nanocore | f9f0ee1a3ac1ae5260be8397d9b610b960971a9df353f41be9fa4596aff5eff3

Analysis

max time kernel
90s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
27/06/2022, 09:29

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General

Target
0932062722.exe
Size 567KB
Sample220627-lfwk9aabcj
SHA256 f9f0ee1a3ac1ae5260be8397d9b610b960971a9df353f41be9fa4596aff5eff3
MD5 fd6ce68ce0d615782bb0f742249609c9
SHA1 5a108c8981329d49e2ccd1c9e05feaaf53395336
SHA512 fbd955a5deb8fc6b7423e9cbca1ae1bf444d809de16fbb915e2c87c68d6d0585f461850ede594bdcfeea2e630b8ee02575923040b578337f9a6e212e2ad6519c
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

xp230522.ddns.net:1990

Mutex

5588416c-95e1-4cee-a1f2-2062b5655327

Attributes

activate_away_mode
true
backup_connection_host
xp230522.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-03-04T22:49:03.870407136Z
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
1990
default_group
XP
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
5588416c-95e1-4cee-a1f2-2062b5655327
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
xp230522.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Monitor = "C:\\Program Files (x86)\\WPA Monitor\\wpamon.exe"	0932062722.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	0932062722.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3196 set thread context of 4980	3196	0932062722.exe	91

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	0932062722.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	0932062722.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1680	schtasks.exe
688	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4980	0932062722.exe
4980	0932062722.exe
4980	0932062722.exe
4980	0932062722.exe
4980	0932062722.exe
4980	0932062722.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4980	0932062722.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4980	0932062722.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 3196 wrote to memory of 4980	3196	0932062722.exe	91
PID 4980 wrote to memory of 1680	4980	0932062722.exe	92
PID 4980 wrote to memory of 1680	4980	0932062722.exe	92
PID 4980 wrote to memory of 1680	4980	0932062722.exe	92
PID 4980 wrote to memory of 688	4980	0932062722.exe	94
PID 4980 wrote to memory of 688	4980	0932062722.exe	94
PID 4980 wrote to memory of 688	4980	0932062722.exe	94

C:\Users\Admin\AppData\Local\Temp\0932062722.exe
"C:\Users\Admin\AppData\Local\Temp\0932062722.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Users\Admin\AppData\Local\Temp\0932062722.exe
  "C:\Users\Admin\AppData\Local\Temp\0932062722.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4980
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2395.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1680
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2442.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

0932062722.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\0932062722.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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tmp2395.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2395.tmp
Size 1KB
SHA256 8dcbc15867bdcf94329ea11215cd4624d243ef10cc3f5c6c0a7f956b88bd1911
MD5 205a9290304d1c194178c2ba1b761fcc
SHA1 747edefdcffc8c5d988a848f2ad8455c8d943c49
SHA512 e5c2f2690bc22f0a2e5a661e724d44c3c7a675031e50ef76bae8c9de340a2d33cc44b6f6bd541a46b0a544ea85ac3475f4d5f2d82f411539f756fa1e5b0dadfb
MD5 SHA1 SHA512

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tmp2442.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2442.tmp
Size 1KB
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d
MD5 SHA1 SHA512

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memory/3196-133-0x0000000005350000-0x000000000535A000-memory.dmp

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memory/3196-134-0x00000000075C0000-0x000000000765C000-memory.dmp

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memory/3196-130-0x0000000000860000-0x00000000008F4000-memory.dmp

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memory/3196-132-0x00000000052A0000-0x0000000005332000-memory.dmp

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memory/3196-131-0x00000000057B0000-0x0000000005D54000-memory.dmp

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memory/4980-136-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4980-142-0x0000000006FD0000-0x0000000007036000-memory.dmp

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