271de5aed87a398dedf889c16d7927e90f07facb4774a073cd4f365073fe51f8 | Triage

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29-02-2024 21:17

240229-z5c24acg6v 10

Analysis

max time kernel
141s
max time network
164s
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 21:17

Sharing

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General

Target

Bull140U.dll
Size

3.2MB
MD5

b313af0c43927a6b145ad5fa4045f5d4
SHA1

6ad88405ff040bcb7950cdf5ecb6edb24cec78ac
SHA256

0dc503f6e66b641e6c83385c63e95a62b05154d209da39f9b66ed77f224626eb
SHA512

7ff74516b7268d16accada1135b4d29bec8373701851379522637becfc9a0350ec3110fc957f3f3631ef5a2779e26ff9277416dfcecacd2f40ca4f9b4cb4cba6
SSDEEP

49152:aucCrMncHiNTP0aVY+cTiPA+uo8TWvcAuWsKnORMoZwnlmd:tbCtVYfbno7HsKnO

Score

1^/10

Malware Config

Signatures

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 4236	1452	regsvr32.exe	89
PID 1452 wrote to memory of 4236	1452	regsvr32.exe	89
PID 1452 wrote to memory of 4236	1452	regsvr32.exe	89

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\Bull140U.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1452
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\Bull140U.dll
  2⤵
  PID:4236

Network

MITRE ATT&CK Matrix

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Downloads