b350f2c841941fcb0acec55f8fa89dfd89d75b2193811758032f18da51f7061e

Analysis

max time kernel
142s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-es
resource tags

arch:x64arch:x86image:win10-20220812-eslocale:es-esos:windows10-1703-x64systemwindows
submitted
16-01-2023 17:27

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General

Target

UltimMC/imageformats/qjpeg.dll
Size

246KB
MD5

c228c1486e203d48d9c7d84d0b631e15
SHA1

1ccdd75d6cd473d00aa17686ec98f509b1e8e360
SHA256

a55cb801a07932d263c980b14abdb464acd8150b9258260efdf535634bfe9811
SHA512

a649078738e69572276a37431c495582f933b04701deded8b5f6dd5b3c6d5b9d338ddb242b71659038d324ca74c2a8f2b229c7beba6f16ddea238f2bcbfae870
SSDEEP

6144:jutAUtpjvlyaX8XZ99bkBRSMArBPkfB917Wu:jutAavlqJMArBPkf

Score

1^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2552 wrote to memory of 2732	2552	rundll32.exe	rundll32.exe
PID 2552 wrote to memory of 2732	2552	rundll32.exe	rundll32.exe
PID 2552 wrote to memory of 2732	2552	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\imageformats\qjpeg.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\UltimMC\imageformats\qjpeg.dll,#1
  2⤵
  PID:2732

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2732-120-0x0000000000000000-mapping.dmp

Download
memory/2732-121-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-122-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-123-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-124-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-125-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-126-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-127-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-128-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-129-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-130-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-131-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-132-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-133-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-134-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-135-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-136-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-137-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-138-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-140-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-142-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-141-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-139-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-143-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-144-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-145-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-146-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-147-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-149-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-148-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-150-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-151-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-152-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-153-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-154-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-155-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-156-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-157-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-158-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-159-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-160-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-161-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-162-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-163-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-164-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-165-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-167-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-166-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-168-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-169-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download
memory/2732-170-0x0000000077C80000-0x0000000077E0E000-memory.dmp

Filesize
1.6MB

Download