remcos | b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae

General

Target

b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe
Size

1.1MB
MD5

f44801cfdef9afc811005e8fa67486a7
SHA1

e5c15cd5b46374f6e5292a83d51e017d4608e891
SHA256

b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae
SHA512

d239937e0bb247bc3713326da08bed597bf5c6b56c3b916c3ef4c0f9ae254fad533bc4cf4bf4f0fdb5ee387555b6c138ba956a0c450005be4734ffade196e33f
SSDEEP

24576:X/o41iwtNIZ5p/TvCkV0uf5ZmH1OvrpPICwb/x:g41i0WvCkCua1Opw

Score

10^/10

remcos qhost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

QHost

C2

172.245.208.5:2060

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-2OLA39
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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4508 set thread context of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91

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	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe
4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2004	AddInProcess32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91
PID 4508 wrote to memory of 2004	4508	b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe	91

C:\Users\Admin\AppData\Local\Temp\b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe
"C:\Users\Admin\AppData\Local\Temp\b271fd4baccf44412c3a92f97f16b996248c3c1706bfd29694253ba01ab65fae.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4508
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2004

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
85ff972962bba27187dbea1f78475f97

SHA1
3106eac7fffc034c14b0cb312ccfd718766b6d38

SHA256
3731fb06cb677250c5de6deeec9aec8acea066ebd6de27944127e67adeda97a8

SHA512
ea42530e48fa1daf3463f1042e7885d5d05c5fc4bd03ff3c4770d8e5d24eb95bb905fb4cb9f6eb9cda79d7763b732134673864ee60266aa54967cc1d7b7e3ac2

Download Submit
memory/2004-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2004-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4508-6-0x0000000004F60000-0x0000000004FA4000-memory.dmp

Filesize
272KB

Download
memory/4508-7-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/4508-11-0x0000000006810000-0x000000000682A000-memory.dmp

Filesize
104KB

Download
memory/4508-10-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4508-9-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/4508-21-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4508-8-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4508-12-0x0000000006BD0000-0x0000000006BD6000-memory.dmp

Filesize
24KB

Download
memory/4508-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/4508-5-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4508-4-0x0000000004C60000-0x0000000004CF2000-memory.dmp

Filesize
584KB

Download
memory/4508-3-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/4508-2-0x0000000004AC0000-0x0000000004B5C000-memory.dmp

Filesize
624KB

Download
memory/4508-1-0x0000000000910000-0x0000000000A38000-memory.dmp

Filesize
1.2MB

Download

Analysis

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