privateloader | 649c75d99b6d8e237d8a8d0142796fcbfa7381674628201f474b58039144ec2a

Resubmissions

15-11-2024 18:05

241115-wpjcdsxrdy 10

11-11-2024 21:40

241111-1h6xbsxcql 10

03-12-2022 17:54

221203-wg4ncscc33 10

Analysis

max time kernel
148s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 21:40

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General

Target

85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
Size

4.8MB
MD5

854d5dfe2d5193aa4150765c123df8ad
SHA1

1b21d80c4beb90b03d795cf11145619aeb3a4f37
SHA256

85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45
SHA512

48ed604ea966a35cc16631ce5da692bb236badafdb6d3d01ef3a27ab5a9c1ea6a19d6e8209c894ab292614cfbd355c2ca96401fd4dbb9a3abbfd886cddae77cc
SSDEEP

98304:GiIOIQKetb5uDv/tFAOoLKSIc5EP61wNYZiu7JfQmEM9:rIbCEA1EP614g9fQm59

Score

10^/10

privateloader discovery evasion loader trojan

Malware Config

Extracted

Family

privateloader

208.67.104.60

Signatures

PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
loader privateloader
Privateloader family
privateloader

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

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

pid	Process
5024	schtasks.exe
4420	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 5024	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	89
PID 4120 wrote to memory of 5024	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	89
PID 4120 wrote to memory of 5024	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	89
PID 4120 wrote to memory of 4420	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	91
PID 4120 wrote to memory of 4420	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	91
PID 4120 wrote to memory of 4420	4120	85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe	91

C:\Users\Admin\AppData\Local\Temp\85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe
"C:\Users\Admin\AppData\Local\Temp\85b73b7b3c9acc6648beb77ce878ebeea26a2a949bf17c3184f2bd4544d12b45.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\Program Files (x86)\PowerControl\PowerControl_Svc.exe" /tn "PowerControl HR" /sc HOURLY /rl HIGHEST
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5024
- C:\Windows\SysWOW64\schtasks.exe
  schtasks /create /f /RU "Admin" /tr "C:\Program Files (x86)\PowerControl\PowerControl_Svc.exe" /tn "PowerControl LG" /sc ONLOGON /rl HIGHEST
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4120-0-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-1-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-3-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

Filesize
4KB

Download
memory/4120-4-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/4120-8-0x00000000012C0000-0x00000000012C1000-memory.dmp

Filesize
4KB

Download
memory/4120-10-0x00000000007C3000-0x0000000000A12000-memory.dmp

Filesize
2.3MB

Download
memory/4120-7-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/4120-6-0x00000000012A0000-0x00000000012A1000-memory.dmp

Filesize
4KB

Download
memory/4120-9-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-5-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

Filesize
4KB

Download
memory/4120-11-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-12-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-13-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-14-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-16-0x0000000000400000-0x0000000000CAD000-memory.dmp

Filesize
8.7MB

Download
memory/4120-17-0x00000000007C3000-0x0000000000A12000-memory.dmp

Filesize
2.3MB

Download