990ff8d1465fa4d17994890d0503bb9f828aafbc0102203b6b5195015fac113b | Triage

Analysis

max time kernel
259s
max time network
318s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
12/10/2023, 16:58

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General

Target

mail_change/api-ms-win-core-debug-l1-1-0.dll
Size

18KB
MD5

4cb14835b061f42179d5251e744fd667
SHA1

4a1b0b32963a20c479927e4e008bfa9b4168f226
SHA256

f9aaaabf78feb39a1d8e971f5ce047d1c4a896a80409b800f1f7112cdce420ed
SHA512

20c11b2dcf8a928d04cfe6a0130716cc474d48c996025950214d6f9e97bf26b0ec6e2a68f954b0875fc05ca49811bc6e943f91b592fecd14cc8fddd3201841e9
SSDEEP

384:EWEhWbC2Jq0GftpBjDNACiERHRN7lVTdlrltm:SoLifNiEBDl

Score

1^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2552	2636	rundll32.exe	26
PID 2636 wrote to memory of 2552	2636	rundll32.exe	26
PID 2636 wrote to memory of 2552	2636	rundll32.exe	26

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\mail_change\api-ms-win-core-debug-l1-1-0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2636 -s 84
  2⤵
  PID:2552

Network

MITRE ATT&CK Matrix

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Downloads