nanocore | 7d099dcd6d912e29120d1eca72f100724fa776e8a1f80b22fbb52e6de905d324

Analysis

max time kernel
140s
max time network
173s
platform
windows7_x64
resource
win7-en-20210920
submitted
14-10-2021 15:21

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General

Target

bd8f7a95d63891f57462cfa5b2179888.exe
Size

973KB
MD5

bd8f7a95d63891f57462cfa5b2179888
SHA1

66839ede4459f5df3c228221ef563f6fdfef5db3
SHA256

7d099dcd6d912e29120d1eca72f100724fa776e8a1f80b22fbb52e6de905d324
SHA512

9bc81d9fe1c39b9ce8301d68eebac20ff78a4c6886f01a9c8541561333e29b3e6f721101c490ff4262abe295f8f940aefad5f54cf62ef3d93448132e2b1606b5

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:

woag.pifRegSvcs.exe

pid process

852 woag.pif
1648 RegSvcs.exe

pid	process
852	woag.pif
1648	RegSvcs.exe

Loads dropped DLL 5 IoCs

Processes:

bd8f7a95d63891f57462cfa5b2179888.exewoag.pif

pid	process
1368	bd8f7a95d63891f57462cfa5b2179888.exe
1368	bd8f7a95d63891f57462cfa5b2179888.exe
1368	bd8f7a95d63891f57462cfa5b2179888.exe
1368	bd8f7a95d63891f57462cfa5b2179888.exe
852	woag.pif

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

woag.pifRegSvcs.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	woag.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "c:\\69392457\\woag.pif c:\\69392457\\tidhtdr.iun"	woag.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "c:\\69392457\\Update.vbs"	woag.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.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:

woag.pif

description pid process target process

PID 852 set thread context of 1648 852 woag.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 852 set thread context of 1648	852	woag.pif	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

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

1792 schtasks.exe
1812 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RegSvcs.exe

pid process

1648 RegSvcs.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
1648 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1648 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 1648 RegSvcs.exe
Token: SeDebugPrivilege 1648 RegSvcs.exe

pid	process
1792	schtasks.exe
1812	schtasks.exe

pid	process
1648	RegSvcs.exe
1648	RegSvcs.exe
1648	RegSvcs.exe
1648	RegSvcs.exe
1648	RegSvcs.exe
1648	RegSvcs.exe

pid	process
1648	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1648	RegSvcs.exe
Token: SeDebugPrivilege	1648	RegSvcs.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

bd8f7a95d63891f57462cfa5b2179888.exewoag.pifRegSvcs.exe

description	pid	process	target process
PID 1368 wrote to memory of 852	1368	bd8f7a95d63891f57462cfa5b2179888.exe	woag.pif
PID 1368 wrote to memory of 852	1368	bd8f7a95d63891f57462cfa5b2179888.exe	woag.pif
PID 1368 wrote to memory of 852	1368	bd8f7a95d63891f57462cfa5b2179888.exe	woag.pif
PID 1368 wrote to memory of 852	1368	bd8f7a95d63891f57462cfa5b2179888.exe	woag.pif
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 852 wrote to memory of 1648	852	woag.pif	RegSvcs.exe
PID 1648 wrote to memory of 1792	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1792	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1792	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1792	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1812	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1812	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1812	1648	RegSvcs.exe	schtasks.exe
PID 1648 wrote to memory of 1812	1648	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\bd8f7a95d63891f57462cfa5b2179888.exe
"C:\Users\Admin\AppData\Local\Temp\bd8f7a95d63891f57462cfa5b2179888.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1368

C:\69392457\woag.pif
"C:\69392457\woag.pif" tidhtdr.iun
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:852

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:1648

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp274F.tmp"
4⤵
- Creates scheduled task(s)
PID:1792

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2CBC.tmp"
4⤵
- Creates scheduled task(s)
PID:1812

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:\69392457\dbfiopvsmo.hfk
MD5
76545cc5c7f1654695f3a2a8c236c2c0

SHA1
f9c4502666816b9f14ee3f6e6e45f9153aae666d

SHA256
645c7a554e0d13084a36d160296a758bcbc2fd7ac41c6cda57f2f4765a2bff1b

SHA512
16c478876f8c77432cc221fd8de937300833e1be587334c0843484a0d5b359c089f43f37d4d5e99b930634e19e6001235f7b22f96afc9805fde2329007e64088

Download Submit
C:\69392457\pmuecfub.jpg
MD5
c051b0139c31144b7bb8e0c0e6e57114

SHA1
b98ef6053a79828ae5f2e9721be30e3b0a6a66f7

SHA256
44fddcef0c759223012ab7d91c0858fd785e96d2e9ef41a298fc4190069e13ec

SHA512
9cb0bafab11de46016e448a734bf08007b9181ff7a26202ff9c2b42592caed86c6e894f60d0e798e0accdb13ffa51ffdaa2c02b255ebdcc14d48fb9ce4305607

Download Submit
C:\69392457\tidhtdr.iun
MD5
5c4c60c21b8272dc02b0adc2c8882b39

SHA1
f238d2469d715493a4dfa8e2901a2769cf647914

SHA256
99744433ad0f06fb3f8eabf747d1b0763a6e7cf54f8a5f08d4e7caad61d0dafb

SHA512
90fa6778273925400507ee294e5aa5c7d6f758967b3f395ad8643229a038eb8d40c640bdd104c2a94ffea097b27c1d0ad8eef1693125cb5af9c29e2bd426c777

Download Submit
C:\69392457\woag.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\tmp274F.tmp
MD5
95aceabc58acad5d73372b0966ee1b35

SHA1
2293b7ad4793cf574b1a5220e85f329b5601040a

SHA256
8d9642e1c3cd1e0b5d1763de2fb5e605ba593e5a918b93eec15acbc5dcc48fd4

SHA512
00760dfc9d8caf357f0cee5336e5448a4cca18e32cc63e1a69c16e34fe00ea29acd5b2cf278e86c6f9c3e66a1b176d27ed927361848212e6bf1fade7d3d06e74

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2CBC.tmp
MD5
c4aecdef99eba873119e79616df3f4b0

SHA1
b1b3af52655fb633eed909dfed05b64fbbfac37c

SHA256
24fd0d87bea36a024449a95f808aaa174e4ed9003cb8a427b67c02411b8a2e0b

SHA512
e3f44b07267fccf4f5abd4efe80f2b037ddadc4cb898bdfca9d21ac5d79fcac828950065c2060d3ce125ee971fc3096183afee5287ba9951fbbda7257d8ed8d4

Download Submit
\69392457\woag.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\69392457\woag.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\69392457\woag.pif
MD5
8e699954f6b5d64683412cc560938507

SHA1
8ca6708b0f158eacce3ac28b23c23ed42c168c29

SHA256
c9a2399cc1ce6f71db9da2f16e6c025bf6cb0f4345b427f21449cf927d627a40

SHA512
13035106149c8d336189b4a6bdaf25e10ac0b027baea963b3ec66a815a572426b2e9485258447cf1362802a0f03a2aa257b276057590663161d9d55d5b737b02

Download Submit
\69392457\woag.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/852-58-0x0000000000000000-mapping.dmp

Download
memory/1368-53-0x00000000768C1000-0x00000000768C3000-memory.dmp

Filesize
8KB

Download
memory/1648-66-0x0000000000390000-0x0000000000A45000-memory.dmp

Filesize
6.7MB

Download
memory/1648-70-0x0000000000390000-0x0000000000A45000-memory.dmp

Filesize
6.7MB

Download
memory/1648-72-0x0000000005370000-0x0000000005371000-memory.dmp

Filesize
4KB

Download
memory/1648-67-0x00000000003AE792-mapping.dmp

Download
memory/1648-65-0x0000000000390000-0x0000000000A45000-memory.dmp

Filesize
6.7MB

Download
memory/1648-77-0x0000000000B80000-0x0000000000B85000-memory.dmp

Filesize
20KB

Download
memory/1648-78-0x0000000000B90000-0x0000000000B96000-memory.dmp

Filesize
24KB

Download
memory/1648-79-0x0000000000D60000-0x0000000000D79000-memory.dmp

Filesize
100KB

Download
memory/1648-80-0x0000000000D80000-0x0000000000D83000-memory.dmp

Filesize
12KB

Download
memory/1792-73-0x0000000000000000-mapping.dmp

Download
memory/1812-75-0x0000000000000000-mapping.dmp

Download