remcos | d5bc991d8b0e51e45a1b9b9baa71dda7f7dfd8e769e3a641d0cda1077bd01b04

Analysis

max time kernel
148s
max time network
129s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/01/2024, 14:12

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General

Target
PO-2413120.exe
Size 989KB
Sample240131-rhtsbsffhr
SHA256 d5bc991d8b0e51e45a1b9b9baa71dda7f7dfd8e769e3a641d0cda1077bd01b04
MD5 7e2567feb06347258efd3722683a8cee
SHA1 f9d174070758ad9bafb3598f24495d47ecee936d
SHA512 6e2d804b45b81ddb42590ce2ee8fc82553906d75fff1091712fa36cada76b236a6c47cd2ad54d3efeb6c056a9be0478ba1f35ec543bbc777917b46ea263f2375
SSDEEP 24576:KMr8bshYpK2r0L05CQAeqKML9eT9qrTInWKraA:zwbYtL05lAeHMLstNr
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos desk collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

DESK

198.27.121.194:2024

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-EQJXDT
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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1796-65-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/1796-84-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1092-61-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1092-59-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1092-78-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral1/memory/1092-61-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1092-59-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1796-65-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/1760-70-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1760-71-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1092-78-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1796-84-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	PO-2413120.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2448 set thread context of 1616	2448	PO-2413120.exe	34
PID 1616 set thread context of 1092	1616	PO-2413120.exe	40
PID 1616 set thread context of 1796	1616	PO-2413120.exe	42
PID 1616 set thread context of 1760	1616	PO-2413120.exe	41

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2480	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2448	PO-2413120.exe
2168	powershell.exe
1092	PO-2413120.exe
1092	PO-2413120.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1616	PO-2413120.exe
1616	PO-2413120.exe
1616	PO-2413120.exe
1616	PO-2413120.exe
1616	PO-2413120.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	PO-2413120.exe
Token: SeDebugPrivilege	2168	powershell.exe
Token: SeDebugPrivilege	1760	PO-2413120.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1616	PO-2413120.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1616	PO-2413120.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2168	2448	PO-2413120.exe	30
PID 2448 wrote to memory of 2168	2448	PO-2413120.exe	30
PID 2448 wrote to memory of 2168	2448	PO-2413120.exe	30
PID 2448 wrote to memory of 2168	2448	PO-2413120.exe	30
PID 2448 wrote to memory of 2480	2448	PO-2413120.exe	32
PID 2448 wrote to memory of 2480	2448	PO-2413120.exe	32
PID 2448 wrote to memory of 2480	2448	PO-2413120.exe	32
PID 2448 wrote to memory of 2480	2448	PO-2413120.exe	32
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 2448 wrote to memory of 1616	2448	PO-2413120.exe	34
PID 1616 wrote to memory of 1192	1616	PO-2413120.exe	37
PID 1616 wrote to memory of 1192	1616	PO-2413120.exe	37
PID 1616 wrote to memory of 1192	1616	PO-2413120.exe	37
PID 1616 wrote to memory of 1192	1616	PO-2413120.exe	37
PID 1616 wrote to memory of 2532	1616	PO-2413120.exe	39
PID 1616 wrote to memory of 2532	1616	PO-2413120.exe	39
PID 1616 wrote to memory of 2532	1616	PO-2413120.exe	39
PID 1616 wrote to memory of 2532	1616	PO-2413120.exe	39
PID 1616 wrote to memory of 1092	1616	PO-2413120.exe	40
PID 1616 wrote to memory of 1092	1616	PO-2413120.exe	40
PID 1616 wrote to memory of 1092	1616	PO-2413120.exe	40
PID 1616 wrote to memory of 1092	1616	PO-2413120.exe	40
PID 1616 wrote to memory of 1092	1616	PO-2413120.exe	40
PID 1616 wrote to memory of 1796	1616	PO-2413120.exe	42
PID 1616 wrote to memory of 1796	1616	PO-2413120.exe	42
PID 1616 wrote to memory of 1796	1616	PO-2413120.exe	42
PID 1616 wrote to memory of 1796	1616	PO-2413120.exe	42
PID 1616 wrote to memory of 1796	1616	PO-2413120.exe	42
PID 1616 wrote to memory of 1760	1616	PO-2413120.exe	41
PID 1616 wrote to memory of 1760	1616	PO-2413120.exe	41
PID 1616 wrote to memory of 1760	1616	PO-2413120.exe	41
PID 1616 wrote to memory of 1760	1616	PO-2413120.exe	41
PID 1616 wrote to memory of 1760	1616	PO-2413120.exe	41

C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
"C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YOelrcqG.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2168
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YOelrcqG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5679.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2480
- C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
  "C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
    C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\cxzmzrshci"
    3⤵
    PID:1192
- - C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
    C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\cxzmzrshci"
    3⤵
    PID:2532
- - C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
    C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\cxzmzrshci"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1092
- - C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
    C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\xtjqtcncmyfdnaxb"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1760
- - C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe
    C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\nrexsjdiqqnyl"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:1796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

cxzmzrshci

Path C:\Users\Admin\AppData\Local\Temp\cxzmzrshci
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

Submit Download

tmp5679.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp5679.tmp
Size 1KB
SHA256 59f240d8d6eddcf19fd0d645a0c34c3e4db348528230f9af98cf892d5fa9c595
MD5 e31d86520a941ec37ed118d0a6e539d7
SHA1 a08e18c55c5df86a02bcbf7fee0d05bbb0cb45e9
SHA512 e5412e6f04d01a979457f1ab60e777e149306169b52879543996b55c5feea700efd3dcea7423afc9d3e1571647180b94c8b2d9280b44f207fe7b55d434141706
MD5 SHA1 SHA512

Submit Download

memory/1092-78-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1092-52-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1092-59-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1092-61-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1092-56-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1092-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/1616-41-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-48-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-23-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-24-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-25-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/1616-28-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-94-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-93-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-92-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-91-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-90-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/1616-89-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-30-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-32-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-33-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-88-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-34-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-87-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/1616-85-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/1616-86-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/1616-39-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-42-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-80-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/1616-43-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-44-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-46-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-47-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-22-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-14-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-18-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-72-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-73-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-20-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1616-21-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/1760-66-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1760-68-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1760-70-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1760-71-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/1796-57-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/1796-62-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/1796-65-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/1796-84-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/2168-49-0x000000006E4A0000-0x000000006EA4B000-memory.dmp

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memory/2168-38-0x0000000001BF0000-0x0000000001C30000-memory.dmp

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memory/2168-35-0x000000006E4A0000-0x000000006EA4B000-memory.dmp

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memory/2168-36-0x0000000001BF0000-0x0000000001C30000-memory.dmp

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memory/2168-37-0x0000000001BF0000-0x0000000001C30000-memory.dmp

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memory/2448-1-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2448-2-0x0000000000840000-0x0000000000880000-memory.dmp

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memory/2448-3-0x00000000005C0000-0x00000000005DC000-memory.dmp

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memory/2448-0-0x0000000001050000-0x000000000114C000-memory.dmp

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memory/2448-31-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2448-8-0x0000000000840000-0x0000000000880000-memory.dmp

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memory/2448-7-0x0000000073F70000-0x000000007465E000-memory.dmp

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memory/2448-6-0x0000000005400000-0x00000000054C0000-memory.dmp

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memory/2448-5-0x0000000000550000-0x0000000000564000-memory.dmp

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memory/2448-4-0x0000000000530000-0x000000000053E000-memory.dmp

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