remcos | 5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee

Analysis

max time kernel
150s
max time network
140s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/10/2022, 11:39

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General

Target
5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
Size 1.3MB
Sample221007-nr99wsccg3
SHA256 5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee
MD5 2eb993eae521117abeb184195490b57a
SHA1 7114649dc2116ff3ca020c05440464738c1ae13b
SHA512 c29f10d3317c3f6fa06df0d30a0c3e2272068fe9b5860411d909b090d69211b1bae0d79a5bd77a73844ba075a73cb6c604d06c5e28e2b144baa00f7e00f9f2f0
SSDEEP 24576:Sl1XSjildH84qAc/8jAx6SgXIWA8KB4iEkz/K3h2:S/NH84I/8jA1geB4R2g
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos new rem stub collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

valvesco.duckdns.org:5050

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-48V73L
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/872-85-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView
behavioral1/memory/872-89-0x0000000000400000-0x0000000000457000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1408-86-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/1408-87-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 5 IoCs

resource	yara_rule
behavioral1/memory/2012-83-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/872-85-0x0000000000400000-0x0000000000457000-memory.dmp	Nirsoft
behavioral1/memory/1408-86-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1408-87-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/872-89-0x0000000000400000-0x0000000000457000-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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1684 set thread context of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1136 set thread context of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 set thread context of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 set thread context of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1408	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1408	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
Token: SeDebugPrivilege	2012	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1684 wrote to memory of 1136	1684	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	27
PID 1136 wrote to memory of 888	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	29
PID 1136 wrote to memory of 888	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	29
PID 1136 wrote to memory of 888	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	29
PID 1136 wrote to memory of 888	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	29
PID 1136 wrote to memory of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 wrote to memory of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 wrote to memory of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 wrote to memory of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 wrote to memory of 1408	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	30
PID 1136 wrote to memory of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 wrote to memory of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 wrote to memory of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 wrote to memory of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 wrote to memory of 872	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	31
PID 1136 wrote to memory of 1964	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	34
PID 1136 wrote to memory of 1964	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	34
PID 1136 wrote to memory of 1964	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	34
PID 1136 wrote to memory of 1964	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	34
PID 1136 wrote to memory of 1996	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	32
PID 1136 wrote to memory of 1996	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	32
PID 1136 wrote to memory of 1996	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	32
PID 1136 wrote to memory of 1996	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	32
PID 1136 wrote to memory of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33
PID 1136 wrote to memory of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33
PID 1136 wrote to memory of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33
PID 1136 wrote to memory of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33
PID 1136 wrote to memory of 2012	1136	5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe	33

C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
"C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
  "C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1136
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\zdcaqsv"
    3⤵
    PID:888
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\zdcaqsv"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1408
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\kxhsrlgoxdn"
    3⤵
    - Accesses Microsoft Outlook accounts
    PID:872
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\manlrdrqllfhyw"
    3⤵
    PID:1996
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\manlrdrqllfhyw"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:2012
- - C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe
    C:\Users\Admin\AppData\Local\Temp\5542dd26db06cbc6b03f1323db7ff6792a69bcf3dcd6a6c978b91018c7f0a0ee.exe /stext "C:\Users\Admin\AppData\Local\Temp\manlrdrqllfhyw"
    3⤵
    PID:1964

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

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Downloads

zdcaqsv

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

Submit Download

memory/872-89-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/872-85-0x0000000000400000-0x0000000000457000-memory.dmp

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memory/1136-72-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-60-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-61-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-63-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-65-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-66-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-67-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-68-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-70-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-90-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-84-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1136-76-0x0000000000400000-0x000000000047F000-memory.dmp

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memory/1408-86-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1408-87-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1684-58-0x00000000057F0000-0x0000000005902000-memory.dmp

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memory/1684-59-0x0000000005900000-0x00000000059C0000-memory.dmp

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memory/1684-57-0x00000000007A0000-0x00000000007AC000-memory.dmp

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memory/1684-56-0x00000000006E0000-0x00000000006F6000-memory.dmp

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memory/1684-55-0x0000000076401000-0x0000000076403000-memory.dmp

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memory/1684-54-0x0000000000260000-0x00000000003B8000-memory.dmp

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memory/2012-83-0x0000000000400000-0x0000000000424000-memory.dmp

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