nanocore | 7eccfb2ac45a99a369790670d0e81ccc19281b86cfaf8036b951870ebee22291

General

Target

b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
Size

851KB
MD5

b21939c8f60b333a602450ce9ed8e5c8
SHA1

999bfff04341d174c02978a42d572e96909192bc
SHA256

7eccfb2ac45a99a369790670d0e81ccc19281b86cfaf8036b951870ebee22291
SHA512

6bf7c99ad2aa4e83afbe5af99cdcccccb1bf00759b25c8c88ab5bccb074fddb4f205d35b6c9189fa5008ef27bad2984a6a20e2da4a7b032d72766b77d2cc4235
SSDEEP

12288:kgrZqWiXsPnmx0Ap1OynaWM1ITRtEbmOkdbIIRkxJ5g7v:kgrwWiXEVAp1OydMUtEbbQEI65k

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

45.137.22.36:4837

vps.rootlayer.net:4837

Mutex

a34ff911-f69f-4250-a136-9f7dda1ff095

Attributes

activate_away_mode
true
backup_connection_host
vps.rootlayer.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-11-26T04:44:00.669256236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4837
default_group
root1
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
a34ff911-f69f-4250-a136-9f7dda1ff095
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
45.137.22.36
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	b21939c8f60b333a602450ce9ed8e5c8_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	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4408 set thread context of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101

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 3 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	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2528	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
3200	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
3200	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
3200	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3200	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
Token: SeDebugPrivilege	3200	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4408 wrote to memory of 2528	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	99
PID 4408 wrote to memory of 2528	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	99
PID 4408 wrote to memory of 2528	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	99
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101
PID 4408 wrote to memory of 3200	4408	b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4408
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QpHPkzgcBelvAL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAAE1.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2528
- C:\Users\Admin\AppData\Local\Temp\b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\b21939c8f60b333a602450ce9ed8e5c8_JaffaCakes118.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAAE1.tmp

Filesize
1KB

MD5
b362f6a7fe40df4dac7b0c25b162369b

SHA1
cb04f70a5450291d9f11a40799d76414fda9020f

SHA256
5a55c8616a39693c37b83f34394e3653a4e9ab6c22050301d93f023d0a67e1db

SHA512
e562e555ef8a43f43c55c11cc9fd9cb2f53778b86dff69af0cac036ce564fc19f5f7af0b78ba6fa6f9250b4fc4b56115f94f54abbad507bd8fa9600441f49163

Download Submit
memory/3200-28-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-27-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-26-0x0000000005A90000-0x0000000005A9A000-memory.dmp

Filesize
40KB

Download
memory/3200-25-0x0000000005750000-0x000000000576E000-memory.dmp

Filesize
120KB

Download
memory/3200-24-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/3200-22-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-20-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3200-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4408-5-0x00000000057C0000-0x00000000057CA000-memory.dmp

Filesize
40KB

Download
memory/4408-11-0x00000000016C0000-0x0000000001728000-memory.dmp

Filesize
416KB

Download
memory/4408-10-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4408-9-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/4408-8-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

Filesize
40KB

Download
memory/4408-7-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4408-21-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/4408-6-0x0000000005B00000-0x0000000005B56000-memory.dmp

Filesize
344KB

Download
memory/4408-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/4408-4-0x00000000058E0000-0x0000000005972000-memory.dmp

Filesize
584KB

Download
memory/4408-3-0x0000000005E90000-0x0000000006434000-memory.dmp

Filesize
5.6MB

Download
memory/4408-2-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download
memory/4408-1-0x0000000000D40000-0x0000000000E1A000-memory.dmp

Filesize
872KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads