbd0a1f5e527c429b1e62
SHA256

7c6848c5d907816fbe03661f4324c6c9ab5c7d959d50cecc40da965aedc92dc6
SHA512

1a2cf791c4f86f667017c52d5e93b9757a4231b7d39084e633b77df1409d0949de2b9d45414b3608f5422a3de23d7b1013b3ef7d1e5edea44c782cf1c0f99ada
SSDEEP

12288:oED6qkM+YPomej3yhGynXKPk4pQ4HLF70OjpeP7r9r/+ppppppppppppppppppp/:oED6Vt3jLMELF708w1q

Score

10^/10

remcos df1 collection credential_access discovery rat stealer

Malware Config

Extracted

Family

remcos

Botnet

DF1

method8888.ddns.net:6902

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-PFD7ZG
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 7 IoCs

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

resource	yara_rule
behavioral1/memory/2880-43-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2344-47-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2880-42-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2820-41-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2820-40-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2820-52-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2880-57-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2880-43-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2880-42-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2880-57-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2820-41-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2820-40-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2820-52-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Caspol.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 348 set thread context of 2280	348	Inquiry for Products.exe	32
PID 2280 set thread context of 2820	2280	Caspol.exe	33
PID 2280 set thread context of 2880	2280	Caspol.exe	34
PID 2280 set thread context of 2344	2280	Caspol.exe	35

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
348	Inquiry for Products.exe
348	Inquiry for Products.exe
2820	Caspol.exe
2820	Caspol.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2280	Caspol.exe
2280	Caspol.exe
2280	Caspol.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	348	Inquiry for Products.exe
Token: SeDebugPrivilege	2344	Caspol.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2280	Caspol.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 348 wrote to memory of 1908	348	Inquiry for Products.exe	31
PID 348 wrote to memory of 1908	348	Inquiry for Products.exe	31
PID 348 wrote to memory of 1908	348	Inquiry for Products.exe	31
PID 348 wrote to memory of 1908	348	Inquiry for Products.exe	31
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 348 wrote to memory of 2280	348	Inquiry for Products.exe	32
PID 2280 wrote to memory of 2820	2280	Caspol.exe	33
PID 2280 wrote to memory of 2820	2280	Caspol.exe	33
PID 2280 wrote to memory of 2820	2280	Caspol.exe	33
PID 2280 wrote to memory of 2820	2280	Caspol.exe	33
PID 2280 wrote to memory of 2820	2280	Caspol.exe	33
PID 2280 wrote to memory of 2880	2280	Caspol.exe	34
PID 2280 wrote to memory of 2880	2280	Caspol.exe	34
PID 2280 wrote to memory of 2880	2280	Caspol.exe	34
PID 2280 wrote to memory of 2880	2280	Caspol.exe	34
PID 2280 wrote to memory of 2880	2280	Caspol.exe	34
PID 2280 wrote to memory of 2344	2280	Caspol.exe	35
PID 2280 wrote to memory of 2344	2280	Caspol.exe	35
PID 2280 wrote to memory of 2344	2280	Caspol.exe	35
PID 2280 wrote to memory of 2344	2280	Caspol.exe	35
PID 2280 wrote to memory of 2344	2280	Caspol.exe	35

C:\Users\Admin\AppData\Local\Temp\Inquiry for Products.exe
"C:\Users\Admin\AppData\Local\Temp\Inquiry for Products.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:348
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  PID:1908
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2280
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\vagmkiknskbxpxkonhaqwgcrlgychakqs"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2820
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\fclec"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2880
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\qwypdtgib"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2344

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

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
9fbb1fa84cd1ccb74bbcecab5f71d6fb

SHA1
784a21868d10d9426e2eff18a6f4445e3e05ee0b

SHA256
b53b97cf3e866a989b5d4558d0ec1dbb3b85e3d542a5255324e7e14d03c95517

SHA512
a33ce953d884636001c44a86a7bf3780fa85b8545d47a1dd86ed4278a5b496bda0bd56f959e41d9c854a09d1b646dc073e472c69c9d10983b800853132b21647

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/348-18-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

Filesize
9.9MB

Download
memory/348-1-0x0000000000290000-0x000000000034A000-memory.dmp

Filesize
744KB

Download
memory/348-2-0x000007FEF5970000-0x000007FEF635C000-memory.dmp

Filesize
9.9MB

Download
memory/348-3-0x0000000000920000-0x000000000099E000-memory.dmp

Filesize
504KB

Download
memory/348-4-0x0000000000240000-0x0000000000254000-memory.dmp

Filesize
80KB

Download
memory/348-0-0x000007FEF5973000-0x000007FEF5974000-memory.dmp

Filesize
4KB

Download
memory/2280-62-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2280-58-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2280-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-8-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-5-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2280-61-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2280-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2280-6-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2344-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2344-47-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2344-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2820-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2820-40-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2820-34-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2820-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2820-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2820-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-39-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2880-57-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2880-42-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2880-38-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2880-43-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download