remcos | f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5

General

Target

f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
Size

994KB
MD5

6731b5df6330f9985ff98363800962dc
SHA1

308778a3bbafd1bb5b1d7d8bab7801ffd04d2955
SHA256

f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5
SHA512

ce479e75632c2e470eb84cdb42e94534bb21975124dd3f166f9a5aecd62cff3ebf37ee9bb3e4c7110fd23782c2798ced8559ba6b3f5d57b01c6d512d1bb02c0b
SSDEEP

24576:x4FXOPkfKVH2Ix+fPFGuR6BdNoLZT/dZGeBdgE7E8D:y9yVHQftTm8ZT1/dD7E8D

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

80.76.51.19:2404

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-2XABUM
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 4388 set thread context of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85

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	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 1860	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	84
PID 4388 wrote to memory of 1860	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	84
PID 4388 wrote to memory of 1860	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	84
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85
PID 4388 wrote to memory of 3512	4388	f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe	85

C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
"C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4388
- C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
  "C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe"
  2⤵
  PID:1860
- C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe
  "C:\Users\Admin\AppData\Local\Temp\f7e621225671ac8ad38c562c75005271fc1a829343d4a3358ce20988985c5ab5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3512

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

memory/3512-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3512-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4388-18-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4388-1-0x0000000000700000-0x00000000007FE000-memory.dmp

Filesize
1016KB

Download
memory/4388-0-0x000000007532E000-0x000000007532F000-memory.dmp

Filesize
4KB

Download
memory/4388-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/4388-10-0x000000000A020000-0x000000000A0BC000-memory.dmp

Filesize
624KB

Download
memory/4388-9-0x00000000064A0000-0x0000000006562000-memory.dmp

Filesize
776KB

Download
memory/4388-8-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4388-7-0x000000007532E000-0x000000007532F000-memory.dmp

Filesize
4KB

Download
memory/4388-6-0x00000000062A0000-0x00000000062B8000-memory.dmp

Filesize
96KB

Download
memory/4388-5-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4388-4-0x00000000050C0000-0x00000000050CA000-memory.dmp

Filesize
40KB

Download
memory/4388-3-0x00000000050E0000-0x0000000005172000-memory.dmp

Filesize
584KB

Download

Analysis

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