remcos | 201676cf65cb747e532277d504a1bd958465b6419e2eaf27d0ced7aca1e07320

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 17:07

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General

Target
0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
Size 483KB
Sample240522-vm7rjaaa6v
SHA256 0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5
MD5 f6118a965e44ee55e708edf7adcdc1df
SHA1 d5ed640efe39c52ed9a08841837654979f38b384
SHA512 7aca0810ffda2d45c44186f8d75e19b446e475879123b46d97ec6fa2fd302b3690d5e0f56c9d5ae8b13a4023f9a92bf4b58c1493f3890b8d302a15a8db0caacf
SSDEEP 6144:8XIktXfM8Lv86r9uVWAa2je4Z5zl4hgDHQQs4NTQjoHFsAOZZsAX4cNA5Gv:8X7tPMK8ctGe4Dzl4h2QnuPs/ZsBcv
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos zynova collection rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

ZYNOVA

remchukwugixiemu4.duckdns.org:57844
remchukwugixiemu4.duckdns.org:57846
remchukwugix231fgh.duckdns.org:57844
remchukwugix231fgh.duckdns.org:57846

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
true
install_flag
false
keylog_crypt
false
keylog_file
lpaowtrts.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
akpleoeurs-QPYUMO
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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/3680-23-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/3680-24-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/3624-13-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3624-14-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/3624-27-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 8 IoCs

resource	yara_rule
behavioral2/memory/3624-13-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3912-16-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3912-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3624-14-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/3912-11-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/3680-23-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3680-24-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/3624-27-0x0000000000400000-0x0000000000478000-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	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3444 set thread context of 3624	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	88
PID 3444 set thread context of 3680	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	89
PID 3444 set thread context of 3912	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	90

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3624	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3624	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3912	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3912	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3624	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3624	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3912	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 3624	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	88
PID 3444 wrote to memory of 3624	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	88
PID 3444 wrote to memory of 3624	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	88
PID 3444 wrote to memory of 3680	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	89
PID 3444 wrote to memory of 3680	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	89
PID 3444 wrote to memory of 3680	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	89
PID 3444 wrote to memory of 3912	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	90
PID 3444 wrote to memory of 3912	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	90
PID 3444 wrote to memory of 3912	3444	0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe	90

C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
"C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
  C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe /stext "C:\Users\Admin\AppData\Local\Temp\tahxoiciibb"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3624
- C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
  C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe /stext "C:\Users\Admin\AppData\Local\Temp\vunhpbmkwkttrx"
  2⤵
  - Accesses Microsoft Outlook accounts
  PID:3680
- C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe
  C:\Users\Admin\AppData\Local\Temp\0af76f2897158bf752b5ee258053215a6de198e8910458c02282c2d4d284add5.exe /stext "C:\Users\Admin\AppData\Local\Temp\fosaqtxekslfumkjnu"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3912

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tahxoiciibb

Path C:\Users\Admin\AppData\Local\Temp\tahxoiciibb
Size 4KB
SHA256 880d0a92fcd2d68631b413e0cc98d71fc68337abb19f59901c075e058c694b47
MD5 25a7e8d624c2bfdb2facdc50a1d9b965
SHA1 bbf90e7e78dcba692d6a35716d72cd1affc8cf9c
SHA512 35e57b1fd68fd64c325d179323c3383c39cb00e37b42480c0962517eb8ffdffd5d3a95b77122161f651e45ab2fee4a8e5c3f604bd80351a2680f087ea2b9517f
SSDEEP 48:wvvv0KxfvvcKxfdvv0KxBvv0Kxakvv0K7:mvnxvPp1vnPvnbvn7
MD5 SHA1 SHA512 SSDEEP

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memory/3444-36-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3444-35-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3444-34-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/3444-31-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/3444-33-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/3624-7-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/3624-27-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/3624-13-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/3624-3-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/3624-14-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/3680-15-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3680-12-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3680-23-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3680-24-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3680-5-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/3912-22-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3912-6-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3912-9-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3912-11-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/3912-20-0x0000000000430000-0x00000000004F9000-memory.dmp

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memory/3912-16-0x0000000000400000-0x0000000000424000-memory.dmp

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