remcos | 8bbd6b6b3b575d119502eeb547ba8a17243bddb103f12b5e052eada6e5dec27e

General

Target

PO 16395.exe
Size

17KB
MD5

a7c4cbcc1aaeb9918d38822d4d382349
SHA1

7069859f77406fa4b71de748665cb5708677941d
SHA256

8bbd6b6b3b575d119502eeb547ba8a17243bddb103f12b5e052eada6e5dec27e
SHA512

77b7718e853661b61c9ec279e8c15e251636c27b0f4a49c9d0f7703b04d8a1b484ee52fbed8e8ab81098b4a968bfbc059c794d4691925d5b6511b7a0ae492eb5
SSDEEP

384:nJHvMswZji7RCwLn+JUL+Vg2eRBwdmZlZ:hvMTG7AqKAR6dMZ

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/756-152-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

Processes:

resource	yara_rule
behavioral2/memory/1196-154-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1196-155-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1820-153-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/756-152-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral2/memory/1196-154-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1196-155-0x0000000000400000-0x0000000000478000-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 16395.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	PO 16395.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 16395.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	PO 16395.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO 16395.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rkmbn = "\"C:\\Users\\Admin\\AppData\\Roaming\\Qbqxanaft\\Rkmbn.exe\""	PO 16395.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PO 16395.exePO 16395.exe

description	pid	process	target process
PID 4860 set thread context of 5112	4860	PO 16395.exe	PO 16395.exe
PID 5112 set thread context of 1196	5112	PO 16395.exe	PO 16395.exe
PID 5112 set thread context of 756	5112	PO 16395.exe	PO 16395.exe
PID 5112 set thread context of 1820	5112	PO 16395.exe	PO 16395.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 16395.exePO 16395.exe

pid process

5004 powershell.exe
5004 powershell.exe
1820 PO 16395.exe
1820 PO 16395.exe
1196 PO 16395.exe
1196 PO 16395.exe
1196 PO 16395.exe
1196 PO 16395.exe
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

PO 16395.exe

pid process

5112 PO 16395.exe
5112 PO 16395.exe
5112 PO 16395.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO 16395.exepowershell.exePO 16395.exe

description pid process

Token: SeDebugPrivilege 4860 PO 16395.exe
Token: SeDebugPrivilege 5004 powershell.exe
Token: SeDebugPrivilege 1820 PO 16395.exe

pid	process
5004	powershell.exe
5004	powershell.exe
1820	PO 16395.exe
1820	PO 16395.exe
1196	PO 16395.exe
1196	PO 16395.exe
1196	PO 16395.exe
1196	PO 16395.exe

pid	process
5112	PO 16395.exe
5112	PO 16395.exe
5112	PO 16395.exe

description	pid	process
Token: SeDebugPrivilege	4860	PO 16395.exe
Token: SeDebugPrivilege	5004	powershell.exe
Token: SeDebugPrivilege	1820	PO 16395.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

PO 16395.exePO 16395.exe

description	pid	process	target process
PID 4860 wrote to memory of 5004	4860	PO 16395.exe	powershell.exe
PID 4860 wrote to memory of 5004	4860	PO 16395.exe	powershell.exe
PID 4860 wrote to memory of 5004	4860	PO 16395.exe	powershell.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 4860 wrote to memory of 5112	4860	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1196	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1196	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1196	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1196	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 756	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 756	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 756	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 756	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1820	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1820	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1820	5112	PO 16395.exe	PO 16395.exe
PID 5112 wrote to memory of 1820	5112	PO 16395.exe	PO 16395.exe

C:\Users\Admin\AppData\Local\Temp\PO 16395.exe
"C:\Users\Admin\AppData\Local\Temp\PO 16395.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:4860

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANAA4AA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5004

C:\Users\Admin\AppData\Local\Temp\PO 16395.exe
"C:\Users\Admin\AppData\Local\Temp\PO 16395.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5112

C:\Users\Admin\AppData\Local\Temp\PO 16395.exe
"C:\Users\Admin\AppData\Local\Temp\PO 16395.exe" /stext "C:\Users\Admin\AppData\Local\Temp\jnzzdajkkgdnesoddmhcfral"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1196

C:\Users\Admin\AppData\Local\Temp\PO 16395.exe
"C:\Users\Admin\AppData\Local\Temp\PO 16395.exe" /stext "C:\Users\Admin\AppData\Local\Temp\uqesesumyowsoychuxbdieuclvh"
3⤵
- Accesses Microsoft Outlook accounts
PID:756

C:\Users\Admin\AppData\Local\Temp\PO 16395.exe
"C:\Users\Admin\AppData\Local\Temp\PO 16395.exe" /stext "C:\Users\Admin\AppData\Local\Temp\ekjdflffuwoxrezldioxtipllkydjn"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1820

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\jnzzdajkkgdnesoddmhcfral
Filesize
4KB

MD5
30177e1276595fd69ea96b692f49d776

SHA1
75769c29031ca1ad8e175dd700c74b5e35c5b0c7

SHA256
76d4066990e2ee2776f733a25ce23e9af545fd6f1a3b5760d603bdc05d9402d5

SHA512
ccdf20174d299de8ec21445faaf4ebe95c04bd7634c9fe138ba54262b754620c2dfd53a5c94b7d53518181d2eab7b5c97d7933d3a66d05220b06aee120893d4b

Download Submit
memory/756-152-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/756-150-0x0000000000000000-mapping.dmp

Download
memory/1196-149-0x0000000000000000-mapping.dmp

Download
memory/1196-155-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1196-154-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1820-153-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1820-151-0x0000000000000000-mapping.dmp

Download
memory/4860-133-0x0000000006500000-0x0000000006522000-memory.dmp

Filesize
136KB

Download
memory/4860-132-0x0000000000D30000-0x0000000000D3A000-memory.dmp

Filesize
40KB

Download
memory/4860-142-0x00000000069F0000-0x0000000006A82000-memory.dmp

Filesize
584KB

Download
memory/4860-143-0x0000000039900000-0x0000000039EA4000-memory.dmp

Filesize
5.6MB

Download
memory/5004-138-0x0000000005FD0000-0x0000000006036000-memory.dmp

Filesize
408KB

Download
memory/5004-136-0x00000000056D0000-0x0000000005CF8000-memory.dmp

Filesize
6.2MB

Download
memory/5004-134-0x0000000000000000-mapping.dmp

Download
memory/5004-135-0x0000000005060000-0x0000000005096000-memory.dmp

Filesize
216KB

Download
memory/5004-137-0x0000000005EF0000-0x0000000005F56000-memory.dmp

Filesize
408KB

Download
memory/5004-139-0x0000000006600000-0x000000000661E000-memory.dmp

Filesize
120KB

Download
memory/5004-141-0x0000000006AE0000-0x0000000006AFA000-memory.dmp

Filesize
104KB

Download
memory/5004-140-0x0000000007C70000-0x00000000082EA000-memory.dmp

Filesize
6.5MB

Download
memory/5112-144-0x0000000000000000-mapping.dmp

Download
memory/5112-148-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5112-145-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5112-147-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5112-146-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5112-157-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads