d205d311b0c000d722bf2aa3e6d17e519dc2460cd3de0d728cceb0654390c415

Analysis

max time kernel
147s
max time network
147s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-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 15 IoCs

flow	pid	Process
6	1876	rundll32.exe
7	1876	rundll32.exe
8	1876	rundll32.exe
9	1876	rundll32.exe
16	1876	rundll32.exe
18	1876	rundll32.exe
19	1876	rundll32.exe
20	1876	rundll32.exe
21	1876	rundll32.exe
28	1876	rundll32.exe
29	1876	rundll32.exe
31	1876	rundll32.exe
32	1876	rundll32.exe
34	1876	rundll32.exe
37	1876	rundll32.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3024	netsh.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1876-3-0x0000000000130000-0x000000000015D000-memory.dmp	upx
behavioral1/memory/1876-4-0x0000000000130000-0x000000000015D000-memory.dmp	upx
behavioral1/memory/1876-9-0x0000000000130000-0x000000000015D000-memory.dmp	upx

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
4	checkip.dyndns.org

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Security	rundll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Internet Explorer\Security\installation_id = 6b14cccfba4e714bb643cb6b8dfde99b	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 2388 wrote to memory of 1876	2388	rundll32.exe	28
PID 1876 wrote to memory of 3024	1876	rundll32.exe	29
PID 1876 wrote to memory of 3024	1876	rundll32.exe	29
PID 1876 wrote to memory of 3024	1876	rundll32.exe	29
PID 1876 wrote to memory of 3024	1876	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d65307f2c6d672d2734f54a14bf1977b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2388
- 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:1876
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\SysWOW64\rundll32.exe" "Explorer" enable
    3⤵
    - Modifies Windows Firewall
    PID:3024

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/1876-0-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/1876-1-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/1876-2-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/1876-3-0x0000000000130000-0x000000000015D000-memory.dmp

Filesize
180KB

Download
memory/1876-4-0x0000000000130000-0x000000000015D000-memory.dmp

Filesize
180KB

Download
memory/1876-6-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/1876-7-0x0000000000120000-0x000000000014D000-memory.dmp

Filesize
180KB

Download
memory/1876-9-0x0000000000130000-0x000000000015D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads