nanocore | dd6f0b9730529cfe145d5585eccfb6c68510758d16ffd02043bd1fe73842ee1b

Resubmissions

07-11-2024 16:29

241107-tzeqvawbpe 10

07-11-2024 06:54

241107-hpd6sazqap 10

Analysis

max time kernel
142s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 06:54

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General

Target

304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
Size

203KB
MD5

76b5931a8eab2e7e98023a43c489bbbf
SHA1

033e6f5547c62a8650f449fc5b0034424f9b5f85
SHA256

304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b
SHA512

533f26e6379f35bf8aae578461b538ae891d9c00386476dab2235fc965655b35f0ca5433cd5c9c5c106b66369ef37c9e76c091e9635aad9dc2ca57af033344b1
SSDEEP

3072:szEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIGXzDtCihaFue8Y1WRFj7KV7i:sLV6Bta6dtJmakIM5/NC5x8Y167Y7i

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Unexpected DNS network traffic destination 12 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	84.200.69.80
Destination IP	84.200.70.40
Destination IP	84.200.70.40
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.70.40
Destination IP	84.200.70.40
Destination IP	84.200.69.80
Destination IP	84.200.69.80
Destination IP	84.200.70.40
Destination IP	84.200.70.40
Destination IP	84.200.69.80

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Service = "C:\\Program Files (x86)\\LAN Service\\lansv.exe"	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LAN Service\lansv.exe	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
File opened for modification	C:\Program Files (x86)\LAN Service\lansv.exe	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2216	schtasks.exe
3280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
Token: SeDebugPrivilege	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 3280	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	88
PID 4396 wrote to memory of 3280	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	88
PID 4396 wrote to memory of 3280	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	88
PID 4396 wrote to memory of 2216	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	90
PID 4396 wrote to memory of 2216	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	90
PID 4396 wrote to memory of 2216	4396	304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe	90

C:\Users\Admin\AppData\Local\Temp\304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe
"C:\Users\Admin\AppData\Local\Temp\304f9bc7de67c32d895d2a005283ae4b7a63e390915463ca0a9aa404a9e29e1b.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD9C6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3280
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDA25.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD9C6.tmp

Filesize
1KB

MD5
f8d94348e9e0b4a67b3be7e5c3e4924f

SHA1
b70034fe263152e267998fbed76c06a7e0daf83e

SHA256
8049a27b744d605b123011957117d752424135d35e8e3340d2b9b05164fb73f8

SHA512
78e9c58bab031123f54057d0bbd9c7dccf8da6e84bd9e32d6b4b0ecbd7737899a4f7a6f27999e38cdfc17b8c26c2ffad2dfde73b72cd38893ceddf7aad287b88

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDA25.tmp

Filesize
1KB

MD5
6b30dba7972c92c9a1b881e88c108b15

SHA1
f76207985cc5a1f70edb2fb5bd45678f195a4564

SHA256
578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

SHA512
e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

Download Submit
memory/4396-0-0x00000000754B2000-0x00000000754B3000-memory.dmp

Filesize
4KB

Download
memory/4396-1-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download
memory/4396-2-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download
memory/4396-10-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download
memory/4396-11-0x00000000754B2000-0x00000000754B3000-memory.dmp

Filesize
4KB

Download
memory/4396-12-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download
memory/4396-13-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download
memory/4396-14-0x00000000754B0000-0x0000000075A61000-memory.dmp

Filesize
5.7MB

Download