nanocore | aafa43ef68abe0379ae6b5a58661f8470e789266911547798adc9c4e61ff7fd5

General

Target

c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
Size

417KB
MD5

c249866c5c1e5cc1c293446f7afc83d1
SHA1

d2562f95a19064cfa9358e1de8b1eff483ec5cea
SHA256

aafa43ef68abe0379ae6b5a58661f8470e789266911547798adc9c4e61ff7fd5
SHA512

d27264fab340878f4c272694ba410b069fc3f523b46a13fa2fdca3d2a65750257589eb3bd198a5d4cdee293d473d4b9281b3c5ef5923a08bb2975f65228f28f9
SSDEEP

6144:ctRWg7+8Ju1m98NHuLwJcUSsW40NUtlaC1Z6FcQWqPBweISoPP2M8szyWD+p4/Sm:ca9wwJfSa0SlaCziTB1ISu23WxT

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

nibiru3.duckdns.org:5555

nibiru33.duckdns.org:5555

Mutex

1a423233-b41d-4cb1-8fcc-f82fa5fceeac

Attributes

activate_away_mode
false
backup_connection_host
nibiru33.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-26T14:35:43.633984136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
5555
default_group
.......14-02-21
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
1a423233-b41d-4cb1-8fcc-f82fa5fceeac
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
nibiru3.duckdns.org
primary_dns_server
8.8.8.8
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
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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\NAS Monitor = "C:\\Program Files (x86)\\NAS Monitor\\nasmon.exe"	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.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	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1624 set thread context of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\NAS Monitor\nasmon.exe	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\NAS Monitor\nasmon.exe	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
Token: SeDebugPrivilege	2492	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86
PID 1624 wrote to memory of 2492	1624	c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe"
  2⤵
  - 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
  PID:2492

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

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\Microsoft\CLR_v4.0_32\UsageLogs\c249866c5c1e5cc1c293446f7afc83d1_JaffaCakes118.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
memory/1624-6-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1624-1-0x0000000000B20000-0x0000000000B8E000-memory.dmp

Filesize
440KB

Download
memory/1624-2-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/1624-3-0x0000000002F70000-0x0000000002F78000-memory.dmp

Filesize
32KB

Download
memory/1624-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2492-9-0x0000000005300000-0x00000000058A4000-memory.dmp

Filesize
5.6MB

Download
memory/2492-8-0x0000000000800000-0x0000000000838000-memory.dmp

Filesize
224KB

Download
memory/2492-7-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/2492-11-0x0000000004DF0000-0x0000000004E8C000-memory.dmp

Filesize
624KB

Download
memory/2492-10-0x0000000004D50000-0x0000000004DE2000-memory.dmp

Filesize
584KB

Download
memory/2492-12-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/2492-13-0x0000000004CD0000-0x0000000004CDA000-memory.dmp

Filesize
40KB

Download
memory/2492-16-0x0000000004D30000-0x0000000004D3A000-memory.dmp

Filesize
40KB

Download
memory/2492-17-0x00000000052D0000-0x00000000052EE000-memory.dmp

Filesize
120KB

Download
memory/2492-18-0x0000000005BA0000-0x0000000005BAA000-memory.dmp

Filesize
40KB

Download
memory/2492-19-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download
memory/2492-20-0x0000000074B20000-0x00000000752D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads