blister | fc10619c7cb6b5de6ba8f58fd3ff889045ef77ea4cde4de7c5f313dbef1a7bc3

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-02-2024 17:44

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General

Target

$TEMP/lib_npp/libcef.dll
Size

29.8MB
MD5

0e8f94415c1e7694cb6b88bbf17f9339
SHA1

df8be7a1694144e1613300c9e60da321b49fdd79
SHA256

c1e6d8d159d05d34b6d97ff8629c0a266dd7b7c0665f19a5defc33aaa307f5e2
SHA512

9f09399507b41c50a9838c1a26debcc3a405cc8c2191bbb7ef6d8b52ce443e532ae90ddd03a1f6a0eb50b2e8cd6b42a542872e8d717353692f0ecd82fef1b7ff
SSDEEP

786432:u7GbWhs7Bcgr7wOw/2jt+KOY5rr4/ITehQ57c/RO2Tp7XvQT5:NbWhs7Bcgr7wtKt+KOY5rr4/ITeyc/RK

Score

10^/10

blister loader vmprotect

Malware Config

Signatures

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

Detect Blister loader x32 1 IoCs

loader

Processes:

resource	yara_rule
behavioral4/memory/4296-7-0x0000000072F10000-0x0000000074D1F000-memory.dmp	family_blister_x32

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral4/memory/4296-7-0x0000000072F10000-0x0000000074D1F000-memory.dmp	vmprotect

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

4296 rundll32.exe

pid	process
4296	rundll32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

rundll32.exe

pid process

4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe
4296 rundll32.exe

pid	process
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe
4296	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 1360 wrote to memory of 4296	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 4296	1360	rundll32.exe	rundll32.exe
PID 1360 wrote to memory of 4296	1360	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\lib_npp\libcef.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\lib_npp\libcef.dll,#1
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4296-0-0x00000000012A0000-0x00000000012A1000-memory.dmp

Filesize
4KB

Download
memory/4296-1-0x0000000001480000-0x0000000001481000-memory.dmp

Filesize
4KB

Download
memory/4296-2-0x00000000014B0000-0x00000000014B1000-memory.dmp

Filesize
4KB

Download
memory/4296-4-0x00000000014D0000-0x00000000014D1000-memory.dmp

Filesize
4KB

Download
memory/4296-3-0x00000000014C0000-0x00000000014C1000-memory.dmp

Filesize
4KB

Download
memory/4296-5-0x00000000014E0000-0x00000000014E1000-memory.dmp

Filesize
4KB

Download
memory/4296-6-0x00000000014F0000-0x00000000014F1000-memory.dmp

Filesize
4KB

Download
memory/4296-7-0x0000000072F10000-0x0000000074D1F000-memory.dmp

Filesize
30.1MB

Download