remcos | a27680b43e44f22ceacebab92e9564510f67b4a90ffcbc62b0c601f696ad5fc0

Analysis

max time kernel
147s
max time network
144s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08-04-2024 01:58

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General

Target

PURCHASE ORDER 794769-048.exe
Size

892KB
MD5

636a54861ddd167065f294cc76fca7ba
SHA1

7e3eba28bc4b89801c91de5450aa28da5c6ff941
SHA256

8f02ecb26530c0a13b7f00020ebca144fc271fe36a5caaba1f4b3270e8e0023c
SHA512

cde7be19fc7fa841d22521a6c5ad01129ff604b2f91c1c16e0da7d91434cd962af25a39c8ab43c14915536b47d652eb2e55cf0fab5178a9553ab0f8f74833fc4
SSDEEP

24576:GgkHhAVqHxUrlWy05hMud6hHERSIhO0RDP+dB8:I2V+Ur6MIMHERSIQ0RDr

Score

10^/10

remcos remotehost collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

paygateme.net:2286

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-WTDTSU
screenshot_crypt
true
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
1
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

Processes:

resource	yara_rule
behavioral1/memory/1200-73-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/1200-86-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral1/memory/380-62-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/380-63-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/380-82-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/380-62-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/380-63-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1200-73-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2216-76-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2216-77-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/380-82-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1200-86-0x0000000000400000-0x0000000000462000-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

Processes:

PURCHASE ORDER 794769-048.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	PURCHASE ORDER 794769-048.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PURCHASE ORDER 794769-048.exePURCHASE ORDER 794769-048.exe

description	pid	process	target process
PID 2964 set thread context of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 set thread context of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 set thread context of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 set thread context of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe

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

Processes:

schtasks.exe

pid process

2664 schtasks.exe

pid	process
2664	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

PURCHASE ORDER 794769-048.exepowershell.exePURCHASE ORDER 794769-048.exe

pid	process
2964	PURCHASE ORDER 794769-048.exe
2964	PURCHASE ORDER 794769-048.exe
2652	powershell.exe
380	PURCHASE ORDER 794769-048.exe
380	PURCHASE ORDER 794769-048.exe

Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

PURCHASE ORDER 794769-048.exe

pid process

2632 PURCHASE ORDER 794769-048.exe
2632 PURCHASE ORDER 794769-048.exe
2632 PURCHASE ORDER 794769-048.exe

pid	process
2632	PURCHASE ORDER 794769-048.exe
2632	PURCHASE ORDER 794769-048.exe
2632	PURCHASE ORDER 794769-048.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PURCHASE ORDER 794769-048.exepowershell.exePURCHASE ORDER 794769-048.exe

description	pid	process
Token: SeDebugPrivilege	2964	PURCHASE ORDER 794769-048.exe
Token: SeDebugPrivilege	2652	powershell.exe
Token: SeDebugPrivilege	2216	PURCHASE ORDER 794769-048.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PURCHASE ORDER 794769-048.exe

pid process

2632 PURCHASE ORDER 794769-048.exe

pid	process
2632	PURCHASE ORDER 794769-048.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

PURCHASE ORDER 794769-048.exePURCHASE ORDER 794769-048.exe

description	pid	process	target process
PID 2964 wrote to memory of 2652	2964	PURCHASE ORDER 794769-048.exe	powershell.exe
PID 2964 wrote to memory of 2652	2964	PURCHASE ORDER 794769-048.exe	powershell.exe
PID 2964 wrote to memory of 2652	2964	PURCHASE ORDER 794769-048.exe	powershell.exe
PID 2964 wrote to memory of 2652	2964	PURCHASE ORDER 794769-048.exe	powershell.exe
PID 2964 wrote to memory of 2664	2964	PURCHASE ORDER 794769-048.exe	schtasks.exe
PID 2964 wrote to memory of 2664	2964	PURCHASE ORDER 794769-048.exe	schtasks.exe
PID 2964 wrote to memory of 2664	2964	PURCHASE ORDER 794769-048.exe	schtasks.exe
PID 2964 wrote to memory of 2664	2964	PURCHASE ORDER 794769-048.exe	schtasks.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2964 wrote to memory of 2632	2964	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 380	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 1200	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe
PID 2632 wrote to memory of 2216	2632	PURCHASE ORDER 794769-048.exe	PURCHASE ORDER 794769-048.exe

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tzRVJJzEigd.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2652

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tzRVJJzEigd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4856.tmp"
2⤵
- Creates scheduled task(s)
PID:2664

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2632

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ffigupzukqulptdkutpytkoy"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:380

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe" /stext "C:\Users\Admin\AppData\Local\Temp\phoyvzkogymyzzrodejaeoipeibl"
3⤵
- Accesses Microsoft Outlook accounts
PID:1200

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER 794769-048.exe" /stext "C:\Users\Admin\AppData\Local\Temp\rbtrosvpugecbfnsmpwbhbvyfptuwju"
3⤵
- Suspicious use of AdjustPrivilegeToken
PID:2216

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

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
974680b4001ffde50be811332151c5a0

SHA1
2383a1cc820f5b0bd80801d8c5912a5b0932912d

SHA256
095d6e84f84303f87e9cb8ce67e84cf4a6b9fc0b08061033add60342f66eb04c

SHA512
88ff570bcea774bf58885bdc2a3180046b30e6b8c80e339a1d9cda3e514c2877d34049cd3ad40186b821eba1b9f936503162fe189f4b44b1079cfe8b096a9b7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\ffigupzukqulptdkutpytkoy
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4856.tmp
Filesize
1KB

MD5
1732745b22113eeb068065d88d36dd5d

SHA1
146e4c7b2b61a9f537a5efbcaf480551c16da0b9

SHA256
fb87891000dd4b539a61191949298290868e4f6cfdef000c3cf1f287cc0fa9fc

SHA512
856f221f8ac822e02164889f0681f2d5c80106a14262f1e27cb9c0cda94d26a2cff7bd5091da1ef136e82acdb3f03b3461fe8e553fbb44cb041b6fcf00be2c14

Download Submit
memory/380-63-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/380-58-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/380-82-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/380-61-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/380-62-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/380-56-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1200-65-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1200-86-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1200-73-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1200-71-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1200-69-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2216-76-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2216-70-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2216-74-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2216-77-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2632-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-101-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2632-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2632-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-92-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2632-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2632-90-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2632-87-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2632-91-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2652-48-0x0000000074090000-0x000000007463B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-44-0x0000000074090000-0x000000007463B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-43-0x0000000074090000-0x000000007463B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-46-0x0000000002D00000-0x0000000002D40000-memory.dmp

Filesize
256KB

Download
memory/2652-45-0x0000000002D00000-0x0000000002D40000-memory.dmp

Filesize
256KB

Download
memory/2652-47-0x0000000002D00000-0x0000000002D40000-memory.dmp

Filesize
256KB

Download
memory/2964-5-0x0000000005400000-0x00000000054C0000-memory.dmp

Filesize
768KB

Download
memory/2964-0-0x0000000000D40000-0x0000000000E26000-memory.dmp

Filesize
920KB

Download
memory/2964-1-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/2964-31-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/2964-2-0x0000000004D60000-0x0000000004DA0000-memory.dmp

Filesize
256KB

Download
memory/2964-4-0x00000000003F0000-0x00000000003FC000-memory.dmp

Filesize
48KB

Download
memory/2964-3-0x00000000003D0000-0x00000000003E0000-memory.dmp

Filesize
64KB

Download