46dc49be65d7165e2a6009854a4f27f0088230199e61e0555cb1bd266535874a

Analysis

max time kernel
4s
max time network
22s
platform
windows10_x64
resource
win10
submitted
11-08-2020 12:30

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General

Target

foo/acf0b7f4fe980501192187bb9b8e20c4.exe

Score

8^/10

evasion persistence trojan

Malware Config

Signatures

Executes dropped EXE 7 IoCs

Processes:

netio.exenetio.exenetio.exenetio.exenetio.exenetio.exenetio.exe

pid process

3888 netio.exe
3832 netio.exe
3476 netio.exe
3464 netio.exe
2528 netio.exe
500 netio.exe
2996 netio.exe

pid	process
3888	netio.exe
3832	netio.exe
3476	netio.exe
3464	netio.exe
2528	netio.exe
500	netio.exe
2996	netio.exe

Adds Run key to start application 2 TTPs 12 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netio.exeacf0b7f4fe980501192187bb9b8e20c4.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run	netio.exe
Key deleted	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run	netio.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	netio.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	acf0b7f4fe980501192187bb9b8e20c4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Network Host = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Network Host\\netio.exe"	acf0b7f4fe980501192187bb9b8e20c4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Network Host = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Network Host\\netio.exe"	netio.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	netio.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Network Host = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Network Host\\netio.exe"	netio.exe
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	netio.exe
Key deleted	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	netio.exe
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run	acf0b7f4fe980501192187bb9b8e20c4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Network Host = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Network Host\\netio.exe"	acf0b7f4fe980501192187bb9b8e20c4.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

netio.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA netio.exe

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

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

netio.exe

description	ioc	process
File opened (read-only)	\??\i:	netio.exe
File opened (read-only)	\??\o:	netio.exe
File opened (read-only)	\??\q:	netio.exe
File opened (read-only)	\??\w:	netio.exe
File opened (read-only)	\??\h:	netio.exe
File opened (read-only)	\??\n:	netio.exe
File opened (read-only)	\??\s:	netio.exe
File opened (read-only)	\??\e:	netio.exe
File opened (read-only)	\??\f:	netio.exe
File opened (read-only)	\??\g:	netio.exe
File opened (read-only)	\??\k:	netio.exe
File opened (read-only)	\??\p:	netio.exe
File opened (read-only)	\??\t:	netio.exe
File opened (read-only)	\??\u:	netio.exe
File opened (read-only)	\??\v:	netio.exe
File opened (read-only)	\??\x:	netio.exe
File opened (read-only)	\??\z:	netio.exe
File opened (read-only)	\??\a:	netio.exe
File opened (read-only)	\??\b:	netio.exe
File opened (read-only)	\??\j:	netio.exe
File opened (read-only)	\??\l:	netio.exe
File opened (read-only)	\??\m:	netio.exe
File opened (read-only)	\??\r:	netio.exe
File opened (read-only)	\??\y:	netio.exe

NTFS ADS 6 IoCs

Processes:

netio.exeacf0b7f4fe980501192187bb9b8e20c4.exenetio.exenetio.exenetio.exenetio.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	netio.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	acf0b7f4fe980501192187bb9b8e20c4.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	netio.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	netio.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	netio.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\foo\winmgmts:\root\cimv2	netio.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

netio.exe

description pid process

Token: SeDebugPrivilege 3888 netio.exe

description	pid	process
Token: SeDebugPrivilege	3888	netio.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

acf0b7f4fe980501192187bb9b8e20c4.exenetio.exe

description	pid	process	target process
PID 4076 wrote to memory of 3888	4076	acf0b7f4fe980501192187bb9b8e20c4.exe	netio.exe
PID 4076 wrote to memory of 3888	4076	acf0b7f4fe980501192187bb9b8e20c4.exe	netio.exe
PID 4076 wrote to memory of 3888	4076	acf0b7f4fe980501192187bb9b8e20c4.exe	netio.exe
PID 3888 wrote to memory of 3832	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3832	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3832	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3476	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3476	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3476	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3464	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3464	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 3464	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2528	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2528	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2528	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 500	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 500	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 500	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2996	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2996	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 2996	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 508	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 508	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 508	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 640	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 640	3888	netio.exe	netio.exe
PID 3888 wrote to memory of 640	3888	netio.exe	netio.exe

C:\Users\Admin\AppData\Local\Temp\foo\acf0b7f4fe980501192187bb9b8e20c4.exe
"C:\Users\Admin\AppData\Local\Temp\foo\acf0b7f4fe980501192187bb9b8e20c4.exe"
1⤵
- Adds Run key to start application
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4076
- C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
  "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Enumerates connected drives
  - NTFS ADS
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3888
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "sendmail"
    3⤵
    - Executes dropped EXE
    - NTFS ADS
    PID:3832
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "proxy"
    3⤵
    - Executes dropped EXE
    - NTFS ADS
    PID:3476
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    - Executes dropped EXE
    - NTFS ADS
    PID:3464
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    - Executes dropped EXE
    - NTFS ADS
    PID:2528
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    - Executes dropped EXE
    PID:500
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    - Executes dropped EXE
    PID:2996
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    PID:508
- - C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe
    "C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe" "scan"
    3⤵
    PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Network Host\netio.exe

MD5
acf0b7f4fe980501192187bb9b8e20c4

SHA1
f627019b79fd174403cb81c9a59b1ed81b658e81

SHA256
d8f2f635135cc57f0d566646bbe5c6f22be2aa4d9fcab74c272b22f7e4b28f6c

SHA512
df3afaf21da7bfca412a6bcfea39913904d5a95767220f30e07d23487276fbce7bb489bf12b11f68e2a5651fc3c2b4041d76e201d3416a8bea460418d7a25683

Download Submit
memory/500-10-0x0000000000000000-mapping.dmp

Download
memory/2528-8-0x0000000000000000-mapping.dmp

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memory/2996-12-0x0000000000000000-mapping.dmp

Download
memory/3464-7-0x0000000000000000-mapping.dmp

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memory/3476-5-0x0000000000000000-mapping.dmp

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memory/3832-3-0x0000000000000000-mapping.dmp

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memory/3888-0-0x0000000000000000-mapping.dmp

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