nanocore | 1302f5e3adf49a1827d736242241df0fe0cc22175c423d7f44bddf558f7981ea

Analysis

max time kernel
167s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
02/08/2022, 01:01

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General

Target
Receipt.exe
Size 754KB
Sample220802-bc75rsdhfr
SHA256 1302f5e3adf49a1827d736242241df0fe0cc22175c423d7f44bddf558f7981ea
MD5 877a092310cb40ac57ea77d32b891ef1
SHA1 455ffe89d1e420b3327b6dafece03fa77931ac54
SHA512 2f6ca7c63b01edd42eeea1d225867616744ae00809af45ab2315d9f8475349487564e7189762ee41621991338fa9dabc93715a372acd3eccaf7c456da16d0fb8
MD5 SHA1 SHA512

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

makeke.ddns.net:3100
127.0.0.1:3100

Mutex

c27b2057-b363-42e7-badc-46811cd2e471

Attributes

activate_away_mode
false
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-21T19:22:28.371643536Z
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
3100
default_group
Default
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
c27b2057-b363-42e7-badc-46811cd2e471
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
makeke.ddns.net
primary_dns_server
8.8.8.8
request_elevation
false
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
8000

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-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	Receipt.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\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4304 set thread context of 1924	4304	Receipt.exe	95

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ARP Host\arphost.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\ARP Host\arphost.exe	MSBuild.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
3468	schtasks.exe
1768	schtasks.exe
3872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4304	Receipt.exe
4304	Receipt.exe
4304	Receipt.exe
1924	MSBuild.exe
1924	MSBuild.exe
1924	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1924	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4304	Receipt.exe
Token: SeDebugPrivilege	1924	MSBuild.exe
Token: SeDebugPrivilege	1924	MSBuild.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4304 wrote to memory of 3468	4304	Receipt.exe	92
PID 4304 wrote to memory of 3468	4304	Receipt.exe	92
PID 4304 wrote to memory of 3468	4304	Receipt.exe	92
PID 4304 wrote to memory of 4272	4304	Receipt.exe	94
PID 4304 wrote to memory of 4272	4304	Receipt.exe	94
PID 4304 wrote to memory of 4272	4304	Receipt.exe	94
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 4304 wrote to memory of 1924	4304	Receipt.exe	95
PID 1924 wrote to memory of 1768	1924	MSBuild.exe	96
PID 1924 wrote to memory of 1768	1924	MSBuild.exe	96
PID 1924 wrote to memory of 1768	1924	MSBuild.exe	96
PID 1924 wrote to memory of 3872	1924	MSBuild.exe	98
PID 1924 wrote to memory of 3872	1924	MSBuild.exe	98
PID 1924 wrote to memory of 3872	1924	MSBuild.exe	98

C:\Users\Admin\AppData\Local\Temp\Receipt.exe
"C:\Users\Admin\AppData\Local\Temp\Receipt.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4304
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lQyuTLgg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp45A4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3468
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:4272
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.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:1924
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4B51.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1768
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4BFE.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3872

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

tmp45A4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp45A4.tmp
Size 1KB
SHA256 e8a3c7c684137d161bcfcd1271e8d28c7ffc9171413560583dcd49dd04045e19
MD5 b02b9695ef8dea90e707d6ae2ead793c
SHA1 d87723adacc275746de7fb3d161438d94e28e37d
SHA512 54badef87658c6981daecf61d2a816fc74535a09cf23c638d8acca32521f70a6bd1db3660204c833f393c8467755b2be58f5537a11d6f887d5d816bb88ff7e64
MD5 SHA1 SHA512

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tmp4B51.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4B51.tmp
Size 1KB
SHA256 108be30aeb8eb31c185a39a6726f26dacbc4e4124951c61a29ade4b7038c71ea
MD5 3e2b26ed8b75ae83a269595180e84ef6
SHA1 d30a0335fcce406bca8ba5764288235e6192f608
SHA512 b6981c68fcb886cc8379a068b96931b9d4f5cc5aa9bdc467e36c4168fe6c5273a2a84d8850b12c11703ec03ac6b1f1950d1e669efcb59fc2402ce4bba9dc03d3
MD5 SHA1 SHA512

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tmp4BFE.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp4BFE.tmp
Size 1KB
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327
MD5 SHA1 SHA512

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memory/1924-139-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4304-134-0x0000000004D00000-0x0000000004D0A000-memory.dmp

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memory/4304-130-0x00000000002B0000-0x0000000000372000-memory.dmp

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memory/4304-133-0x0000000004DE0000-0x0000000004E7C000-memory.dmp

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memory/4304-132-0x0000000004D40000-0x0000000004DD2000-memory.dmp

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memory/4304-131-0x00000000052F0000-0x0000000005894000-memory.dmp

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