privateloader | 39782e1dfcff35684156da601fb153b7c4a9e468da8b211e0414548a63763e46

General

Target
58cd058bcb6a6a8e46978e5e08a19897.exe
Size 1.5MB
Sample231203-b91rysha4y
SHA256 39782e1dfcff35684156da601fb153b7c4a9e468da8b211e0414548a63763e46
MD5 58cd058bcb6a6a8e46978e5e08a19897
SHA1 caebbc9049ddc312feca285641282bd4a7d44508
SHA512 6008dab120c93a79b772bfd7f430999a1c268326329f393f4f85f08f58f48f4032c388b789b48608f1ee68f241f15a6d5d32b6e1d120324f632781684fc1e205
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	58cd058bcb6a6a8e46978e5e08a19897.exe

Loads dropped DLL 1 IoCs

pid	Process
2036	58cd058bcb6a6a8e46978e5e08a19897.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-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\Run\MaxLoonaFest131 = "C:\\Users\\Admin\\AppData\\Local\\MaxLoonaFest131\\MaxLoonaFest131.exe"	58cd058bcb6a6a8e46978e5e08a19897.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	58cd058bcb6a6a8e46978e5e08a19897.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	58cd058bcb6a6a8e46978e5e08a19897.exe
File opened for modification	C:\Windows\System32\GroupPolicy	58cd058bcb6a6a8e46978e5e08a19897.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	58cd058bcb6a6a8e46978e5e08a19897.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
2872	schtasks.exe
2716	schtasks.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2872	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	28
PID 2036 wrote to memory of 2872	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	28
PID 2036 wrote to memory of 2872	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	28
PID 2036 wrote to memory of 2872	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	28
PID 2036 wrote to memory of 2716	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	30
PID 2036 wrote to memory of 2716	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	30
PID 2036 wrote to memory of 2716	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	30
PID 2036 wrote to memory of 2716	2036	58cd058bcb6a6a8e46978e5e08a19897.exe	30

C:\Users\Admin\AppData\Local\Temp\58cd058bcb6a6a8e46978e5e08a19897.exe
"C:\Users\Admin\AppData\Local\Temp\58cd058bcb6a6a8e46978e5e08a19897.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2036
- 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:2872
- 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:2716

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 39782e1dfcff35684156da601fb153b7c4a9e468da8b211e0414548a63763e46
MD5 58cd058bcb6a6a8e46978e5e08a19897
SHA1 caebbc9049ddc312feca285641282bd4a7d44508
SHA512 6008dab120c93a79b772bfd7f430999a1c268326329f393f4f85f08f58f48f4032c388b789b48608f1ee68f241f15a6d5d32b6e1d120324f632781684fc1e205
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 39782e1dfcff35684156da601fb153b7c4a9e468da8b211e0414548a63763e46
MD5 58cd058bcb6a6a8e46978e5e08a19897
SHA1 caebbc9049ddc312feca285641282bd4a7d44508
SHA512 6008dab120c93a79b772bfd7f430999a1c268326329f393f4f85f08f58f48f4032c388b789b48608f1ee68f241f15a6d5d32b6e1d120324f632781684fc1e205
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