remcos | be0c5e38edc7aba393016c5cdf21d7a93b2daf78395ced609104f7055fd5f162

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2022 18:58

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General

Target

SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe
Size

883KB
MD5

d693283a2b6c3a4b36f503b741cef17a
SHA1

d38ba08bce1821bf81d76c1e5b7b769c6681f159
SHA256

be0c5e38edc7aba393016c5cdf21d7a93b2daf78395ced609104f7055fd5f162
SHA512

0db444e29a7c574a91e140c06d84a66aa84d3884d4d593b5de8be50ee84acc8209831569aaa636b80a003ef240b2954a3929297445e08f30ca7ca3f995de30d6
SSDEEP

12288:NJ1bM9KvvqzRDYCIbw4IK2HBNxIJqRMj4V9N8kgJFT1scYq6y7qPg:etsENO2Mj4Gk4FTOq6y7qPg

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

bodhansanders.hopto.org:2490

[email protected]:2490

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-G7HDVY
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

Executes dropped EXE 2 IoCs

pid	Process
1800	taxrecords.exe
748	taxrecords.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1748 set thread context of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1800 set thread context of 2340	1800	taxrecords.exe	103
PID 748 set thread context of 4328	748	taxrecords.exe	120

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2196	4556	WerFault.exe	85

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2112	schtasks.exe
5068	schtasks.exe
1676	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe
Token: SeDebugPrivilege	1800	taxrecords.exe
Token: SeDebugPrivilege	748	taxrecords.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2340	RegAsm.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 4556	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	85
PID 1748 wrote to memory of 1000	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	87
PID 1748 wrote to memory of 1000	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	87
PID 1748 wrote to memory of 1000	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	87
PID 1748 wrote to memory of 4260	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	88
PID 1748 wrote to memory of 4260	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	88
PID 1748 wrote to memory of 4260	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	88
PID 1748 wrote to memory of 1056	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	90
PID 1748 wrote to memory of 1056	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	90
PID 1748 wrote to memory of 1056	1748	SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe	90
PID 4260 wrote to memory of 2112	4260	cmd.exe	93
PID 4260 wrote to memory of 2112	4260	cmd.exe	93
PID 4260 wrote to memory of 2112	4260	cmd.exe	93
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2340	1800	taxrecords.exe	103
PID 1800 wrote to memory of 2260	1800	taxrecords.exe	104
PID 1800 wrote to memory of 2260	1800	taxrecords.exe	104
PID 1800 wrote to memory of 2260	1800	taxrecords.exe	104
PID 1800 wrote to memory of 2336	1800	taxrecords.exe	105
PID 1800 wrote to memory of 2336	1800	taxrecords.exe	105
PID 1800 wrote to memory of 2336	1800	taxrecords.exe	105
PID 1800 wrote to memory of 4900	1800	taxrecords.exe	107
PID 1800 wrote to memory of 4900	1800	taxrecords.exe	107
PID 1800 wrote to memory of 4900	1800	taxrecords.exe	107
PID 2336 wrote to memory of 5068	2336	cmd.exe	110
PID 2336 wrote to memory of 5068	2336	cmd.exe	110
PID 2336 wrote to memory of 5068	2336	cmd.exe	110
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 4328	748	taxrecords.exe	120
PID 748 wrote to memory of 3488	748	taxrecords.exe	121
PID 748 wrote to memory of 3488	748	taxrecords.exe	121
PID 748 wrote to memory of 3488	748	taxrecords.exe	121
PID 748 wrote to memory of 4296	748	taxrecords.exe	122

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4556
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4556 -s 636
    3⤵
    - Program crash
    PID:2196
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\taxrecords"
  2⤵
  PID:1000
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4260
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:2112
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.IL.Trojan.MSILZilla.22441.31968.10217.exe" "C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe"
  2⤵
  PID:1056

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4556 -ip 4556
1⤵
PID:3736

C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe
C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:2340
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\taxrecords"
  2⤵
  PID:2260
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:5068
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe" "C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe"
  2⤵
  PID:4900

C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe
C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:748
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4328
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\taxrecords"
  2⤵
  PID:3488
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
  2⤵
  PID:4296
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:1676
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe" "C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe"
  2⤵
  PID:1208

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\taxrecords.exe.log

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe

Filesize
883KB

MD5
d693283a2b6c3a4b36f503b741cef17a

SHA1
d38ba08bce1821bf81d76c1e5b7b769c6681f159

SHA256
be0c5e38edc7aba393016c5cdf21d7a93b2daf78395ced609104f7055fd5f162

SHA512
0db444e29a7c574a91e140c06d84a66aa84d3884d4d593b5de8be50ee84acc8209831569aaa636b80a003ef240b2954a3929297445e08f30ca7ca3f995de30d6

Download Submit
C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe

Filesize
883KB

MD5
d693283a2b6c3a4b36f503b741cef17a

SHA1
d38ba08bce1821bf81d76c1e5b7b769c6681f159

SHA256
be0c5e38edc7aba393016c5cdf21d7a93b2daf78395ced609104f7055fd5f162

SHA512
0db444e29a7c574a91e140c06d84a66aa84d3884d4d593b5de8be50ee84acc8209831569aaa636b80a003ef240b2954a3929297445e08f30ca7ca3f995de30d6

Download Submit
C:\Users\Admin\AppData\Roaming\taxrecords\taxrecords.exe

Filesize
883KB

MD5
d693283a2b6c3a4b36f503b741cef17a

SHA1
d38ba08bce1821bf81d76c1e5b7b769c6681f159

SHA256
be0c5e38edc7aba393016c5cdf21d7a93b2daf78395ced609104f7055fd5f162

SHA512
0db444e29a7c574a91e140c06d84a66aa84d3884d4d593b5de8be50ee84acc8209831569aaa636b80a003ef240b2954a3929297445e08f30ca7ca3f995de30d6

Download Submit
memory/748-167-0x0000000000CB0000-0x0000000000D92000-memory.dmp

Filesize
904KB

Download
memory/1748-132-0x0000000000050000-0x0000000000132000-memory.dmp

Filesize
904KB

Download
memory/1800-153-0x0000000000CB0000-0x0000000000D92000-memory.dmp

Filesize
904KB

Download
memory/2340-156-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2340-157-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2340-163-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2340-164-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4328-172-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4328-171-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4328-174-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4556-148-0x0000000000600000-0x000000000067F000-memory.dmp

Filesize
508KB

Download
memory/4556-142-0x0000000000600000-0x000000000067F000-memory.dmp

Filesize
508KB

Download
memory/4556-149-0x0000000000600000-0x000000000067F000-memory.dmp

Filesize
508KB

Download
memory/4556-135-0x0000000000600000-0x000000000067F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads