netsupport | 857b9f26409402199916903c1ca9415337ae1e8d415b8f1e588a75036375789c

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
06-05-2024 11:45

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General

Target

rr.exe
Size

5.2MB
MD5

61e7534842ae585f8edef8a748563311
SHA1

3c4acd86b5140afbe377ea4704c7f9d79b32e048
SHA256

857b9f26409402199916903c1ca9415337ae1e8d415b8f1e588a75036375789c
SHA512

cad88d94bbe905d4187441f52c8cd920d09c7f377e2e58e53ed72b3922171bd8540f1fc41229bf6dcbd57b77d038af14e6e85c194fe9ef4a76c8f18cb8a61bfd
SSDEEP

98304:qTYqfQjd7j/MYPfF7/xkA3qwh1Kq+NTWgh:qTcFHt/x53qMz+NTW

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	rr.exe

Executes dropped EXE 1 IoCs

pid	Process
1316	star.exe

Loads dropped DLL 6 IoCs

pid	Process
1316	star.exe
1316	star.exe
1316	star.exe
1316	star.exe
1316	star.exe
1316	star.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1316	star.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1316	star.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3704 wrote to memory of 1316	3704	rr.exe	82
PID 3704 wrote to memory of 1316	3704	rr.exe	82
PID 3704 wrote to memory of 1316	3704	rr.exe	82

C:\Users\Admin\AppData\Local\Temp\rr.exe
"C:\Users\Admin\AppData\Local\Temp\rr.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3704
- C:\Users\Admin\AppData\Roaming\star.exe
  "C:\Users\Admin\AppData\Roaming\star.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\HTCTL32.DLL

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
258B

MD5
113ffa5964cfed7f6ff134323154689b

SHA1
417c62ef8c4a8408476d91e6f2cad540d948bff9

SHA256
432e7638a9d18866a6bac6968ef5aef0da3719cb44dd39b741bfecd5dc9ed7ff

SHA512
a686e789ef8ae4372353eae5a2ecaf2b7da27f815678c9148536ced1029bb0ae5da7267d01c62ce5c0145574b35a8dd31477cee1c20106be4bd51eafce96c6b9

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

Filesize
3.6MB

MD5
00587238d16012152c2e951a087f2cc9

SHA1
c4e27a43075ce993ff6bb033360af386b2fc58ff

SHA256
63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

SHA512
637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

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C:\Users\Admin\AppData\Roaming\client32.ini

Filesize
916B

MD5
27e8e58f883bde5b8545285378f3b1e4

SHA1
fb878dd6a17850f57487222e11b1d4c80cf15ea2

SHA256
bfe89b49f3edd46a452da26039d45618316ef61d24a5b18308616e1a0dedfe98

SHA512
26c57aac8a12c34360b79037c46b76cfc1d64dc6697d097275c1513126f8ee45bbf904763f91cfebc66196e61b579ccad9a47772cc9ae738431472c308586d66

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C:\Users\Admin\AppData\Roaming\pcicapi.dll

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

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

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

Download Submit
C:\Users\Admin\AppData\Roaming\star.exe

Filesize
103KB

MD5
8d9709ff7d9c83bd376e01912c734f0a

SHA1
e3c92713ce1d7eaa5e2b1fabeb06cdc0bb499294

SHA256
49a568f8ac11173e3a0d76cff6bc1d4b9bdf2c35c6d8570177422f142dcfdbe3

SHA512
042ad89ed2e15671f5df67766d11e1fa7ada8241d4513e7c8f0d77b983505d63ebfb39fefa590a2712b77d7024c04445390a8bf4999648f83dbab6b0f04eb2ee

Download Submit