nanocore | e88b591e50dc770c48156d2c86655923a090ee619753a6028ed857697d21f9db

Analysis

max time kernel
147s
max time network
151s
platform
windows7_x64
resource
win7-en-20210920
submitted
13-10-2021 09:43

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General

Target

664d73b23eddfcd0227786b9d0f5d022.exe
Size

1.1MB
MD5

664d73b23eddfcd0227786b9d0f5d022
SHA1

36fa060dbc146777f54c958e7457096af267e15c
SHA256

e88b591e50dc770c48156d2c86655923a090ee619753a6028ed857697d21f9db
SHA512

759eef2e746bb0100637b73f688da001a2a1d91105dc978ba2d69988dd1ec74efe00cfa6146b07e8d1150dbbd6315cb715e70dfe390bd7765aa60abcf553f18b

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

strongodss.ddns.net:48562

185.19.85.175:48562

Mutex

ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6

Attributes

activate_away_mode
false
backup_connection_host
185.19.85.175
backup_dns_server
buffer_size
65538
build_time
2021-04-20T00:12:13.961451136Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
48562
default_group
HOBBIT
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
ba2baad0-dd3f-4844-a1e3-4d042f9ae8b6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
strongodss.ddns.net
primary_dns_server
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
8009

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Executes dropped EXE 2 IoCs

Processes:

ahmrqkljvd.pifRegSvcs.exe

pid process

676 ahmrqkljvd.pif
1796 RegSvcs.exe

pid	process
676	ahmrqkljvd.pif
1796	RegSvcs.exe

Loads dropped DLL 5 IoCs

Processes:

664d73b23eddfcd0227786b9d0f5d022.exeahmrqkljvd.pif

pid	process
1520	664d73b23eddfcd0227786b9d0f5d022.exe
1520	664d73b23eddfcd0227786b9d0f5d022.exe
1520	664d73b23eddfcd0227786b9d0f5d022.exe
1520	664d73b23eddfcd0227786b9d0f5d022.exe
676	ahmrqkljvd.pif

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ahmrqkljvd.pifRegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "C:\\Users\\Admin\\70020325\\Update.vbs"	ahmrqkljvd.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe"	RegSvcs.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	ahmrqkljvd.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "C:\\Users\\Admin\\70020325\\AHMRQK~1.PIF C:\\Users\\Admin\\70020325\\IWQNLL~1.JAM"	ahmrqkljvd.pif

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegSvcs.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegSvcs.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

ahmrqkljvd.pif

description pid process target process

PID 676 set thread context of 1796 676 ahmrqkljvd.pif RegSvcs.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	RegSvcs.exe

description	pid	process	target process
PID 676 set thread context of 1796	676	ahmrqkljvd.pif	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	RegSvcs.exe

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

System Information Discovery
T1082
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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1164 schtasks.exe
1188 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RegSvcs.exe

pid process

1796 RegSvcs.exe
1796 RegSvcs.exe
1796 RegSvcs.exe
1796 RegSvcs.exe
1796 RegSvcs.exe
1796 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1796 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1796 RegSvcs.exe
Token: SeDebugPrivilege 1796 RegSvcs.exe

pid	process
1164	schtasks.exe
1188	schtasks.exe

pid	process
1796	RegSvcs.exe
1796	RegSvcs.exe
1796	RegSvcs.exe
1796	RegSvcs.exe
1796	RegSvcs.exe
1796	RegSvcs.exe

pid	process
1796	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1796	RegSvcs.exe
Token: SeDebugPrivilege	1796	RegSvcs.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

664d73b23eddfcd0227786b9d0f5d022.exeahmrqkljvd.pifRegSvcs.exe

description	pid	process	target process
PID 1520 wrote to memory of 676	1520	664d73b23eddfcd0227786b9d0f5d022.exe	ahmrqkljvd.pif
PID 1520 wrote to memory of 676	1520	664d73b23eddfcd0227786b9d0f5d022.exe	ahmrqkljvd.pif
PID 1520 wrote to memory of 676	1520	664d73b23eddfcd0227786b9d0f5d022.exe	ahmrqkljvd.pif
PID 1520 wrote to memory of 676	1520	664d73b23eddfcd0227786b9d0f5d022.exe	ahmrqkljvd.pif
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 676 wrote to memory of 1796	676	ahmrqkljvd.pif	RegSvcs.exe
PID 1796 wrote to memory of 1188	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1188	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1188	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1188	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1164	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1164	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1164	1796	RegSvcs.exe	schtasks.exe
PID 1796 wrote to memory of 1164	1796	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\664d73b23eddfcd0227786b9d0f5d022.exe
"C:\Users\Admin\AppData\Local\Temp\664d73b23eddfcd0227786b9d0f5d022.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\70020325\ahmrqkljvd.pif
  "C:\Users\Admin\70020325\ahmrqkljvd.pif" iwqnllkpjb.jam
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:676
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - 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:1796
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEF7D.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1188
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF317.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1164

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\70020325\ahmrqkljvd.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\70020325\iwqnllkpjb.jam

MD5
0ffdea02d408bde28e08909c0206c2c4

SHA1
726f64e817c65918f321ff5e548a2377d5f6ef39

SHA256
f2ddeb937a452ce93a1fee1224573cf31c346b5f77589170db125b7815ec3c18

SHA512
d6b77aaa2c9754f58a7cfaa24d463edf1e9139f78550f5b8c7615720dca65e6b059ffd4be7b468e7a3bd2607a9e410f8b0cf43a286b5f82386bf9ab8e8cda12a

Download Submit
C:\Users\Admin\70020325\jejniughm.eqr

MD5
2ccf7ca13cb8cf224ccda4a8ccd5b451

SHA1
f7d291cfe135dea0944c4660af9f24f0eef588ee

SHA256
85c02be42957aa4639ae6988b3cb6438c9f1ac28dae0101378bd4e6c63daa4f9

SHA512
d92fbf5922d0ebd7eb04ba2fbdd12768160466e883c8adcc432ae05d388c5c73a2061c3f06fbc8c988f14e78043993048ae2b8dfe6ab99f2f2308b86d67922b9

Download Submit
C:\Users\Admin\70020325\okeg.txt

MD5
1c9fd8e91bc238fb75b9baaf24d865fa

SHA1
f36a4da77ff16ee761fbd297e7d945ec82f40929

SHA256
43c6ca644516ec6ab314da10812387f3a4057a1df0d310acf289d0936385a87b

SHA512
97534ede3662cef1764376b7f5fb531d9dad5b7c39adafe849aa12ea3ef7da6f0364c96f6c9ec7927c97c11452cfba3e5cc174fd696a5eae86a81cd1508df926

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEF7D.tmp

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF317.tmp

MD5
c4aecdef99eba873119e79616df3f4b0

SHA1
b1b3af52655fb633eed909dfed05b64fbbfac37c

SHA256
24fd0d87bea36a024449a95f808aaa174e4ed9003cb8a427b67c02411b8a2e0b

SHA512
e3f44b07267fccf4f5abd4efe80f2b037ddadc4cb898bdfca9d21ac5d79fcac828950065c2060d3ce125ee971fc3096183afee5287ba9951fbbda7257d8ed8d4

Download Submit
\Users\Admin\70020325\ahmrqkljvd.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\Users\Admin\70020325\ahmrqkljvd.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\Users\Admin\70020325\ahmrqkljvd.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\Users\Admin\70020325\ahmrqkljvd.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\Users\Admin\AppData\Local\Temp\RegSvcs.exe

MD5
0e06054beb13192588e745ee63a84173

SHA1
30b7d4d1277bafd04a83779fd566a1f834a8d113

SHA256
c5d6d56ded55fbd6c150ee3a0eb2e5671cae83106be2be4d70ce50aa50bab768

SHA512
251a112f3f037e62ff67a467389e47a56afb344bc942b17efa9bd2970494718b26bbee9adc3ac35f93ee4d2114aa426b6d0ea4bafad294b6c118a15f1977c215

Download Submit
memory/676-59-0x0000000000000000-mapping.dmp

Download
memory/1164-76-0x0000000000000000-mapping.dmp

Download
memory/1188-73-0x0000000000000000-mapping.dmp

Download
memory/1520-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1796-68-0x000000000044E792-mapping.dmp

Download
memory/1796-67-0x0000000000430000-0x0000000000A9C000-memory.dmp

Filesize
6.4MB

Download
memory/1796-71-0x0000000000430000-0x0000000000A9C000-memory.dmp

Filesize
6.4MB

Download
memory/1796-66-0x0000000000430000-0x0000000000A9C000-memory.dmp

Filesize
6.4MB

Download
memory/1796-75-0x00000000053F0000-0x00000000053F1000-memory.dmp

Filesize
4KB

Download
memory/1796-78-0x0000000000CF0000-0x0000000000CF5000-memory.dmp

Filesize
20KB

Download
memory/1796-79-0x0000000000D50000-0x0000000000D56000-memory.dmp

Filesize
24KB

Download
memory/1796-80-0x0000000000E30000-0x0000000000E49000-memory.dmp

Filesize
100KB

Download
memory/1796-81-0x0000000000D60000-0x0000000000D63000-memory.dmp

Filesize
12KB

Download