remcos | fe6a93368c9da83d864b3f37fba5c8c01302a3d909779cb3bd6dfaed8b430fb5

Analysis

max time kernel
167s
max time network
166s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
11/08/2022, 10:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
Size 1.2MB
Sample220811-mt2j4aged7
SHA256 fe6a93368c9da83d864b3f37fba5c8c01302a3d909779cb3bd6dfaed8b430fb5
MD5 b3b01ccf1424e73f13a15ddf6d5b2ea7
SHA1 1eb180d3d7d4211a0b4535d38edf47fabf49c60b
SHA512 9821c6a2e0a25af89c2c69d49eceb9c4df883900db97abe987f39f866232aa355329d5575d5fd3c946fd25e8fd45207d1382146fbb2e00f6294b8467d5805d98
MD5 SHA1 SHA512

Score

10^/10

remcos remotehost collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

mail.deiomino.icu:45547

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-93Q5F4
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 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/1880-87-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/1880-91-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1944-88-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1944-89-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 5 IoCs

resource	yara_rule
behavioral1/memory/840-86-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/1880-87-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/1944-88-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1944-89-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1880-91-0x0000000000400000-0x0000000000457000-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
T1081

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1768 set thread context of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1928 set thread context of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 set thread context of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 set thread context of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1944	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
1944	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1768 wrote to memory of 1928	1768	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	27
PID 1928 wrote to memory of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 wrote to memory of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 wrote to memory of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 wrote to memory of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 wrote to memory of 1944	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	29
PID 1928 wrote to memory of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 wrote to memory of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 wrote to memory of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 wrote to memory of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 wrote to memory of 1880	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	30
PID 1928 wrote to memory of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31
PID 1928 wrote to memory of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31
PID 1928 wrote to memory of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31
PID 1928 wrote to memory of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31
PID 1928 wrote to memory of 840	1928	b3b01ccf1424e73f13a15ddf6d5b2ea7.exe	31

C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
"C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
  "C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1928
- - C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
    C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe /stext "C:\Users\Admin\AppData\Local\Temp\ndjltnsskisuieiyseps"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1944
- - C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
    C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe /stext "C:\Users\Admin\AppData\Local\Temp\qfpwugcmyqkzksecbpcmwcqh"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:1880
- - C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe
    C:\Users\Admin\AppData\Local\Temp\b3b01ccf1424e73f13a15ddf6d5b2ea7.exe /stext "C:\Users\Admin\AppData\Local\Temp\azuonynnuycmuysgszonzplqgnw"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:840

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

ndjltnsskisuieiyseps

Path C:\Users\Admin\AppData\Local\Temp\ndjltnsskisuieiyseps
Size 2B
SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
MD5 f3b25701fe362ec84616a93a45ce9998
SHA1 d62636d8caec13f04e28442a0a6fa1afeb024bbb
SHA512 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84
MD5 SHA1 SHA512

Submit Download

memory/840-86-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/1768-57-0x0000000000BD5000-0x0000000000BE6000-memory.dmp

Download

memory/1768-58-0x0000000000BA0000-0x0000000000BAC000-memory.dmp

Download

memory/1768-59-0x0000000007FB0000-0x0000000008068000-memory.dmp

Download

memory/1768-60-0x0000000005E90000-0x0000000005F0C000-memory.dmp

Download

memory/1768-54-0x0000000001130000-0x0000000001266000-memory.dmp

Download

memory/1768-77-0x0000000000BD5000-0x0000000000BE6000-memory.dmp

Download

memory/1768-56-0x0000000000840000-0x0000000000864000-memory.dmp

Download

memory/1768-55-0x0000000075871000-0x0000000075873000-memory.dmp

Download

memory/1880-91-0x0000000000400000-0x0000000000457000-memory.dmp

Download

memory/1880-87-0x0000000000400000-0x0000000000457000-memory.dmp

Download

memory/1928-61-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-69-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-71-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-78-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-79-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-92-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-73-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-68-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-67-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-66-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-62-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1928-64-0x0000000000400000-0x000000000047E000-memory.dmp

Download

memory/1944-89-0x0000000000400000-0x0000000000478000-memory.dmp

Download

memory/1944-88-0x0000000000400000-0x0000000000478000-memory.dmp

Download