privateloader | bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4

General

Target

JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
Size

693.0MB
MD5

275829e04c4c474ca941c7adcdc9768b
SHA1

e7387f82693b3cd045cd23e3c1d48d93a856a405
SHA256

bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4
SHA512

8d8dbc23ff7cb676b437397f2193c4fe656eda7f3abf37fcf9cf3b2422525a092d5185717c8910d015aeec5c8b81c9dd8333943a9c5eae927fcbc372e9b8437c
SSDEEP

98304:tyUaSXaoc7ooHxsnLESGItGjl4kA4d9fJ/2ngf6mniI1eTs/tvRmmuQ:tnvXxtnLES3tQl4VQx/2nybnrETIRcm

Score

10^/10

privateloader discovery evasion loader themida trojan

Malware Config

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__	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.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	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Themida packer 14 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2100-0-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-31-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-39-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-40-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-48-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-45-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-55-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-41-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-47-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-44-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-42-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-46-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-43-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida
behavioral1/memory/2100-56-0x0000000001210000-0x0000000002CAA000-memory.dmp	themida

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	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
File opened for modification	C:\Windows\System32\GroupPolicy	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2672	2100	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe	31
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe	31
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe	31
PID 2100 wrote to memory of 2672	2100	JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_bd81711e9f840f488007fec2a7175e13ae348c85a62b473c1c7e2921d896ecf4.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 404
  2⤵
  - Program crash
  PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2100-0-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-32-0x000000000238F000-0x00000000025C9000-memory.dmp

Filesize
2.2MB

Download
memory/2100-30-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2100-28-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2100-25-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2100-23-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2100-20-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2100-18-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2100-15-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2100-13-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2100-10-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2100-8-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2100-6-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2100-5-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2100-3-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2100-31-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-39-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-40-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-48-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-45-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-55-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-41-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-47-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-44-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-42-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-46-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-43-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download
memory/2100-56-0x0000000001210000-0x0000000002CAA000-memory.dmp

Filesize
26.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads