nanocore | 0102fefc6debe03fac9211a27bceb1f13a08592df8ffde3892200fc86c7cfe91

General

Target

56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
Size

537KB
MD5

56577375f37b4f1e49325708189e431c
SHA1

69ed11dcc1acfe47d419ddcc1b15c8df100745c9
SHA256

0102fefc6debe03fac9211a27bceb1f13a08592df8ffde3892200fc86c7cfe91
SHA512

eee3a89cb9628638a15301dc727fbcd0455d97ca38f1b847cffa7aab1b0e1adccc13a9ee16c9a6e009e112db8c7b87d34d7ed8f9977faf6484dc44c7c53ce76e
SSDEEP

12288:/32WqNf63J+UKxLm5ogdaSeKdCokbc5K:eeY1m5o9SPCokQ5K

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

office1.servemp3.com:2017

Mutex

d87de095-b054-44d3-a032-be422776e3c0

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-07-04T08:30:05.657848036Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
2017
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
d87de095-b054-44d3-a032-be422776e3c0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
office1.servemp3.com
primary_dns_server
8.8.8.8
request_elevation
true
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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

56577375f37b4f1e49325708189e431c_JaffaCakes118.exe

description pid process target process

PID 4292 set thread context of 1856 4292 56577375f37b4f1e49325708189e431c_JaffaCakes118.exe MSBuild.exe

description	pid	process	target process
PID 4292 set thread context of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\TCP Service\tcpsv.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsv.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:

56577375f37b4f1e49325708189e431c_JaffaCakes118.exeMSBuild.exeschtasks.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
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

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

1228 schtasks.exe
3588 schtasks.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

56577375f37b4f1e49325708189e431c_JaffaCakes118.exeMSBuild.exe

pid process

4292 56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
1856 MSBuild.exe
1856 MSBuild.exe
1856 MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

1856 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

56577375f37b4f1e49325708189e431c_JaffaCakes118.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 4292 56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
Token: SeDebugPrivilege 1856 MSBuild.exe

pid	process
1228	schtasks.exe
3588	schtasks.exe

pid	process
4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
1856	MSBuild.exe
1856	MSBuild.exe
1856	MSBuild.exe

pid	process
1856	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
Token: SeDebugPrivilege	1856	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

56577375f37b4f1e49325708189e431c_JaffaCakes118.exeMSBuild.exe

description	pid	process	target process
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 4292 wrote to memory of 1856	4292	56577375f37b4f1e49325708189e431c_JaffaCakes118.exe	MSBuild.exe
PID 1856 wrote to memory of 1228	1856	MSBuild.exe	schtasks.exe
PID 1856 wrote to memory of 1228	1856	MSBuild.exe	schtasks.exe
PID 1856 wrote to memory of 1228	1856	MSBuild.exe	schtasks.exe
PID 1856 wrote to memory of 3588	1856	MSBuild.exe	schtasks.exe
PID 1856 wrote to memory of 3588	1856	MSBuild.exe	schtasks.exe
PID 1856 wrote to memory of 3588	1856	MSBuild.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\56577375f37b4f1e49325708189e431c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\56577375f37b4f1e49325708189e431c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4292

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:1856

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp94F8.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:1228

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp95E3.tmp"
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3588

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp94F8.tmp

Filesize
1KB

MD5
ae766004c0d8792953bafffe8f6a2e3b

SHA1
14b12f27543a401e2fe0af8052e116cab0032426

SHA256
1abdd9b6a6b84e4ba1af1282dc84ce276c59ba253f4c4af05fea498a4fd99540

SHA512
e530da4a5d4336fc37838d0e93b5eb3804b9c489c71f6954a47fc81a4c655bb72ec493e109cf96e6e3617d7623ac80697ad3bbd5ffc6281bafc8b34dca5e6567

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp95E3.tmp

Filesize
1KB

MD5
93fc3117767507c9889abd12dc667d22

SHA1
1096e4cfa0c35756e3c3fb866c1e4c1e59115df9

SHA256
684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a

SHA512
e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc

Download Submit
memory/1856-10-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1856-7-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-8-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-18-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-19-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/1856-20-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4292-3-0x0000000074942000-0x0000000074943000-memory.dmp

Filesize
4KB

Download
memory/4292-4-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4292-9-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4292-0-0x0000000074942000-0x0000000074943000-memory.dmp

Filesize
4KB

Download
memory/4292-2-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download
memory/4292-1-0x0000000074940000-0x0000000074EF1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads