netsupport | b6526c5fe65b1eee59b6c9c44da572748f0ef22427e3d331a7a5d14111845771

Analysis

max time kernel
149s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 14:40

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General

Target

c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe
Size

2.5MB
MD5

4cc1911165a8f68dd066502c3fb6fe9a
SHA1

d8f988c5a6a3b9957c53bce3f5a0fe1c8fc618e1
SHA256

c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af
SHA512

49346e0a6478abc41c0f186b430304c6059573830d68161868b777dab96b67175a19d05b738852d35ec6ccf4a594a3441a1641ba3e25f15874edad9d9be41a2e
SSDEEP

49152:jsOTd0VUXdCBTQsmARXBvK4DMitfle7+xaFWg067EcSUCFfw0:EGYnXZK44ilYFWg0HcSdFY0

Score

10^/10

netsupport rat

Malware Config

Signatures

NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
rat netsupport

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe

Drops startup file 1 IoCs

Processes:

c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\autorunns12.ini.lnk	c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid process

880 client32.exe
Loads dropped DLL 6 IoCs

Processes:

client32.exe

pid process

880 client32.exe
880 client32.exe
880 client32.exe
880 client32.exe
880 client32.exe
880 client32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

client32.exe

description pid process

Token: SeSecurityPrivilege 880 client32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid process

880 client32.exe

pid	process
880	client32.exe

pid	process
880	client32.exe
880	client32.exe
880	client32.exe
880	client32.exe
880	client32.exe
880	client32.exe

description	pid	process
Token: SeSecurityPrivilege	880	client32.exe

pid	process
880	client32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe

description	pid	process	target process
PID 1176 wrote to memory of 880	1176	c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe	client32.exe
PID 1176 wrote to memory of 880	1176	c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe	client32.exe
PID 1176 wrote to memory of 880	1176	c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe	client32.exe

C:\Users\Admin\AppData\Local\Temp\c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe
"C:\Users\Admin\AppData\Local\Temp\c3dfec759e0e2c8c5b9c57ae941ec7e0fe902bb5eb3ac9c44b47296bbc66f8af.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1176

C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.exe
"C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:880

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\UpdatSupp1443\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\HTCTL32.DLL

Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\NSM.LIC

Filesize
259B

MD5
6b5215aa2cf4128127b390c5bcb90ce7

SHA1
100b116bae562f066f61cc5f0b339d466f90e0ff

SHA256
99dfc0b55bf27abc581f37c914ed0ca0522ad9f9685b3e4f73079e87ebbdbcba

SHA512
98ce6521c46880ee8e98796fc4e712f9e858201ca89a352884d7b0325b43d6e2de2c0a87ba504db5c9409aa699e91e26e616e285e26543388c6395696b6daa5c

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\PCICHEK.DLL

Filesize
31KB

MD5
d6fcd63035d9b341c7e165e6e553d3cc

SHA1
3101fef674479b8b63da592d6b8feebfce7fd503

SHA256
265623112eafca985d5acd9db3b5f9e00b39cc1f15cdd5b181d3eb0d413b97de

SHA512
e7136af44c3a69126517046fb36fed38f0c396d2a0a43c00feee3438125b38f91efa6d5e2ba18750924a35431b347f30b71382a9549d24c397f8c5871d50aef3

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\PCICL32.DLL

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\PCICL32.dll

Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.exe

Filesize
117KB

MD5
c0eb3eac96511077dafc0afa64c6388c

SHA1
33e81f25493eda3bbf0b7cdcddd523547fa6c31e

SHA256
eec4f18f3655f7eab0c08783ad42d2b3ce3ef21ecad7394e165f11acdb41c42a

SHA512
2632bef55323d9a272e1519e2b2792527d28cbd9fe6a9f9d253e5729978be0de6f36b8e3b2acee70449ba22a33efb41c82c82afe19dad14698b3ada0006ca7fc

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.exe

Filesize
117KB

MD5
c0eb3eac96511077dafc0afa64c6388c

SHA1
33e81f25493eda3bbf0b7cdcddd523547fa6c31e

SHA256
eec4f18f3655f7eab0c08783ad42d2b3ce3ef21ecad7394e165f11acdb41c42a

SHA512
2632bef55323d9a272e1519e2b2792527d28cbd9fe6a9f9d253e5729978be0de6f36b8e3b2acee70449ba22a33efb41c82c82afe19dad14698b3ada0006ca7fc

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.exe

Filesize
117KB

MD5
c0eb3eac96511077dafc0afa64c6388c

SHA1
33e81f25493eda3bbf0b7cdcddd523547fa6c31e

SHA256
eec4f18f3655f7eab0c08783ad42d2b3ce3ef21ecad7394e165f11acdb41c42a

SHA512
2632bef55323d9a272e1519e2b2792527d28cbd9fe6a9f9d253e5729978be0de6f36b8e3b2acee70449ba22a33efb41c82c82afe19dad14698b3ada0006ca7fc

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\client32.ini

Filesize
970B

MD5
cb06bb1ae473b3420d19edd2eb6dd078

SHA1
2110d6370b4838c027693b0f9bba7e5620bf0517

SHA256
e61420ed7025143cace025adbf0290130fa4fac23e4662c7fbbe3160b899e2ac

SHA512
c8015c5e8c6000c60f94f413ab3dab8b7d7215998a0ae751c5ea886e7732e5dacafbd8ece4d7f485f8480274e2dcbce4e53eafec196a4c515c405654b7cd623f

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\pcicapi.dll

Filesize
48KB

MD5
d3d2829d36586278c2bcb3f547d6e849

SHA1
72d9fd2397310de717b2bde13ea1483d9eb9af02

SHA256
ae84394ac568c590225d4470ed1a94be94240cbccb3c2b985bdfc4686d8afac8

SHA512
dd16e46e83e455c1b2a1c106926851ad289d5c83c1ee94630ee0457c0793c9a8a7ab3d37d64b978a3c8057ed9eceae2fae56ac97b39b3b5172f8472fbb49973c

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\pcicapi.dll

Filesize
48KB

MD5
d3d2829d36586278c2bcb3f547d6e849

SHA1
72d9fd2397310de717b2bde13ea1483d9eb9af02

SHA256
ae84394ac568c590225d4470ed1a94be94240cbccb3c2b985bdfc4686d8afac8

SHA512
dd16e46e83e455c1b2a1c106926851ad289d5c83c1ee94630ee0457c0793c9a8a7ab3d37d64b978a3c8057ed9eceae2fae56ac97b39b3b5172f8472fbb49973c

Download Submit
C:\Users\Admin\AppData\Roaming\UpdatSupp1443\pcichek.dll

Filesize
31KB

MD5
d6fcd63035d9b341c7e165e6e553d3cc

SHA1
3101fef674479b8b63da592d6b8feebfce7fd503

SHA256
265623112eafca985d5acd9db3b5f9e00b39cc1f15cdd5b181d3eb0d413b97de

SHA512
e7136af44c3a69126517046fb36fed38f0c396d2a0a43c00feee3438125b38f91efa6d5e2ba18750924a35431b347f30b71382a9549d24c397f8c5871d50aef3

Download Submit