remcos | 8af0a92b4f923ce464380fb0f5dc8203b4d00211b239e87d814ad44b620d63e7

General

Target

PO_No._ANOP0658.exe
Size

7KB
MD5

bf66440c894e2c3691b58423deb5a96a
SHA1

6a0d775b272c09dd4f7b1b3269d5497aa9e0bbc8
SHA256

8af0a92b4f923ce464380fb0f5dc8203b4d00211b239e87d814ad44b620d63e7
SHA512

989da9407ec44ccca4e3663746cecdb1fd1400cb66b486e4b56a69e6116589be8d1b317f4db5fb9e9c02b728f1d2e173c18ad6c8bd2539bfb8818f615e0db7f8
SSDEEP

96:hM+yDs4I3dsoS3iJA9W2uavvDePHK5GIR6oP959xzNtR:hM+6sR2oS3lE2umbePHK5GIvbpX

Score

10^/10

remcos 50005 collection persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

50005

C2

45.155.165.117:50005

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
jubjutgwfkpjgsh-G1HYQL
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

Processes:

resource	yara_rule
behavioral2/memory/3892-152-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/4580-154-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4580-155-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3892-152-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/5068-153-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4580-154-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/4580-155-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

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

Processes:

PO_No._ANOP0658.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	PO_No._ANOP0658.exe

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
T1081

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

PO_No._ANOP0658.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	PO_No._ANOP0658.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO_No._ANOP0658.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kuriajtopja = "\"C:\\Users\\Admin\\AppData\\Roaming\\Tvoyw\\Kuriajtopja.exe\""	PO_No._ANOP0658.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO_No._ANOP0658.exePO_No._ANOP0658.exe

description	pid	process	target process
PID 4404 set thread context of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 set thread context of 4580	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 set thread context of 3892	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 set thread context of 5068	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exePO_No._ANOP0658.exePO_No._ANOP0658.exe

pid	process
4856	powershell.exe
4856	powershell.exe
4580	PO_No._ANOP0658.exe
4580	PO_No._ANOP0658.exe
5068	PO_No._ANOP0658.exe
5068	PO_No._ANOP0658.exe
4580	PO_No._ANOP0658.exe
4580	PO_No._ANOP0658.exe

Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

PO_No._ANOP0658.exe

pid process

3500 PO_No._ANOP0658.exe
3500 PO_No._ANOP0658.exe
3500 PO_No._ANOP0658.exe

pid	process
3500	PO_No._ANOP0658.exe
3500	PO_No._ANOP0658.exe
3500	PO_No._ANOP0658.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO_No._ANOP0658.exepowershell.exePO_No._ANOP0658.exe

description	pid	process
Token: SeDebugPrivilege	4404	PO_No._ANOP0658.exe
Token: SeDebugPrivilege	4856	powershell.exe
Token: SeDebugPrivilege	5068	PO_No._ANOP0658.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

PO_No._ANOP0658.exePO_No._ANOP0658.exe

description	pid	process	target process
PID 4404 wrote to memory of 4856	4404	PO_No._ANOP0658.exe	powershell.exe
PID 4404 wrote to memory of 4856	4404	PO_No._ANOP0658.exe	powershell.exe
PID 4404 wrote to memory of 4856	4404	PO_No._ANOP0658.exe	powershell.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 4404 wrote to memory of 3500	4404	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 4580	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 4580	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 4580	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 4580	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 3892	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 3892	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 3892	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 3892	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 5068	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 5068	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 5068	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe
PID 3500 wrote to memory of 5068	3500	PO_No._ANOP0658.exe	PO_No._ANOP0658.exe

C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
"C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4404

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAyAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4856

C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3500

C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe /stext "C:\Users\Admin\AppData\Local\Temp\bcoyacvuxqxbnal"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4580

C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe /stext "C:\Users\Admin\AppData\Local\Temp\detjavgwlypnpozsnr"
3⤵
- Accesses Microsoft Outlook accounts
PID:3892

C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe
C:\Users\Admin\AppData\Local\Temp\PO_No._ANOP0658.exe /stext "C:\Users\Admin\AppData\Local\Temp\oyzbbnrqzghszuvwwcpyst"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5068

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\bcoyacvuxqxbnal
Filesize
4KB

MD5
07c14121728256ad56b1ef039a28e4a6

SHA1
0f39e1e02cd5e2b1b22d9e5470757ae13fe96738

SHA256
8d46702077d776b04085cbe5ce2f0e5971595ea4e11b025a215c4379e7fc18f8

SHA512
03d9113095e7b6143c4f99b131462fa451a9c2d7e841461603dace64bd6d525cb63d074384d2b3ff285a7183116f1715138beeb756fced9a6b1ad6fde36d4789

Download Submit
memory/3500-144-0x0000000000000000-mapping.dmp

Download
memory/3500-157-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3500-148-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3500-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3500-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3500-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3892-150-0x0000000000000000-mapping.dmp

Download
memory/3892-152-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/4404-133-0x0000000006A40000-0x0000000006A62000-memory.dmp

Filesize
136KB

Download
memory/4404-142-0x0000000006E20000-0x0000000006EB2000-memory.dmp

Filesize
584KB

Download
memory/4404-143-0x000000003E8D0000-0x000000003EE74000-memory.dmp

Filesize
5.6MB

Download
memory/4404-132-0x0000000000FF0000-0x0000000000FF8000-memory.dmp

Filesize
32KB

Download
memory/4580-149-0x0000000000000000-mapping.dmp

Download
memory/4580-155-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4580-154-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4856-139-0x0000000006000000-0x000000000601E000-memory.dmp

Filesize
120KB

Download
memory/4856-135-0x0000000002A50000-0x0000000002A86000-memory.dmp

Filesize
216KB

Download
memory/4856-136-0x00000000052F0000-0x0000000005918000-memory.dmp

Filesize
6.2MB

Download
memory/4856-137-0x0000000005150000-0x00000000051B6000-memory.dmp

Filesize
408KB

Download
memory/4856-138-0x00000000059D0000-0x0000000005A36000-memory.dmp

Filesize
408KB

Download
memory/4856-140-0x0000000007690000-0x0000000007D0A000-memory.dmp

Filesize
6.5MB

Download
memory/4856-134-0x0000000000000000-mapping.dmp

Download
memory/4856-141-0x00000000064F0000-0x000000000650A000-memory.dmp

Filesize
104KB

Download
memory/5068-151-0x0000000000000000-mapping.dmp

Download
memory/5068-153-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads