79e70809a85e291f9da3d391131208ce7645dd512eb6bb71811154b43da23222

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/08/2024, 03:19

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General

Target

nhop.dll
Size

16KB
MD5

ff98a06930bd4c0a11500f2378f23ffa
SHA1

c25a3da1562f0dc0247140ff8636c88a843e9a66
SHA256

97cc714ecc6d201ff90e6947bedf9345dd9f0abffaa0687607d216f4567dfbd9
SHA512

8e33d253610a07c6603c6da9714bc18f2b9a6f3e229fd5d9873783ce842214689e3296bb37864720ca561a74b72beb5f7852ae3a732f4ec85c046646acd25916
SSDEEP

384:ckxk55jKeh7Wvh8uAWsje/ajFfwsNvtReRSY6bJDb9:cJwwqvh8uAIG2sNVRISY6N

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz = "C:\\Users\\Admin\\AppData\\Roaming\\abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstu"	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1928	3520	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe
3520	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 3520	4976	rundll32.exe	84
PID 4976 wrote to memory of 3520	4976	rundll32.exe	84
PID 4976 wrote to memory of 3520	4976	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\nhop.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\nhop.dll,#1
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:3520
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 804
    3⤵
    - Program crash
    PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3520 -ip 3520
1⤵
PID:4672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3520-0-0x0000000010000000-0x0000000010007000-memory.dmp

Filesize
28KB

Download
memory/3520-2-0x0000000010000000-0x0000000010007000-memory.dmp

Filesize
28KB

Download