nanocore | 76c9d2b34edaae5d479d69ff362d53fdbdd22a6337fdbdabc5df8df59e11e665

General

Target

07398dd4c7591ec9f9385e0ea829e4c8.exe
Size

879KB
MD5

07398dd4c7591ec9f9385e0ea829e4c8
SHA1

b88174437c2c69fd684a3a196e8dda47869ba90c
SHA256

76c9d2b34edaae5d479d69ff362d53fdbdd22a6337fdbdabc5df8df59e11e665
SHA512

40d2d6cbe4be8949164518d1dbd8bf169e9c335a1c95943b3872b1d99a814af51869364e8808009bc1fcc162ea4026af1b3bbc0fc7044aca74b8872efbb5aae3
SSDEEP

12288:XprnO2DbvPkD5a6sdYUAI2HNCKMrygO5822MT++CcTS8eq3yuxmy7vnt14k:Xc2fFzANN5oO222ECcOq5mkPt2k

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

1116.hopto.org:1116

185.140.53.9:1116

Mutex

909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.9
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-16T08:43:19.524585136Z
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
1116
default_group
1116
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
909dcd33-e0d7-4bd0-87b2-b7fd2611b6b9
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
1116.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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral2/memory/2896-7-0x0000000005900000-0x0000000005912000-memory.dmp	CustAttr

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-1-5-21-2398549320-3657759451-817663969-1000\Control Panel\International\Geo\Nation	07398dd4c7591ec9f9385e0ea829e4c8.exe

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\SMTP Host = "C:\\Program Files (x86)\\SMTP Host\\smtphost.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Host\smtphost.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Host\smtphost.exe	RegSvcs.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
4692	schtasks.exe
3928	schtasks.exe
180	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2928	RegSvcs.exe
2928	RegSvcs.exe
2928	RegSvcs.exe
2928	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 4692	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	104
PID 2896 wrote to memory of 4692	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	104
PID 2896 wrote to memory of 4692	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	104
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2896 wrote to memory of 2928	2896	07398dd4c7591ec9f9385e0ea829e4c8.exe	106
PID 2928 wrote to memory of 3928	2928	RegSvcs.exe	107
PID 2928 wrote to memory of 3928	2928	RegSvcs.exe	107
PID 2928 wrote to memory of 3928	2928	RegSvcs.exe	107
PID 2928 wrote to memory of 180	2928	RegSvcs.exe	109
PID 2928 wrote to memory of 180	2928	RegSvcs.exe	109
PID 2928 wrote to memory of 180	2928	RegSvcs.exe	109

C:\Users\Admin\AppData\Local\Temp\07398dd4c7591ec9f9385e0ea829e4c8.exe
"C:\Users\Admin\AppData\Local\Temp\07398dd4c7591ec9f9385e0ea829e4c8.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NkKklXYrJQvDK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4FF0.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4692
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2928
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6906.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3928
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp6DAA.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:180

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4FF0.tmp

Filesize
1KB

MD5
0480f83b76b1016dfc626179f1a72635

SHA1
387fe1a9e377544212de0268ba1226d19c2c3518

SHA256
fa42ab2aee4ec30fbffffb80acbf3cd0846a75bbfe705904e2873acdbc80290f

SHA512
75548b14bbf68ef63ec16afc07ac65fed51c58101e523c86fcd9800fd6f50de1765513d4a113feaac14c747caad27cdc7a8095aff0fc53dde99f41ef3a1c2967

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6906.tmp

Filesize
1KB

MD5
8cad1b41587ced0f1e74396794f31d58

SHA1
11054bf74fcf5e8e412768035e4dae43aa7b710f

SHA256
3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c

SHA512
99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6DAA.tmp

Filesize
1KB

MD5
be81f72fa4dbc827132836ee2af92c96

SHA1
fe5ded04ab4932dea6cf414e9e4428f43da70d03

SHA256
bb9181b3935b8681a71b578f8166883e61380de6181df82d05f14829323fbf0f

SHA512
6abd5a844ab0204d3a803083e71a5d7097b5e85f46d9f80fefa8d06ff8fda11a7d9253d6cf2d51ad8932c1b27fc7cf6fbfc6e95dce75bfe43bf995e71b40e30e

Download Submit
memory/2896-9-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/2896-4-0x00000000055A0000-0x000000000563C000-memory.dmp

Filesize
624KB

Download
memory/2896-5-0x0000000005770000-0x0000000005780000-memory.dmp

Filesize
64KB

Download
memory/2896-6-0x00000000054B0000-0x00000000054BA000-memory.dmp

Filesize
40KB

Download
memory/2896-7-0x0000000005900000-0x0000000005912000-memory.dmp

Filesize
72KB

Download
memory/2896-2-0x0000000005B50000-0x00000000060F4000-memory.dmp

Filesize
5.6MB

Download
memory/2896-1-0x00000000009D0000-0x0000000000AB2000-memory.dmp

Filesize
904KB

Download
memory/2896-10-0x0000000006D40000-0x0000000006DE6000-memory.dmp

Filesize
664KB

Download
memory/2896-11-0x0000000009320000-0x0000000009358000-memory.dmp

Filesize
224KB

Download
memory/2896-3-0x00000000054E0000-0x0000000005572000-memory.dmp

Filesize
584KB

Download
memory/2896-8-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2896-0-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2896-19-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2928-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-21-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/2928-20-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2928-29-0x00000000055A0000-0x00000000055AA000-memory.dmp

Filesize
40KB

Download
memory/2928-30-0x0000000005640000-0x000000000565E000-memory.dmp

Filesize
120KB

Download
memory/2928-31-0x00000000067D0000-0x00000000067DA000-memory.dmp

Filesize
40KB

Download
memory/2928-32-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/2928-33-0x0000000074D40000-0x00000000754F0000-memory.dmp

Filesize
7.7MB

Download
memory/2928-34-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/2928-35-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads