8b9977c66c0057b1629e024b68dc609db2b3287b975941b9aa2f3eed0a435c5d | Triage

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11/10/2023, 12:10

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General

Target

hyperterminal/htrn_jis.dll
Size

13KB
MD5

f4d959e7716e571090fc7d2788674175
SHA1

c17458c7c7af3fef089ae199a9d663b1848b78fc
SHA256

ecb2c004aeee8b628a347ccda520f66bd32392f4255f8cc40576c5a02bd21d39
SHA512

88ddc0befbe6fbcd95d59dc17b81ccaaa4356d25a0ce885a797ee07d651f2027b6e382e55ad66190addef7d635764c6d082a7f33b815d6cca78bcb8b006d8451
SSDEEP

384:OGbLQ2TvAjs09Led+BykaH/9piuPMKkPtF:O8Q2LAhO+wxf9JrkVF

Score

3^/10

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4692	4784	WerFault.exe	85

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 4784	2168	rundll32.exe	85
PID 2168 wrote to memory of 4784	2168	rundll32.exe	85
PID 2168 wrote to memory of 4784	2168	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\hyperterminal\htrn_jis.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\hyperterminal\htrn_jis.dll,#1
  2⤵
  PID:4784
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 660
    3⤵
    - Program crash
    PID:4692

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4784 -ip 4784
1⤵
PID:3708

Network

MITRE ATT&CK Matrix

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