blister | 2aaa916d56cfe95abb65fbc222bfdfa2b16a3ffb6660c1bdc211004302a1aef3

Analysis

max time kernel
149s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
24/05/2026, 01:28

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General

Target
sub_2aaa916d56cf.exe
Size 1.1MB
Sample260524-bvwjpadv9p
SHA256 2aaa916d56cfe95abb65fbc222bfdfa2b16a3ffb6660c1bdc211004302a1aef3
MD5 70f3bf9c31361ebe3e39afc4f05fa160
SHA1 0d1c448b739b18d0e277f2db264b7a6d3d957edd
SHA512 2f1f64c8a20bc753232f7ce912f8dca36db06338df81393b95434dd5e5e60b9fd11aca3f61105eec3eb2c8bd8fd13a31d7bd6713e1e098ea251ae4511cb821f2
SSDEEP 24576:RXwmJ5CbuufVhiKWaoqdk5Tzq47Do4yykwA5BGeudzNd:llJ4budTzqScwAWeuZNd
TLSH
T16B4523151278A38BECC763B0E2124B04D257BC370EF4194E52B5FD6CEF7A9AA9B24513
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery blister loader

Malware Config

Signatures

Family: BLISTER
BLISTER is a downloader used to deliver other malware families.
loader blister

Detect Blister loader x32 2 IoCs

loader

resource	yara_rule
behavioral1/files/0x0007000000024651-1.dat	family_blister_x32
behavioral1/memory/368-3-0x00000000754A0000-0x00000000755D0000-memory.dmp	family_blister_x32

Loads dropped DLL 1 IoCs

pid	Process
368	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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 2 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 5416	468	sub_2aaa916d56cf.exe	88
PID 5416 wrote to memory of 368	5416	Rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\sub_2aaa916d56cf.exe
"C:\Users\Admin\AppData\Local\Temp\sub_2aaa916d56cf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:468
- C:\Windows\SYSTEM32\Rundll32.exe
  Rundll32.exe C:\Users\Admin\AppData\Local\Temp\rdpencom_tmp\rdpencom.dll,DllUnregisterServer
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5416
- - C:\Windows\SysWOW64\rundll32.exe
    Rundll32.exe C:\Users\Admin\AppData\Local\Temp\rdpencom_tmp\rdpencom.dll,DllUnregisterServer
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:368

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

rdpencom.dll

Path C:\Users\Admin\AppData\Local\Temp\rdpencom_tmp\rdpencom.dll
Size 1.2MB
SHA256 c0f3b27ae4f7db457a86a38244225cca35aa0960eb6a685ed350e99a36c32b61
MD5 a6d49b646ed61b91bcfe9c2170b258cd
SHA1 75c7cdddfbf538f51da8b74cbad11c302206750e
SHA512 18be0707af33a9c4e3b9c57e7c6a3a00b0a249acf606ccb7cc0d968a722637e8bfdc4f7d09da208cd9477ef915fd019ff171df8977c55481093c35d0ccf6a2cc
SSDEEP 24576:mDrIuOfGiDT2XNXWrdyv/z7f0LFrodrs4LK:8OfGKSBWxMfsLFVmK
TLSH
T1DC45F12236E88232D8F371B0577EB6B64AADBA941BB4A1DF124007EF9D317D01E24757
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/368-3-0x00000000754A0000-0x00000000755D0000-memory.dmp

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