nanocore | 55edcf08f8521a9cddde8570baaac0ab8ef6e640e96c834db0e5c12f5b9c68fe

Analysis

max time kernel
134s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:18

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General

Target

f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
Size

923KB
MD5

03fec9db45b4e2b6bd119629c62afeed
SHA1

f9e3d4f4c5142b8e9e62d876fb1d75022059936e
SHA256

f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29
SHA512

f30c2d7bb2201b9f78c5c23bcad35a04bad30a23b32e8bba006b9fb4ac453476d303109802c5799d60c813d7e942f3f38f336075d9709af0c02daadf8762cd7c
SSDEEP

24576:UdtP2cbksTpugRNJI5kFMJF9OWjwjLOjZX7:tgq17

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

91.236.116.142:5888

Mutex

d995ed82-bf13-4043-b564-f5f89f8c5209

Attributes

activate_away_mode
true
backup_connection_host
91.236.116.142
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2017-01-07T03:01:54.729778636Z
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
5888
default_group
Spy
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
d995ed82-bf13-4043-b564-f5f89f8c5209
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.236.116.142
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
Nanocore family
nanocore

Executes dropped EXE 1 IoCs

pid	Process
2496	app.exe

Loads dropped DLL 1 IoCs

pid	Process
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.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\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\app.exe"	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 2984	2496	app.exe	32

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.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
1728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
2496	app.exe
2496	app.exe
2496	app.exe
2496	app.exe
2496	app.exe
2496	app.exe
2984	aspnet_compiler.exe
2984	aspnet_compiler.exe
2984	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2984	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
Token: SeDebugPrivilege	2496	app.exe
Token: SeDebugPrivilege	2984	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 2496	2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe	31
PID 2980 wrote to memory of 2496	2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe	31
PID 2980 wrote to memory of 2496	2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe	31
PID 2980 wrote to memory of 2496	2980	f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe	31
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2496 wrote to memory of 2984	2496	app.exe	32
PID 2984 wrote to memory of 1728	2984	aspnet_compiler.exe	33
PID 2984 wrote to memory of 1728	2984	aspnet_compiler.exe	33
PID 2984 wrote to memory of 1728	2984	aspnet_compiler.exe	33
PID 2984 wrote to memory of 1728	2984	aspnet_compiler.exe	33

C:\Users\Admin\AppData\Local\Temp\f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe
"C:\Users\Admin\AppData\Local\Temp\f27c4963784ed1d311afd03bdfbe000f499b67edd16c4af85d34e547b892ca29.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Users\Admin\AppData\Roaming\app.exe
  "C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2496
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2984
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "IMAP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCCFF.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
71KB

MD5
83142242e97b8953c386f988aa694e4a

SHA1
833ed12fc15b356136dcdd27c61a50f59c5c7d50

SHA256
d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

SHA512
bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
6b64c81113fabfb7c4ccfb81a776a498

SHA1
77aa208d11ff107c06b1397fc507fb61ad209a1b

SHA256
b48c5bf04694adbb10328b96f78dc4760b853eb8db6789418ca32c90043b82e3

SHA512
5e837ab9c0a226a2f00fd4b79779491d87747963b912aeaeecd681c460628929a25755960969ff286926942881f16cc1a1ce7efff1abfac367c094e6bc1e6d3d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
344B

MD5
a5883e7b08e409b51f2af3e5673f2f1e

SHA1
9756b0c8851196a652a97b05377f44a19bb7dc71

SHA256
136a163077da14661fadcb7ecea9db33926978e9d404320221cad9d4fea23858

SHA512
93f8d6164b75d30d6efc758e48e47afee9363cdef30652b1cfdb92aa012e8ffdfc02259f423c626f3bffe2961b893de3db1909019be45a2f27587098d9dd3861

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab827B.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar828D.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar8526.tmp

Filesize
183KB

MD5
109cab5505f5e065b63d01361467a83b

SHA1
4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

SHA256
ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

SHA512
753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

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

Filesize
1KB

MD5
d81eb43d26d4511c44151cba2eb45983

SHA1
135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

SHA256
a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

SHA512
b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
929KB

MD5
ae438e05ae8dfe2a226d2c48f346a51a

SHA1
11a8cd7df4608c203185bd52bea2320218482045

SHA256
4126fc8665c37df0e1a3b33c343864ee740906623c4203f15f2800c6a477e787

SHA512
3c4cf2f38dfa5923713e7a961737c650c931c7405e87451dddd9c4b4a6ca80965404837397b77d4a77804bc3296637fe765628b7dd00d732fb9b9654c37ef44c

Download Submit
memory/2496-206-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2496-220-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2496-234-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-9-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-185-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-186-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-187-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-1-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-205-0x00000000745F0000-0x0000000074B9B000-memory.dmp

Filesize
5.7MB

Download
memory/2980-0-0x00000000745F1000-0x00000000745F2000-memory.dmp

Filesize
4KB

Download
memory/2984-228-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-231-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-233-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-232-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-230-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-226-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-224-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2984-222-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download