remcos | 695cd128002012ec8d9def80c1ef282520e9b142f7bcfffbcb1a920a3829b67a

Analysis

max time kernel
148s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-09-2024 09:10

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General

Target

Quote best offer 20240911.exe
Size

3.5MB
MD5

7bd27f6dfbd7365177002cc97b8469b3
SHA1

52e4f5ece078e05bafc76000476abdd2e480a109
SHA256

695cd128002012ec8d9def80c1ef282520e9b142f7bcfffbcb1a920a3829b67a
SHA512

2d0a3f3436ee28af53735ec5906aa163ea8ef6a86704f61ded40a23947e5f93668006f62786303f3d8d8239ab82383c2f427a0085bc6328fed762ceb3266bf54
SSDEEP

12288:TFcC/bJEhZ6KCIZb5mp89Kaa+wggnmB+yhCJJHFxHtlU5jnupdI4qcCB:hxbiGIe8Az+TNZh+RrNlUpup3tCB

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:52121

officerem.duckdns.org:52121

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-6GPUH1
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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2380 set thread context of 2616	2380	Quote best offer 20240911.exe	37

System Location Discovery: System Language Discovery 1 TTPs 1 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	iexplore.exe

Runs regedit.exe 1 IoCs

pid	Process
2496	regedit.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	Quote best offer 20240911.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2164	2380	Quote best offer 20240911.exe	30
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 2496	2380	Quote best offer 20240911.exe	31
PID 2380 wrote to memory of 3064	2380	Quote best offer 20240911.exe	32
PID 2380 wrote to memory of 3064	2380	Quote best offer 20240911.exe	32
PID 2380 wrote to memory of 3064	2380	Quote best offer 20240911.exe	32
PID 2380 wrote to memory of 3064	2380	Quote best offer 20240911.exe	32
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2720	2380	Quote best offer 20240911.exe	33
PID 2380 wrote to memory of 2828	2380	Quote best offer 20240911.exe	34
PID 2380 wrote to memory of 2828	2380	Quote best offer 20240911.exe	34
PID 2380 wrote to memory of 2828	2380	Quote best offer 20240911.exe	34
PID 2380 wrote to memory of 2828	2380	Quote best offer 20240911.exe	34
PID 2380 wrote to memory of 2696	2380	Quote best offer 20240911.exe	35
PID 2380 wrote to memory of 2696	2380	Quote best offer 20240911.exe	35
PID 2380 wrote to memory of 2696	2380	Quote best offer 20240911.exe	35
PID 2380 wrote to memory of 2696	2380	Quote best offer 20240911.exe	35
PID 2380 wrote to memory of 2840	2380	Quote best offer 20240911.exe	36
PID 2380 wrote to memory of 2840	2380	Quote best offer 20240911.exe	36
PID 2380 wrote to memory of 2840	2380	Quote best offer 20240911.exe	36
PID 2380 wrote to memory of 2840	2380	Quote best offer 20240911.exe	36
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2616	2380	Quote best offer 20240911.exe	37
PID 2380 wrote to memory of 2756	2380	Quote best offer 20240911.exe	38
PID 2380 wrote to memory of 2756	2380	Quote best offer 20240911.exe	38

C:\Users\Admin\AppData\Local\Temp\Quote best offer 20240911.exe
"C:\Users\Admin\AppData\Local\Temp\Quote best offer 20240911.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\System32\calc.exe
  "C:\Windows\System32\calc.exe"
  2⤵
  PID:2164
- C:\Windows\regedit.exe
  "C:\Windows\regedit.exe"
  2⤵
  - Runs regedit.exe
  PID:2496
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  PID:3064
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:2720
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\ilasm.exe"
  2⤵
  PID:2828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  PID:2696
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_wp.exe"
  2⤵
  PID:2840
- C:\Program Files (x86)\Internet Explorer\iexplore.exe
  "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2616
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2380 -s 760
  2⤵
  PID:2756

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

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/2164-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-6-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-8-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-4-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-10-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2164-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2380-1-0x0000000000190000-0x0000000000198000-memory.dmp

Filesize
32KB

Download
memory/2380-0-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

Filesize
4KB

Download
memory/2380-3-0x0000000002220000-0x00000000022EE000-memory.dmp

Filesize
824KB

Download
memory/2380-2-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp

Filesize
9.9MB

Download
memory/2380-53-0x000007FEF58F3000-0x000007FEF58F4000-memory.dmp

Filesize
4KB

Download
memory/2380-54-0x000007FEF58F0000-0x000007FEF62DC000-memory.dmp

Filesize
9.9MB

Download
memory/2616-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download