nanocore | c8fb2b38dee96b9bf7b199c9ac198238826b00b48d00048e64f54656a814535c

Analysis

max time kernel
90s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
08/07/2022, 01:06

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General

Target
9df58eca73204b3afcd1c16131a37f19.exe
Size 650KB
Sample220708-bf3pfsbeej
SHA256 c8fb2b38dee96b9bf7b199c9ac198238826b00b48d00048e64f54656a814535c
MD5 9df58eca73204b3afcd1c16131a37f19
SHA1 bb7a94efc1656268a2e0581177b286b48cf77982
SHA512 b365243a0778bba7ed3a6cfe05ed6481bc826e1ba8f26c6c8e78f0608555b14b47dbe6d900c45049864d8c2d89dc36bea525ce37269ecc9d6a8438386241b946
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:7687
127.0.0.1:7687

Mutex

72ab264d-1f8c-4194-b177-fb1e2f9d432c

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-17T07:45:07.376531736Z
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
7687
default_group
NewAge
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
72ab264d-1f8c-4194-b177-fb1e2f9d432c
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
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"	9df58eca73204b3afcd1c16131a37f19.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	9df58eca73204b3afcd1c16131a37f19.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4932 set thread context of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Monitor\wpamon.exe	9df58eca73204b3afcd1c16131a37f19.exe
File opened for modification	C:\Program Files (x86)\WPA Monitor\wpamon.exe	9df58eca73204b3afcd1c16131a37f19.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
4876	schtasks.exe
4668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4608	9df58eca73204b3afcd1c16131a37f19.exe
4608	9df58eca73204b3afcd1c16131a37f19.exe
4608	9df58eca73204b3afcd1c16131a37f19.exe
4608	9df58eca73204b3afcd1c16131a37f19.exe
4608	9df58eca73204b3afcd1c16131a37f19.exe
4608	9df58eca73204b3afcd1c16131a37f19.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4608	9df58eca73204b3afcd1c16131a37f19.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4608	9df58eca73204b3afcd1c16131a37f19.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4932 wrote to memory of 4608	4932	9df58eca73204b3afcd1c16131a37f19.exe	92
PID 4608 wrote to memory of 4876	4608	9df58eca73204b3afcd1c16131a37f19.exe	93
PID 4608 wrote to memory of 4876	4608	9df58eca73204b3afcd1c16131a37f19.exe	93
PID 4608 wrote to memory of 4876	4608	9df58eca73204b3afcd1c16131a37f19.exe	93
PID 4608 wrote to memory of 4668	4608	9df58eca73204b3afcd1c16131a37f19.exe	95
PID 4608 wrote to memory of 4668	4608	9df58eca73204b3afcd1c16131a37f19.exe	95
PID 4608 wrote to memory of 4668	4608	9df58eca73204b3afcd1c16131a37f19.exe	95

C:\Users\Admin\AppData\Local\Temp\9df58eca73204b3afcd1c16131a37f19.exe
"C:\Users\Admin\AppData\Local\Temp\9df58eca73204b3afcd1c16131a37f19.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Users\Admin\AppData\Local\Temp\9df58eca73204b3afcd1c16131a37f19.exe
  "C:\Users\Admin\AppData\Local\Temp\9df58eca73204b3afcd1c16131a37f19.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:4608
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8916.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4876
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp89F1.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4668

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

9df58eca73204b3afcd1c16131a37f19.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\9df58eca73204b3afcd1c16131a37f19.exe.log
Size 1KB
SHA256 555433299641100efeaaa819ca6c261d12dd9b265916606ce6644e8abda57b1f
MD5 2b66f4402c5eccd587ec481a4d8bcc6a
SHA1 3913c42aa261156684a1efd83f94c590412064b7
SHA512 3fa690b02e3a61255546a91bb48369616bc7bb69e4f846e0a8bdae60058be5aba40665fe1bdb6debc784c77efcf5d7a17b1f91691fb396cbf79ad36dd207a8cb
MD5 SHA1 SHA512

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tmp8916.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8916.tmp
Size 1KB
SHA256 f237f82912a366ff89872a99b1201c58fbed48986ec61dcdfbc94f3ce8ba0b9e
MD5 bafd59f613c614b635a508fdf833455a
SHA1 a9f9b9bc940ef2e9484ee7f4374a063f8e8bb42b
SHA512 345f098a1191c5bf6de58007277930f0d646c0e91b5fd7522193740e9bf296ca4af7a1e2eb8464adca91cf9122490eedd15c98e8d82b4b56bcc8694cd0c04702
MD5 SHA1 SHA512

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tmp89F1.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp89F1.tmp
Size 1KB
SHA256 6abae7707b06e52b58f537b335e367cc54b093e899d78f16e94ceaf7ceafca52
MD5 a246b3561d823177f3586e629f144233
SHA1 0f05d12e55a1d2e5e6a4f307c193882fba093315
SHA512 4246aa9a96331e2c7e36b37fa778e31ecae055c77164e0dc673aa50cdec368f08d356ab06ef1a4540816c474828048ab1bebed7e211a4eb929f2918e1fac9c6d
MD5 SHA1 SHA512

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memory/4608-137-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4932-135-0x00000000087F0000-0x0000000008856000-memory.dmp

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memory/4932-134-0x00000000086E0000-0x000000000877C000-memory.dmp

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memory/4932-130-0x00000000004D0000-0x0000000000578000-memory.dmp

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memory/4932-133-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

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memory/4932-132-0x0000000004E50000-0x0000000004EE2000-memory.dmp

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memory/4932-131-0x0000000005550000-0x0000000005AF4000-memory.dmp

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