privateloader | fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6

General

Target

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
Size

3.8MB
MD5

193692e1cf957eef7e6cf2f6bc74be86
SHA1

9d1f849b57c96ca71f0f90c73de97fa912b691d7
SHA256

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6
SHA512

d0bcad2b98e5efc9c767f9a6ad87a6d62638131753bff22b21b883d90c23be17b65594b6d8c4510b255f28806b2a1dc2a01fc0e2138c3146d6e64abcd4a37697
SSDEEP

98304:agjjIlB/cHzyG0hlcX8fjr3oS6QLErN4QkMvqs:agwUTyGR8rqa7QkMis

Score

10^/10

privateloader evasion loader themida trojan

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

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

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.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

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2668-0-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-2-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-9-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-12-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-10-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-11-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-20-0x000000013F050000-0x000000013FB32000-memory.dmp	themida
behavioral1/memory/2668-27-0x000000013F050000-0x000000013FB32000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

Drops file in System32 directory 4 IoCs

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

pid	Process
2668	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe

description	pid	Process	procid_target
PID 2668 wrote to memory of 2576	2668	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe	31
PID 2668 wrote to memory of 2576	2668	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe	31
PID 2668 wrote to memory of 2576	2668	fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe	31

C:\Users\Admin\AppData\Local\Temp\fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe
"C:\Users\Admin\AppData\Local\Temp\fcc22a367ed0a8d8de94f5159ab12c32606f97326b832eb47327b7707ba457a6.exe"
1⤵
- Modifies firewall policy service
- 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
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2668 -s 396
  2⤵
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\System32\GroupPolicy\gpt.ini

Filesize
127B

MD5
8ef9853d1881c5fe4d681bfb31282a01

SHA1
a05609065520e4b4e553784c566430ad9736f19f

SHA256
9228f13d82c3dc96b957769f6081e5bac53cffca4ffde0ba1e102d9968f184a2

SHA512
5ddee931a08cfea5bb9d1c36355d47155a24d617c2a11d08364ffc54e593064011dee4fea8ac5b67029cab515d3071f0ba0422bb76af492a3115272ba8feb005

Download Submit
memory/2668-12-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-10-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-7-0x0000000077110000-0x0000000077112000-memory.dmp

Filesize
8KB

Download
memory/2668-6-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2668-9-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-0-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-2-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-8-0x00000000770C0000-0x0000000077269000-memory.dmp

Filesize
1.7MB

Download
memory/2668-11-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-20-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download
memory/2668-21-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/2668-23-0x00000000770C0000-0x0000000077269000-memory.dmp

Filesize
1.7MB

Download
memory/2668-26-0x00000000770C0000-0x0000000077269000-memory.dmp

Filesize
1.7MB

Download
memory/2668-27-0x000000013F050000-0x000000013FB32000-memory.dmp

Filesize
10.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads