blacknet | e85dd1e7ab0b26928c8f917ff0849e745d975c97a9391171ea7218983e441eb3

General

Target

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
Size

131KB
MD5

38461cc4e383b3cfdefd41e987df1927
SHA1

fa4c651866f3ddbbeca98f5c3472d1c963700822
SHA256

e85dd1e7ab0b26928c8f917ff0849e745d975c97a9391171ea7218983e441eb3
SHA512

fb638bfe83790983481c1a0027aa605d301c9cfc07d98989f716e105fa8c4dcfe57091a3caadfd4123fa3475397a1993277e1a69d6fe099f31469fd76ed7cc97
SSDEEP

1536:GW27RutYPWEBjRqqv0XvZVdmUqkbv49FusLT09s7MzhLbbATOX1A/1uh1T:Wn0XvjdCkbvCFnVM8Nu7

Score

10^/10

blacknet hacked_atid2 persistence trojan

Malware Config

Extracted

Family

blacknet

Version

v3.5 Public

Botnet

HacKed_ATID2

C2

https://nicurb.com/blacknet

Mutex

BN[vZbIOhpf-3232302]

Attributes

antivm
false
elevate_uac
false
install_name
WindowsUpdates.exe
splitter
|BN|
start_name
df7427b5e05183e625345c3c37ef31c0
startup
true
usb_spread
true

aes.plain

Signatures

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

BlackNET payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x000a000000012343-11.dat	family_blacknet

Contains code to disable Windows Defender 1 IoCs

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

Processes:

resource	yara_rule
behavioral1/files/0x000a000000012343-11.dat	disable_win_def

Executes dropped EXE 1 IoCs

Processes:

WindowsUpdates.exe

pid	Process
2748	WindowsUpdates.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe"	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdates.exe"	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exeWindowsUpdates.exe

pid	Process
1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
2748	WindowsUpdates.exe
2748	WindowsUpdates.exe
2748	WindowsUpdates.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exeWindowsUpdates.exe

description	pid	Process
Token: SeDebugPrivilege	1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
Token: SeDebugPrivilege	2748	WindowsUpdates.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exeWindowsUpdates.exe

pid	Process
1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
2748	WindowsUpdates.exe
2748	WindowsUpdates.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1976 wrote to memory of 2748	1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe	29
PID 1976 wrote to memory of 2748	1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe	29
PID 1976 wrote to memory of 2748	1976	38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\38461cc4e383b3cfdefd41e987df1927_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdates.exe
  "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdates.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdates.exe

Filesize
131KB

MD5
38461cc4e383b3cfdefd41e987df1927

SHA1
fa4c651866f3ddbbeca98f5c3472d1c963700822

SHA256
e85dd1e7ab0b26928c8f917ff0849e745d975c97a9391171ea7218983e441eb3

SHA512
fb638bfe83790983481c1a0027aa605d301c9cfc07d98989f716e105fa8c4dcfe57091a3caadfd4123fa3475397a1993277e1a69d6fe099f31469fd76ed7cc97

Download Submit
memory/1976-0-0x000007FEF4DAE000-0x000007FEF4DAF000-memory.dmp

Filesize
4KB

Download
memory/1976-1-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-2-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-3-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-4-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-5-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-6-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-16-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/1976-17-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/2748-14-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download
memory/2748-15-0x000007FEF4AF0000-0x000007FEF548D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads