remcos | d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 03:36

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General

Target

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe
Size

611KB
MD5

6907c3c8e2814879824b061d2526bd2e
SHA1

0657505c0b1e8fd388d553663d7e0c3f5200eaf1
SHA256

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591
SHA512

8b3abc3238308e757d215a311fbb9cba5c7e78fae7871faceda01effd7e0e1fd2f0c46877aa4e656c0b2d9a645333aa20ed701a7ec275a29ed0325fffc2ca13c
SSDEEP

12288:8zBB2EzqBTMudgkVJnQb7WvpQOSSQNx6qZ5:aB2EzqBIudgkTQb7Wu58i5

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

162.251.122.76:7119

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-P2SX34
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
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

description pid process target process

PID 2816 created 3572 2816 d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe Explorer.EXE

description	pid	process	target process
PID 2816 created 3572	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	Explorer.EXE

Drops startup file 1 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ChannelUris.vbs	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

description	pid	process	target process
PID 2816 set thread context of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe

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

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

pid process

2816 d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

pid	process
2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

description	pid	process
Token: SeDebugPrivilege	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe
Token: SeDebugPrivilege	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe

description	pid	process	target process
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe
PID 2816 wrote to memory of 2320	2816	d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe	InstallUtil.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3572
- C:\Users\Admin\AppData\Local\Temp\d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe
  "C:\Users\Admin\AppData\Local\Temp\d721a704452238e2c80830950bb4fecab86c4fe5b214c303afdcd84074ca2591.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2320-1100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2320-1106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2816-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2816-1-0x0000000000A70000-0x0000000000B0E000-memory.dmp

Filesize
632KB

Download
memory/2816-2-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-3-0x0000000006770000-0x0000000006894000-memory.dmp

Filesize
1.1MB

Download
memory/2816-31-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-35-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-63-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-67-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-65-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-61-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-59-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-57-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-55-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-53-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-51-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-49-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-47-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-45-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-43-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-41-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-39-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-37-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-33-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-29-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-27-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-25-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-23-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-21-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-19-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-15-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-13-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-11-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-9-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-7-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-5-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-17-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-4-0x0000000006770000-0x000000000688E000-memory.dmp

Filesize
1.1MB

Download
memory/2816-1078-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1079-0x0000000006A30000-0x0000000006AC6000-memory.dmp

Filesize
600KB

Download
memory/2816-1080-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

Filesize
304KB

Download
memory/2816-1084-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1086-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2816-1085-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1087-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1088-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1089-0x0000000007460000-0x0000000007A04000-memory.dmp

Filesize
5.6MB

Download
memory/2816-1090-0x00000000062B0000-0x0000000006304000-memory.dmp

Filesize
336KB

Download
memory/2816-1091-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2816-1097-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download