remcos | fe90e7a7d24d0a6185c652cd88dabd4126000d71d5b1009c8b6aa6ab5eeb6ebd

General

Target

ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
Size

483KB
MD5

dfed304d49603949b72a9840e46b4cab
SHA1

f872be1c08a60df4a4d2ae7e4ef9d6ef30b5e308
SHA256

fe90e7a7d24d0a6185c652cd88dabd4126000d71d5b1009c8b6aa6ab5eeb6ebd
SHA512

80cd04e477b4295f46094a3fd71a9c29647c1fa4429a353b829e9615394d23047ddf6826d5b74672168651b3aa4ccd5ea7faead8ea591c5639276063895d58de
SSDEEP

6144:mXIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZDAXYcNW5Gv:mX7tPMK8ctGe4Dzl4h2QnuPs/ZDPcv

Score

10^/10

remcos remotehost collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:46517

127.0.0.1:55767

mypersonrem.duckdns.org:46517

mypersonrem.duckdns.org:55767

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-6IQ6YR
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

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2096-25-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2096-17-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 4 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2372-26-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2372-23-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2372-24-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2372-32-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

resource	yara_rule
behavioral2/memory/2372-26-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2096-25-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2372-23-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1180-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2372-24-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2096-17-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1180-16-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2372-32-0x0000000000400000-0x0000000000478000-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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4356 set thread context of 2372	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	98
PID 4356 set thread context of 2096	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	99
PID 4356 set thread context of 1180	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	100

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1180	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
1180	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
2372	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
2372	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
2372	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
2372	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1180	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4356 wrote to memory of 2372	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	98
PID 4356 wrote to memory of 2372	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	98
PID 4356 wrote to memory of 2372	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	98
PID 4356 wrote to memory of 2096	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	99
PID 4356 wrote to memory of 2096	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	99
PID 4356 wrote to memory of 2096	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	99
PID 4356 wrote to memory of 1180	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	100
PID 4356 wrote to memory of 1180	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	100
PID 4356 wrote to memory of 1180	4356	ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe	100

C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
"C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4356
- C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
  C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe /stext "C:\Users\Admin\AppData\Local\Temp\ocmjbdcnwmvccbyxwklizzegsayrtfiqc"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2372
- C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
  C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe /stext "C:\Users\Admin\AppData\Local\Temp\yertb"
  2⤵
  - Accesses Microsoft Outlook accounts
  PID:2096
- C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe
  C:\Users\Admin\AppData\Local\Temp\ce780b54c89a5fe2c0fe7fa6ff246b00ca4e15ee84b80c4d6730f30f345912ed_dump.exe /stext "C:\Users\Admin\AppData\Local\Temp\jywmcoyi"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
89d5e21e437c6a26d4ab6e4a55e62478

SHA1
12827da14ff26fa7acaa289bcd4efe9b3f7d9aeb

SHA256
7cb1811a67a2fd57bf280856c0095c66e01c8f65559d6590e71615c96d2b01dc

SHA512
81a994aaf653c2538ed9f5b60d0888aed00b93118d990b4a1346a97c7b57438afb12f296aeef98affd8a3023dd4617e99b3ea9810c4f70d6bf12cdad0f12b2ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\ocmjbdcnwmvccbyxwklizzegsayrtfiqc

Filesize
4KB

MD5
25a7e8d624c2bfdb2facdc50a1d9b965

SHA1
bbf90e7e78dcba692d6a35716d72cd1affc8cf9c

SHA256
880d0a92fcd2d68631b413e0cc98d71fc68337abb19f59901c075e058c694b47

SHA512
35e57b1fd68fd64c325d179323c3383c39cb00e37b42480c0962517eb8ffdffd5d3a95b77122161f651e45ab2fee4a8e5c3f604bd80351a2680f087ea2b9517f

Download Submit
memory/1180-16-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1180-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1180-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1180-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2096-13-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2096-25-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2096-9-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2096-17-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2372-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-18-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-26-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-23-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-32-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2372-8-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4356-35-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4356-39-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4356-38-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4356-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4356-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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