privateloader | 9596077ce994b0a259cad7d45f7c848a763d913ae2fb3e86c21ec4b15b1255e5

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
11/12/2023, 12:31

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General

Target

good.exe
Size

1.6MB
MD5

81e30f580f1a0b6d719c84658469179d
SHA1

125c7c16efadafcb7e8c9374c4b034f8714f5da1
SHA256

9596077ce994b0a259cad7d45f7c848a763d913ae2fb3e86c21ec4b15b1255e5
SHA512

2d02bfe821a7e7b03f91ba53b9874f2420bcf237ae14d97b77753c30e74979286b0a3ca431724f5746462000c9fd6756da24937b52ef9ef2d8efe80d2dd33770
SSDEEP

49152:qWg8wUmZOzqiavjDUJO/WH89ctcO0ljbbQnIQGotBKqy8TJCHEGU42sn6:ZiUmZOzqiavjDUM/WH89y8bboGO

Score

10^/10

privateloader risepro collection discovery loader persistence spyware stealer

Malware Config

Extracted

Family

risepro

193.233.132.51

Signatures

PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
loader privateloader
RisePro
RisePro stealer is an infostealer distributed by PrivateLoader.
stealer risepro

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FANBooster131.lnk	good.exe

Loads dropped DLL 1 IoCs

pid	Process
2880	good.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	good.exe
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	good.exe
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	good.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe"	good.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	ipinfo.io
5	ipinfo.io

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	good.exe
File opened for modification	C:\Windows\System32\GroupPolicy	good.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	good.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	good.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	good.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	good.exe

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/Job

T1053

pid	Process
2156	schtasks.exe
2792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2880	good.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2156	2880	good.exe	29
PID 2880 wrote to memory of 2156	2880	good.exe	29
PID 2880 wrote to memory of 2156	2880	good.exe	29
PID 2880 wrote to memory of 2156	2880	good.exe	29
PID 2880 wrote to memory of 2792	2880	good.exe	31
PID 2880 wrote to memory of 2792	2880	good.exe	31
PID 2880 wrote to memory of 2792	2880	good.exe	31
PID 2880 wrote to memory of 2792	2880	good.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	good.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	good.exe

C:\Users\Admin\AppData\Local\Temp\good.exe
"C:\Users\Admin\AppData\Local\Temp\good.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:2880
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 HR" /sc HOURLY /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:2156
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe" /tn "OfficeTrackerNMP131 LG" /sc ONLOGON /rl HIGHEST
  2⤵
  - Creates scheduled task(s)
  PID:2792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe

Filesize
1.0MB

MD5
b72ab0b80469f11937bee853346082bb

SHA1
66cb94dfbaa03b81f36f0f66276dcb151e1d41ef

SHA256
f4b04c6894ffdb2dbff37b857809b74270ed3b7c419c9078ed25254d76a326ac

SHA512
e101fffc43761b6ea81a91ba8d9a3fe21c659f9e2fbec9308cb59719a46b33cc0b51998c99f251a09c9f674fb0abccba14cc13320a1b3ec30bef732aeaf5b351

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar11C1.tmp

Filesize
171KB

MD5
9c0c641c06238516f27941aa1166d427

SHA1
64cd549fb8cf014fcd9312aa7a5b023847b6c977

SHA256
4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

SHA512
936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

Download Submit
C:\Users\Admin\AppData\Local\Temp\grandUIAJQsaFvfDRTMQ8\information.txt

Filesize
3KB

MD5
a3ccf1db29ace0bb77cfa74eec3e0935

SHA1
1526cd3dd6d870a7cdeb79ba82cd32d0077f4dd1

SHA256
6d1402a6a77d942f8ef214148a558eabf08edfd9afade6bdbf9549e6a8f012e1

SHA512
678547768afd929f2b3c37af3fe3c54ff73d3406dbf9013237944988352977ae96840ede106c5972b72b5e6ad6af8a296e2265b84e53d972251857ed58183e96

Download Submit
\Users\Admin\AppData\Local\Temp\FANBooster131\FANBooster131.exe

Filesize
1.0MB

MD5
5f12124200f88140f369cfacbdeb5165

SHA1
7a2fd6ea77cd2461849947862c26055e5613baca

SHA256
473986bd4b09a22c38f95d90710e3638494d0bbe5402cdaa119244c57f7e67ee

SHA512
9539fd079965d510739a09d2110b71d371896330e602ae545b1673edd288f715786b13fa60f57a11dab03c1a0d0f1a00f8c77e326e21dbc9fbf15ba2eaa49469

Download Submit