nanocore | 3ffba67572a1f48765eb9f038ef74d34a1c0546cc95388dd2432c3f9ceba429e

General

Target

cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
Size

1.0MB
MD5

cd74673783e32ef84599498080dbe6d9
SHA1

612786d7bf921f1d4c99577fcf5b5e422b9e25f0
SHA256

3ffba67572a1f48765eb9f038ef74d34a1c0546cc95388dd2432c3f9ceba429e
SHA512

7334cda1b7afd4691cbcf20062b54da1c131cf5aee0b33fd3861f32cfb9ee6d31e77ef665a2019b9ae96b398d46910e81f1b27502fcab2605d100496c3d9d20a
SSDEEP

24576:rAOcZAhh3iCywrS1PzIqmqq3XFQYcqa6lCKCZ/:tdy/zjbWX6KtM

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

strongodss.ddns.net:48562

185.19.85.175:48562

Mutex

ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2021-04-20T00:12:13.961451136Z
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
48562
default_group
HOBBIT
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
ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
strongodss.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
Nanocore family
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1224	mtcxfokr.pif
3952	RegSvcs.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Service = "C:\\Program Files (x86)\\LAN Service\\lansv.exe"	RegSvcs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "C:\\Users\\Admin\\AppData\\Roaming\\29986083\\mtcxfokr.pif C:\\Users\\Admin\\AppData\\Roaming\\29986083\\fbpmfhh.crj"	mtcxfokr.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\29986083\\Update.vbs"	mtcxfokr.pif

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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1224 set thread context of 3952	1224	mtcxfokr.pif	86

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LAN Service\lansv.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\LAN Service\lansv.exe	RegSvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtcxfokr.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2616	schtasks.exe
1828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3952	RegSvcs.exe
3952	RegSvcs.exe
3952	RegSvcs.exe
3952	RegSvcs.exe
3952	RegSvcs.exe
3952	RegSvcs.exe
3952	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3952	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3952	RegSvcs.exe
Token: SeDebugPrivilege	3952	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 1224	4884	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	83
PID 4884 wrote to memory of 1224	4884	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	83
PID 4884 wrote to memory of 1224	4884	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	83
PID 1224 wrote to memory of 3952	1224	mtcxfokr.pif	86
PID 1224 wrote to memory of 3952	1224	mtcxfokr.pif	86
PID 1224 wrote to memory of 3952	1224	mtcxfokr.pif	86
PID 1224 wrote to memory of 3952	1224	mtcxfokr.pif	86
PID 1224 wrote to memory of 3952	1224	mtcxfokr.pif	86
PID 3952 wrote to memory of 2616	3952	RegSvcs.exe	87
PID 3952 wrote to memory of 2616	3952	RegSvcs.exe	87
PID 3952 wrote to memory of 2616	3952	RegSvcs.exe	87
PID 3952 wrote to memory of 1828	3952	RegSvcs.exe	89
PID 3952 wrote to memory of 1828	3952	RegSvcs.exe	89
PID 3952 wrote to memory of 1828	3952	RegSvcs.exe	89

C:\Users\Admin\AppData\Local\Temp\cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4884
- C:\Users\Admin\AppData\Roaming\29986083\mtcxfokr.pif
  "C:\Users\Admin\AppData\Roaming\29986083\mtcxfokr.pif" fbpmfhh.crj
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Checks whether UAC is enabled
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3952
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB17D.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2616
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB1FB.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe

Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB17D.tmp

Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB1FB.tmp

Filesize
1KB

MD5
6b30dba7972c92c9a1b881e88c108b15

SHA1
f76207985cc5a1f70edb2fb5bd45678f195a4564

SHA256
578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

SHA512
e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

Download Submit
C:\Users\Admin\AppData\Roaming\29986083\krmgtuwoiu.dll

Filesize
469KB

MD5
ccd68ca737155fc6fb16ac2acc63337f

SHA1
65be976793f3a71658c79d38ff301c5c36a9acf1

SHA256
4334645e2da2776ecc0d9ec7c27180e7752cb21746c7d8f7b9cd38ffb4d2f3ef

SHA512
16747acbe59650f9fdd55272169ced8bb7aba221ee9ee83e99ebae6ed630db4abd84d504c06f3f18f503abbe7b1a209d03af0923f22a525b13edff2bdc32f445

Download Submit
C:\Users\Admin\AppData\Roaming\29986083\mtcxfokr.pif

Filesize
646KB

MD5
cdbb08d4234736c4a052dc3f181e66f2

SHA1
6801a805b6dcb760e8bf399a7d3ad0489fec7bfb

SHA256
07e5f6d7ec7ccbc3d742658e9161d799934c6f7f6a3ebf560f361b4ee1730b6a

SHA512
1ebd1a546e64d4b36d4f143ff7211d953f8db8e74c739db5e9c0939a6eb010a461fd1368f8a7813a8a2da804de6993010075ac21e4917d74d3f9394eaebafdfb

Download Submit
memory/3952-80-0x0000000005740000-0x00000000057DC000-memory.dmp

Filesize
624KB

Download
memory/3952-78-0x0000000005C50000-0x00000000061F4000-memory.dmp

Filesize
5.6MB

Download
memory/3952-79-0x00000000056A0000-0x0000000005732000-memory.dmp

Filesize
584KB

Download
memory/3952-77-0x0000000000990000-0x00000000009CA000-memory.dmp

Filesize
232KB

Download
memory/3952-81-0x0000000005660000-0x000000000566A000-memory.dmp

Filesize
40KB

Download
memory/3952-76-0x000000007299E000-0x000000007299F000-memory.dmp

Filesize
4KB

Download
memory/3952-73-0x0000000000990000-0x0000000000EC9000-memory.dmp

Filesize
5.2MB

Download
memory/3952-89-0x0000000005870000-0x000000000587A000-memory.dmp

Filesize
40KB

Download
memory/3952-90-0x0000000005880000-0x000000000588C000-memory.dmp

Filesize
48KB

Download
memory/3952-91-0x0000000006780000-0x000000000679E000-memory.dmp

Filesize
120KB

Download
memory/3952-92-0x0000000005A20000-0x0000000005A2A000-memory.dmp

Filesize
40KB

Download
memory/3952-93-0x000000007299E000-0x000000007299F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads