remcos | b1ab36e342ada65f2ba8ebc069b3e6ab1c51c0a092e09addb8f3408cf8fbdf8a

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
07-05-2024 06:15

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General

Target

Bordbns.exe
Size

415KB
MD5

fb5601dbb8729e3c028897e81f8a6561
SHA1

6c8f48c6fa37b84c11f477dfc1699e1f4d19cc08
SHA256

b1ab36e342ada65f2ba8ebc069b3e6ab1c51c0a092e09addb8f3408cf8fbdf8a
SHA512

c412e4d4ed38459b2ba3a7a01b15825c0dc5b7e7b230b1bff4f279183b72ec8bd3b73de0e256ddc6b1251afee8bdb626b49d6e24ca56efeb1390be0bca946870
SSDEEP

6144:nyINO+ZYJH4Zbnqd5+yDKi9h8jRp7UWTvr3+KgerLQ82MbB7FPpHJkx:3FCJH4N9yD9hMvUWTvr3+KgALQ8/NJi

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 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1944-45-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/1944-42-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/1944-59-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2832-44-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2832-40-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2832-55-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 9 IoCs

resource	yara_rule
behavioral1/memory/856-43-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/856-47-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1944-45-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2832-44-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1944-42-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/856-49-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2832-40-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2832-55-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1944-59-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

Loads dropped DLL 1 IoCs

pid	Process
2244	Bordbns.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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Bordbns.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2668	Bordbns.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2244	Bordbns.exe
2668	Bordbns.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2244 set thread context of 2668	2244	Bordbns.exe	28
PID 2668 set thread context of 2832	2668	Bordbns.exe	31
PID 2668 set thread context of 1944	2668	Bordbns.exe	32
PID 2668 set thread context of 856	2668	Bordbns.exe	33

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\visitorial.lnk	Bordbns.exe
File opened for modification	C:\Program Files (x86)\barksome.lik	Bordbns.exe
File opened for modification	C:\Program Files (x86)\Common Files\Papalisation.ove	Bordbns.exe
File opened for modification	C:\Program Files (x86)\Common Files\visitorial.lnk	Bordbns.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\emasculator\solvarmerne.ini	Bordbns.exe
File opened for modification	C:\Windows\resources\yttrocerite\borgerforening.bla	Bordbns.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2832	Bordbns.exe
2832	Bordbns.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2244	Bordbns.exe
2668	Bordbns.exe
2668	Bordbns.exe
2668	Bordbns.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	856	Bordbns.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2668	Bordbns.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2244 wrote to memory of 2668	2244	Bordbns.exe	28
PID 2668 wrote to memory of 2832	2668	Bordbns.exe	31
PID 2668 wrote to memory of 2832	2668	Bordbns.exe	31
PID 2668 wrote to memory of 2832	2668	Bordbns.exe	31
PID 2668 wrote to memory of 2832	2668	Bordbns.exe	31
PID 2668 wrote to memory of 1944	2668	Bordbns.exe	32
PID 2668 wrote to memory of 1944	2668	Bordbns.exe	32
PID 2668 wrote to memory of 1944	2668	Bordbns.exe	32
PID 2668 wrote to memory of 1944	2668	Bordbns.exe	32
PID 2668 wrote to memory of 856	2668	Bordbns.exe	33
PID 2668 wrote to memory of 856	2668	Bordbns.exe	33
PID 2668 wrote to memory of 856	2668	Bordbns.exe	33
PID 2668 wrote to memory of 856	2668	Bordbns.exe	33

C:\Users\Admin\AppData\Local\Temp\Bordbns.exe
"C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\Bordbns.exe
  "C:\Users\Admin\AppData\Local\Temp\Bordbns.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Users\Admin\AppData\Local\Temp\Bordbns.exe
    C:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\ivuvklllglmytbecvynonakbggmb"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2832
- - C:\Users\Admin\AppData\Local\Temp\Bordbns.exe
    C:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\sxaolewmctelvibgeiapqnekonwcrqi"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:1944
- - C:\Users\Admin\AppData\Local\Temp\Bordbns.exe
    C:\Users\Admin\AppData\Local\Temp\Bordbns.exe /stext "C:\Users\Admin\AppData\Local\Temp\vrnymwhgpbwqgopkvtvjbszbpcolkbhnzl"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:856

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
e7c2eb6222a034a72d6a09fbe813e986

SHA1
c08911efcee239f6a44694763e557c76fd8e8521

SHA256
8483d45ac1e2aae9b3771d6e61455a7c1aad62eba204d12b00efa4b95fabdd44

SHA512
4d3896da17982c12c0b539f99cdd3e7b183bd5f55b0ad535d03a6dadee792260e3d52cf6497883fa28ab94dcac1bc47a31f97e3243daadf0c7f764d06d128cca

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
\Users\Admin\AppData\Local\Temp\nsoDE7.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

Download Submit
memory/856-43-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/856-41-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/856-47-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/856-39-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/856-49-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1944-59-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1944-34-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1944-48-0x0000000076E90000-0x0000000077039000-memory.dmp

Filesize
1.7MB

Download
memory/1944-38-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1944-45-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1944-42-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2244-25-0x0000000076E90000-0x0000000077039000-memory.dmp

Filesize
1.7MB

Download
memory/2244-24-0x0000000076E91000-0x0000000076F92000-memory.dmp

Filesize
1.0MB

Download
memory/2668-72-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-79-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-100-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-96-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-93-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-90-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-88-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-28-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-61-0x00000000366A0000-0x00000000366B9000-memory.dmp

Filesize
100KB

Download
memory/2668-64-0x00000000366A0000-0x00000000366B9000-memory.dmp

Filesize
100KB

Download
memory/2668-65-0x00000000366A0000-0x00000000366B9000-memory.dmp

Filesize
100KB

Download
memory/2668-67-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-69-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-27-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-26-0x0000000076E90000-0x0000000077039000-memory.dmp

Filesize
1.7MB

Download
memory/2668-76-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-84-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2668-81-0x0000000000800000-0x0000000001862000-memory.dmp

Filesize
16.4MB

Download
memory/2832-40-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2832-33-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2832-55-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2832-37-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2832-46-0x0000000076E90000-0x0000000077039000-memory.dmp

Filesize
1.7MB

Download
memory/2832-44-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download