remcos | f3d332df7696f05fa4c501050447a6b373adf048f1a0249cd03a5584110b40da

General

Target

UPS_CBIJ90511770131.exe
Size

962KB
MD5

89844adca9d975b9933cea1a576ada58
SHA1

c08481b4cf49fcf2979b2c72213d31c064a760e3
SHA256

f3d332df7696f05fa4c501050447a6b373adf048f1a0249cd03a5584110b40da
SHA512

6c0b8a2d0298f02994fabd39dc2a1da491e7b84bdea55b59863c595db9aeb77b2190b6ce8091c2acb0d7c3078b858b390876a45f281072cc730dfd0a5b095b25
SSDEEP

24576:+CfpCdeGe8+2+NE2HqIvU0BsnpCY3QeEz+9vmvGQJM:bFnepIsGskY3a+Zoe

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

yayabeloo.duckdns.org:6847

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-VPA6N9
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1680 set thread context of 2636	1680	UPS_CBIJ90511770131.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 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	UPS_CBIJ90511770131.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UPS_CBIJ90511770131.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2636	UPS_CBIJ90511770131.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29
PID 1680 wrote to memory of 2636	1680	UPS_CBIJ90511770131.exe	29

C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
"C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680
- C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
  "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2636

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

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
dc90aef9e8cb0cbf1c3b2dbdd43ebb64

SHA1
19b13e5370c02fad7bf2e591c430fa48012ae0ee

SHA256
0025ba155bbb0c41932966413c390cd365bf892a91df73d0e39e940c6d451dfe

SHA512
06f6854954fbbcb674f7839805713b32282dbf8c1d5b89ee5256e14be3eca279999cf92942e637a03bcd4d8d12e4525ff20318721554ad965be636e3f94ef61c

Download Submit
memory/1680-25-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-1-0x0000000000AD0000-0x0000000000BC6000-memory.dmp

Filesize
984KB

Download
memory/1680-2-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-3-0x00000000006A0000-0x00000000006BC000-memory.dmp

Filesize
112KB

Download
memory/1680-4-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/1680-5-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/1680-6-0x0000000005110000-0x00000000051D2000-memory.dmp

Filesize
776KB

Download
memory/1680-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/2636-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2636-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2636-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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