716713b54f0545eace341a962440705dc28a4fbaab02ee15bbf31a44d8c688f5

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
09-08-2024 06:09

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General

Target

Loader.exe
Size

12.9MB
MD5

d92cf3066f5aba8a9d66d10af47e2d95
SHA1

8e7d9ea4003c86cbea43ccf976d5a28da1706fe4
SHA256

716713b54f0545eace341a962440705dc28a4fbaab02ee15bbf31a44d8c688f5
SHA512

0621650cab23dfffbfe6877f42f04317bd3508bf3426900a0f479cf84d6d399cff371ebf90a567c1fc740ed7ac8dd0fff326067f404ecc70826faf86b5b6252d
SSDEEP

393216:8kR/hpScfBpGKfqkyDUTf4XOXBKEywJoNCDnKiY2Hhay/FxaUwHI:8kU0C+ykfh83wJoNmKbGb/2vI

Score

9^/10

evasion execution persistence trojan

Malware Config

Signatures

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__	Loader.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\drivers\winhb.sys	Loader.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	Loader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Loader.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	Loader.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2444}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2879}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2859}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2869}	Loader.exe
File opened for modification	C:\Windows\System32\IME\IMETC\{69CD1F2D-DF68-4E23-9108-1B70783F2879}	Loader.exe
File opened for modification	C:\Windows\System32\config\RegBack\{69CD1F2D-DF68-4E23-9108-1B70783F2899}	Loader.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2604	Loader.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2892}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2859}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-UPDATE}	Loader.exe
File opened for modification	C:\Windows\schemas\Provisioning\{69CD1F2D-DF68-4E23-9108-1B70783F2893}	Loader.exe

Launches sc.exe 4 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
2644	sc.exe
1716	sc.exe
2676	sc.exe
2528	sc.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe
2604	Loader.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2840	2604	Loader.exe	31
PID 2604 wrote to memory of 2840	2604	Loader.exe	31
PID 2604 wrote to memory of 2840	2604	Loader.exe	31
PID 2840 wrote to memory of 2644	2840	cmd.exe	33
PID 2840 wrote to memory of 2644	2840	cmd.exe	33
PID 2840 wrote to memory of 2644	2840	cmd.exe	33
PID 2604 wrote to memory of 2516	2604	Loader.exe	34
PID 2604 wrote to memory of 2516	2604	Loader.exe	34
PID 2604 wrote to memory of 2516	2604	Loader.exe	34
PID 2604 wrote to memory of 2208	2604	Loader.exe	35
PID 2604 wrote to memory of 2208	2604	Loader.exe	35
PID 2604 wrote to memory of 2208	2604	Loader.exe	35
PID 2604 wrote to memory of 2628	2604	Loader.exe	36
PID 2604 wrote to memory of 2628	2604	Loader.exe	36
PID 2604 wrote to memory of 2628	2604	Loader.exe	36
PID 2628 wrote to memory of 2900	2628	cmd.exe	39
PID 2628 wrote to memory of 2900	2628	cmd.exe	39
PID 2628 wrote to memory of 2900	2628	cmd.exe	39
PID 2628 wrote to memory of 2532	2628	cmd.exe	40
PID 2628 wrote to memory of 2532	2628	cmd.exe	40
PID 2628 wrote to memory of 2532	2628	cmd.exe	40
PID 2628 wrote to memory of 1004	2628	cmd.exe	41
PID 2628 wrote to memory of 1004	2628	cmd.exe	41
PID 2628 wrote to memory of 1004	2628	cmd.exe	41
PID 2208 wrote to memory of 1716	2208	cmd.exe	42
PID 2208 wrote to memory of 1716	2208	cmd.exe	42
PID 2208 wrote to memory of 1716	2208	cmd.exe	42
PID 2516 wrote to memory of 2676	2516	cmd.exe	43
PID 2516 wrote to memory of 2676	2516	cmd.exe	43
PID 2516 wrote to memory of 2676	2516	cmd.exe	43
PID 2604 wrote to memory of 2684	2604	Loader.exe	44
PID 2604 wrote to memory of 2684	2604	Loader.exe	44
PID 2604 wrote to memory of 2684	2604	Loader.exe	44
PID 2684 wrote to memory of 2528	2684	cmd.exe	46
PID 2684 wrote to memory of 2528	2684	cmd.exe	46
PID 2684 wrote to memory of 2528	2684	cmd.exe	46
PID 2604 wrote to memory of 904	2604	Loader.exe	47
PID 2604 wrote to memory of 904	2604	Loader.exe	47
PID 2604 wrote to memory of 904	2604	Loader.exe	47
PID 2604 wrote to memory of 2608	2604	Loader.exe	48
PID 2604 wrote to memory of 2608	2604	Loader.exe	48
PID 2604 wrote to memory of 2608	2604	Loader.exe	48

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Drops file in Drivers directory
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2840
- - C:\Windows\system32\sc.exe
    sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
    3⤵
    - Launches sc.exe
    PID:2644
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\system32\sc.exe
    sc create windowsproc type=kernel binpath=C:\Windows\System32\drivers\winhb.sys
    3⤵
    - Launches sc.exe
    PID:2676
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C sc start windowsproc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\system32\sc.exe
    sc start windowsproc
    3⤵
    - Launches sc.exe
    PID:1716
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Loader.exe" MD5
    3⤵
    PID:2900
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:2532
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:1004
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /C sc start windowsproc
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\system32\sc.exe
    sc start windowsproc
    3⤵
    - Launches sc.exe
    PID:2528
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:904
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2604-1-0x0000000076FB0000-0x0000000076FB2000-memory.dmp

Filesize
8KB

Download
memory/2604-0-0x0000000140000000-0x0000000141D53000-memory.dmp

Filesize
29.3MB

Download
memory/2604-3-0x0000000140000000-0x0000000141D53000-memory.dmp

Filesize
29.3MB

Download
memory/2604-2-0x0000000140000000-0x0000000141D53000-memory.dmp

Filesize
29.3MB

Download
memory/2604-4-0x0000000140000000-0x0000000141D53000-memory.dmp

Filesize
29.3MB

Download
memory/2604-9-0x0000000140000000-0x0000000141D53000-memory.dmp

Filesize
29.3MB

Download