remcos | 045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e

General

Target

045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe
Size

487KB
MD5

9a9b5d1a01184054fdc4e031536df66c
SHA1

f2f50296a244b06c9a2c9477a2daecdb69ca23ff
SHA256

045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e
SHA512

575cf25899f6e9ea81bbad5a59a89b3b486c1cf00b305f0d23db1a15b2f07e4981d87aa24bf0e0db5b198739ded73e8efa32751f785e094bc6a5ad96932347eb
SSDEEP

6144:HIlSCa0RPvRz+n8Qr1D0ZGESuHabmvHOE4mCp6qtydBnP+Y4+3sAORZGFX3Xc6eJ:H200OFp+G0imvHn3Cp6qyBP+YdsvZGY

Score

10^/10

remcos friday collection discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Friday

C2

verynicepeopleswithgreatnessgivenmebestthings.ydns.eu:14646

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-64NICU
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 10 IoCs

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

resource	yara_rule
behavioral2/memory/3756-1-0x0000000000400000-0x000000000047D000-memory.dmp	Nirsoft
behavioral2/memory/2712-11-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3756-14-0x0000000000400000-0x000000000047D000-memory.dmp	Nirsoft
behavioral2/memory/2712-16-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2248-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2248-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2712-12-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2248-10-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3756-6-0x0000000000400000-0x000000000047D000-memory.dmp	Nirsoft
behavioral2/memory/3756-21-0x0000000000400000-0x000000000047D000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2712-11-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2712-16-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2712-12-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 4 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3756-1-0x0000000000400000-0x000000000047D000-memory.dmp	WebBrowserPassView
behavioral2/memory/3756-14-0x0000000000400000-0x000000000047D000-memory.dmp	WebBrowserPassView
behavioral2/memory/3756-6-0x0000000000400000-0x000000000047D000-memory.dmp	WebBrowserPassView
behavioral2/memory/3756-21-0x0000000000400000-0x000000000047D000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	recover.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4292 set thread context of 3756	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	93
PID 4292 set thread context of 2712	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	94
PID 4292 set thread context of 2248	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.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	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	recover.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	recover.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	recover.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2248	recover.exe
2248	recover.exe
3756	recover.exe
3756	recover.exe
3756	recover.exe
3756	recover.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe
4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe
4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	recover.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 3756	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	93
PID 4292 wrote to memory of 3756	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	93
PID 4292 wrote to memory of 3756	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	93
PID 4292 wrote to memory of 3756	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	93
PID 4292 wrote to memory of 2712	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	94
PID 4292 wrote to memory of 2712	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	94
PID 4292 wrote to memory of 2712	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	94
PID 4292 wrote to memory of 2712	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	94
PID 4292 wrote to memory of 2248	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	95
PID 4292 wrote to memory of 2248	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	95
PID 4292 wrote to memory of 2248	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	95
PID 4292 wrote to memory of 2248	4292	045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe	95

C:\Users\Admin\AppData\Local\Temp\045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe
"C:\Users\Admin\AppData\Local\Temp\045da9a0bef64799efa48cc181a4689503a203c5721261632fc55a4f3889a89e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4292
- C:\Windows\SysWOW64\recover.exe
  C:\Windows\SysWOW64\recover.exe /stext "C:\Users\Admin\AppData\Local\Temp\ropscihokeyirnc"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3756
- C:\Windows\SysWOW64\recover.exe
  C:\Windows\SysWOW64\recover.exe /stext "C:\Users\Admin\AppData\Local\Temp\biuddbspgmqvtbqxxr"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:2712
- C:\Windows\SysWOW64\recover.exe
  C:\Windows\SysWOW64\recover.exe /stext "C:\Users\Admin\AppData\Local\Temp\lkhvdldjuuiaehmbhcjrh"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2248

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
4KB

MD5
aa80de3fdf1fc5603bedd65804fb788e

SHA1
9bf821e274684f230f8807d876c630bca5407469

SHA256
0094ea07acb828af0c432812281e87f792cc09e7185c02e684a84e87da8bcd43

SHA512
f516ee1f922ed00b0d7d1bce1ffa0b57956cf5e97314c7706ad07411d49f1c35b92c3d08350c5f0ceca4d8777fd7bdbbb191e37b4942d678e99cc2dd41b935b4

Download Submit
memory/2248-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2248-7-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2248-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2248-10-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2248-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2712-16-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2712-5-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2712-12-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2712-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2712-11-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3756-21-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/3756-6-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/3756-1-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/3756-14-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/4292-23-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-29-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4292-28-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4292-27-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-26-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4292-30-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/4292-31-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download

Analysis

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