remcos | 4ed81a9a25e52a99d76805b081679cfe3628756be4bda6a47e365506c7df3a0c

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04/10/2024, 09:01

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General

Target

SwiftPaymentCopy.pif.exe
Size

1.0MB
MD5

46ab34139423cd2978d27245891ce5d5
SHA1

1f48eece26d531e006cd41c43c6092558ee324c0
SHA256

4ed81a9a25e52a99d76805b081679cfe3628756be4bda6a47e365506c7df3a0c
SHA512

b764e97ae1d5a2328c5cef7b331aa9c6fd82715a5a4bb3b7209a31da2354f7dfa28f2b601a62e52cd850cd5aa5e0713fb77e480ef50abec65d18039d7ef92585
SSDEEP

24576:8OAi/eYBrgdPLmmpQNogk+qyh4Rck6jGTo7NE:8hi3BviDg36RlA

Score

10^/10

remcos remotehost collection discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

www.drechftankholding.com:2404

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
dfgh
mouse_option
false
mutex
Rmc-8J6PG9
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

Detected Nirsoft tools 3 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2432-62-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/796-60-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/772-57-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/772-57-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/796-60-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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
2876	powershell.exe
2944	powershell.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1448 set thread context of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 2364 set thread context of 796	2364	vbc.exe	38
PID 2364 set thread context of 772	2364	vbc.exe	39
PID 2364 set thread context of 2432	2364	vbc.exe	40

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 8 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SwiftPaymentCopy.pif.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
2760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1448	SwiftPaymentCopy.pif.exe
1448	SwiftPaymentCopy.pif.exe
2944	powershell.exe
2876	powershell.exe
796	vbc.exe
796	vbc.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2364	vbc.exe
2364	vbc.exe
2364	vbc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1448	SwiftPaymentCopy.pif.exe
Token: SeDebugPrivilege	2944	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe
Token: SeDebugPrivilege	2432	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2364	vbc.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 2876	1448	SwiftPaymentCopy.pif.exe	30
PID 1448 wrote to memory of 2876	1448	SwiftPaymentCopy.pif.exe	30
PID 1448 wrote to memory of 2876	1448	SwiftPaymentCopy.pif.exe	30
PID 1448 wrote to memory of 2876	1448	SwiftPaymentCopy.pif.exe	30
PID 1448 wrote to memory of 2944	1448	SwiftPaymentCopy.pif.exe	32
PID 1448 wrote to memory of 2944	1448	SwiftPaymentCopy.pif.exe	32
PID 1448 wrote to memory of 2944	1448	SwiftPaymentCopy.pif.exe	32
PID 1448 wrote to memory of 2944	1448	SwiftPaymentCopy.pif.exe	32
PID 1448 wrote to memory of 2760	1448	SwiftPaymentCopy.pif.exe	33
PID 1448 wrote to memory of 2760	1448	SwiftPaymentCopy.pif.exe	33
PID 1448 wrote to memory of 2760	1448	SwiftPaymentCopy.pif.exe	33
PID 1448 wrote to memory of 2760	1448	SwiftPaymentCopy.pif.exe	33
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 1448 wrote to memory of 2364	1448	SwiftPaymentCopy.pif.exe	36
PID 2364 wrote to memory of 796	2364	vbc.exe	38
PID 2364 wrote to memory of 796	2364	vbc.exe	38
PID 2364 wrote to memory of 796	2364	vbc.exe	38
PID 2364 wrote to memory of 796	2364	vbc.exe	38
PID 2364 wrote to memory of 796	2364	vbc.exe	38
PID 2364 wrote to memory of 772	2364	vbc.exe	39
PID 2364 wrote to memory of 772	2364	vbc.exe	39
PID 2364 wrote to memory of 772	2364	vbc.exe	39
PID 2364 wrote to memory of 772	2364	vbc.exe	39
PID 2364 wrote to memory of 772	2364	vbc.exe	39
PID 2364 wrote to memory of 2432	2364	vbc.exe	40
PID 2364 wrote to memory of 2432	2364	vbc.exe	40
PID 2364 wrote to memory of 2432	2364	vbc.exe	40
PID 2364 wrote to memory of 2432	2364	vbc.exe	40
PID 2364 wrote to memory of 2432	2364	vbc.exe	40

C:\Users\Admin\AppData\Local\Temp\SwiftPaymentCopy.pif.exe
"C:\Users\Admin\AppData\Local\Temp\SwiftPaymentCopy.pif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448
- 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\SwiftPaymentCopy.pif.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2876
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lZqUPD.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lZqUPD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4099.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2760
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\vyvyioodulwbrzajisrqecsunxfvo"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:796
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\gsiqjhzfitogbfwnsdekphflwexwhjdz"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:772
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\qmoj"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2432

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\dfgh\logs.dat

Filesize
144B

MD5
d17ec373aaa4d10d8c73c9e3c00404ba

SHA1
0de4d38ab8eeb4c7934fd940c95cff14aa8fb3a4

SHA256
6d4f96c1e706541ee6cf05e190b377b2fdbdc8639438ac6888d25d044e846a3f

SHA512
dc46f17a42ac6cfdf1e68c6bba721147e3f202b16743039294c1852648466b2983904de83a52a228b900cd2d3cc1f75fd4d7101b9dc62b3d3b4e77f9485c4add

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4099.tmp

Filesize
1KB

MD5
33cbb15c7afd7ca9bd6275269a856aca

SHA1
1bdddcfe9f15f455a860c8eae2d4814ff780f5bb

SHA256
3d5fe6eab9ef072e94b1928b9289cb108f7c1f029b9efa62a0b8b4c9293f6869

SHA512
5c58da2634fc062bc5a058c30d2bfb4a1c304be8b9f2d1e16df789aba8b3070cc78df80c7577d4b29c4460259ace353ded3032ac1685de6d64a827a37eb755df

Download Submit
C:\Users\Admin\AppData\Local\Temp\vyvyioodulwbrzajisrqecsunxfvo

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
636b806c262875fd9c6e314caa732663

SHA1
864bfc92aafbdd1f6dbe57ae878e01b195309099

SHA256
40512f55a8940959902f33582cd3069f3f6dea3bd185bf6d68fd26cbf3bace44

SHA512
bd649c37d51d34c3f9b80c03851f6718026be6b25cecd3e4f55bf528a7c69f18000e8ed361551c79ae447b290e0157a6fe84f9502e585653d048dfb81d2c4135

Download Submit
memory/772-57-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/772-54-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/772-55-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/796-52-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/796-60-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/796-56-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1448-4-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/1448-0-0x000000007431E000-0x000000007431F000-memory.dmp

Filesize
4KB

Download
memory/1448-42-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-6-0x0000000005A70000-0x0000000005B30000-memory.dmp

Filesize
768KB

Download
memory/1448-5-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-3-0x00000000009F0000-0x0000000000A0E000-memory.dmp

Filesize
120KB

Download
memory/1448-2-0x0000000074310000-0x00000000749FE000-memory.dmp

Filesize
6.9MB

Download
memory/1448-1-0x0000000000E20000-0x0000000000F2A000-memory.dmp

Filesize
1.0MB

Download
memory/2364-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-35-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2364-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-69-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2364-73-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2364-72-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2364-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2364-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2432-59-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2432-62-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2432-61-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download