remcos | 3a15b2df43b3665b869280969adaec6fc18de92f2da83e1d0228d7379fd55e09

General

Target

Supplier Purchase Order - PO0002491.exe
Size

1001KB
MD5

9fe3811c49214479c36a4f4a35e9ca08
SHA1

eddbde04b9751295e209addc60de427c07b4cf1e
SHA256

3a15b2df43b3665b869280969adaec6fc18de92f2da83e1d0228d7379fd55e09
SHA512

18a78507d0ec43da2a68f5fa11b15c2af877b5096f7375d3b4075ae0f269e3205b6c1beadd16216a4523a43506d0962efb8a962449f3906e9e547c825456d1e1
SSDEEP

24576:YLzHqFPLa+P2a13EfOUS2lQfMP+W8sQelk4vOG2ETh:6Lq9r+WPUSSWMGxwlib+

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

192.210.150.14:2404

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-GOFAGZ
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2548	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2288 set thread context of 2816	2288	Supplier Purchase Order - PO0002491.exe	34

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 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	Supplier Purchase Order - PO0002491.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	Supplier Purchase Order - PO0002491.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
1988	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2548	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 2548	2288	Supplier Purchase Order - PO0002491.exe	30
PID 2288 wrote to memory of 2548	2288	Supplier Purchase Order - PO0002491.exe	30
PID 2288 wrote to memory of 2548	2288	Supplier Purchase Order - PO0002491.exe	30
PID 2288 wrote to memory of 2548	2288	Supplier Purchase Order - PO0002491.exe	30
PID 2288 wrote to memory of 1988	2288	Supplier Purchase Order - PO0002491.exe	31
PID 2288 wrote to memory of 1988	2288	Supplier Purchase Order - PO0002491.exe	31
PID 2288 wrote to memory of 1988	2288	Supplier Purchase Order - PO0002491.exe	31
PID 2288 wrote to memory of 1988	2288	Supplier Purchase Order - PO0002491.exe	31
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34
PID 2288 wrote to memory of 2816	2288	Supplier Purchase Order - PO0002491.exe	34

C:\Users\Admin\AppData\Local\Temp\Supplier Purchase Order - PO0002491.exe
"C:\Users\Admin\AppData\Local\Temp\Supplier Purchase Order - PO0002491.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\keHuNxIumw.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2548
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\keHuNxIumw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp96F2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1988
- C:\Users\Admin\AppData\Local\Temp\Supplier Purchase Order - PO0002491.exe
  "C:\Users\Admin\AppData\Local\Temp\Supplier Purchase Order - PO0002491.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2816

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp96F2.tmp

Filesize
1KB

MD5
65b72cc3545825784c2513eafc880e81

SHA1
98fd2abd2cf70ce4209b6652051c3550a98444fb

SHA256
934068f5b814d53b82e878c47bca597d177622d3de724be8c232f5a2d84cd90e

SHA512
b4c2fbd57bf9ef9fcecac1535a4e6c283b3ed177abb5a1607fc817724f8e66106bc8b9958c2ac8829b963476c84dca759647ef5f00202bf76c461cb1a07b0015

Download Submit
memory/2288-33-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-1-0x00000000001B0000-0x00000000002B0000-memory.dmp

Filesize
1024KB

Download
memory/2288-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-3-0x00000000004C0000-0x00000000004DC000-memory.dmp

Filesize
112KB

Download
memory/2288-4-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2288-6-0x0000000005780000-0x0000000005840000-memory.dmp

Filesize
768KB

Download
memory/2288-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2816-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads