remcos | 57fc9b56b7887f6e0fd20e60199d0123db28f2051abfabf7b924298c276cdf91

Analysis

max time kernel
148s
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
06-09-2024 21:12

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General

Target

IT Gadget_RFQ.exe
Size

975KB
MD5

826b3ba76c427c9ddc756b6c84cd39f5
SHA1

dd47f1472496c0137c5ba9f03bf6e8d55158f651
SHA256

c6b113d59ce488200203bb30c67ed4b9ae483eb398b0e6cfa69357e3e20bc051
SHA512

6a15c01ac8e3acec2e596cf384e7c2f60676e7a3fa82b40bb397c9d6d05ab8c49895753ea7f1cb4d2fb1c72e036ea5415668d482e8e908b35351d957aa1391c8
SSDEEP

24576:OUobyWLfvFCY7BgbOtAmAGXB+PcU0LNlL:XgLfvIEBgDmAG2cvPL

Score

10^/10

remcos discovery execution 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
1000	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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	IT Gadget_RFQ.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4944 set thread context of 1428	4944	IT Gadget_RFQ.exe	99

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3848	1428	WerFault.exe	99

System Location Discovery: System Language Discovery 1 TTPs 3 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IT Gadget_RFQ.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
3060	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
1000	powershell.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
4944	IT Gadget_RFQ.exe
1000	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	IT Gadget_RFQ.exe
Token: SeDebugPrivilege	1000	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 1000	4944	IT Gadget_RFQ.exe	94
PID 4944 wrote to memory of 1000	4944	IT Gadget_RFQ.exe	94
PID 4944 wrote to memory of 1000	4944	IT Gadget_RFQ.exe	94
PID 4944 wrote to memory of 3060	4944	IT Gadget_RFQ.exe	96
PID 4944 wrote to memory of 3060	4944	IT Gadget_RFQ.exe	96
PID 4944 wrote to memory of 3060	4944	IT Gadget_RFQ.exe	96
PID 4944 wrote to memory of 396	4944	IT Gadget_RFQ.exe	98
PID 4944 wrote to memory of 396	4944	IT Gadget_RFQ.exe	98
PID 4944 wrote to memory of 396	4944	IT Gadget_RFQ.exe	98
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99
PID 4944 wrote to memory of 1428	4944	IT Gadget_RFQ.exe	99

C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.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:4944
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yBciedAUQyWGH.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1000
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yBciedAUQyWGH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE82.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3060
- C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.exe"
  2⤵
  PID:396
- C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\IT Gadget_RFQ.exe"
  2⤵
  PID:1428
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1428 -s 560
    3⤵
    - Program crash
    PID:3848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1428 -ip 1428
1⤵
PID:4604

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nbtgwkbo.ycg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE82.tmp

Filesize
1KB

MD5
4365652aaed29c686c1ae3ddfc373125

SHA1
83fb2f8d63bf163526621b18ac33d2381b362ef6

SHA256
bdc11a57fcfe1231a024ed7af2e6a1bfa04eb30da5db34648a5eff74b43ba4a4

SHA512
c0c26426901b4fa725b19edb82120b7cc9c6ce21d47463c91e1862cacdadf5864b2582b4dc04333d43e1ce22ad7a3b321095b747e7a59284fa516e410f1f6e5b

Download Submit
memory/1000-43-0x0000000075420000-0x000000007546C000-memory.dmp

Filesize
304KB

Download
memory/1000-55-0x0000000007E30000-0x00000000084AA000-memory.dmp

Filesize
6.5MB

Download
memory/1000-66-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/1000-63-0x0000000007B00000-0x0000000007B08000-memory.dmp

Filesize
32KB

Download
memory/1000-62-0x0000000007B20000-0x0000000007B3A000-memory.dmp

Filesize
104KB

Download
memory/1000-61-0x0000000007A20000-0x0000000007A34000-memory.dmp

Filesize
80KB

Download
memory/1000-60-0x0000000007A10000-0x0000000007A1E000-memory.dmp

Filesize
56KB

Download
memory/1000-36-0x0000000005E90000-0x00000000061E4000-memory.dmp

Filesize
3.3MB

Download
memory/1000-59-0x00000000079E0000-0x00000000079F1000-memory.dmp

Filesize
68KB

Download
memory/1000-15-0x0000000004F10000-0x0000000004F46000-memory.dmp

Filesize
216KB

Download
memory/1000-16-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/1000-17-0x0000000005680000-0x0000000005CA8000-memory.dmp

Filesize
6.2MB

Download
memory/1000-18-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/1000-58-0x0000000007A60000-0x0000000007AF6000-memory.dmp

Filesize
600KB

Download
memory/1000-20-0x0000000005510000-0x0000000005532000-memory.dmp

Filesize
136KB

Download
memory/1000-57-0x0000000007850000-0x000000000785A000-memory.dmp

Filesize
40KB

Download
memory/1000-22-0x0000000005D20000-0x0000000005D86000-memory.dmp

Filesize
408KB

Download
memory/1000-56-0x00000000077E0000-0x00000000077FA000-memory.dmp

Filesize
104KB

Download
memory/1000-21-0x0000000005CB0000-0x0000000005D16000-memory.dmp

Filesize
408KB

Download
memory/1000-54-0x00000000076B0000-0x0000000007753000-memory.dmp

Filesize
652KB

Download
memory/1000-53-0x0000000006A20000-0x0000000006A3E000-memory.dmp

Filesize
120KB

Download
memory/1000-42-0x0000000007470000-0x00000000074A2000-memory.dmp

Filesize
200KB

Download
memory/1000-40-0x0000000006A90000-0x0000000006ADC000-memory.dmp

Filesize
304KB

Download
memory/1000-39-0x00000000064B0000-0x00000000064CE000-memory.dmp

Filesize
120KB

Download
memory/1428-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1428-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1428-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1428-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1428-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4944-7-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

Filesize
4KB

Download
memory/4944-5-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/4944-4-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4944-38-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/4944-0-0x0000000074B7E000-0x0000000074B7F000-memory.dmp

Filesize
4KB

Download
memory/4944-2-0x00000000052E0000-0x0000000005884000-memory.dmp

Filesize
5.6MB

Download
memory/4944-10-0x00000000089E0000-0x0000000008A7C000-memory.dmp

Filesize
624KB

Download
memory/4944-8-0x0000000074B70000-0x0000000075320000-memory.dmp

Filesize
7.7MB

Download
memory/4944-9-0x00000000060E0000-0x00000000061A0000-memory.dmp

Filesize
768KB

Download
memory/4944-6-0x0000000004EE0000-0x0000000004EF8000-memory.dmp

Filesize
96KB

Download
memory/4944-1-0x0000000000130000-0x000000000022A000-memory.dmp

Filesize
1000KB

Download
memory/4944-3-0x0000000004C20000-0x0000000004CB2000-memory.dmp

Filesize
584KB

Download