nanocore | adf9026f0583527399d4a2863040d46a7adacba79dac49410ee17d5d9e679776

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 08:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

PI-A87612.pdf.pdf.exe
Size

961KB
MD5

82a9432469f65016ce851fc6774c1584
SHA1

3e9569f65d1aed3433d159d062c56d8bd876e414
SHA256

5895aaa52e9e51f9edb3b6b685373779ceb1803061625d018a1c59a792dfd734
SHA512

1aeaa6496254ee5f0391a5fe06467ca6f9ffc9040ecba95ae3b7f37d626a911c3a286c5010ab9769ffe7d8c5e6897a2731e74f64fcea00e41988f3d4a3dc1140
SSDEEP

24576:6NA3R5drXdtLRH35wmGdyhqxA8WYsXyCazFQYcaMnY6FKzb:z5bLZxGdDA8WHyZ66wFKH

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

leewardmarineservices.mywire.org:54985

leewardmarineservices.duckdns.org:54985

Mutex

459e416a-71fa-4600-8b5f-180fdaf9fc00

Attributes

activate_away_mode
true
backup_connection_host
leewardmarineservices.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-17T04:43:48.901280736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
54985
default_group
JULY-2020
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
459e416a-71fa-4600-8b5f-180fdaf9fc00
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
leewardmarineservices.mywire.org
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
2136	kicwsfwn.pif
644	RegSvcs.exe

Loads dropped DLL 5 IoCs

pid	Process
2220	PI-A87612.pdf.pdf.exe
2220	PI-A87612.pdf.pdf.exe
2220	PI-A87612.pdf.pdf.exe
2220	PI-A87612.pdf.pdf.exe
2136	kicwsfwn.pif

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\WindowsUpdate = "c:\\14224726\\kicwsfwn.pif c:\\14224726\\eldm.wla"	kicwsfwn.pif

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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2136 set thread context of 644	2136	kicwsfwn.pif	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	PI-A87612.pdf.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kicwsfwn.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1480	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
644	RegSvcs.exe
644	RegSvcs.exe
644	RegSvcs.exe
644	RegSvcs.exe
644	RegSvcs.exe
644	RegSvcs.exe
644	RegSvcs.exe
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif
2136	kicwsfwn.pif

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
644	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	644	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2136	2220	PI-A87612.pdf.pdf.exe	30
PID 2220 wrote to memory of 2136	2220	PI-A87612.pdf.pdf.exe	30
PID 2220 wrote to memory of 2136	2220	PI-A87612.pdf.pdf.exe	30
PID 2220 wrote to memory of 2136	2220	PI-A87612.pdf.pdf.exe	30
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 2136 wrote to memory of 644	2136	kicwsfwn.pif	31
PID 644 wrote to memory of 1480	644	RegSvcs.exe	32
PID 644 wrote to memory of 1480	644	RegSvcs.exe	32
PID 644 wrote to memory of 1480	644	RegSvcs.exe	32
PID 644 wrote to memory of 1480	644	RegSvcs.exe	32

C:\Users\Admin\AppData\Local\Temp\PI-A87612.pdf.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI-A87612.pdf.pdf.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2220
- C:\14224726\kicwsfwn.pif
  "C:\14224726\kicwsfwn.pif" eldm.wla
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2136
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:644
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2359.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1480

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\14224726\qhaxrb.bin

Filesize
467KB

MD5
a671fa1112cfd9435a02d5b1b5d27cdc

SHA1
e8dd19fded7ad696c4bcfe5cdb6f45cd24d11070

SHA256
c16ba92be7a0bfe622ffa2733036dd30b33e3cd3965edd5be6708e56a8a52437

SHA512
c25b3caf06e0d3cff329b8928305b078548071c73700ef181bcffc015392bb35c4e3ee8aecc6bfbc080f61dd1f7dc012313bfcc229bd6e08cbdd4a259c3ebde1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2359.tmp

Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
\14224726\kicwsfwn.pif

Filesize
652KB

MD5
4e9488deb23ac8ecc3ac404b04134c18

SHA1
1a1b28bb37e60ce7d68976b6b8f017280fe35302

SHA256
69685fb82980c4c5a23ece8272076628466c16e955d14ec5fbd6be4afa907dfb

SHA512
d3772c5b6f62bf2c74afde047b83f0fc4a0c34da25d264d4f9e9d1ae957747d66971ccecaf37355cc41e82d440fc4446d167825caa2b458d50d4a7852745a0de

Download Submit
\Users\Admin\AppData\Local\Temp\RegSvcs.exe

Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
memory/644-75-0x0000000000330000-0x000000000087D000-memory.dmp

Filesize
5.3MB

Download
memory/644-78-0x0000000000330000-0x000000000087D000-memory.dmp

Filesize
5.3MB

Download
memory/644-81-0x0000000000330000-0x000000000087D000-memory.dmp

Filesize
5.3MB

Download
memory/644-80-0x0000000000330000-0x000000000087D000-memory.dmp

Filesize
5.3MB

Download
memory/644-83-0x0000000000330000-0x0000000000368000-memory.dmp

Filesize
224KB

Download
memory/644-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/644-88-0x0000000000C00000-0x0000000000C0A000-memory.dmp

Filesize
40KB

Download
memory/644-89-0x0000000000CC0000-0x0000000000CDE000-memory.dmp

Filesize
120KB

Download
memory/644-90-0x0000000000C10000-0x0000000000C1A000-memory.dmp

Filesize
40KB

Download