a4b0159a70b122f3fb0819baf57c961a004ca7d6e27da74caf46416d17568a94

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
22/07/2024, 10:01

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General

Target

MalwareBazaar.exe
Size

746KB
MD5

71d313b5f5313310749832ac58e39d28
SHA1

a1145f4d57cc9bf58e91b942554de3c72a36f4ca
SHA256

a4b0159a70b122f3fb0819baf57c961a004ca7d6e27da74caf46416d17568a94
SHA512

be07a7c92a377a388aa1d52616597e497e4d8e0d2474441f35573a78d311722c5f9356af4d9e6ce340f31d0375b626ea3cc8926bc0b35e56f35bb514ad913537
SSDEEP

12288:gLA/pWOhxMw4JM7hCQdqlaK1dFs92UzGCR+X3O+pVPHVVuRhunek0ruAA:PDmctqlaKBwZj+Xe+pRHVa0nky

Score

7^/10

persistence privilege_escalation

Malware Config

Signatures

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 3928 set thread context of 5016	3928	MalwareBazaar.exe	87
PID 5016 set thread context of 3432	5016	vbc.exe	56
PID 5016 set thread context of 3396	5016	vbc.exe	90
PID 3396 set thread context of 3432	3396	sethc.exe	56
PID 3396 set thread context of 5080	3396	sethc.exe	95

Event Triggered Execution: Accessibility Features 1 TTPs
Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.
persistence privilege_escalation

Accessibility Features
T1546.008

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3419463127-3903270268-2580331543-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	sethc.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-3419463127-3903270268-2580331543-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
5016	vbc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
5016	vbc.exe
3432	Explorer.EXE
3432	Explorer.EXE
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe
3396	sethc.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3432	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3928 wrote to memory of 5016	3928	MalwareBazaar.exe	87
PID 3432 wrote to memory of 3396	3432	Explorer.EXE	90
PID 3432 wrote to memory of 3396	3432	Explorer.EXE	90
PID 3432 wrote to memory of 3396	3432	Explorer.EXE	90
PID 3396 wrote to memory of 5080	3396	sethc.exe	95
PID 3396 wrote to memory of 5080	3396	sethc.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: MapViewOfSection
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3928
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:5016
- C:\Windows\SysWOW64\sethc.exe
  "C:\Windows\SysWOW64\sethc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:3396
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:5080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Privilege Escalation

Event Triggered Execution

T1546

Accessibility Features

T1546.008

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3396-21-0x0000000000CF0000-0x0000000000D2F000-memory.dmp

Filesize
252KB

Download
memory/3396-20-0x0000000000CF0000-0x0000000000D2F000-memory.dmp

Filesize
252KB

Download
memory/3396-24-0x0000000002DC0000-0x000000000310A000-memory.dmp

Filesize
3.3MB

Download
memory/3396-25-0x0000000000CF0000-0x0000000000D2F000-memory.dmp

Filesize
252KB

Download
memory/3396-26-0x00000000031C0000-0x0000000003262000-memory.dmp

Filesize
648KB

Download
memory/3396-28-0x0000000000CF0000-0x0000000000D2F000-memory.dmp

Filesize
252KB

Download
memory/3432-29-0x00000000030B0000-0x0000000003198000-memory.dmp

Filesize
928KB

Download
memory/3432-27-0x000000000D400000-0x0000000010585000-memory.dmp

Filesize
49.5MB

Download
memory/3432-19-0x000000000D400000-0x0000000010585000-memory.dmp

Filesize
49.5MB

Download
memory/3928-6-0x0000000005770000-0x000000000580C000-memory.dmp

Filesize
624KB

Download
memory/3928-7-0x0000000005A50000-0x0000000005A60000-memory.dmp

Filesize
64KB

Download
memory/3928-4-0x00000000054A0000-0x00000000054AA000-memory.dmp

Filesize
40KB

Download
memory/3928-13-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/3928-9-0x0000000008300000-0x000000000838A000-memory.dmp

Filesize
552KB

Download
memory/3928-0-0x000000007503E000-0x000000007503F000-memory.dmp

Filesize
4KB

Download
memory/3928-5-0x0000000075030000-0x00000000757E0000-memory.dmp

Filesize
7.7MB

Download
memory/3928-3-0x00000000054D0000-0x0000000005562000-memory.dmp

Filesize
584KB

Download
memory/3928-2-0x0000000005A80000-0x0000000006024000-memory.dmp

Filesize
5.6MB

Download
memory/3928-8-0x0000000005A60000-0x0000000005A6E000-memory.dmp

Filesize
56KB

Download
memory/3928-1-0x0000000000B10000-0x0000000000BD0000-memory.dmp

Filesize
768KB

Download
memory/5016-15-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5016-22-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5016-23-0x0000000001840000-0x0000000001863000-memory.dmp

Filesize
140KB

Download
memory/5016-18-0x0000000001840000-0x0000000001863000-memory.dmp

Filesize
140KB

Download
memory/5016-17-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5016-16-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5016-14-0x0000000001960000-0x0000000001CAA000-memory.dmp

Filesize
3.3MB

Download
memory/5016-12-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5016-10-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/5080-36-0x000001A766D70000-0x000001A766E4F000-memory.dmp

Filesize
892KB

Download