remcos | f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-09-2024 04:21

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General

Target

7b9844639ef183122af8383ce901b8e0.exe
Size

908KB
MD5

7b9844639ef183122af8383ce901b8e0
SHA1

87514d622f74e94720cd77243326dd8c8217dfae
SHA256

f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b
SHA512

c98ad33821fbe4f71480a3ea36133d47dafbbb41dda3c3dc31ff4d6755491ea42a5418179e3f7f9d27fddb55a9b933ae221650b850a53096c6a216d39e151bf0
SSDEEP

24576:XO++gHdGXYcihGy+XKjHjjxHqHlngC9fnfyQ5G/:XO++gHdGXYcT7XkjFHqHlgY6/

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.101.137:5980

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-DO8TMQ
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3444	powershell.exe
2016	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	7b9844639ef183122af8383ce901b8e0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4604 set thread context of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b9844639ef183122af8383ce901b8e0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b9844639ef183122af8383ce901b8e0.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

pid	Process
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
2016	powershell.exe
3444	powershell.exe
4604	7b9844639ef183122af8383ce901b8e0.exe
2016	powershell.exe
3444	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	7b9844639ef183122af8383ce901b8e0.exe
Token: SeDebugPrivilege	3444	powershell.exe
Token: SeDebugPrivilege	2016	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4992	7b9844639ef183122af8383ce901b8e0.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 3444	4604	7b9844639ef183122af8383ce901b8e0.exe	93
PID 4604 wrote to memory of 3444	4604	7b9844639ef183122af8383ce901b8e0.exe	93
PID 4604 wrote to memory of 3444	4604	7b9844639ef183122af8383ce901b8e0.exe	93
PID 4604 wrote to memory of 2016	4604	7b9844639ef183122af8383ce901b8e0.exe	95
PID 4604 wrote to memory of 2016	4604	7b9844639ef183122af8383ce901b8e0.exe	95
PID 4604 wrote to memory of 2016	4604	7b9844639ef183122af8383ce901b8e0.exe	95
PID 4604 wrote to memory of 3612	4604	7b9844639ef183122af8383ce901b8e0.exe	97
PID 4604 wrote to memory of 3612	4604	7b9844639ef183122af8383ce901b8e0.exe	97
PID 4604 wrote to memory of 3612	4604	7b9844639ef183122af8383ce901b8e0.exe	97
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99
PID 4604 wrote to memory of 4992	4604	7b9844639ef183122af8383ce901b8e0.exe	99

C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe
"C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4604
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3444
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JhWUOJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JhWUOJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE8BA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3612
- C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe
  "C:\Users\Admin\AppData\Local\Temp\7b9844639ef183122af8383ce901b8e0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

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
d02ee5e944aab83798c01ef0a86f18f0

SHA1
5668868c9e4cced425105ffe2e636566b5b105b1

SHA256
fa0c9ce03ff8631e32e1c822557697ce1f1f7236fea407dfc140349bd729558b

SHA512
1f18dbbb287840c37506cb3d5ecfaa142ff59452267a8483314b9b7c6acc8baad6499bd9178c55776d2aa2817d3b47c337e77647be654244b682899126a3ecee

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
70a27d461580b8a74eb0124de074c94f

SHA1
b6b320641a7d8c6924287872a9c9216b457f7469

SHA256
82b80b94c772658f4b7c277a6063eec4642b5fc1e2350c5466d0524ce4d72e6b

SHA512
21f36abe88757a6ffc54f1a071c21bcd6fbd8153d56ce7ee6788836932e0b6c819e1cb46ee82be63c66efdac90271e1e75066ec94bf6eb60f15c9909349b36e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nq1mhp1o.fo2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE8BA.tmp

Filesize
1KB

MD5
2d96b470c72a8b50b8f7ec058e916e81

SHA1
64b2b46ca1005814b147ba3380a29b5ca4564c03

SHA256
02c522bd3cd408df733ea2efa8c926a2f4866f0f94d05f7ae5b94fb669803602

SHA512
c07903cdb44e2ec8615b4b9a2bf4f8ada6b5092eb367713bd8fb6900bdf8b3728824d2df40c85b335f5ee4a2705c89992fe0a30d9d5c952edff2e438b2d7484b

Download Submit
memory/2016-86-0x00000000076B0000-0x0000000007D2A000-memory.dmp

Filesize
6.5MB

Download
memory/2016-24-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2016-84-0x0000000006F50000-0x0000000006FF3000-memory.dmp

Filesize
652KB

Download
memory/2016-73-0x0000000006320000-0x000000000633E000-memory.dmp

Filesize
120KB

Download
memory/2016-62-0x0000000006F10000-0x0000000006F42000-memory.dmp

Filesize
200KB

Download
memory/2016-63-0x0000000074E20000-0x0000000074E6C000-memory.dmp

Filesize
304KB

Download
memory/2016-92-0x00000000073A0000-0x00000000073BA000-memory.dmp

Filesize
104KB

Download
memory/2016-100-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2016-42-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2016-34-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3444-90-0x0000000007C30000-0x0000000007C3E000-memory.dmp

Filesize
56KB

Download
memory/3444-74-0x0000000074E20000-0x0000000074E6C000-memory.dmp

Filesize
304KB

Download
memory/3444-22-0x0000000005DF0000-0x0000000005E56000-memory.dmp

Filesize
408KB

Download
memory/3444-19-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3444-35-0x00000000060A0000-0x00000000063F4000-memory.dmp

Filesize
3.3MB

Download
memory/3444-18-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3444-99-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3444-17-0x00000000057C0000-0x0000000005DE8000-memory.dmp

Filesize
6.2MB

Download
memory/3444-16-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3444-23-0x0000000005E60000-0x0000000005EC6000-memory.dmp

Filesize
408KB

Download
memory/3444-15-0x0000000005130000-0x0000000005166000-memory.dmp

Filesize
216KB

Download
memory/3444-20-0x0000000005710000-0x0000000005732000-memory.dmp

Filesize
136KB

Download
memory/3444-93-0x0000000007D20000-0x0000000007D28000-memory.dmp

Filesize
32KB

Download
memory/3444-91-0x0000000007C40000-0x0000000007C54000-memory.dmp

Filesize
80KB

Download
memory/3444-89-0x0000000007C00000-0x0000000007C11000-memory.dmp

Filesize
68KB

Download
memory/3444-88-0x0000000007C80000-0x0000000007D16000-memory.dmp

Filesize
600KB

Download
memory/3444-55-0x00000000066C0000-0x00000000066DE000-memory.dmp

Filesize
120KB

Download
memory/3444-87-0x0000000007A70000-0x0000000007A7A000-memory.dmp

Filesize
40KB

Download
memory/3444-85-0x0000000007A00000-0x0000000007A1A000-memory.dmp

Filesize
104KB

Download
memory/3444-56-0x0000000006780000-0x00000000067CC000-memory.dmp

Filesize
304KB

Download
memory/4604-3-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/4604-1-0x0000000000580000-0x000000000066A000-memory.dmp

Filesize
936KB

Download
memory/4604-10-0x0000000009260000-0x00000000092FC000-memory.dmp

Filesize
624KB

Download
memory/4604-9-0x0000000006B80000-0x0000000006C40000-memory.dmp

Filesize
768KB

Download
memory/4604-8-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4604-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/4604-7-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4604-4-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4604-6-0x00000000052F0000-0x0000000005300000-memory.dmp

Filesize
64KB

Download
memory/4604-5-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/4604-54-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4604-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4992-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4992-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download