remcos | 586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7

General

Target

586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
Size

483KB
MD5

f080e8592d9fd9f4a41c389af2071dc6
SHA1

352f0286ccc2c4cdabe54092239b2f600d34c898
SHA256

586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7
SHA512

35d97a99f74dfa33afe37bcd04fc5f4de6c38eb163b9fa84a20d0b2a507276b7abb27a4abe0caba0ce8c929ef238d554913465509f971d2246dab23c5e66498c
SSDEEP

12288:W5k+Yqaxrh3Nln+N52fIA4jbsvZzGyA4:gY9xrh3NDfIA4jOZ

Score

10^/10

remcos remotehost-16465 collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost-16465

C2

rem.aaahorneswll.com:16465

31.13.224.230:16465

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-80V4Z7
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
Remcos family
remcos

Detected Nirsoft tools 8 IoCs

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

resource	yara_rule
behavioral2/memory/2540-11-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3472-16-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3272-15-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2540-24-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3472-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2540-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3272-12-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3272-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/3472-16-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3472-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3272-15-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3272-12-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3272-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4648 set thread context of 3272	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	93
PID 4648 set thread context of 3472	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	94
PID 4648 set thread context of 2540	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	95

System Location Discovery: System Language Discovery 1 TTPs 4 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	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3272	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
3272	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
2540	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
2540	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
3272	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
3272	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 3272	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	93
PID 4648 wrote to memory of 3272	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	93
PID 4648 wrote to memory of 3272	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	93
PID 4648 wrote to memory of 3472	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	94
PID 4648 wrote to memory of 3472	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	94
PID 4648 wrote to memory of 3472	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	94
PID 4648 wrote to memory of 2540	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	95
PID 4648 wrote to memory of 2540	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	95
PID 4648 wrote to memory of 2540	4648	586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe	95

C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
"C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
  C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe /stext "C:\Users\Admin\AppData\Local\Temp\seopyib"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3272
- C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
  C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe /stext "C:\Users\Admin\AppData\Local\Temp\cgtizbmhas"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:3472
- C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe
  C:\Users\Admin\AppData\Local\Temp\586f683570e1dee78b376a2feeaf0e73f04a668ce82f0fe765eff566b3887af7.exe /stext "C:\Users\Admin\AppData\Local\Temp\nayartxjwayqz"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\seopyib

Filesize
4KB

MD5
ac300aeaf27709e2067788fdd4624843

SHA1
e98edd4615d35de96e30f1a0e13c05b42ee7eb7b

SHA256
d2637d58bb120dc6fefe2f38d6e0d4b308006b8639106a7f9e915fa80b5cc9d9

SHA512
09c46e708f9d253dccd4d943639d9f8126f868ae3dcd951aad12222bb98b5d3814676f878c8391b9bdab5dedcf5b9e9eaeb2ad3ffec57bda875198735586d4df

Download Submit
memory/2540-22-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/2540-11-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2540-24-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2540-8-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2540-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2540-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3272-6-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3272-15-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3272-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3272-12-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3272-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3472-16-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3472-7-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3472-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3472-5-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4648-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4648-29-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4648-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4648-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4648-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4648-32-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4648-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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