privateloader | a7d39dd9ddff6083843f1d5a8fb75023bf62ea1687aac447062d64193af9fb86

General

Target
28adc5b934f4ad42bcb9099b25e17632.exe
Size 1.5MB
Sample231202-ynnltsff4w
SHA256 a7d39dd9ddff6083843f1d5a8fb75023bf62ea1687aac447062d64193af9fb86
MD5 28adc5b934f4ad42bcb9099b25e17632
SHA1 d5290e45af1267990dac0964bcf09a7c6ff69577
SHA512 ecade7cbef2e94d23a08b8fbb5798fa339fe8033344767bc58a612fcf11e292c46b0aa804b051ad62a977fc27f1408852fdc1d0b36207a7fc08d21f927a8f0f2
SSDEEP 24576:2opGDjnvrPpkjos0OtjcFc5kM49dj+IuxWQOIjuJuVvhbqL0HtFcgekRP9dT0WBI:OnvrPGT0Egyudc4tI3bqL0NFchaP9dTO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

privateloader risepro loader persistence stealer

Malware Config

Extracted

Family

risepro

C2

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	28adc5b934f4ad42bcb9099b25e17632.exe

Loads dropped DLL 1 IoCs

pid	Process
2136	28adc5b934f4ad42bcb9099b25e17632.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-1-5-21-3618187007-3650799920-3290345941-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe"	28adc5b934f4ad42bcb9099b25e17632.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	28adc5b934f4ad42bcb9099b25e17632.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	28adc5b934f4ad42bcb9099b25e17632.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	28adc5b934f4ad42bcb9099b25e17632.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	28adc5b934f4ad42bcb9099b25e17632.exe

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

System Information Discovery
T1082

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
2636	schtasks.exe
2664	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 2636	2136	28adc5b934f4ad42bcb9099b25e17632.exe	28
PID 2136 wrote to memory of 2636	2136	28adc5b934f4ad42bcb9099b25e17632.exe	28
PID 2136 wrote to memory of 2636	2136	28adc5b934f4ad42bcb9099b25e17632.exe	28
PID 2136 wrote to memory of 2636	2136	28adc5b934f4ad42bcb9099b25e17632.exe	28
PID 2136 wrote to memory of 2664	2136	28adc5b934f4ad42bcb9099b25e17632.exe	30
PID 2136 wrote to memory of 2664	2136	28adc5b934f4ad42bcb9099b25e17632.exe	30
PID 2136 wrote to memory of 2664	2136	28adc5b934f4ad42bcb9099b25e17632.exe	30
PID 2136 wrote to memory of 2664	2136	28adc5b934f4ad42bcb9099b25e17632.exe	30

C:\Users\Admin\AppData\Local\Temp\28adc5b934f4ad42bcb9099b25e17632.exe
"C:\Users\Admin\AppData\Local\Temp\28adc5b934f4ad42bcb9099b25e17632.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2136
- 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:2636
- 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:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

OfficeTrackerNMP131.exe

Path C:\ProgramData\OfficeTrackerNMP131\OfficeTrackerNMP131.exe
Size 1.5MB
SHA256 a7d39dd9ddff6083843f1d5a8fb75023bf62ea1687aac447062d64193af9fb86
MD5 28adc5b934f4ad42bcb9099b25e17632
SHA1 d5290e45af1267990dac0964bcf09a7c6ff69577
SHA512 ecade7cbef2e94d23a08b8fbb5798fa339fe8033344767bc58a612fcf11e292c46b0aa804b051ad62a977fc27f1408852fdc1d0b36207a7fc08d21f927a8f0f2
SSDEEP 24576:2opGDjnvrPpkjos0OtjcFc5kM49dj+IuxWQOIjuJuVvhbqL0HtFcgekRP9dT0WBI:OnvrPGT0Egyudc4tI3bqL0NFchaP9dTO
MD5 SHA1 SHA512 SSDEEP

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FANBooster131.exe

Path \Users\Admin\AppData\Local\Temp\FANBooster131\FANBooster131.exe
Size 1.5MB
SHA256 a7d39dd9ddff6083843f1d5a8fb75023bf62ea1687aac447062d64193af9fb86
MD5 28adc5b934f4ad42bcb9099b25e17632
SHA1 d5290e45af1267990dac0964bcf09a7c6ff69577
SHA512 ecade7cbef2e94d23a08b8fbb5798fa339fe8033344767bc58a612fcf11e292c46b0aa804b051ad62a977fc27f1408852fdc1d0b36207a7fc08d21f927a8f0f2
SSDEEP 24576:2opGDjnvrPpkjos0OtjcFc5kM49dj+IuxWQOIjuJuVvhbqL0HtFcgekRP9dT0WBI:OnvrPGT0Egyudc4tI3bqL0NFchaP9dTO
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads