nanocore | d983a9bf2395fc6ae2a1edfea08e53cc4bd02f9a38e8be74621e6b5c3e101613

General

Target

73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
Size

418KB
MD5

73ee54f485eac5da928356347b602e23
SHA1

cbda6cc900bcd899d0bb216b32ac678fa35c4dd4
SHA256

d983a9bf2395fc6ae2a1edfea08e53cc4bd02f9a38e8be74621e6b5c3e101613
SHA512

ce6fcb55ce135f3ac5c7851ef6fec11a2e2a87fa20c9f82cee8ad7c73a1598320504b3be2b25d91da21a7701cf077cc7ee7fe0a6103ea669a6db197dcb4803d2
SSDEEP

6144:8tPxzNbL7GgArb2tX4RzQZyuqf/5hu+gvcqZcRl/7ineAdb7nzn25P9iYYAps7T:CPz7nAf26QU5tmm7seAdbjLMAYYAu

Score

10^/10

nanocore defense_evasion discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

fojasoftwareaudio.ignorelist.com:6835

127.0.0.1:6835

Mutex

38c360cd-1f10-4e2d-a05a-12ba8f056734

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2017-09-12T08:22:08.373899736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6835
default_group
Default
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
38c360cd-1f10-4e2d-a05a-12ba8f056734
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
fojasoftwareaudio.ignorelist.com
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 1 IoCs

pid	Process
4492	svhost.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	svhost.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe:Zone.Identifier	cmd.exe

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 6 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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1844	timeout.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
4492	svhost.exe
4492	svhost.exe
4492	svhost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4492	svhost.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
Token: SeDebugPrivilege	4492	svhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 4588	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	85
PID 2176 wrote to memory of 4588	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	85
PID 2176 wrote to memory of 4588	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	85
PID 4588 wrote to memory of 4068	4588	cmd.exe	87
PID 4588 wrote to memory of 4068	4588	cmd.exe	87
PID 4588 wrote to memory of 4068	4588	cmd.exe	87
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 4492	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	89
PID 2176 wrote to memory of 2372	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	90
PID 2176 wrote to memory of 2372	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	90
PID 2176 wrote to memory of 2372	2176	73ee54f485eac5da928356347b602e23_JaffaCakes118.exe	90
PID 2372 wrote to memory of 1844	2372	cmd.exe	92
PID 2372 wrote to memory of 1844	2372	cmd.exe	92
PID 2372 wrote to memory of 1844	2372	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\73ee54f485eac5da928356347b602e23_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\73ee54f485eac5da928356347b602e23_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe.lnk" /f
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4068
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4492
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 300
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe.bat

Filesize
203B

MD5
b30714e3a4fda51d59ae89f06fae6eb9

SHA1
8399ba9649ff95873b553cc76515518ae5bac844

SHA256
471be658fecfa5e3e0fee1fb3f335083ac558df4caa6530014230cf7d645c31a

SHA512
6dcc2b2ca9b63b89c58a6f3334a3e1c19169ae1532445f1b6a1fbc85c124cfc61bbcc35e5fba0edaf651ec8b8d704698bfbcd6a5dc5cb00ab97e3c01dcea9daf

Download Submit
C:\Users\Admin\AppData\Local\Temp\nhtbg\efdwe.exe.jpg

Filesize
418KB

MD5
73ee54f485eac5da928356347b602e23

SHA1
cbda6cc900bcd899d0bb216b32ac678fa35c4dd4

SHA256
d983a9bf2395fc6ae2a1edfea08e53cc4bd02f9a38e8be74621e6b5c3e101613

SHA512
ce6fcb55ce135f3ac5c7851ef6fec11a2e2a87fa20c9f82cee8ad7c73a1598320504b3be2b25d91da21a7701cf077cc7ee7fe0a6103ea669a6db197dcb4803d2

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost.exe

Filesize
89KB

MD5
84c42d0f2c1ae761bef884638bc1eacd

SHA1
4353881e7f4e9c7610f4e0489183b55bb58bb574

SHA256
331487446653875bf1e628b797a5283e40056654f7ff328eafbe39b0304480d3

SHA512
43c307a38faa3a4b311597034cf75035a4434a1024d2a54e867e6a94b53b677898d71a858438d119000e872a7a6e92c5b31d277a8c207a94375ed4fd3c7beb87

Download Submit
memory/2176-1-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/2176-2-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/2176-0-0x0000000074DA2000-0x0000000074DA3000-memory.dmp

Filesize
4KB

Download
memory/2176-24-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/2176-21-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/2176-20-0x0000000074DA2000-0x0000000074DA3000-memory.dmp

Filesize
4KB

Download
memory/4492-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4492-19-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/4492-16-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/4492-13-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/4492-22-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/4492-12-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download
memory/4492-25-0x0000000074DA0000-0x0000000075351000-memory.dmp

Filesize
5.7MB

Download

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