remcos | 86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8

Analysis

max time kernel
148s
max time network
144s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-08-2024 15:17

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General

Target

86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
Size

928KB
MD5

04d4d4d83e1601d220f83f09ae16cd79
SHA1

4f0a7d8060399a7ae5029690bdee2bf3b2e3e395
SHA256

86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8
SHA512

87747374bd1c72c9d33d2af9e7456617c95e6c100788f16123bf15cb1c6748a13ad1ac9b5a967553fdf668ea226033a741c08f45febc2130a7e50ccabe69333c
SSDEEP

24576:bhdtlx9EP2aKUQ6/FfCH1bGl4rg5YWNexNBpqod:bhdrY+aPQiFgDWcxNzqi

Score

10^/10

remcos aug 26 collection credential_access discovery execution rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

AUG 26

sungito2.ddns.net:6509

154.216.19.222:5532

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-LXAZN2
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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 3 IoCs

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

resource	yara_rule
behavioral1/memory/596-50-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/1540-49-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1808-54-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/596-50-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1540-49-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2824	powershell.exe

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2444 set thread context of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 set thread context of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 set thread context of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2824	powershell.exe
1540	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
1540	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	powershell.exe
Token: SeDebugPrivilege	1808	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2824	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	31
PID 2568 wrote to memory of 2824	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	31
PID 2568 wrote to memory of 2824	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	31
PID 2568 wrote to memory of 2824	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	31
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2568 wrote to memory of 2444	2568	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	33
PID 2444 wrote to memory of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 wrote to memory of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 wrote to memory of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 wrote to memory of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 wrote to memory of 1540	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	34
PID 2444 wrote to memory of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 wrote to memory of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 wrote to memory of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 wrote to memory of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 wrote to memory of 596	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	35
PID 2444 wrote to memory of 600	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	36
PID 2444 wrote to memory of 600	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	36
PID 2444 wrote to memory of 600	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	36
PID 2444 wrote to memory of 600	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	36
PID 2444 wrote to memory of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37
PID 2444 wrote to memory of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37
PID 2444 wrote to memory of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37
PID 2444 wrote to memory of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37
PID 2444 wrote to memory of 1808	2444	86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe	37

C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
"C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2824
- C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
  "C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2444
- - C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\gzyybbvcmemthidj"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1540
- - C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\rbercufwameysosnwkm"
    3⤵
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:596
- - C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\twjbvmqynuwducozgvylvg"
    3⤵
    PID:600
- - C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe
    C:\Users\Admin\AppData\Local\Temp\86b19710e100964d95cfa01201152d4e73f1297f7286207feeb01cdb7e55efc8.exe /stext "C:\Users\Admin\AppData\Local\Temp\twjbvmqynuwducozgvylvg"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:1808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
1a9c8e8e3e64b029793d74b83e15a8e3

SHA1
c1645371c6efaea5713a81e9e39549bab3f2fba9

SHA256
89577fc48f7849ad8d459e5c2e34e4952a23f68209b026f410b2027e5218362d

SHA512
a3ee14e8421abefd4fc175255b32a5daeb13cc02c6128e26ae88e2823db7cc7f0a45fa102e68886693c79a884eb5eb0e281cba8c25359948c57a943c6564e8c5

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/596-48-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/596-50-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/596-46-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1540-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1540-44-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1540-47-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1540-49-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1808-53-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1808-54-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1808-52-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2444-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2444-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2444-61-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2444-65-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2444-64-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2444-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2568-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2568-1-0x0000000000B70000-0x0000000000C5A000-memory.dmp

Filesize
936KB

Download
memory/2568-3-0x0000000000800000-0x0000000000818000-memory.dmp

Filesize
96KB

Download
memory/2568-4-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2568-5-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2568-6-0x0000000004B60000-0x0000000004C20000-memory.dmp

Filesize
768KB

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memory/2568-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

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memory/2568-33-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

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