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

Executes dropped EXE 2 IoCs

pid	Process
2200	mtcxfokr.pif
2696	RegSvcs.exe

Loads dropped DLL 5 IoCs

pid	Process
1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
2200	mtcxfokr.pif

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\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DSL Manager = "C:\\Program Files (x86)\\DSL Manager\\dslmgr.exe"	RegSvcs.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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2200 set thread context of 2696	2200	mtcxfokr.pif	32

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DSL Manager\dslmgr.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DSL Manager\dslmgr.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
1188	schtasks.exe
3032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2696	RegSvcs.exe
2696	RegSvcs.exe
2696	RegSvcs.exe
2696	RegSvcs.exe
2696	RegSvcs.exe
2696	RegSvcs.exe
2696	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2696	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2696	RegSvcs.exe
Token: SeDebugPrivilege	2696	RegSvcs.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 2200	1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	31
PID 1248 wrote to memory of 2200	1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	31
PID 1248 wrote to memory of 2200	1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	31
PID 1248 wrote to memory of 2200	1248	cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe	31
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2200 wrote to memory of 2696	2200	mtcxfokr.pif	32
PID 2696 wrote to memory of 1188	2696	RegSvcs.exe	33
PID 2696 wrote to memory of 1188	2696	RegSvcs.exe	33
PID 2696 wrote to memory of 1188	2696	RegSvcs.exe	33
PID 2696 wrote to memory of 1188	2696	RegSvcs.exe	33
PID 2696 wrote to memory of 3032	2696	RegSvcs.exe	35
PID 2696 wrote to memory of 3032	2696	RegSvcs.exe	35
PID 2696 wrote to memory of 3032	2696	RegSvcs.exe	35
PID 2696 wrote to memory of 3032	2696	RegSvcs.exe	35

C:\Users\Admin\AppData\Local\Temp\cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cd74673783e32ef84599498080dbe6d9_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Roaming\29986083\mtcxfokr.pif
  "C:\Users\Admin\AppData\Roaming\29986083\mtcxfokr.pif" fbpmfhh.crj
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2200
- - 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:2696
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DSL Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDF19.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1188
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DSL Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE042.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3032

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

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDF19.tmp

Filesize
1KB

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE042.tmp

Filesize
1KB

MD5
a0bcaf1694d4fcae2c44258530850f35

SHA1
99e9ccea3a9dca8d94808f6488fdc37c0b3bfe73

SHA256
099c4a82d8e8ddf5ff801a8f08fb5a143834506e936ce846b380a42eb24e888e

SHA512
ad3f2fbc09f7d57c24a35a62f00251c93d480e065f3b7fbc7133736cb144a3031fdc9f3e8be8a1c6dcdb8b3def654618faab416f66a28628ab71e55de4df0da3

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

Filesize
469KB

MD5
ccd68ca737155fc6fb16ac2acc63337f

SHA1
65be976793f3a71658c79d38ff301c5c36a9acf1

SHA256
4334645e2da2776ecc0d9ec7c27180e7752cb21746c7d8f7b9cd38ffb4d2f3ef

SHA512
16747acbe59650f9fdd55272169ced8bb7aba221ee9ee83e99ebae6ed630db4abd84d504c06f3f18f503abbe7b1a209d03af0923f22a525b13edff2bdc32f445

Download Submit
\Users\Admin\AppData\Local\Temp\RegSvcs.exe

Filesize
44KB

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

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

Filesize
646KB

MD5
cdbb08d4234736c4a052dc3f181e66f2

SHA1
6801a805b6dcb760e8bf399a7d3ad0489fec7bfb

SHA256
07e5f6d7ec7ccbc3d742658e9161d799934c6f7f6a3ebf560f361b4ee1730b6a

SHA512
1ebd1a546e64d4b36d4f143ff7211d953f8db8e74c739db5e9c0939a6eb010a461fd1368f8a7813a8a2da804de6993010075ac21e4917d74d3f9394eaebafdfb

Download Submit
memory/2696-84-0x0000000000250000-0x0000000000809000-memory.dmp

Filesize
5.7MB

Download
memory/2696-86-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-87-0x0000000000250000-0x0000000000809000-memory.dmp

Filesize
5.7MB

Download
memory/2696-92-0x0000000000250000-0x000000000028A000-memory.dmp

Filesize
232KB

Download
memory/2696-90-0x0000000000250000-0x0000000000809000-memory.dmp

Filesize
5.7MB

Download
memory/2696-89-0x0000000000250000-0x0000000000809000-memory.dmp

Filesize
5.7MB

Download
memory/2696-100-0x0000000000B50000-0x0000000000B5A000-memory.dmp

Filesize
40KB

Download
memory/2696-101-0x0000000000BA0000-0x0000000000BAC000-memory.dmp

Filesize
48KB

Download
memory/2696-102-0x0000000000BB0000-0x0000000000BCE000-memory.dmp

Filesize
120KB

Download
memory/2696-103-0x0000000000C70000-0x0000000000C7A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads