nanocore | e62cf9d91a1eb2f7f136ae69bc3c6249bf69e25e5797069241e09e6d5d9834e9

General

Target

4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe
Size

765KB
MD5

4bd9f6838217475367f4750c7ccd1947
SHA1

e3263abd5c1295c48ecfced1cee8329fb9c4265e
SHA256

e62cf9d91a1eb2f7f136ae69bc3c6249bf69e25e5797069241e09e6d5d9834e9
SHA512

3166bbb50d75380c1e146e8d0bdce434e6d365d779ee7add4687920898d6fa36c243de1e451502fcf5deac67e93b2b9b7163389033a4e3535ce2a1d71d7cc7e3
SSDEEP

12288:OR52iNeHK7z1bBLRXVOFMRJMM2Lcmt7vtXPToGYX1IzkuHfFuQs5rauiRVpb:21bhte+HqDfXP0GYFIzFHfFoTY

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.98.52:2303

127.0.0.1:2303

Mutex

47fccab7-b2e4-4386-ae4c-8610c25adecb

Attributes

activate_away_mode
false
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-05-21T12:28:36.512291536Z
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
2303
default_group
nanofile
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
true
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
47fccab7-b2e4-4386-ae4c-8610c25adecb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
194.5.98.52
primary_dns_server
8.8.8.8
request_elevation
false
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

MSBuild.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Manager = "C:\\Program Files (x86)\\DHCP Manager\\dhcpmgr.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2316 set thread context of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	MSBuild.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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

Processes:

MSBuild.exeschtasks.exeschtasks.exe4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.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

Processes:

schtasks.exeschtasks.exe

pid	Process
2884	schtasks.exe
2100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

MSBuild.exe

pid	Process
2648	MSBuild.exe
2648	MSBuild.exe
2648	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid	Process
2648	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description	pid	Process
Token: SeDebugPrivilege	2648	MSBuild.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exeMSBuild.exe

description	pid	Process	procid_target
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2648	2316	4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe	31
PID 2648 wrote to memory of 2884	2648	MSBuild.exe	32
PID 2648 wrote to memory of 2884	2648	MSBuild.exe	32
PID 2648 wrote to memory of 2884	2648	MSBuild.exe	32
PID 2648 wrote to memory of 2884	2648	MSBuild.exe	32
PID 2648 wrote to memory of 2100	2648	MSBuild.exe	34
PID 2648 wrote to memory of 2100	2648	MSBuild.exe	34
PID 2648 wrote to memory of 2100	2648	MSBuild.exe	34
PID 2648 wrote to memory of 2100	2648	MSBuild.exe	34

C:\Users\Admin\AppData\Local\Temp\4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4bd9f6838217475367f4750c7ccd1947_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
  2⤵
  - Adds Run key to start application
  - 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:2648
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp538C.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2884
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp53FB.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2100

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 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\tmp538C.tmp

Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp53FB.tmp

Filesize
1KB

MD5
cdf5683344404764a0f3592e9db8a5a1

SHA1
6705943b404de237cdd7080c05af25e2b1b6410c

SHA256
1ea0af7c86be3e61c281ada0470c6dcf178834380def1903b5bb78b49440ffff

SHA512
23c56873ca8520784cc1d6b0b4211b373fff6fb429872932e5274801d3b9d786566877cd16d1ffa0adca8c7aebb0b935701a0c071073edfbdb319002f99a182b

Download Submit
memory/2316-22-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2316-1-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2316-2-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2316-3-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2316-4-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2316-0-0x0000000074A51000-0x0000000074A52000-memory.dmp

Filesize
4KB

Download
memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-20-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-21-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-30-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-31-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-32-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-33-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/2648-34-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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