nanocore | ebe1bb18a77cf0b34d3ad06919a9adfff2aa69cfafa5b96b670534b890e3e2a8

Analysis

max time kernel
158s
max time network
167s
platform
windows10_x64
resource
win10-en-20210920
submitted
14-10-2021 08:25

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General

Target

b866823e1f8f4a52376bd108c457dd78.exe
Size

1.0MB
MD5

b866823e1f8f4a52376bd108c457dd78
SHA1

fe99849ec27630463080445337798eeba8000a02
SHA256

ebe1bb18a77cf0b34d3ad06919a9adfff2aa69cfafa5b96b670534b890e3e2a8
SHA512

fd1732ca7dc310395581d835ea3df1e7ad664c75c9c7f68ba55c0b2e521383a0c8781b490f7cc05428d6e534b356a585bf11b57e57808cc37ea08dabf4a09e13

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

ezeani.duckdns.org:8338

194.5.98.48:8338

Mutex

c213d282-998c-4a04-8f80-944681ca75f6

Attributes

activate_away_mode
true
backup_connection_host
194.5.98.48
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-25T02:31:51.856627236Z
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
8338
default_group
nano stub
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
c213d282-998c-4a04-8f80-944681ca75f6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ezeani.duckdns.org
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
Executes dropped EXE 3 IoCs

Processes:

mmuiqlcvwo.pifmmuiqlcvwo.pifRegSvcs.exe

pid process

1284 mmuiqlcvwo.pif
2588 mmuiqlcvwo.pif
1804 RegSvcs.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mmuiqlcvwo.pifmmuiqlcvwo.pif

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows element = "C:\\Users\\Admin\\33920049\\MMUIQL~1.PIF C:\\Users\\Admin\\33920049\\fmkkelc.omp"	mmuiqlcvwo.pif
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mmuiqlcvwo.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows element = "C:\\Users\\Admin\\33920049\\MMUIQL~1.PIF C:\\Users\\Admin\\33920049\\fmkkelc.omp"	mmuiqlcvwo.pif
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mmuiqlcvwo.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:

mmuiqlcvwo.pif

description pid process target process

PID 2588 set thread context of 1804 2588 mmuiqlcvwo.pif 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 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

704 schtasks.exe
Modifies registry class 1 IoCs

Processes:

mmuiqlcvwo.pif

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings mmuiqlcvwo.pif

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

description	pid	process	target process
PID 2588 set thread context of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe

pid	process
704	schtasks.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings	mmuiqlcvwo.pif

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

mmuiqlcvwo.pifmmuiqlcvwo.pifRegSvcs.exe

pid	process
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
1284	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
1804	RegSvcs.exe
1804	RegSvcs.exe
1804	RegSvcs.exe
1804	RegSvcs.exe
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
1804	RegSvcs.exe
1804	RegSvcs.exe
1804	RegSvcs.exe
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
1804	RegSvcs.exe
1804	RegSvcs.exe
1804	RegSvcs.exe
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif
2588	mmuiqlcvwo.pif

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1804 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1804 RegSvcs.exe

pid	process
1804	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1804	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

b866823e1f8f4a52376bd108c457dd78.exemmuiqlcvwo.pifWScript.exemmuiqlcvwo.pifRegSvcs.exe

description	pid	process	target process
PID 1576 wrote to memory of 1284	1576	b866823e1f8f4a52376bd108c457dd78.exe	mmuiqlcvwo.pif
PID 1576 wrote to memory of 1284	1576	b866823e1f8f4a52376bd108c457dd78.exe	mmuiqlcvwo.pif
PID 1576 wrote to memory of 1284	1576	b866823e1f8f4a52376bd108c457dd78.exe	mmuiqlcvwo.pif
PID 1284 wrote to memory of 1828	1284	mmuiqlcvwo.pif	WScript.exe
PID 1284 wrote to memory of 1828	1284	mmuiqlcvwo.pif	WScript.exe
PID 1284 wrote to memory of 1828	1284	mmuiqlcvwo.pif	WScript.exe
PID 1828 wrote to memory of 2588	1828	WScript.exe	mmuiqlcvwo.pif
PID 1828 wrote to memory of 2588	1828	WScript.exe	mmuiqlcvwo.pif
PID 1828 wrote to memory of 2588	1828	WScript.exe	mmuiqlcvwo.pif
PID 2588 wrote to memory of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe
PID 2588 wrote to memory of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe
PID 2588 wrote to memory of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe
PID 2588 wrote to memory of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe
PID 2588 wrote to memory of 1804	2588	mmuiqlcvwo.pif	RegSvcs.exe
PID 1804 wrote to memory of 704	1804	RegSvcs.exe	schtasks.exe
PID 1804 wrote to memory of 704	1804	RegSvcs.exe	schtasks.exe
PID 1804 wrote to memory of 704	1804	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\b866823e1f8f4a52376bd108c457dd78.exe
"C:\Users\Admin\AppData\Local\Temp\b866823e1f8f4a52376bd108c457dd78.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1576

C:\Users\Admin\33920049\mmuiqlcvwo.pif
"C:\Users\Admin\33920049\mmuiqlcvwo.pif" fmkkelc.omp
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1284

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\33920049\run.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1828

C:\Users\Admin\33920049\mmuiqlcvwo.pif
"C:\Users\Admin\33920049\mmuiqlcvwo.pif" fmkkelc.omp
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2588

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
5⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3E8C.tmp"
6⤵
- Creates scheduled task(s)
PID:704

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\33920049\abjtjj.gcm
MD5
1e44c5e2d839f53ac114916dfa41912b

SHA1
9b67abc94e2959683b5d784c8b076d6171af7237

SHA256
0fb93824d410f1e4ba2b233f405027d042edf2e729fa34a41be910b50ed99416

SHA512
14895d2f67585415d7d25807bba20f6aa8c142e8dd3483ed8e10f4280820cd0849ee828e3134beaf4a90fb8e41c9c524df01547330dfd3928470b3eeb95946a1

Download Submit
C:\Users\Admin\33920049\fmkkelc.omp
MD5
66d7b16f566ad4d6f73cd6083c7b1d51

SHA1
c71715b2546908a05a28a91555534f04bdf11432

SHA256
440d3b688f65bd11c021206c50d7b7c4a75c7ba66bd2e1aa4137abe65d41079a

SHA512
7ee084c1da1aabe2f7fcc084b4a9c5a9e5cfb86fb4fd45bc6ee08cd3e67fe41380d8fa0f0f312ec50198dc50ce230e36127ef5931ed455d9ce61efbd43e1a0ca

Download Submit
C:\Users\Admin\33920049\mmuiqlcvwo.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\33920049\mmuiqlcvwo.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\33920049\mmuiqlcvwo.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
C:\Users\Admin\33920049\qhqulleu.mp3
MD5
5dc5d3365bae36fc41072d92d22f69cb

SHA1
91ce48060dcccc9806afb9979a3a1759041036df

SHA256
067820a70679bc812c16421e4f759533dd91d8124ed36966436601b1f2013c94

SHA512
ce2119181fcbda7c1b08068f918c7282defc8ad951e129458bb75f6cc9ec4ca105482b5f4aac4c16e425736fa45da790d10b4ed9346a93b23b4f4f713a912a85

Download Submit
C:\Users\Admin\33920049\run.vbs
MD5
cf89b541a473227459c4641e6a8295a4

SHA1
34f155a33e7e412419707791b3a8b07bfc234421

SHA256
bbb9a6522209e63d480a0de5b498f48fd16945f32c80a42c7c8da1d992f676c7

SHA512
00207ab418361584e4afd9a7048fc86dea607400103a6962303bf10e0ad351383fccae32fd0524a0ca3eb732325636de16cad46b710c4fd676c9fd3cb37a2421

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\tmp3E8C.tmp
MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
memory/704-136-0x0000000000000000-mapping.dmp

Download
memory/1284-115-0x0000000000000000-mapping.dmp

Download
memory/1804-135-0x00000000059D0000-0x00000000059D1000-memory.dmp

Filesize
4KB

Download
memory/1804-126-0x0000000000F1E792-mapping.dmp

Download
memory/1804-131-0x0000000005ED0000-0x0000000005ED1000-memory.dmp

Filesize
4KB

Download
memory/1804-132-0x0000000005A70000-0x0000000005A71000-memory.dmp

Filesize
4KB

Download
memory/1804-133-0x0000000005B10000-0x0000000005B11000-memory.dmp

Filesize
4KB

Download
memory/1804-134-0x00000000059D0000-0x0000000005ECE000-memory.dmp

Filesize
5.0MB

Download
memory/1804-125-0x0000000000F00000-0x00000000013BE000-memory.dmp

Filesize
4.7MB

Download
memory/1804-138-0x0000000005EB0000-0x0000000005EB5000-memory.dmp

Filesize
20KB

Download
memory/1804-139-0x00000000069D0000-0x00000000069E9000-memory.dmp

Filesize
100KB

Download
memory/1804-140-0x0000000005EC0000-0x0000000005EC3000-memory.dmp

Filesize
12KB

Download
memory/1828-121-0x0000000000000000-mapping.dmp

Download
memory/2588-123-0x0000000000000000-mapping.dmp

Download