remcos | dbd90ffa51b2ec9e716642d651d5740f2a9e376db28b217dbc31ab89b5362409

Resubmissions

05-09-2024 06:49

240905-hlqemsvdkm 10

05-09-2024 06:43

240905-hg74wswbrh 10

Analysis

max time kernel
44s
max time network
34s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-09-2024 06:49

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General

Target

049ccb277f6c9e2816347b2d51df7ba0N.exe
Size

4.3MB
MD5

049ccb277f6c9e2816347b2d51df7ba0
SHA1

b78da518b845bacca6ecd4595f751a8e6c41c4d6
SHA256

dbd90ffa51b2ec9e716642d651d5740f2a9e376db28b217dbc31ab89b5362409
SHA512

4250cf0ca6815f97265eb7924095c84a8fe41e463bcf172802e72ba5c045f999f23411a994a21d73cab270fe22287e44b33d5314f5b120ab5fad79c53e8a4559
SSDEEP

98304:gC11IMjItWMFAetMtXjxhmZrC11IMjItWMFAetMtXjxhmZY4T:ghSMFjO7mZrhSMFjO7mZY

Score

10^/10

remcos discovery execution persistence rat

Malware Config

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3524	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	049ccb277f6c9e2816347b2d51df7ba0N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	049ccb277f6c9e2816347b2d51df7ba0N.exe

Executes dropped EXE 2 IoCs

pid	Process
1652	._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe
2592	Synaptics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	049ccb277f6c9e2816347b2d51df7ba0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 6000 set thread context of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96

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	049ccb277f6c9e2816347b2d51df7ba0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	049ccb277f6c9e2816347b2d51df7ba0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	049ccb277f6c9e2816347b2d51df7ba0N.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
3524	powershell.exe
3524	powershell.exe
2592	Synaptics.exe
2592	Synaptics.exe
2592	Synaptics.exe
2592	Synaptics.exe
2592	Synaptics.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe
Token: SeDebugPrivilege	3524	powershell.exe
Token: SeDebugPrivilege	2592	Synaptics.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1652	._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 6000 wrote to memory of 3524	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	94
PID 6000 wrote to memory of 3524	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	94
PID 6000 wrote to memory of 3524	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	94
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 6000 wrote to memory of 1764	6000	049ccb277f6c9e2816347b2d51df7ba0N.exe	96
PID 1764 wrote to memory of 1652	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	97
PID 1764 wrote to memory of 1652	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	97
PID 1764 wrote to memory of 1652	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	97
PID 1764 wrote to memory of 2592	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	101
PID 1764 wrote to memory of 2592	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	101
PID 1764 wrote to memory of 2592	1764	049ccb277f6c9e2816347b2d51df7ba0N.exe	101

C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe
"C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.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:6000
- 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\049ccb277f6c9e2816347b2d51df7ba0N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3524
- C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe
  "C:\Users\Admin\AppData\Local\Temp\049ccb277f6c9e2816347b2d51df7ba0N.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1652
- - C:\ProgramData\Synaptics\Synaptics.exe
    "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2592

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:5288

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:4260

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:2468

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:2912

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:5540

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\Desktop\SwitchTrace.cmd" "
1⤵
PID:4860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\Synaptics\Synaptics.exe

Filesize
4.3MB

MD5
049ccb277f6c9e2816347b2d51df7ba0

SHA1
b78da518b845bacca6ecd4595f751a8e6c41c4d6

SHA256
dbd90ffa51b2ec9e716642d651d5740f2a9e376db28b217dbc31ab89b5362409

SHA512
4250cf0ca6815f97265eb7924095c84a8fe41e463bcf172802e72ba5c045f999f23411a994a21d73cab270fe22287e44b33d5314f5b120ab5fad79c53e8a4559

Download Submit
C:\Users\Admin\AppData\Local\Temp\._cache_049ccb277f6c9e2816347b2d51df7ba0N.exe

Filesize
483KB

MD5
87705ce8d428c8701a1efa3669cb5135

SHA1
3d2022f4950b549bf238bf285aa6ac0dc0c075e3

SHA256
543001345cedb9f6962494aafd531be8c1427876b07f339365fd7b20c18fcdce

SHA512
374bd7e76c0341ad3cba5b1f4d949b246b584f227c8c6461cc4798781fe6b8e8e6b64556d3c6bf94cac2aa4b06ccf10bc0b373a7594bbf117a50b5113f75c9d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2og1aiuu.02h.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1764-13-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1764-139-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1764-23-0x0000000001400000-0x0000000001401000-memory.dmp

Filesize
4KB

Download
memory/1764-18-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1764-15-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/1764-14-0x0000000000400000-0x000000000053B000-memory.dmp

Filesize
1.2MB

Download
memory/3524-141-0x0000000006A40000-0x0000000006A72000-memory.dmp

Filesize
200KB

Download
memory/3524-154-0x0000000007410000-0x0000000007A8A000-memory.dmp

Filesize
6.5MB

Download
memory/3524-165-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/3524-162-0x00000000070F0000-0x00000000070F8000-memory.dmp

Filesize
32KB

Download
memory/3524-161-0x0000000007110000-0x000000000712A000-memory.dmp

Filesize
104KB

Download
memory/3524-160-0x0000000007010000-0x0000000007024000-memory.dmp

Filesize
80KB

Download
memory/3524-159-0x0000000007000000-0x000000000700E000-memory.dmp

Filesize
56KB

Download
memory/3524-17-0x0000000002190000-0x00000000021C6000-memory.dmp

Filesize
216KB

Download
memory/3524-19-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/3524-158-0x0000000006FD0000-0x0000000006FE1000-memory.dmp

Filesize
68KB

Download
memory/3524-20-0x0000000004CF0000-0x0000000005318000-memory.dmp

Filesize
6.2MB

Download
memory/3524-157-0x0000000007050000-0x00000000070E6000-memory.dmp

Filesize
600KB

Download
memory/3524-22-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/3524-156-0x0000000006E40000-0x0000000006E4A000-memory.dmp

Filesize
40KB

Download
memory/3524-26-0x0000000004BE0000-0x0000000004C46000-memory.dmp

Filesize
408KB

Download
memory/3524-25-0x0000000004B70000-0x0000000004BD6000-memory.dmp

Filesize
408KB

Download
memory/3524-24-0x00000000049D0000-0x00000000049F2000-memory.dmp

Filesize
136KB

Download
memory/3524-155-0x0000000006DD0000-0x0000000006DEA000-memory.dmp

Filesize
104KB

Download
memory/3524-38-0x0000000005600000-0x0000000005954000-memory.dmp

Filesize
3.3MB

Download
memory/3524-153-0x0000000006A90000-0x0000000006B33000-memory.dmp

Filesize
652KB

Download
memory/3524-63-0x0000000005A80000-0x0000000005A9E000-memory.dmp

Filesize
120KB

Download
memory/3524-64-0x0000000005AC0000-0x0000000005B0C000-memory.dmp

Filesize
304KB

Download
memory/3524-152-0x0000000006070000-0x000000000608E000-memory.dmp

Filesize
120KB

Download
memory/3524-142-0x000000006F6A0000-0x000000006F6EC000-memory.dmp

Filesize
304KB

Download
memory/6000-5-0x0000000005400000-0x000000000540A000-memory.dmp

Filesize
40KB

Download
memory/6000-0-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/6000-2-0x0000000005920000-0x0000000005EC4000-memory.dmp

Filesize
5.6MB

Download
memory/6000-3-0x0000000005410000-0x00000000054A2000-memory.dmp

Filesize
584KB

Download
memory/6000-10-0x0000000006600000-0x0000000006616000-memory.dmp

Filesize
88KB

Download
memory/6000-4-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/6000-1-0x00000000005B0000-0x0000000000A06000-memory.dmp

Filesize
4.3MB

Download
memory/6000-21-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/6000-8-0x0000000074C70000-0x0000000075420000-memory.dmp

Filesize
7.7MB

Download
memory/6000-7-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

Filesize
4KB

Download
memory/6000-6-0x0000000006C80000-0x0000000006C98000-memory.dmp

Filesize
96KB

Download
memory/6000-9-0x00000000065E0000-0x00000000065EE000-memory.dmp

Filesize
56KB

Download
memory/6000-12-0x000000000C300000-0x000000000C39C000-memory.dmp

Filesize
624KB

Download
memory/6000-11-0x00000000090E0000-0x000000000925E000-memory.dmp

Filesize
1.5MB

Download