remcos | 9b9ba6e3df79c2acd5ecdb46d3fb5f4828bcad17b899841fda48bef82f7ab1a1

Analysis

max time kernel
148s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 05:44

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General

Target
ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe
Size 992KB
Sample240710-ge513ssamd
SHA256 9b9ba6e3df79c2acd5ecdb46d3fb5f4828bcad17b899841fda48bef82f7ab1a1
MD5 ef2d9336dfa5c1f0ef89610650e1230e
SHA1 75168fd533fc98070f38502af6533089e998b254
SHA512 3e01ff1b5a49eeb19fc7f39588593dced8f408dc4287099e11fa59adf8efe9e6a8ca9f93616242010f3169c28e1898b8ce8b03ea96799b9209a8109dac5df72f
SSDEEP 24576:ifECyYTr5FrHZ4VodWZ0ySu/SkqMln85ieJPm8WByRmMo:gyYxR6VL0yd/62ojJuUA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost collection persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

104.250.180.178:7902

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
Adobe.exe
copy_folder
Adobe
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Adobe-OTOIRK
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 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4136-57-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1776-56-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Nirsoft 3 IoCs

resource	yara_rule
behavioral2/memory/4136-57-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1776-56-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/112-55-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe

Executes dropped EXE 7 IoCs

pid	Process
216	Adobe.exe
2668	Adobe.exe
3620	Adobe.exe
1776	Adobe.exe
3156	Adobe.exe
4136	Adobe.exe
112	Adobe.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-1-5-21-3419463127-3903270268-2580331543-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Adobe.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	Adobe.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 216 set thread context of 2668	216	Adobe.exe	87
PID 2668 set thread context of 1776	2668	Adobe.exe	89
PID 2668 set thread context of 4136	2668	Adobe.exe	91
PID 2668 set thread context of 112	2668	Adobe.exe	92

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1776	Adobe.exe
1776	Adobe.exe
112	Adobe.exe
112	Adobe.exe
1776	Adobe.exe
1776	Adobe.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2668	Adobe.exe
2668	Adobe.exe
2668	Adobe.exe
2668	Adobe.exe
2668	Adobe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	112	Adobe.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 1836 wrote to memory of 2520	1836	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	85
PID 2520 wrote to memory of 216	2520	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	86
PID 2520 wrote to memory of 216	2520	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	86
PID 2520 wrote to memory of 216	2520	ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe	86
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 216 wrote to memory of 2668	216	Adobe.exe	87
PID 2668 wrote to memory of 3620	2668	Adobe.exe	88
PID 2668 wrote to memory of 3620	2668	Adobe.exe	88
PID 2668 wrote to memory of 3620	2668	Adobe.exe	88
PID 2668 wrote to memory of 1776	2668	Adobe.exe	89
PID 2668 wrote to memory of 1776	2668	Adobe.exe	89
PID 2668 wrote to memory of 1776	2668	Adobe.exe	89
PID 2668 wrote to memory of 1776	2668	Adobe.exe	89
PID 2668 wrote to memory of 3156	2668	Adobe.exe	90
PID 2668 wrote to memory of 3156	2668	Adobe.exe	90
PID 2668 wrote to memory of 3156	2668	Adobe.exe	90
PID 2668 wrote to memory of 4136	2668	Adobe.exe	91
PID 2668 wrote to memory of 4136	2668	Adobe.exe	91
PID 2668 wrote to memory of 4136	2668	Adobe.exe	91
PID 2668 wrote to memory of 4136	2668	Adobe.exe	91
PID 2668 wrote to memory of 112	2668	Adobe.exe	92
PID 2668 wrote to memory of 112	2668	Adobe.exe	92
PID 2668 wrote to memory of 112	2668	Adobe.exe	92
PID 2668 wrote to memory of 112	2668	Adobe.exe	92

C:\Users\Admin\AppData\Local\Temp\ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe
"C:\Users\Admin\AppData\Local\Temp\ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Users\Admin\AppData\Local\Temp\ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\ISF 10+2 Form+VGM - MX-M354N_20240709_134303.scr.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2520
- - C:\ProgramData\Adobe\Adobe.exe
    "C:\ProgramData\Adobe\Adobe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:216
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:2668
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\hylhbnuzkrdbmzlwrrdvcgygxpugpn"
        5⤵
        Executes dropped EXE
        
        PID:3620
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\hylhbnuzkrdbmzlwrrdvcgygxpugpn"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        
        PID:1776
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\jsrrcffsyavgwnhaacqpftlxgvlpiylpuu"
        5⤵
        Executes dropped EXE
        
        PID:3156
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\jsrrcffsyavgwnhaacqpftlxgvlpiylpuu"
        5⤵
        Executes dropped EXE
        Accesses Microsoft Outlook accounts
        
        PID:4136
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\tuwkdy"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Adobe.exe

Path C:\ProgramData\Adobe\Adobe.exe
Size 992KB
SHA256 9b9ba6e3df79c2acd5ecdb46d3fb5f4828bcad17b899841fda48bef82f7ab1a1
MD5 ef2d9336dfa5c1f0ef89610650e1230e
SHA1 75168fd533fc98070f38502af6533089e998b254
SHA512 3e01ff1b5a49eeb19fc7f39588593dced8f408dc4287099e11fa59adf8efe9e6a8ca9f93616242010f3169c28e1898b8ce8b03ea96799b9209a8109dac5df72f
SSDEEP 24576:ifECyYTr5FrHZ4VodWZ0ySu/SkqMln85ieJPm8WByRmMo:gyYxR6VL0yd/62ojJuUA
MD5 SHA1 SHA512 SSDEEP

Submit Download

hylhbnuzkrdbmzlwrrdvcgygxpugpn

Path C:\Users\Admin\AppData\Local\Temp\hylhbnuzkrdbmzlwrrdvcgygxpugpn
Size 4KB
SHA256 9e347aa1a363532c72d7728abe1afdc48b9418fae8cbf8bcbc50c9c22dfefa57
MD5 60e30555becdb968406edb87fff512ef
SHA1 65551417f6371c40e6d5dab38fe87ab634f9446e
SHA512 cbe1aebf171b54f481028208aa85fb04145cc40772cc30e67107caa5cc70c73f274da362766f125093c1fab1416c687744e53e0f7c30b6ead866c6f6ba671449
SSDEEP 48:wvvv0QTxfvvcQTxfdvv0QTxBvv0QTxakvv0QT7:mvlxvdp1vlPvlbvl7
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/112-55-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/112-54-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/112-52-0x0000000000400000-0x0000000000424000-memory.dmp

Download

memory/216-30-0x00000000741A0000-0x0000000074950000-memory.dmp

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memory/216-29-0x00000000741AE000-0x00000000741AF000-memory.dmp

Download

memory/216-37-0x00000000741A0000-0x0000000074950000-memory.dmp

Download

memory/1776-56-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1776-51-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1776-45-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1836-10-0x0000000008590000-0x000000000862C000-memory.dmp

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memory/1836-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

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memory/1836-9-0x0000000005E60000-0x0000000005F22000-memory.dmp

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memory/1836-8-0x0000000004E50000-0x0000000004E5E000-memory.dmp

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memory/1836-17-0x00000000748C0000-0x0000000075070000-memory.dmp

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memory/1836-7-0x0000000004E40000-0x0000000004E48000-memory.dmp

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memory/1836-6-0x0000000004E10000-0x0000000004E22000-memory.dmp

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memory/1836-5-0x00000000748C0000-0x0000000075070000-memory.dmp

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memory/1836-4-0x0000000004B20000-0x0000000004B2A000-memory.dmp

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memory/1836-3-0x0000000004B90000-0x0000000004C22000-memory.dmp

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memory/1836-2-0x00000000050A0000-0x0000000005644000-memory.dmp

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memory/1836-1-0x0000000000010000-0x0000000000108000-memory.dmp

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memory/2520-12-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2520-28-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2520-11-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2520-14-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2520-16-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-76-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-39-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-33-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-35-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-36-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-43-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-41-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-75-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-73-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-61-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-62-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-38-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-65-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2668-69-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2668-68-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/2668-70-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-71-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2668-72-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4136-57-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4136-48-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4136-50-0x0000000000400000-0x0000000000462000-memory.dmp

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