nanocore | ca0b72dd185916bb1c9d2d6044a99ac01fcba39f53c80d0dae5b3f3cd5839d03

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
06/05/2022, 16:15

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General

Target
748326efc0ef103c60331bf8966c0c2c.exe
Size 550KB
Sample220506-tp7zmsabc2
SHA256 ca0b72dd185916bb1c9d2d6044a99ac01fcba39f53c80d0dae5b3f3cd5839d03
MD5 748326efc0ef103c60331bf8966c0c2c
SHA1 1bf971383075fd320fb77c2c21681d6abdbd8c85
SHA512 cf1fd7313ebe943e2ac4c42117ca028307d4a77d32de134cb1284f773db58f958d1c50ab68cb6d6a462abe360d46d2db0838c2d5a1fb1a062e75cddd1dc0b7b7
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

surya.ddns.net:50421
185.19.85.175:50421

Mutex

db859f8f-dd41-4cc6-82a2-616a59f8108c

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2022-02-13T19:42:33.329888736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
50421
default_group
0SPEED
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
db859f8f-dd41-4cc6-82a2-616a59f8108c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
surya.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	748326efc0ef103c60331bf8966c0c2c.exe

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"	748326efc0ef103c60331bf8966c0c2c.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	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3048 set thread context of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	748326efc0ef103c60331bf8966c0c2c.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	748326efc0ef103c60331bf8966c0c2c.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
3960	schtasks.exe
1868	schtasks.exe
2432	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3048	748326efc0ef103c60331bf8966c0c2c.exe
2844	748326efc0ef103c60331bf8966c0c2c.exe
2844	748326efc0ef103c60331bf8966c0c2c.exe
2844	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	748326efc0ef103c60331bf8966c0c2c.exe
Token: SeDebugPrivilege	2844	748326efc0ef103c60331bf8966c0c2c.exe
Token: SeDebugPrivilege	2844	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 3960	3048	748326efc0ef103c60331bf8966c0c2c.exe	96
PID 3048 wrote to memory of 3960	3048	748326efc0ef103c60331bf8966c0c2c.exe	96
PID 3048 wrote to memory of 3960	3048	748326efc0ef103c60331bf8966c0c2c.exe	96
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 3048 wrote to memory of 2844	3048	748326efc0ef103c60331bf8966c0c2c.exe	98
PID 2844 wrote to memory of 1868	2844	748326efc0ef103c60331bf8966c0c2c.exe	99
PID 2844 wrote to memory of 1868	2844	748326efc0ef103c60331bf8966c0c2c.exe	99
PID 2844 wrote to memory of 1868	2844	748326efc0ef103c60331bf8966c0c2c.exe	99
PID 2844 wrote to memory of 2432	2844	748326efc0ef103c60331bf8966c0c2c.exe	101
PID 2844 wrote to memory of 2432	2844	748326efc0ef103c60331bf8966c0c2c.exe	101
PID 2844 wrote to memory of 2432	2844	748326efc0ef103c60331bf8966c0c2c.exe	101

C:\Users\Admin\AppData\Local\Temp\748326efc0ef103c60331bf8966c0c2c.exe
"C:\Users\Admin\AppData\Local\Temp\748326efc0ef103c60331bf8966c0c2c.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FzyNDP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E53.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3960
- C:\Users\Admin\AppData\Local\Temp\748326efc0ef103c60331bf8966c0c2c.exe
  "{path}"
  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:2844
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp31ED.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1868
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp326B.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2432

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

748326efc0ef103c60331bf8966c0c2c.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\748326efc0ef103c60331bf8966c0c2c.exe.log
Size 1KB
SHA256 c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553
MD5 17573558c4e714f606f997e5157afaac
SHA1 13e16e9415ceef429aaf124139671ebeca09ed23
SHA512 f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc
MD5 SHA1 SHA512

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tmp2E53.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2E53.tmp
Size 1KB
SHA256 2c24e164dd2319ce140231604834d59fa4d1a1111f28b749e146dd0d94719850
MD5 d2c33cbb7e8ffb2c704ecf588fcbe9f1
SHA1 051619c1acc00b151469b19296d3bd51391ac59f
SHA512 6fcf686545fe9fed1c9c11065f5dc82500dfc9baa7a2927aba1aa1794fee4ae1860a0de19554d297c4315198eba8d579eecbc434880a3315e062a80fccd37586
MD5 SHA1 SHA512

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tmp31ED.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp31ED.tmp
Size 1KB
SHA256 74041a120ccec5d614a23e481825cd7adadbdf097af751020068e87b224aeb81
MD5 b07fa419eaf1d5fe4a1162a6101fc3d7
SHA1 0b27485595597d21c2ad98b1311d72505d29a29b
SHA512 48559036b1e70dd24d6102e275164f8eff78129b007bd7a348b85607ca890d40c83ced4912f59a78371a67b416d86186b5fbe07f82482da9606c4840053f02af
MD5 SHA1 SHA512

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tmp326B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp326B.tmp
Size 1KB
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d
MD5 SHA1 SHA512

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memory/2844-139-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/3048-133-0x00000000055B0000-0x0000000005642000-memory.dmp

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memory/3048-135-0x0000000005740000-0x0000000005796000-memory.dmp

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memory/3048-134-0x0000000005510000-0x000000000551A000-memory.dmp

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memory/3048-130-0x0000000000A40000-0x0000000000AD0000-memory.dmp

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memory/3048-132-0x0000000005AC0000-0x0000000006064000-memory.dmp

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memory/3048-131-0x0000000005450000-0x00000000054EC000-memory.dmp

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