remcos | ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 15:53

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General

Target

ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
Size

885KB
MD5

44fa8131343f26aaf5303090d7bba260
SHA1

6ae8634d960f8e659ad166d4e1d95297ac114de3
SHA256

ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255
SHA512

90ba08e0cc3b8cc1f9dbe401e07110c667354a39dd52ffbaa7f2cbbea93bb99d783fb48bec60f759cafcc1e9d3b74d7d5db359c15dd48b4198608f6ee0e77a1d
SSDEEP

12288:0SX+8K/4lBlrzDUw8s9pVdsVSEy202NKu8SnTo/Yj40Eg1grROuYFRl115yzuwdL:0J4fZDUw8YpVds9mt0o/Y7gMVvTy

Score

10^/10

remcos remotehost collection discovery 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

Detected Nirsoft tools 3 IoCs

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

resource	yara_rule
behavioral2/memory/4592-57-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4476-56-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/5100-55-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4592-57-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4476-56-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe

Executes dropped EXE 6 IoCs

pid	Process
4992	Adobe.exe
952	Adobe.exe
4476	Adobe.exe
4592	Adobe.exe
5100	Adobe.exe
1604	Adobe.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe-OTOIRK = "\"C:\\ProgramData\\Adobe\\Adobe.exe\""	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 3624 set thread context of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 4992 set thread context of 952	4992	Adobe.exe	91
PID 952 set thread context of 4476	952	Adobe.exe	93
PID 952 set thread context of 4592	952	Adobe.exe	94
PID 952 set thread context of 5100	952	Adobe.exe	96

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 7 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	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Adobe.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5100	Adobe.exe
5100	Adobe.exe
4476	Adobe.exe
4476	Adobe.exe
4476	Adobe.exe
4476	Adobe.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
952	Adobe.exe
952	Adobe.exe
952	Adobe.exe
952	Adobe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5100	Adobe.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 3624 wrote to memory of 416	3624	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	87
PID 416 wrote to memory of 4992	416	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	88
PID 416 wrote to memory of 4992	416	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	88
PID 416 wrote to memory of 4992	416	ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe	88
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 4992 wrote to memory of 952	4992	Adobe.exe	91
PID 952 wrote to memory of 4476	952	Adobe.exe	93
PID 952 wrote to memory of 4476	952	Adobe.exe	93
PID 952 wrote to memory of 4476	952	Adobe.exe	93
PID 952 wrote to memory of 4476	952	Adobe.exe	93
PID 952 wrote to memory of 4592	952	Adobe.exe	94
PID 952 wrote to memory of 4592	952	Adobe.exe	94
PID 952 wrote to memory of 4592	952	Adobe.exe	94
PID 952 wrote to memory of 4592	952	Adobe.exe	94
PID 952 wrote to memory of 1604	952	Adobe.exe	95
PID 952 wrote to memory of 1604	952	Adobe.exe	95
PID 952 wrote to memory of 1604	952	Adobe.exe	95
PID 952 wrote to memory of 5100	952	Adobe.exe	96
PID 952 wrote to memory of 5100	952	Adobe.exe	96
PID 952 wrote to memory of 5100	952	Adobe.exe	96
PID 952 wrote to memory of 5100	952	Adobe.exe	96

C:\Users\Admin\AppData\Local\Temp\ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
"C:\Users\Admin\AppData\Local\Temp\ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3624
- C:\Users\Admin\AppData\Local\Temp\ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe
  "C:\Users\Admin\AppData\Local\Temp\ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:416
- - C:\ProgramData\Adobe\Adobe.exe
    "C:\ProgramData\Adobe\Adobe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - C:\ProgramData\Adobe\Adobe.exe
      "C:\ProgramData\Adobe\Adobe.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:952
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\kdffncjaolowdu"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:4476
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\mglqoutuctgbfafzsi"
        5⤵
        Executes dropped EXE
        Accesses Microsoft Outlook accounts
        System Location Discovery: System Language Discovery
        
        PID:4592
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\xaqiomevqbygpgbdjslnk"
        5⤵
        Executes dropped EXE
        
        PID:1604
    - - C:\ProgramData\Adobe\Adobe.exe
        
        C:\ProgramData\Adobe\Adobe.exe /stext "C:\Users\Admin\AppData\Local\Temp\xaqiomevqbygpgbdjslnk"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:5100

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

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\Adobe\Adobe.exe

Filesize
885KB

MD5
44fa8131343f26aaf5303090d7bba260

SHA1
6ae8634d960f8e659ad166d4e1d95297ac114de3

SHA256
ae72b0b7e4c361d0016ed97ac0664e0c8f3d31dd9627c993b635b5fac24d7255

SHA512
90ba08e0cc3b8cc1f9dbe401e07110c667354a39dd52ffbaa7f2cbbea93bb99d783fb48bec60f759cafcc1e9d3b74d7d5db359c15dd48b4198608f6ee0e77a1d

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

Filesize
4KB

MD5
2538ec9e8425a905937573069b77d4c2

SHA1
ad0c2b7aff4382e23444d26adac96d9697b849f3

SHA256
29338949fae4c88a972837aae898529e4c7a2c4df35982eef2f8d7b602c17f4e

SHA512
a867a471b837b9c662528ee7a5904e8fe7b1eebb277b8a7fe4d4caf423fae914baf692bb5004c02ddb539b157d63326178467e28b03aa92a533cda19155d501c

Download Submit
memory/416-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/416-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/416-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/416-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/416-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-64-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/952-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/952-67-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/952-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/952-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3624-1-0x0000000000F90000-0x0000000001074000-memory.dmp

Filesize
912KB

Download
memory/3624-9-0x0000000007600000-0x00000000076C0000-memory.dmp

Filesize
768KB

Download
memory/3624-10-0x0000000009C30000-0x0000000009CCC000-memory.dmp

Filesize
624KB

Download
memory/3624-7-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/3624-6-0x0000000005C60000-0x0000000005C70000-memory.dmp

Filesize
64KB

Download
memory/3624-4-0x00000000744F0000-0x0000000074CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

Filesize
4KB

Download
memory/3624-5-0x0000000005B20000-0x0000000005B2A000-memory.dmp

Filesize
40KB

Download
memory/3624-17-0x00000000744F0000-0x0000000074CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3624-3-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/3624-2-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/3624-8-0x00000000744F0000-0x0000000074CA0000-memory.dmp

Filesize
7.7MB

Download
memory/4476-46-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4476-56-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4476-50-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4592-51-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4592-48-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4592-57-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4992-30-0x0000000073E10000-0x00000000745C0000-memory.dmp

Filesize
7.7MB

Download
memory/4992-29-0x0000000073E1E000-0x0000000073E1F000-memory.dmp

Filesize
4KB

Download
memory/4992-31-0x0000000073E1E000-0x0000000073E1F000-memory.dmp

Filesize
4KB

Download
memory/4992-32-0x0000000073E10000-0x00000000745C0000-memory.dmp

Filesize
7.7MB

Download
memory/4992-38-0x0000000073E10000-0x00000000745C0000-memory.dmp

Filesize
7.7MB

Download
memory/5100-54-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5100-55-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5100-52-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download