nanocore | ca0b72dd185916bb1c9d2d6044a99ac01fcba39f53c80d0dae5b3f3cd5839d03

Analysis

max time kernel
144s
max time network
150s
platform
windows7_x64
resource
win7-20220414-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

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 Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.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 1528 set thread context of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	748326efc0ef103c60331bf8966c0c2c.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.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
2012	schtasks.exe
320	schtasks.exe
1824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1528	748326efc0ef103c60331bf8966c0c2c.exe
1980	748326efc0ef103c60331bf8966c0c2c.exe
1980	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1980	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	748326efc0ef103c60331bf8966c0c2c.exe
Token: SeDebugPrivilege	1980	748326efc0ef103c60331bf8966c0c2c.exe
Token: SeDebugPrivilege	1980	748326efc0ef103c60331bf8966c0c2c.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1528 wrote to memory of 2012	1528	748326efc0ef103c60331bf8966c0c2c.exe	28
PID 1528 wrote to memory of 2012	1528	748326efc0ef103c60331bf8966c0c2c.exe	28
PID 1528 wrote to memory of 2012	1528	748326efc0ef103c60331bf8966c0c2c.exe	28
PID 1528 wrote to memory of 2012	1528	748326efc0ef103c60331bf8966c0c2c.exe	28
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1528 wrote to memory of 1980	1528	748326efc0ef103c60331bf8966c0c2c.exe	30
PID 1980 wrote to memory of 320	1980	748326efc0ef103c60331bf8966c0c2c.exe	31
PID 1980 wrote to memory of 320	1980	748326efc0ef103c60331bf8966c0c2c.exe	31
PID 1980 wrote to memory of 320	1980	748326efc0ef103c60331bf8966c0c2c.exe	31
PID 1980 wrote to memory of 320	1980	748326efc0ef103c60331bf8966c0c2c.exe	31
PID 1980 wrote to memory of 1824	1980	748326efc0ef103c60331bf8966c0c2c.exe	33
PID 1980 wrote to memory of 1824	1980	748326efc0ef103c60331bf8966c0c2c.exe	33
PID 1980 wrote to memory of 1824	1980	748326efc0ef103c60331bf8966c0c2c.exe	33
PID 1980 wrote to memory of 1824	1980	748326efc0ef103c60331bf8966c0c2c.exe	33

C:\Users\Admin\AppData\Local\Temp\748326efc0ef103c60331bf8966c0c2c.exe
"C:\Users\Admin\AppData\Local\Temp\748326efc0ef103c60331bf8966c0c2c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FzyNDP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp786B.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2012
- 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:1980
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8805.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:320
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8C79.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1824

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

tmp786B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp786B.tmp
Size 1KB
SHA256 c4dd5d8ace4f5886f6636667847e2c93701be58125725d9801a6eb6668904fc2
MD5 b6d20f82a6cffc55b50f7f0e97569aac
SHA1 d4285e8543a70a4ee8430adb6dea12de6636e99d
SHA512 96348a4c54e1e66dc333fefc1f1fb1a64b1eff9a934698fd9987f7a101498242c40d47f231be6919b91516837fe36198ed543ec0b5819593e8d035c9e82e0e99
MD5 SHA1 SHA512

Submit Download

tmp8805.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8805.tmp
Size 1KB
SHA256 74041a120ccec5d614a23e481825cd7adadbdf097af751020068e87b224aeb81
MD5 b07fa419eaf1d5fe4a1162a6101fc3d7
SHA1 0b27485595597d21c2ad98b1311d72505d29a29b
SHA512 48559036b1e70dd24d6102e275164f8eff78129b007bd7a348b85607ca890d40c83ced4912f59a78371a67b416d86186b5fbe07f82482da9606c4840053f02af
MD5 SHA1 SHA512

Submit Download

tmp8C79.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8C79.tmp
Size 1KB
SHA256 84b6ce4ba26fa6fb57fa70b9ad191f7c42c71e259897955b5d514385bcd91b58
MD5 4365cd1ae65923a319ef2683a45891fe
SHA1 85dde233112660e31c53884aedfbad52e4547e09
SHA512 d1bd24f504c5c2ecaa3ae98268ccc2e400ea3e16980c6caf394eadf7738225e4d5578fbe62bbe2de3fe0cb56a0d76bb3fc84cef3b9cd2f3d8be6d0becefdc035
MD5 SHA1 SHA512

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memory/1528-54-0x0000000000AD0000-0x0000000000B60000-memory.dmp

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memory/1528-55-0x0000000075C51000-0x0000000075C53000-memory.dmp

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memory/1528-56-0x0000000000220000-0x000000000022A000-memory.dmp

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memory/1528-57-0x00000000051E0000-0x000000000526C000-memory.dmp

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memory/1528-58-0x00000000005B0000-0x00000000005EA000-memory.dmp

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memory/1980-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-67-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-70-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-72-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1980-78-0x0000000000460000-0x000000000046A000-memory.dmp

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memory/1980-79-0x0000000000470000-0x000000000047C000-memory.dmp

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memory/1980-80-0x00000000004D0000-0x00000000004EE000-memory.dmp

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memory/1980-81-0x00000000004F0000-0x00000000004FA000-memory.dmp

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