blacknet | c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0

General

Target

44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
Size

85KB
MD5

44ae5900e0b03963ee0a02e72f004fc1
SHA1

fdebc2d4c5f5f79c10dab9197875aa5964f9f72e
SHA256

c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0
SHA512

e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb
SSDEEP

1536:gW27RutYPWEBX749J5QsVdmUqkbv49FusL8u91l:Yo5QGdCkbvCFn8uh

Score

10^/10

blacknet hacked_atid_test_2 persistence trojan

Malware Config

Extracted

Family

blacknet

Version

v3.5 Public

Botnet

HacKed_ATID_TEST_2

C2

https://nicurb.com/blacknet

Mutex

BN[TUdBvZbI-4797323]

Attributes

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

Signatures

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

BlackNET payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015e6d-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.

resource	yara_rule
behavioral1/files/0x0008000000015e6d-11.dat	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
2428	WindowsUpdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe"	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\df7427b5e05183e625345c3c37ef31c0 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Microsoft\\MyClient\\WindowsUpdate.exe"	44ae5900e0b03963ee0a02e72f004fc1_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

pid	Process
2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
2428	WindowsUpdate.exe
2428	WindowsUpdate.exe
2428	WindowsUpdate.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
Token: SeDebugPrivilege	2428	WindowsUpdate.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
2428	WindowsUpdate.exe
2428	WindowsUpdate.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2428	2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe	29
PID 2972 wrote to memory of 2428	2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe	29
PID 2972 wrote to memory of 2428	2972	44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\44ae5900e0b03963ee0a02e72f004fc1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\44ae5900e0b03963ee0a02e72f004fc1_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:2972
- C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe
  "C:\Users\Admin\AppData\Local\Temp\Microsoft\MyClient\WindowsUpdate.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2428

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
85KB

MD5
44ae5900e0b03963ee0a02e72f004fc1

SHA1
fdebc2d4c5f5f79c10dab9197875aa5964f9f72e

SHA256
c214b31584d7f10aac62a292961052fecb27885fede2efe65c7f4cc40ae6dce0

SHA512
e3baa84f2b1a0e64aaedb0568ade8ae50d7acfddec1880aa7927dc3a8485ed598b49183d1ea953cc6e72e282e3cb002e7bf471f31bf5ec99ccacda2a910cb7bb

Download Submit
memory/2428-13-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2428-15-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-0-0x000007FEF5DAE000-0x000007FEF5DAF000-memory.dmp

Filesize
4KB

Download
memory/2972-1-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-2-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-3-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-4-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-5-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-6-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-14-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download
memory/2972-16-0x000007FEF5AF0000-0x000007FEF648D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads