nanocore | 1302f5e3adf49a1827d736242241df0fe0cc22175c423d7f44bddf558f7981ea

Analysis

max time kernel
148s
max time network
134s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-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

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\PCI Service = "C:\\Program Files (x86)\\PCI Service\\pcisv.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 1032	1940	Receipt.exe	29

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\PCI Service\pcisv.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\PCI Service\pcisv.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
840	schtasks.exe
1068	schtasks.exe
1744	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1940	Receipt.exe
1032	MSBuild.exe
1032	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1032	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	Receipt.exe
Token: SeDebugPrivilege	1032	MSBuild.exe
Token: SeDebugPrivilege	1032	MSBuild.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 840	1940	Receipt.exe	27
PID 1940 wrote to memory of 840	1940	Receipt.exe	27
PID 1940 wrote to memory of 840	1940	Receipt.exe	27
PID 1940 wrote to memory of 840	1940	Receipt.exe	27
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1940 wrote to memory of 1032	1940	Receipt.exe	29
PID 1032 wrote to memory of 1068	1032	MSBuild.exe	30
PID 1032 wrote to memory of 1068	1032	MSBuild.exe	30
PID 1032 wrote to memory of 1068	1032	MSBuild.exe	30
PID 1032 wrote to memory of 1068	1032	MSBuild.exe	30
PID 1032 wrote to memory of 1744	1032	MSBuild.exe	32
PID 1032 wrote to memory of 1744	1032	MSBuild.exe	32
PID 1032 wrote to memory of 1744	1032	MSBuild.exe	32
PID 1032 wrote to memory of 1744	1032	MSBuild.exe	32

C:\Users\Admin\AppData\Local\Temp\Receipt.exe
"C:\Users\Admin\AppData\Local\Temp\Receipt.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lQyuTLgg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8509.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:840
- 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:1032
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp893D.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1068
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8A38.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1744

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

tmp8509.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8509.tmp
Size 1KB
SHA256 603c55c9c36e9ca8d79149cc1e65ec79722597fe44e2780247cbe40d6915dba7
MD5 18e57b233845ef7e371fcdd334b312a8
SHA1 48313e1baa227558bdd294287f7b1750814a3d9d
SHA512 1fbb3247d28111b114b705dfbf17b9e45517c138c196dc10b768872e7839645ec9f47df9245774a0346dec4ea1772cfd29e1e673cf3aa916c2e92914e5278658
MD5 SHA1 SHA512

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tmp893D.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp893D.tmp
Size 1KB
SHA256 108be30aeb8eb31c185a39a6726f26dacbc4e4124951c61a29ade4b7038c71ea
MD5 3e2b26ed8b75ae83a269595180e84ef6
SHA1 d30a0335fcce406bca8ba5764288235e6192f608
SHA512 b6981c68fcb886cc8379a068b96931b9d4f5cc5aa9bdc467e36c4168fe6c5273a2a84d8850b12c11703ec03ac6b1f1950d1e669efcb59fc2402ce4bba9dc03d3
MD5 SHA1 SHA512

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tmp8A38.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8A38.tmp
Size 1KB
SHA256 08d6bee474edf0151a0d8ff942ba9e6a1efe069585c63477abd1c7bd8046e130
MD5 bbb0d424bb7cb3b0e6aeb68cf82b8f5f
SHA1 7e95dcd21a27ee53e5c23ed5a163df56a43d572a
SHA512 0dc790a415f9717f6e7633c1d5f2749a2eca5582c5bbe114119c3ddba6d4e4d0df48029622e2fe07f94d8ae97c334b88691b7721da50ada261449769ae31d466
MD5 SHA1 SHA512

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memory/1032-65-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-70-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-81-0x0000000004D85000-0x0000000004D96000-memory.dmp

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memory/1032-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-62-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-80-0x0000000000A80000-0x0000000000A8A000-memory.dmp

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memory/1032-67-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-79-0x00000000009B0000-0x00000000009CE000-memory.dmp

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memory/1032-72-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1032-78-0x00000000009A0000-0x00000000009AA000-memory.dmp

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memory/1940-56-0x00000000003F0000-0x00000000003FA000-memory.dmp

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memory/1940-55-0x00000000762A1000-0x00000000762A3000-memory.dmp

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memory/1940-58-0x0000000000540000-0x000000000057C000-memory.dmp

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memory/1940-54-0x00000000001A0000-0x0000000000262000-memory.dmp

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memory/1940-57-0x0000000005510000-0x000000000559E000-memory.dmp

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