remcos | cff8bf19e834f403b7914c1fae20c0089b2a75a29a769c1e46aa3bb234171d1b

General

Target

Quotation.exe
Size

987KB
MD5

1058789883ec68a66fc099d6cc6fefb9
SHA1

9137b35e3480c2f9fc873e351851d421d8d195d9
SHA256

cff8bf19e834f403b7914c1fae20c0089b2a75a29a769c1e46aa3bb234171d1b
SHA512

54c024fe605a2ac68d5662e20bbb2c8695b8a13dac14e9d9571f001d2f949ffde0fb0a5152e03122336b58390d6e644d35a685a20c7d2f26a6bbcbb50106a4c7
SSDEEP

24576:ovpBEkDWCvU7Ep0EWh04DMRukIFAb4E6T:ovIkDpvU7vtrgI/FAbh6T

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

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-GM05WY
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2832	powershell.exe
2672	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2816 set thread context of 1196	2816	Quotation.exe	36

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

System Information Discovery
T1082

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2816	Quotation.exe
2816	Quotation.exe
2816	Quotation.exe
2816	Quotation.exe
2816	Quotation.exe
2816	Quotation.exe
2816	Quotation.exe
2832	powershell.exe
2672	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2816	Quotation.exe
Token: SeDebugPrivilege	2672	powershell.exe
Token: SeDebugPrivilege	2832	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2832	2816	Quotation.exe	30
PID 2816 wrote to memory of 2832	2816	Quotation.exe	30
PID 2816 wrote to memory of 2832	2816	Quotation.exe	30
PID 2816 wrote to memory of 2832	2816	Quotation.exe	30
PID 2816 wrote to memory of 2672	2816	Quotation.exe	32
PID 2816 wrote to memory of 2672	2816	Quotation.exe	32
PID 2816 wrote to memory of 2672	2816	Quotation.exe	32
PID 2816 wrote to memory of 2672	2816	Quotation.exe	32
PID 2816 wrote to memory of 2712	2816	Quotation.exe	34
PID 2816 wrote to memory of 2712	2816	Quotation.exe	34
PID 2816 wrote to memory of 2712	2816	Quotation.exe	34
PID 2816 wrote to memory of 2712	2816	Quotation.exe	34
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36
PID 2816 wrote to memory of 1196	2816	Quotation.exe	36

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2832
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xPfbiDW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2672
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xPfbiDW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBBEF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2712
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1196

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBBEF.tmp

Filesize
1KB

MD5
2695d232a3ab1a30073bd0b6d7d9d662

SHA1
89d149d127f60b535b7c5b58769affe86e48bc50

SHA256
a5d864bdd4e0a716c9c831dbeda236fe2beacf3f845f06e95f64c9609c1a2996

SHA512
058a54210250fe7ec4a076e4a7ee7f98b8b848993a1a4173894f083cb840ea4b7e6afacb46f14df8ac7aacd5fcba02b076fcba51000490699dfb8e4e6ce6407b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
3b171917f18e1c744973af49af026322

SHA1
ebc16e34fc9edade1d9c87d924512767a7b2b4fb

SHA256
9b8ad38f6f2c8bbfa7813dd5d26dae923b24daf6b403f9a917d1b945dcca8454

SHA512
9bc12ed884a9cf31d6405cd006fa2f27ce4057e229d2fe6ab325073554cdb877e8e0a9cd0066d9ceaaba92654df14609720f9e021776e11e78cc0d5289a9f1bf

Download Submit
memory/1196-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1196-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1196-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2816-36-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-3-0x0000000000880000-0x000000000089E000-memory.dmp

Filesize
120KB

Download
memory/2816-6-0x0000000005C90000-0x0000000005D54000-memory.dmp

Filesize
784KB

Download
memory/2816-4-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2816-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

Filesize
4KB

Download
memory/2816-1-0x0000000000B30000-0x0000000000C2E000-memory.dmp

Filesize
1016KB

Download
memory/2816-2-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download
memory/2816-5-0x0000000074AC0000-0x00000000751AE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads