remcos | a7ba697a85c7f566061f884edac486b7a6a226f0021fec20f04c1071c9be20c9

General

Target

PO850.exe
Size

1.3MB
MD5

a4337c13c84999f28c2a89eea377b552
SHA1

452b87fbb0c08267c24fee1e7aa9d83293086ebb
SHA256

445d12c6ebab2592a1630ad5777c3dfbba2b1397eca259e3e714687e8d1dd1b6
SHA512

917b6da32d0630f76f70189230dc0bf76138072c7ddc296382c1f3b0ebebcf37860fd328b825758e96f174f921b79887107c187ee2fe5922cb475f0757a4b758
SSDEEP

24576:Vtb20pkaCqT5TBWgNQ7afcl+1K7rDLc6Z7uRdhkW6Clt6A:GVg5tQ7afclj7rDxyREW6W5

Score

10^/10

remcos money discovery rat

Malware Config

Extracted

Family

remcos

Botnet

money

C2

79.110.49.250:4190

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-FU0Z08
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

Signatures

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

Drops startup file 1 IoCs

Processes:

selectedly.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\selectedly.vbs	selectedly.exe

Executes dropped EXE 1 IoCs

Processes:

selectedly.exe

pid	Process
648	selectedly.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/files/0x0032000000023b81-9.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

selectedly.exe

description	pid	Process	procid_target
PID 648 set thread context of 1312	648	selectedly.exe	85

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1560	648	WerFault.exe	84

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

Processes:

PO850.exeselectedly.exesvchost.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO850.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	selectedly.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

selectedly.exe

pid	Process
648	selectedly.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

PO850.exeselectedly.exe

description	pid	Process	procid_target
PID 316 wrote to memory of 648	316	PO850.exe	84
PID 316 wrote to memory of 648	316	PO850.exe	84
PID 316 wrote to memory of 648	316	PO850.exe	84
PID 648 wrote to memory of 1312	648	selectedly.exe	85
PID 648 wrote to memory of 1312	648	selectedly.exe	85
PID 648 wrote to memory of 1312	648	selectedly.exe	85
PID 648 wrote to memory of 1312	648	selectedly.exe	85

C:\Users\Admin\AppData\Local\Temp\PO850.exe
"C:\Users\Admin\AppData\Local\Temp\PO850.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Local\benting\selectedly.exe
  "C:\Users\Admin\AppData\Local\Temp\PO850.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:648
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\PO850.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1312
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 648 -s 688
    3⤵
    - Program crash
    PID:1560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 648 -ip 648
1⤵
PID:4580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\togging

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\Users\Admin\AppData\Local\benting\selectedly.exe

Filesize
1.3MB

MD5
a4337c13c84999f28c2a89eea377b552

SHA1
452b87fbb0c08267c24fee1e7aa9d83293086ebb

SHA256
445d12c6ebab2592a1630ad5777c3dfbba2b1397eca259e3e714687e8d1dd1b6

SHA512
917b6da32d0630f76f70189230dc0bf76138072c7ddc296382c1f3b0ebebcf37860fd328b825758e96f174f921b79887107c187ee2fe5922cb475f0757a4b758

Download Submit
memory/316-6-0x00000000010B0000-0x00000000014B0000-memory.dmp

Filesize
4.0MB

Download
memory/648-18-0x0000000001780000-0x0000000001B80000-memory.dmp

Filesize
4.0MB

Download
memory/1312-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1312-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads