8c68d04eaf5388f87d6c05d202f53fe3c366f84ee08092d14aa4a00d66a6b760

Analysis

max time kernel
144s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
20-07-2023 01:04

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General

Target

b3d7005a06021286c84ed7f8293cba966e0137df769e80579df7f3c6a2d3c1f3.dll
Size

335KB
MD5

a637c909097b250da561b12ae33e7486
SHA1

f71cc41357814b5c3b132aaaedd6a24ebbd0c102
SHA256

b3d7005a06021286c84ed7f8293cba966e0137df769e80579df7f3c6a2d3c1f3
SHA512

a02a4244947a3ca24d65a356b8ae405b4620884d033d29570a411c539f6e55eca0c579ab3b61de9a14e4eaec66417e57974ee7b28bb03e2728c359cef3168ce3
SSDEEP

6144:R1VH+po6EJ5IYW6eBveHVK8PNEt1ZJr0HkT7Npvm7sbnTH7Mx:3d4oR+YImEx/gkThp0wnTHYx

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 7 IoCs

Processes:

rundll32.exe

flow pid process

29 2784 rundll32.exe
37 2784 rundll32.exe
63 2784 rundll32.exe
67 2784 rundll32.exe
70 2784 rundll32.exe
71 2784 rundll32.exe
75 2784 rundll32.exe

flow	pid	process
29	2784	rundll32.exe
37	2784	rundll32.exe
63	2784	rundll32.exe
67	2784	rundll32.exe
70	2784	rundll32.exe
71	2784	rundll32.exe
75	2784	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\Control Panel\International\Geo\Nation	rundll32.exe

Drops file in Windows directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\Tasks\NvTmRep_CrashReport4_{ B2FE1952 - 0186 - 46H3 - BAHC - A80AA35AH5B8 }.job rundll32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\Tasks\NvTmRep_CrashReport4_{ B2FE1952 - 0186 - 46H3 - BAHC - A80AA35AH5B8 }.job	rundll32.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

Processes:

rundll32.exe

pid	process
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe
2784	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2460 wrote to memory of 2784	2460	rundll32.exe	rundll32.exe
PID 2460 wrote to memory of 2784	2460	rundll32.exe	rundll32.exe
PID 2460 wrote to memory of 2784	2460	rundll32.exe	rundll32.exe
PID 2784 wrote to memory of 4484	2784	rundll32.exe	cmd.exe
PID 2784 wrote to memory of 4484	2784	rundll32.exe	cmd.exe
PID 2784 wrote to memory of 4484	2784	rundll32.exe	cmd.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3d7005a06021286c84ed7f8293cba966e0137df769e80579df7f3c6a2d3c1f3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b3d7005a06021286c84ed7f8293cba966e0137df769e80579df7f3c6a2d3c1f3.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2784
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C nltest /domain_trusts > C:\ProgramData\TMPUSER.DAT
    3⤵
    PID:4484

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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