privateloader | 6ffd157eb781504eadd72996c2cdbd4881034ffb7f7d2bc4b96d4daa61fb4d86 | Triage

Analysis

max time kernel
340s
max time network
318s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
15-07-2024 11:25

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General

Target

6692518842cd4_BotClient.exe
Size

3.7MB
MD5

2ab891d9c6b24c5462e32a0bab3d1fec
SHA1

4dbb387d2fce2b47ff3699468590466505ba7554
SHA256

6ffd157eb781504eadd72996c2cdbd4881034ffb7f7d2bc4b96d4daa61fb4d86
SHA512

0317a30e9e70d0ac8416f14a91119504fc40e9a72ee34d358741ebf820367abb3b18e2c64987f6d86d3c4a8952621aebeca83fa027d66edb456c749e56d42d89
SSDEEP

98304:rm3o0QMznQ6mUOAj4H0KikjBY5fgq/crZN:GmMzQ6eAj4HbjBOIkS

Score

10^/10

privateloader risepro evasion loader persistence stealer themida trojan

Malware Config

Extracted

Family

risepro

C2

194.110.13.70

77.105.133.27

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
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

6692518842cd4_BotClient.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 6692518842cd4_BotClient.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

Processes:

6692518842cd4_BotClient.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6692518842cd4_BotClient.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6692518842cd4_BotClient.exe

Drops startup file 1 IoCs

Processes:

6692518842cd4_BotClient.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PowerExpertNT.lnk	6692518842cd4_BotClient.exe

Themida packer 12 IoCs

Detects Themida, an advanced Windows software protection system.

Processes:

resource	yara_rule
behavioral2/memory/1680-0-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-7-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-10-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-12-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-11-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-9-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-8-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-13-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
C:\ProgramData\WinTrackerSP\WinTrackerSP.exe	themida
behavioral2/memory/1680-21-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-35-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida
behavioral2/memory/1680-47-0x0000000000CD0000-0x000000000165F000-memory.dmp	themida

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

6692518842cd4_BotClient.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-160447019-1232603106-4168707212-1000\Software\Microsoft\Windows\CurrentVersion\Run\ExtreamFanV5 = "C:\\Users\\Admin\\AppData\\Local\\ExtreamFanV5\\ExtreamFanV5.exe"	6692518842cd4_BotClient.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

Processes:

6692518842cd4_BotClient.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6692518842cd4_BotClient.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

6692518842cd4_BotClient.exe

pid process

1680 6692518842cd4_BotClient.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exeschtasks.exe

pid process

4028 schtasks.exe
4352 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

6692518842cd4_BotClient.exe

pid process

1680 6692518842cd4_BotClient.exe
1680 6692518842cd4_BotClient.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6692518842cd4_BotClient.exe

description	pid	process	target process
PID 1680 wrote to memory of 4028	1680	6692518842cd4_BotClient.exe	schtasks.exe
PID 1680 wrote to memory of 4028	1680	6692518842cd4_BotClient.exe	schtasks.exe
PID 1680 wrote to memory of 4028	1680	6692518842cd4_BotClient.exe	schtasks.exe
PID 1680 wrote to memory of 4352	1680	6692518842cd4_BotClient.exe	schtasks.exe
PID 1680 wrote to memory of 4352	1680	6692518842cd4_BotClient.exe	schtasks.exe
PID 1680 wrote to memory of 4352	1680	6692518842cd4_BotClient.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\6692518842cd4_BotClient.exe
"C:\Users\Admin\AppData\Local\Temp\6692518842cd4_BotClient.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Drops startup file
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /RU "Admin" /tr "C:\ProgramData\WinTrackerSP\WinTrackerSP.exe" /tn "WinTrackerSP HR" /sc HOURLY /rl HIGHEST
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4028

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /RU "Admin" /tr "C:\ProgramData\WinTrackerSP\WinTrackerSP.exe" /tn "WinTrackerSP LG" /sc ONLOGON /rl HIGHEST
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scheduled Task

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Defense Evasion

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\WinTrackerSP\WinTrackerSP.exe

Filesize
3.7MB

MD5
2ab891d9c6b24c5462e32a0bab3d1fec

SHA1
4dbb387d2fce2b47ff3699468590466505ba7554

SHA256
6ffd157eb781504eadd72996c2cdbd4881034ffb7f7d2bc4b96d4daa61fb4d86

SHA512
0317a30e9e70d0ac8416f14a91119504fc40e9a72ee34d358741ebf820367abb3b18e2c64987f6d86d3c4a8952621aebeca83fa027d66edb456c749e56d42d89

Download Submit
memory/1680-10-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-2-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-11-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-9-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-4-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-6-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-7-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-0-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-47-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-3-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-5-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-8-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-13-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-1-0x00000000758F6000-0x00000000758F7000-memory.dmp

Filesize
4KB

Download
memory/1680-21-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-22-0x0000000075800000-0x00000000759C2000-memory.dmp

Filesize
1.8MB

Download
memory/1680-35-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download
memory/1680-12-0x0000000000CD0000-0x000000000165F000-memory.dmp

Filesize
9.6MB

Download