nanocore | 99ab1c5e618395788c5e9727025391f40dfa073a8aa032021b86542d4ea1b16d

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 14:57

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General

Target
f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe
Size 961KB
Sample240416-sbw5jsch39
SHA256 99ab1c5e618395788c5e9727025391f40dfa073a8aa032021b86542d4ea1b16d
MD5 f3ba4725aed22cff143931e193c7e13a
SHA1 7cbc7a9d05fa160886d6bc4c5c837d853b6672ba
SHA512 970269b5cbd31e974ab0dc59a210ab6f94ad5e23dae48c321d4428eb641a90e4f523b2ff21d2d3f5ecd87179b2d6e0be4d54cfe9fbedeb6fcecf4cae3ccb1e8c
SSDEEP 24576:7k94+wa+kgllur03ok6H/GR9570ZHfF0:QG+GkgLp3ov/Ov05
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

godisgood1.hopto.org:7712

Mutex

9ed8d108-2eb1-4e23-9679-783796e4baff

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-04-23T17:16:53.813634136Z
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
7712
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
9ed8d108-2eb1-4e23-9679-783796e4baff
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
godisgood1.hopto.org
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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe"	f3ba4725aed22cff143931e193c7e13a_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	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1420 set thread context of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\TCP Service\tcpsv.exe	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\TCP Service\tcpsv.exe	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2568	schtasks.exe
2588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe
2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 1420 wrote to memory of 2656	1420	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	28
PID 2656 wrote to memory of 2568	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	29
PID 2656 wrote to memory of 2568	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	29
PID 2656 wrote to memory of 2568	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	29
PID 2656 wrote to memory of 2568	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	29
PID 2656 wrote to memory of 2588	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	31
PID 2656 wrote to memory of 2588	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	31
PID 2656 wrote to memory of 2588	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	31
PID 2656 wrote to memory of 2588	2656	f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1420
- C:\Users\Admin\AppData\Local\Temp\f3ba4725aed22cff143931e193c7e13a_JaffaCakes118.exe
  "{path}"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2656
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp91C4.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2568
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9232.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp91C4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp91C4.tmp
Size 1KB
SHA256 e60cc5f6b9f8da9c793eb6002f37929f10ffdf08d54fdbb5068058e86143ea13
MD5 c245e9627841eadebc37df385008a786
SHA1 d4353b995af58126c49620d4877167e8ada2b388
SHA512 eaf6c0c3d107a68e4455ac8f8c232b0abddbea431bfe26b689ffcdb44e8f09f2ca3da42c1c7786b4bff9325460eb5d598237f1aed4da5fe919fd995f1aee345e
MD5 SHA1 SHA512

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tmp9232.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp9232.tmp
Size 1KB
SHA256 684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a
MD5 93fc3117767507c9889abd12dc667d22
SHA1 1096e4cfa0c35756e3c3fb866c1e4c1e59115df9
SHA512 e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc
MD5 SHA1 SHA512

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memory/1420-0-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/1420-1-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/1420-2-0x00000000020C0000-0x0000000002100000-memory.dmp

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memory/1420-3-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/1420-4-0x00000000020C0000-0x0000000002100000-memory.dmp

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memory/1420-5-0x00000000020C0000-0x0000000002100000-memory.dmp

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memory/1420-19-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/2656-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/2656-10-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-16-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-20-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/2656-21-0x00000000022E0000-0x0000000002320000-memory.dmp

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memory/2656-8-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-22-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/2656-7-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-6-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2656-30-0x00000000745B0000-0x0000000074B5B000-memory.dmp

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memory/2656-31-0x00000000022E0000-0x0000000002320000-memory.dmp

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