nanocore | 0a42fedc4dd1108d4ae76f0f8426c0c06819b71601daeefcf51b4dddf8098d22

Analysis

max time kernel
152s
max time network
166s
platform
windows10_x64
resource
win10-en-20210920
submitted
18-10-2021 20:15

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General

Target

f35901ef2cfb37a099b8b4e0e1c79043.exe
Size

1.1MB
MD5

f35901ef2cfb37a099b8b4e0e1c79043
SHA1

9501ef1e0fa3c0c7f3bd9414ab58b6fae8a7b46e
SHA256

0a42fedc4dd1108d4ae76f0f8426c0c06819b71601daeefcf51b4dddf8098d22
SHA512

70d1b1da398c833927c33d64bf156fde0de64d375a60c6dfb9c56433d98c3fcad2cfcb310ddec2bcfaf1152a59d270ad84ca50e1fb9e7d953b5f70034d7884dc

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
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
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:

sreomamj.pifRegSvcs.exe

pid process

3924 sreomamj.pif
4388 RegSvcs.exe

pid	process
3924	sreomamj.pif
4388	RegSvcs.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

sreomamj.pifRegSvcs.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	sreomamj.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "C:\\Users\\Admin\\AppData\\Local\\Temp\\48148895\\sreomamj.pif C:\\Users\\Admin\\AppData\\Local\\Temp\\48148895\\klkt.epb"	sreomamj.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\48148895\\Update.vbs"	sreomamj.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Service = "C:\\Program Files (x86)\\SCSI Service\\scsisvc.exe"	RegSvcs.exe

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:

sreomamj.pif

description pid process target process

PID 3924 set thread context of 4388 3924 sreomamj.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 3924 set thread context of 4388	3924	sreomamj.pif	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\SCSI Service\scsisvc.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SCSI Service\scsisvc.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

4324 schtasks.exe
2860 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

RegSvcs.exe

pid process

4388 RegSvcs.exe
4388 RegSvcs.exe
4388 RegSvcs.exe
4388 RegSvcs.exe
4388 RegSvcs.exe
4388 RegSvcs.exe
4388 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

4388 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 4388 RegSvcs.exe
Token: SeDebugPrivilege 4388 RegSvcs.exe

pid	process
4324	schtasks.exe
2860	schtasks.exe

pid	process
4388	RegSvcs.exe
4388	RegSvcs.exe
4388	RegSvcs.exe
4388	RegSvcs.exe
4388	RegSvcs.exe
4388	RegSvcs.exe
4388	RegSvcs.exe

pid	process
4388	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	4388	RegSvcs.exe
Token: SeDebugPrivilege	4388	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

f35901ef2cfb37a099b8b4e0e1c79043.exesreomamj.pifRegSvcs.exe

description	pid	process	target process
PID 4068 wrote to memory of 3924	4068	f35901ef2cfb37a099b8b4e0e1c79043.exe	sreomamj.pif
PID 4068 wrote to memory of 3924	4068	f35901ef2cfb37a099b8b4e0e1c79043.exe	sreomamj.pif
PID 4068 wrote to memory of 3924	4068	f35901ef2cfb37a099b8b4e0e1c79043.exe	sreomamj.pif
PID 3924 wrote to memory of 4388	3924	sreomamj.pif	RegSvcs.exe
PID 3924 wrote to memory of 4388	3924	sreomamj.pif	RegSvcs.exe
PID 3924 wrote to memory of 4388	3924	sreomamj.pif	RegSvcs.exe
PID 3924 wrote to memory of 4388	3924	sreomamj.pif	RegSvcs.exe
PID 3924 wrote to memory of 4388	3924	sreomamj.pif	RegSvcs.exe
PID 4388 wrote to memory of 4324	4388	RegSvcs.exe	schtasks.exe
PID 4388 wrote to memory of 4324	4388	RegSvcs.exe	schtasks.exe
PID 4388 wrote to memory of 4324	4388	RegSvcs.exe	schtasks.exe
PID 4388 wrote to memory of 2860	4388	RegSvcs.exe	schtasks.exe
PID 4388 wrote to memory of 2860	4388	RegSvcs.exe	schtasks.exe
PID 4388 wrote to memory of 2860	4388	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\f35901ef2cfb37a099b8b4e0e1c79043.exe
"C:\Users\Admin\AppData\Local\Temp\f35901ef2cfb37a099b8b4e0e1c79043.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Users\Admin\AppData\Local\Temp\48148895\sreomamj.pif
  "C:\Users\Admin\AppData\Local\Temp\48148895\sreomamj.pif" klkt.epb
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3924
- - 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:4388
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1559.tmp"
      4⤵
      Creates scheduled task(s)
      PID:4324
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SCSI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp16D1.tmp"
      4⤵
      Creates scheduled task(s)
      PID:2860

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\48148895\gwbv.wkd

MD5
afd806b4b08973a1de5fefdc29654311

SHA1
95dc6c43deb6c165d958aaf8cf904c2755b6ed80

SHA256
ad957dee5792323eff9937cbcad75da33ce8297e696e59c197589a35a47d8ac9

SHA512
f9ee9c49a79a52e34bdeee1247577f6975b62f93f93dbd81b485a47096bccbfb42b3b42617cc7e7294530fea6be714d44a02f1751565c33e7456088fbbf7521d

Download Submit
C:\Users\Admin\AppData\Local\Temp\48148895\kfxl.cpl

MD5
92ca7756dd3a2c07777f840f3dd5e0e4

SHA1
3b83db719968503a7e5da9628889c335c84d3f27

SHA256
f26605dabf5ba2c2704bb0bb3806dd9328dfde86e04728bffb91b883d3998008

SHA512
465f2b47dcb2e31824c2bf27a733b86657a7a05bc56236b176f84ef54969a4a8bb5048b79375216fbdf4aaf7412eec47152e3910ceb218f7435f424b0c170ee7

Download Submit
C:\Users\Admin\AppData\Local\Temp\48148895\klkt.epb

MD5
976f40889e798f42c3958524eea623eb

SHA1
a1321662be88e385be97171d5ecba4d681efa80b

SHA256
d066de4b6cd646b40c2e1824588cc1317b62c34b930f948d1df8bb9a485f7656

SHA512
bd3a11a32bc247d41e514613448fedd70c2e15053b8c14d8b96dd256a0a049eced4919a32e65036a8e15a6ba032e6345004104764d217eefc8a678f6ab30ac8f

Download Submit
C:\Users\Admin\AppData\Local\Temp\48148895\sreomamj.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\AppData\Local\Temp\48148895\sreomamj.pif

MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

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\tmp1559.tmp

MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp16D1.tmp

MD5
4e71faa3a77029484cfaba423d96618f

SHA1
9c837d050bb43d69dc608af809c292e13bca4718

SHA256
c470f45efd2e7c4c5b88534a18965a78dce0f8e154d3e45a9d5569ad0e334bdb

SHA512
6d014de41352f2b0b494d94cd58188791e81d4e53578d0722110b6827793b735e19c614877f25c61b26233dea1b5f1998ba1240bdc8fa04c87b7e64a4ca15fe0

Download Submit
memory/2860-134-0x0000000000000000-mapping.dmp

Download
memory/3924-115-0x0000000000000000-mapping.dmp

Download
memory/4324-132-0x0000000000000000-mapping.dmp

Download
memory/4388-129-0x00000000054C0000-0x00000000054C1000-memory.dmp

Filesize
4KB

Download
memory/4388-130-0x00000000052A0000-0x000000000579E000-memory.dmp

Filesize
5.0MB

Download
memory/4388-131-0x0000000005370000-0x0000000005371000-memory.dmp

Filesize
4KB

Download
memory/4388-128-0x0000000005380000-0x0000000005381000-memory.dmp

Filesize
4KB

Download
memory/4388-127-0x00000000057A0000-0x00000000057A1000-memory.dmp

Filesize
4KB

Download
memory/4388-121-0x0000000000600000-0x0000000000D2F000-memory.dmp

Filesize
7.2MB

Download
memory/4388-122-0x000000000061E792-mapping.dmp

Download
memory/4388-136-0x00000000054A0000-0x00000000054A5000-memory.dmp

Filesize
20KB

Download
memory/4388-137-0x00000000054B0000-0x00000000054B6000-memory.dmp

Filesize
24KB

Download
memory/4388-138-0x00000000055E0000-0x00000000055F9000-memory.dmp

Filesize
100KB

Download
memory/4388-139-0x00000000063A0000-0x00000000063A3000-memory.dmp

Filesize
12KB

Download