blacknet | c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671

General

Target

c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
Size

179KB
MD5

c89be917eb11b5f09561177b4cfddff5
SHA1

61f7e9a65430c732bb145864fb5ea40fddbde35e
SHA256

c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671
SHA512

6717283fd645873a042f63ea95ba01455d91a046317c0011a387bbfd352b69e71a53cb15811d0ff3ac2c7682102961da68c6fc7aa729a8fc2196e9af139ce5af
SSDEEP

3072:zobMNvy29G/P/XP3ue33nev2W33PXPmG+ePu23PfmmO3XePmmPm3PeP3uPvu/Ovi:zobwhVi2nh3HETytaoRFYBiXB

Score

10^/10

blacknet hacked trojan

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

HacKed

C2

http://194.33.45.112

Mutex

BN[]

Attributes

antivm
false
elevate_uac
false
install_name
WindowsUpdate.exe
splitter
|BN|
start_name
e162b1333458a713bc6916cc8ac4110c
startup
false
usb_spread
false

Signatures

BlackNET
BlackNET is an open source remote access tool written in VB.NET.
trojan blacknet

BlackNET payload 6 IoCs

resource	yara_rule
behavioral1/memory/1728-60-0x0000000000400000-0x000000000041E000-memory.dmp	family_blacknet
behavioral1/memory/1728-62-0x0000000000400000-0x000000000041E000-memory.dmp	family_blacknet
behavioral1/memory/1728-64-0x000000000041756E-mapping.dmp	family_blacknet
behavioral1/memory/1728-63-0x0000000000400000-0x000000000041E000-memory.dmp	family_blacknet
behavioral1/memory/1728-66-0x0000000000400000-0x000000000041E000-memory.dmp	family_blacknet
behavioral1/memory/1728-68-0x0000000000400000-0x000000000041E000-memory.dmp	family_blacknet

Contains code to disable Windows Defender 6 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/1728-60-0x0000000000400000-0x000000000041E000-memory.dmp	disable_win_def
behavioral1/memory/1728-62-0x0000000000400000-0x000000000041E000-memory.dmp	disable_win_def
behavioral1/memory/1728-64-0x000000000041756E-mapping.dmp	disable_win_def
behavioral1/memory/1728-63-0x0000000000400000-0x000000000041E000-memory.dmp	disable_win_def
behavioral1/memory/1728-66-0x0000000000400000-0x000000000041E000-memory.dmp	disable_win_def
behavioral1/memory/1728-68-0x0000000000400000-0x000000000041E000-memory.dmp	disable_win_def

Deletes itself 1 IoCs

pid	Process
880	cmd.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\startup.exe	pOwERsHeLl.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\startup.exe	pOwERsHeLl.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1060 set thread context of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
292	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
1984	pOwERsHeLl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
Token: SeDebugPrivilege	1984	pOwERsHeLl.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1728	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	27
PID 1060 wrote to memory of 1984	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	28
PID 1060 wrote to memory of 1984	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	28
PID 1060 wrote to memory of 1984	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	28
PID 1060 wrote to memory of 1984	1060	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	28
PID 1728 wrote to memory of 880	1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	31
PID 1728 wrote to memory of 880	1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	31
PID 1728 wrote to memory of 880	1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	31
PID 1728 wrote to memory of 880	1728	c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe	31
PID 880 wrote to memory of 292	880	cmd.exe	33
PID 880 wrote to memory of 292	880	cmd.exe	33
PID 880 wrote to memory of 292	880	cmd.exe	33
PID 880 wrote to memory of 292	880	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
"C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe
  "C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe"
    3⤵
    - Deletes itself
    - Suspicious use of WriteProcessMemory
    PID:880
  - - C:\Windows\SysWOW64\PING.EXE
      ping 1.1.1.1 -n 5 -w 5000
      4⤵
      Runs ping.exe
      PID:292
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\pOwERsHeLl.exe
  "pOwERsHeLl.exe" Copy-Item 'C:\Users\Admin\AppData\Local\Temp\c138d8e3110237ad4ed5dba3308a2e8a4eb685f84a55043354554b1127776671.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\startup.exe'
  2⤵
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1060-72-0x0000000004CA5000-0x0000000004CB6000-memory.dmp

Filesize
68KB

Download
memory/1060-55-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/1060-56-0x0000000000370000-0x0000000000386000-memory.dmp

Filesize
88KB

Download
memory/1060-54-0x0000000000300000-0x0000000000334000-memory.dmp

Filesize
208KB

Download
memory/1060-75-0x0000000004CA5000-0x0000000004CB6000-memory.dmp

Filesize
68KB

Download
memory/1728-58-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-63-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-66-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-68-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-62-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-60-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1728-77-0x0000000004BC7000-0x0000000004BD8000-memory.dmp

Filesize
68KB

Download
memory/1728-57-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/1984-73-0x000000006E5C0000-0x000000006EB6B000-memory.dmp

Filesize
5.7MB

Download
memory/1984-74-0x000000006E5C0000-0x000000006EB6B000-memory.dmp

Filesize
5.7MB

Download

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