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 2264 set thread context of 1968	2264	UPS_CBIJ90511770131.exe	33

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 behavior: EnumeratesProcesses 6 IoCs

pid	Process
2264	UPS_CBIJ90511770131.exe
2264	UPS_CBIJ90511770131.exe
2264	UPS_CBIJ90511770131.exe
2264	UPS_CBIJ90511770131.exe
2264	UPS_CBIJ90511770131.exe
2264	UPS_CBIJ90511770131.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	UPS_CBIJ90511770131.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1968	UPS_CBIJ90511770131.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 2588	2264	UPS_CBIJ90511770131.exe	30
PID 2264 wrote to memory of 2588	2264	UPS_CBIJ90511770131.exe	30
PID 2264 wrote to memory of 2588	2264	UPS_CBIJ90511770131.exe	30
PID 2264 wrote to memory of 2588	2264	UPS_CBIJ90511770131.exe	30
PID 2264 wrote to memory of 2576	2264	UPS_CBIJ90511770131.exe	31
PID 2264 wrote to memory of 2576	2264	UPS_CBIJ90511770131.exe	31
PID 2264 wrote to memory of 2576	2264	UPS_CBIJ90511770131.exe	31
PID 2264 wrote to memory of 2576	2264	UPS_CBIJ90511770131.exe	31
PID 2264 wrote to memory of 2580	2264	UPS_CBIJ90511770131.exe	32
PID 2264 wrote to memory of 2580	2264	UPS_CBIJ90511770131.exe	32
PID 2264 wrote to memory of 2580	2264	UPS_CBIJ90511770131.exe	32
PID 2264 wrote to memory of 2580	2264	UPS_CBIJ90511770131.exe	32
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33
PID 2264 wrote to memory of 1968	2264	UPS_CBIJ90511770131.exe	33

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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
  "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
  2⤵
  PID:2588
- C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
  "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
  2⤵
  PID:2576
- C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe
  "C:\Users\Admin\AppData\Local\Temp\UPS_CBIJ90511770131.exe"
  2⤵
  PID:2580
- 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:1968

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
cb8470bb0fb34065bb99176c4126df4e

SHA1
398c02a1f03be083d416bf99b640f676c4c211be

SHA256
9600a40bffc403699d6a6cc2804d8d87a5a2a101817ecbdf29b2368fc6d5c2fe

SHA512
2519fdfb42fe9821e444b97cfd0acd69a0476b67d0e8771d78137b2b2bd123027e3e6e3917cd8a6f96e8bac3d7904eecb60ab7625ea38ac6ea0743356d1b2780

Download Submit
memory/1968-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1968-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1968-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2264-2-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2264-1-0x00000000000C0000-0x00000000001B6000-memory.dmp

Filesize
984KB

Download
memory/2264-5-0x0000000004C80000-0x0000000004D42000-memory.dmp

Filesize
776KB

Download
memory/2264-4-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2264-0-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2264-3-0x0000000000430000-0x000000000044C000-memory.dmp

Filesize
112KB

Download
memory/2264-17-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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