remcos | dada920f3fa567ecbe4781a9e7e4237694e3b21ecc14ac0503c7a528aca1a78c

General

Target

RETURNED PAYMENT.exe
Size

866KB
MD5

0e8d35f26c96b113928840357f4788d5
SHA1

5033be8a563df919390cfa01e556f671068c9001
SHA256

34d3c312a8cb63c3e7be469f70ec3270b66c7d47cb38ed63a87e27ac1fd9c440
SHA512

998a9a570298332ae09d03f6867bc1b4546da6437b33b252ccbd26ec8a2abd16dc09ac7a933900d3233e71e710ba4bd2c153a789b3eb91231a750518ce63a565
SSDEEP

12288:SgVK7c/UrwH77vvgdLZnHVY5peqDyo+TxG2sxVMbmf9y5o4:SizbjveZnHVK/Dyo+TY4blP

Score

10^/10

remcos tips discovery rat

Malware Config

Extracted

Family

remcos

Version

2.7.2 Pro

Botnet

tips

C2

185.140.53.148:1011

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-OZF05G
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5
take_screenshot_title
wikipedia;solitaire;

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2608	2384	RETURNED PAYMENT.exe	33

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 3 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	RETURNED PAYMENT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RETURNED PAYMENT.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
2544	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2384	RETURNED PAYMENT.exe
2384	RETURNED PAYMENT.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	RETURNED PAYMENT.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2608	RETURNED PAYMENT.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2544	2384	RETURNED PAYMENT.exe	30
PID 2384 wrote to memory of 2544	2384	RETURNED PAYMENT.exe	30
PID 2384 wrote to memory of 2544	2384	RETURNED PAYMENT.exe	30
PID 2384 wrote to memory of 2544	2384	RETURNED PAYMENT.exe	30
PID 2384 wrote to memory of 2672	2384	RETURNED PAYMENT.exe	32
PID 2384 wrote to memory of 2672	2384	RETURNED PAYMENT.exe	32
PID 2384 wrote to memory of 2672	2384	RETURNED PAYMENT.exe	32
PID 2384 wrote to memory of 2672	2384	RETURNED PAYMENT.exe	32
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33
PID 2384 wrote to memory of 2608	2384	RETURNED PAYMENT.exe	33

C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe
"C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\glsofWVaFVnYx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB358.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2544
- C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe"
  2⤵
  PID:2672
- C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe
  "C:\Users\Admin\AppData\Local\Temp\RETURNED PAYMENT.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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\tmpB358.tmp

Filesize
1KB

MD5
05088fa8efcc3a4a82ce6ee9ccb4809b

SHA1
d6a58372856e3abddced348f49aa6d465fe1c416

SHA256
71283bfa5617c8ccaab7e0767aa9418f32be75f36978170c081698e58d1c00b1

SHA512
7351f848aaf784706998a25b92f3ea2cae68ac0a9211ec6a6a99c77caf975262a072de00dfe857453957d1093b2021388d121150c47db533a7b4f6129476a6e1

Download Submit
C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
74B

MD5
2ae26a4eb1c843aac087180b16adb64e

SHA1
47639a5879dc6fc5f6a5917af5a5bb3ee408c9d9

SHA256
495a1fe16b2079a6592c5f0b6cf0388b35d2de0cac3a7c208a5a6fafb641445c

SHA512
59018997b9a182da43cd68bf6f31c2b5182bb5f555bafc0d6ed56c8db724604139e03f0ebbd11644669ee7470f4a30a671d59f2dc74b0065cf11b0d1f3a4b234

Download Submit
memory/2384-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2384-1-0x0000000001260000-0x000000000133E000-memory.dmp

Filesize
888KB

Download
memory/2384-2-0x00000000005C0000-0x00000000005CA000-memory.dmp

Filesize
40KB

Download
memory/2384-3-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-4-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2384-5-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2384-6-0x0000000004940000-0x000000000499C000-memory.dmp

Filesize
368KB

Download
memory/2384-27-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2608-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2608-20-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-18-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads