netsupport | bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7

General

Target

bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe
Size

2.0MB
MD5

b51e761b009c658073fd0dc66c8f808f
SHA1

8dd8a45980efcae93eec634987396a0a6a3e62e9
SHA256

bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7
SHA512

5566a09c50e5d05435a1edb1a7cefdc375e6f656acc69250ffb1a2a051f1a807eb41abc11a1bc489695a4ab80b11150c8f8d8a9867291ac4a33155397a260367
SSDEEP

49152:VIfd6RO0EkHbG+Ww6NbHHBp7k5hhelN6YawnqLKwgVR9:VI1P/wYt5ShAiYawbwW

Score

10^/10

netsupport discovery rat

Malware Config

Signatures

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

bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe

Executes dropped EXE 1 IoCs

Processes:

bild.exe

pid	Process
4508	bild.exe

Loads dropped DLL 5 IoCs

Processes:

bild.exe

pid	Process
4508	bild.exe
4508	bild.exe
4508	bild.exe
4508	bild.exe
4508	bild.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

bild.exebf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bild.exe

description	pid	Process
Token: SeSecurityPrivilege	4508	bild.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

bild.exe

pid	Process
4508	bild.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe

description	pid	Process	procid_target
PID 5036 wrote to memory of 4508	5036	bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe	85
PID 5036 wrote to memory of 4508	5036	bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe	85
PID 5036 wrote to memory of 4508	5036	bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe	85

C:\Users\Admin\AppData\Local\Temp\bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe
"C:\Users\Admin\AppData\Local\Temp\bf2165a4bdafb0945c8b370758e6d0b9ab145147e7ddab448a01b3b25c2ad8a7.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Public\Downloads\bild.exe
  "C:\Users\Public\Downloads\bild.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:4508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Downloads\HTCTL32.DLL

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

Download Submit
C:\Users\Public\Downloads\NSM.LIC

Filesize
257B

MD5
7067af414215ee4c50bfcd3ea43c84f0

SHA1
c331d410672477844a4ca87f43a14e643c863af9

SHA256
2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

SHA512
17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

Download Submit
C:\Users\Public\Downloads\PCICL32.dll

Filesize
3.6MB

MD5
00587238d16012152c2e951a087f2cc9

SHA1
c4e27a43075ce993ff6bb033360af386b2fc58ff

SHA256
63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

SHA512
637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

Download Submit
C:\Users\Public\Downloads\bild.exe

Filesize
103KB

MD5
8d9709ff7d9c83bd376e01912c734f0a

SHA1
e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

SHA256
49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

SHA512
042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

Download Submit
C:\Users\Public\Downloads\client32.ini

Filesize
702B

MD5
a4aa9219becdeec09159270bb041bb35

SHA1
2d08305017efb0a1ff7defdf66db80191ed9ccf8

SHA256
277b9bcb5778cd5dc167ed75528818b06ed12f3fd427339f3085f4db8a39ed2e

SHA512
4f7ce001da009fcba0c5beab572a16306d56fd91253c45d5196892142da78ec805982a4e1c136ad61471b5a951697eed76f9ee63d8b94eb64024a11e0fd0de42

Download Submit
C:\Users\Public\Downloads\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Public\Downloads\pcicapi.dll

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

Download Submit
C:\Users\Public\Downloads\pcichek.dll

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads