589a6af86682b17c1dec64c756196fd54b08c412cb9764b6a935610197649153

Analysis

max time kernel
150s
max time network
126s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 08:04

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General

Target

b.exe
Size

889KB
MD5

03c469798bf1827d989f09f346ce95f7
SHA1

05e491bc1b8fbfbfdca24b565f2464137f30691e
SHA256

de87c8713fac002b0b0a0f9b02c4e3ebcccf65282a22f5ab5912a9da00f35c2a
SHA512

d95aed75dd7b2470d4e5052b4b494ad9efbb9eee42c63cf0b38f1d0275ff7b1bb8ee4cbc69d1bb219dbbf33ad3b01cea97f87fa8fe69be7f943aa4417a603238
SSDEEP

24576:mjSsPIqS9jL0rJ3n770E9d8qTtE4n4CucuH:GzyH0ZOqTGQ4CDu

Score

6^/10

Malware Config

Signatures

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	ipinfo.io

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\Main\FormSuggest Passwords = "No"	b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\Main\FormSuggest PW Ask = "No"	b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3185155662-718608226-894467740-1000\Software\Microsoft\Internet Explorer\Main\Use FormSuggest = "No"	b.exe

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2808	b.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2808	b.exe
2808	b.exe
2808	b.exe
2808	b.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2808	b.exe
2808	b.exe
2808	b.exe

C:\Users\Admin\AppData\Local\Temp\b.exe
"C:\Users\Admin\AppData\Local\Temp\b.exe"
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2808-0-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2808-2-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2808-4-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2808-6-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2808-5-0x0000000003250000-0x0000000005037000-memory.dmp

Filesize
29.9MB

Download
memory/2808-8-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2808-10-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2808-11-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2808-14-0x0000000003250000-0x0000000005037000-memory.dmp

Filesize
29.9MB

Download
memory/2808-13-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2808-17-0x0000000077530000-0x0000000077531000-memory.dmp

Filesize
4KB

Download
memory/2808-16-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2808-20-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2808-22-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2808-25-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2808-27-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/2808-32-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2808-30-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2808-37-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2808-35-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2808-40-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2808-41-0x0000000003250000-0x0000000005037000-memory.dmp

Filesize
29.9MB

Download
memory/2808-42-0x0000000003250000-0x0000000005037000-memory.dmp

Filesize
29.9MB

Download