nanocore | 1255663f8fbbb4454bc52f2d80bc61ea4b333e3f816272dd3f5efd91f1cf3235

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15/08/2022, 16:08

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General

Target
801bf8ada5a58fd5e27314d170d3936d.exe
Size 702KB
Sample220815-tk8qdachck
SHA256 1255663f8fbbb4454bc52f2d80bc61ea4b333e3f816272dd3f5efd91f1cf3235
MD5 801bf8ada5a58fd5e27314d170d3936d
SHA1 8660a8d6624cb9552f215808e6fd62dad7e5e146
SHA512 bdb3db7dbbcf67ae687ada3546bdd9ee55dcff5e7e431157c78d7ce68b7bea00caf5946234a4c571f3fe2916f13d927fdd320dd011d8783bc93c197da01dab71
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:4032
127.0.0.1:4032

Mutex

b722afc5-f888-4b8f-b8ba-c8145a899107

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-05-14T22:05:32.896588136Z
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
4032
default_group
Jason bourne
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
b722afc5-f888-4b8f-b8ba-c8145a899107
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
jasonbourne.bounceme.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

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\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe"	801bf8ada5a58fd5e27314d170d3936d.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	801bf8ada5a58fd5e27314d170d3936d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DOS Host\doshost.exe	801bf8ada5a58fd5e27314d170d3936d.exe
File opened for modification	C:\Program Files (x86)\DOS Host\doshost.exe	801bf8ada5a58fd5e27314d170d3936d.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
3908	schtasks.exe
4104	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2716	801bf8ada5a58fd5e27314d170d3936d.exe
2716	801bf8ada5a58fd5e27314d170d3936d.exe
2716	801bf8ada5a58fd5e27314d170d3936d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2716	801bf8ada5a58fd5e27314d170d3936d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	801bf8ada5a58fd5e27314d170d3936d.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 4928 wrote to memory of 2716	4928	801bf8ada5a58fd5e27314d170d3936d.exe	78
PID 2716 wrote to memory of 4104	2716	801bf8ada5a58fd5e27314d170d3936d.exe	79
PID 2716 wrote to memory of 4104	2716	801bf8ada5a58fd5e27314d170d3936d.exe	79
PID 2716 wrote to memory of 4104	2716	801bf8ada5a58fd5e27314d170d3936d.exe	79
PID 2716 wrote to memory of 3908	2716	801bf8ada5a58fd5e27314d170d3936d.exe	81
PID 2716 wrote to memory of 3908	2716	801bf8ada5a58fd5e27314d170d3936d.exe	81
PID 2716 wrote to memory of 3908	2716	801bf8ada5a58fd5e27314d170d3936d.exe	81

C:\Users\Admin\AppData\Local\Temp\801bf8ada5a58fd5e27314d170d3936d.exe
"C:\Users\Admin\AppData\Local\Temp\801bf8ada5a58fd5e27314d170d3936d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\Temp\801bf8ada5a58fd5e27314d170d3936d.exe
  "C:\Users\Admin\AppData\Local\Temp\801bf8ada5a58fd5e27314d170d3936d.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:2716
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9A5B.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4104
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9AF9.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3908

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

801bf8ada5a58fd5e27314d170d3936d.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\801bf8ada5a58fd5e27314d170d3936d.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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tmp9A5B.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp9A5B.tmp
Size 1KB
SHA256 adcd50251a6be336cde22aba11da3859810471c4f54fe439d5cbdc8bf3debbee
MD5 9122fcacf4242bec78b01ad49efe8e43
SHA1 20d02a0f7aa17305c2b07fbac8b75dd690fa7468
SHA512 62c9854a36bcdcdaa8e230e4922e3b6fbce3c2a6d83b16e6637ff5165920450a4f9e487f10005bba143d8dea613b3939d22b1fa17e73f977f6168c6356e015b8
MD5 SHA1 SHA512

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tmp9AF9.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp9AF9.tmp
Size 1KB
SHA256 edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3
MD5 e380299eb53398115b7125b2b75c4798
SHA1 ee59b86ea0abf4097ff94bd940521c583803b036
SHA512 d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1
MD5 SHA1 SHA512

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memory/2716-138-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4928-132-0x0000000000CE0000-0x0000000000D96000-memory.dmp

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memory/4928-133-0x0000000005D40000-0x00000000062E4000-memory.dmp

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memory/4928-134-0x0000000005790000-0x0000000005822000-memory.dmp

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memory/4928-135-0x0000000005720000-0x000000000572A000-memory.dmp

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memory/4928-136-0x000000000A6A0000-0x000000000A73C000-memory.dmp

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