nanocore | 29bc7a7ec63bb64f38ebead4028fd2fd1cf46f9d9cc3ba85c7aca32182477abc

Analysis

max time kernel
151s
max time network
157s
platform
windows10_x64
resource
win10-en-20211014
submitted
18-10-2021 12:50

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General

Target

4f3411e3c3b5fa0af2d78198932a7714.exe
Size

1.1MB
MD5

4f3411e3c3b5fa0af2d78198932a7714
SHA1

725c315f423b4403dc8f55b4690fb5381bbe7882
SHA256

29bc7a7ec63bb64f38ebead4028fd2fd1cf46f9d9cc3ba85c7aca32182477abc
SHA512

580bff8aa1accfd3d84315bc1026b0d0796fe240cd290bc530170160cd03f7f975dd92ab9e2eaae72598561ee2347a4bce2ac62e0af07c463ebd1458fc2a1d9d

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:

gdfnv.pifRegSvcs.exe

pid process

2704 gdfnv.pif
1532 RegSvcs.exe

pid	process
2704	gdfnv.pif
1532	RegSvcs.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

gdfnv.pifRegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\66768162\\Update.vbs"	gdfnv.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe"	RegSvcs.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	gdfnv.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "C:\\Users\\Admin\\AppData\\Roaming\\66768162\\gdfnv.pif C:\\Users\\Admin\\AppData\\Roaming\\66768162\\pjpta.fkm"	gdfnv.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:

gdfnv.pif

description pid process target process

PID 2704 set thread context of 1532 2704 gdfnv.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 2704 set thread context of 1532	2704	gdfnv.pif	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Manager\smtpmgr.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Manager\smtpmgr.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

3852 schtasks.exe
3860 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RegSvcs.exe

pid process

1532 RegSvcs.exe
1532 RegSvcs.exe
1532 RegSvcs.exe
1532 RegSvcs.exe
1532 RegSvcs.exe
1532 RegSvcs.exe
1532 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1532 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1532 RegSvcs.exe
Token: SeDebugPrivilege 1532 RegSvcs.exe

pid	process
3852	schtasks.exe
3860	schtasks.exe

pid	process
1532	RegSvcs.exe
1532	RegSvcs.exe
1532	RegSvcs.exe
1532	RegSvcs.exe
1532	RegSvcs.exe
1532	RegSvcs.exe
1532	RegSvcs.exe

pid	process
1532	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1532	RegSvcs.exe
Token: SeDebugPrivilege	1532	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4f3411e3c3b5fa0af2d78198932a7714.exegdfnv.pifRegSvcs.exe

description	pid	process	target process
PID 1624 wrote to memory of 2704	1624	4f3411e3c3b5fa0af2d78198932a7714.exe	gdfnv.pif
PID 1624 wrote to memory of 2704	1624	4f3411e3c3b5fa0af2d78198932a7714.exe	gdfnv.pif
PID 1624 wrote to memory of 2704	1624	4f3411e3c3b5fa0af2d78198932a7714.exe	gdfnv.pif
PID 2704 wrote to memory of 1532	2704	gdfnv.pif	RegSvcs.exe
PID 2704 wrote to memory of 1532	2704	gdfnv.pif	RegSvcs.exe
PID 2704 wrote to memory of 1532	2704	gdfnv.pif	RegSvcs.exe
PID 2704 wrote to memory of 1532	2704	gdfnv.pif	RegSvcs.exe
PID 2704 wrote to memory of 1532	2704	gdfnv.pif	RegSvcs.exe
PID 1532 wrote to memory of 3852	1532	RegSvcs.exe	schtasks.exe
PID 1532 wrote to memory of 3852	1532	RegSvcs.exe	schtasks.exe
PID 1532 wrote to memory of 3852	1532	RegSvcs.exe	schtasks.exe
PID 1532 wrote to memory of 3860	1532	RegSvcs.exe	schtasks.exe
PID 1532 wrote to memory of 3860	1532	RegSvcs.exe	schtasks.exe
PID 1532 wrote to memory of 3860	1532	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\4f3411e3c3b5fa0af2d78198932a7714.exe
"C:\Users\Admin\AppData\Local\Temp\4f3411e3c3b5fa0af2d78198932a7714.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif
  "C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif" pjpta.fkm
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2704
- - 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:1532
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2864.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3852
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2B14.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3860

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\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\tmp2864.tmp

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2B14.tmp

MD5
b3b017f9df206021717a11f11d895402

SHA1
e4ea12823af6550ee634536eec1eb14490580a3b

SHA256
654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024

SHA512
95666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343

Download Submit
C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\AppData\Roaming\66768162\gdfnv.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\AppData\Roaming\66768162\ltwvs.cik

MD5
88ab41e955b6e11dd4bc846ded12e7e3

SHA1
992671d952964936fac929485bad2af7a1ed0a20

SHA256
1b65bc4d4d3953c4911151f5ad1e3fc61531fc27c8bb801b3aa69e686d3effd6

SHA512
0b655266870b2074152ab9b37f199b6fa5cc75330ac6828a8ecf5ae28a05704daef3f065c0836ee17eaf4dd924debe121b7451073a733977a570249c741264c4

Download Submit
C:\Users\Admin\AppData\Roaming\66768162\oblutduqv.msc

MD5
3e6efc81422d861c21c0e1a142d8f6f6

SHA1
c8f945a945b6f8c87e070bd417d5999f5b9cc99e

SHA256
d902cead5b9363309da664a66e15650df864fe6b582e48e9d9f64318ab48a58f

SHA512
c4d339f0d4b9c8e47e9f2b32f21dc4e8016c31db7014806cabe64a494290427f34f3d43113334d16f6f2bc31ee6799a1fa314efeaf7eaf44f65ace9855795b60

Download Submit
C:\Users\Admin\AppData\Roaming\66768162\pjpta.fkm

MD5
0ea8e86928bd9c2610ef08b348cbab93

SHA1
be9d3dbc35eea29382484ea37c84f4c6f0430f1d

SHA256
ea8f321e46920cdf3bcf2fd8b56b3e7c16d8dacba69734d467bcca08c3177851

SHA512
e769228ea3fcf8ae2a1ba29cde6ad1649edc9b362860cf489bfb9181b29874300cf820ec0a754e648ac4f5a335152cfb70fe8f2a2ad782023eb6c04cc847f4b7

Download Submit
memory/1532-127-0x0000000005E20000-0x0000000005E21000-memory.dmp

Filesize
4KB

Download
memory/1532-121-0x0000000000D00000-0x00000000012E2000-memory.dmp

Filesize
5.9MB

Download
memory/1532-128-0x0000000005A00000-0x0000000005A01000-memory.dmp

Filesize
4KB

Download
memory/1532-129-0x0000000005B40000-0x0000000005B41000-memory.dmp

Filesize
4KB

Download
memory/1532-130-0x0000000005AB0000-0x0000000005AB1000-memory.dmp

Filesize
4KB

Download
memory/1532-131-0x0000000005920000-0x0000000005E1E000-memory.dmp

Filesize
5.0MB

Download
memory/1532-139-0x0000000006A30000-0x0000000006A33000-memory.dmp

Filesize
12KB

Download
memory/1532-122-0x0000000000D1E792-mapping.dmp

Download
memory/1532-138-0x0000000006A00000-0x0000000006A19000-memory.dmp

Filesize
100KB

Download
memory/1532-137-0x00000000069F0000-0x00000000069F6000-memory.dmp

Filesize
24KB

Download
memory/1532-136-0x0000000006960000-0x0000000006965000-memory.dmp

Filesize
20KB

Download
memory/2704-115-0x0000000000000000-mapping.dmp

Download
memory/3852-132-0x0000000000000000-mapping.dmp

Download
memory/3860-134-0x0000000000000000-mapping.dmp

Download