nanocore | cc8c9c2b686ecd3405b08296d2f2da20a5785d02ee932e16ea7a912825a90b60

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20220414-en
submitted
06/05/2022, 16:15

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General

Target
e3132cbe381c92f977d252719317689b.exe
Size 560KB
Sample220506-tp8aeaabc3
SHA256 cc8c9c2b686ecd3405b08296d2f2da20a5785d02ee932e16ea7a912825a90b60
MD5 e3132cbe381c92f977d252719317689b
SHA1 4d689726b436ecf8d3ee1438f8393f7f20f92641
SHA512 7818ca03e1e28a22dd0486c5ed9aa91d4f39962180bb4f22ec1bf16654c33b4afa4d766a2665c6714267bb8ce46045290d906a874b2f62a24c07f4116259ed07
MD5 SHA1 SHA512

Score

10^/10

nanocore 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\DSL Service = "C:\\Program Files (x86)\\DSL Service\\dslsv.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 868 set thread context of 1728	868	e3132cbe381c92f977d252719317689b.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DSL Service\dslsv.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DSL Service\dslsv.exe	RegSvcs.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
832	schtasks.exe
1776	schtasks.exe
1940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
868	e3132cbe381c92f977d252719317689b.exe
1728	RegSvcs.exe
1728	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	868	e3132cbe381c92f977d252719317689b.exe
Token: SeDebugPrivilege	1728	RegSvcs.exe
Token: SeDebugPrivilege	1728	RegSvcs.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 832	868	e3132cbe381c92f977d252719317689b.exe	27
PID 868 wrote to memory of 832	868	e3132cbe381c92f977d252719317689b.exe	27
PID 868 wrote to memory of 832	868	e3132cbe381c92f977d252719317689b.exe	27
PID 868 wrote to memory of 832	868	e3132cbe381c92f977d252719317689b.exe	27
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 868 wrote to memory of 1728	868	e3132cbe381c92f977d252719317689b.exe	29
PID 1728 wrote to memory of 1776	1728	RegSvcs.exe	30
PID 1728 wrote to memory of 1776	1728	RegSvcs.exe	30
PID 1728 wrote to memory of 1776	1728	RegSvcs.exe	30
PID 1728 wrote to memory of 1776	1728	RegSvcs.exe	30
PID 1728 wrote to memory of 1940	1728	RegSvcs.exe	32
PID 1728 wrote to memory of 1940	1728	RegSvcs.exe	32
PID 1728 wrote to memory of 1940	1728	RegSvcs.exe	32
PID 1728 wrote to memory of 1940	1728	RegSvcs.exe	32

C:\Users\Admin\AppData\Local\Temp\e3132cbe381c92f977d252719317689b.exe
"C:\Users\Admin\AppData\Local\Temp\e3132cbe381c92f977d252719317689b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:868
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wVWIsyvwQvps" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE283.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:832
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE9A4.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1776
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEA80.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1940

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

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Downloads

tmpE283.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE283.tmp
Size 1KB
SHA256 9f9fec7f8f0b9060230a71beddd0d56b4799353fde41a1c2d1edeb8197dfb6dd
MD5 f2571d84502b85c95b884b4e48d3ba3b
SHA1 820573f1b52d5390958ee9074ee94655ca7fb5ea
SHA512 fb60613d1917aad7f68044179363560e0ab23fa78fc17a519dc1880b38f5fd39ebf80f89d5ad84ff5a08b96bf01cefb37ab6b4015599f17d6dbba9d255d3c7ea
MD5 SHA1 SHA512

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tmpE9A4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE9A4.tmp
Size 1KB
SHA256 3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c
MD5 8cad1b41587ced0f1e74396794f31d58
SHA1 11054bf74fcf5e8e412768035e4dae43aa7b710f
SHA512 99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef
MD5 SHA1 SHA512

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tmpEA80.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpEA80.tmp
Size 1KB
SHA256 abd73bfca8458750ee751d4c6c106d54dcf0969592f476acc64ab0d7f2bb1978
MD5 afb71a33ece3758f782f052bbe5da94f
SHA1 e69b9070ff52f81fdf01a40f775d021e4b4e71e4
SHA512 22c45992ca358ca9d4605ac426b65903b11b27db1b9c608739245dc412aa256d0908566626b3cfdafb32fca0809bf46c8824ab98cea7b7662216c915e6ef013f
MD5 SHA1 SHA512

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memory/868-57-0x0000000005850000-0x00000000058DE000-memory.dmp

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memory/868-58-0x00000000009D0000-0x0000000000A0A000-memory.dmp

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memory/868-56-0x0000000000330000-0x000000000033A000-memory.dmp

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memory/868-54-0x0000000001100000-0x0000000001192000-memory.dmp

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memory/868-55-0x0000000075D21000-0x0000000075D23000-memory.dmp

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memory/1728-62-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-72-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-64-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-70-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-67-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-82-0x0000000004E75000-0x0000000004E86000-memory.dmp

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memory/1728-65-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-81-0x0000000000AF0000-0x0000000000AFA000-memory.dmp

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memory/1728-61-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/1728-78-0x0000000000490000-0x000000000049A000-memory.dmp

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memory/1728-79-0x0000000000910000-0x000000000091C000-memory.dmp

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memory/1728-80-0x0000000000AD0000-0x0000000000AEE000-memory.dmp

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