83fe69bded2c7de0896d8957fa832956281dde5de706088bb308dc98e4e1ddea

Analysis

max time kernel
149s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
11/05/2026, 10:48

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General

Target
20260511_092104_authshellverif_co_83fe69bded.dat.dll
Size 15.4MB
Sample260511-mwfemsa15k
SHA256 83fe69bded2c7de0896d8957fa832956281dde5de706088bb308dc98e4e1ddea
MD5 c0a1f68fce8128206bb498aab1b07212
SHA1 48c82aa12e0ec6d0e409d395850e102695abc5c5
SHA512 0271183c5522105a99127cb34fb6c908cf6835e6dd8403760b8407160cd623575b53650447e018d7d2dbc3b1e921d1a4c4daad41e52005d4574f05510079559d
SSDEEP 393216:wz2B7BITGdSzHbqVSXyRW+i7J7Ax5vVAmF1JGE5f6MN:Y25BITkSzHbTaYZAx5vVD1YifX
TLSH
T1C3F612CDF5B641FACD94347F861A77C3D2FE5DF20A585866898670882533A793028ECB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

5^/10

discovery

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
3220	rundll32.exe
3220	rundll32.exe
3220	rundll32.exe
3220	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 3220	1832	rundll32.exe	80

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\20260511_092104_authshellverif_co_83fe69bded.dat.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\20260511_092104_authshellverif_co_83fe69bded.dat.dll,#1
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:3220

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

memory/3220-0-0x0000000074200000-0x0000000075162000-memory.dmp

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memory/3220-2-0x0000000074327000-0x0000000074B8C000-memory.dmp

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memory/3220-3-0x0000000004790000-0x000000000480A000-memory.dmp

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Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads