d205d311b0c000d722bf2aa3e6d17e519dc2460cd3de0d728cceb0654390c415

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19-03-2024 14:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d65307f2c6d672d2734f54a14bf1977b.dll
Size

88KB
MD5

d65307f2c6d672d2734f54a14bf1977b
SHA1

39040f6eceacee7c1769b888ac2707fc47a57df8
SHA256

d205d311b0c000d722bf2aa3e6d17e519dc2460cd3de0d728cceb0654390c415
SHA512

4acc3a3c04ddfc3efdbf09f999849f7c7083ad9bc347c24848e3c2fff97296982fd4044ac45b44b3a5e25b58d9429bfa7a700a9954e79423e17fa610e1d36155
SSDEEP

1536:XMuJovorLdqZUEGPjYbFcMGxoVC0vRkQIYkiQ//WhT12gu7qH:XawrnEGPjmvGutv6Dv/kv

Score

8^/10

evasion upx

Malware Config

Signatures

Blocklisted process makes network request 16 IoCs

flow	pid	Process
11	2012	rundll32.exe
14	2012	rundll32.exe
49	2012	rundll32.exe
74	2012	rundll32.exe
96	2012	rundll32.exe
98	2012	rundll32.exe
138	2012	rundll32.exe
139	2012	rundll32.exe
155	2012	rundll32.exe
177	2012	rundll32.exe
201	2012	rundll32.exe
214	2012	rundll32.exe
215	2012	rundll32.exe
229	2012	rundll32.exe
303	2012	rundll32.exe
326	2012	rundll32.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3728	netsh.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2012-0-0x0000000000B00000-0x0000000000B2D000-memory.dmp	upx
behavioral2/memory/2012-1-0x0000000000B00000-0x0000000000B2D000-memory.dmp	upx
behavioral2/memory/2012-2-0x0000000000B00000-0x0000000000B2D000-memory.dmp	upx
behavioral2/memory/2012-5-0x0000000000B00000-0x0000000000B2D000-memory.dmp	upx
behavioral2/memory/2012-15-0x0000000000B00000-0x0000000000B2D000-memory.dmp	upx

Looks up external IP address via web service 2 IoCs

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

flow	ioc
8	checkip.dyndns.org
213	checkip.dyndns.org

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Software\Microsoft\Internet Explorer\Security	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\SOFTWARE\Microsoft\Internet Explorer\Security\installation_id = fd2bb72b2829174bb2eee863cb2089a0	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 2012	3956	rundll32.exe	89
PID 3956 wrote to memory of 2012	3956	rundll32.exe	89
PID 3956 wrote to memory of 2012	3956	rundll32.exe	89
PID 2012 wrote to memory of 3728	2012	rundll32.exe	90
PID 2012 wrote to memory of 3728	2012	rundll32.exe	90
PID 2012 wrote to memory of 3728	2012	rundll32.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d65307f2c6d672d2734f54a14bf1977b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d65307f2c6d672d2734f54a14bf1977b.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\SysWOW64\rundll32.exe" "Explorer" enable
    3⤵
    - Modifies Windows Firewall
    PID:3728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2012-0-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download
memory/2012-1-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download
memory/2012-2-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download
memory/2012-5-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download
memory/2012-15-0x0000000000B00000-0x0000000000B2D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads