aa0f90996e9da3931786f8004bfa51a98c33e8b159ba07b688338196b2f936a4

Analysis

max time kernel
232s
max time network
296s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
02-03-2023 11:27

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General

Target

jli.dll
Size

2.5MB
MD5

cc1d1bf233e140add837f8e58556c583
SHA1

c0abda8fd10d06947d66f5d23223ba56478db36b
SHA256

95c8b94859d0145f1873d4a34cee1db3d84ff631bd60fbde85dd08240902ac19
SHA512

621f4dbde4f208e61e79316a45a22dbac16bfa7e348f541b34712093e885625762d3922606b4983d1f0e78c3e2d7b2b04506e404c49f0a6fe0628fbbbc9413ac
SSDEEP

49152:HHo7mQMMI3crq9nf+LMVbSuWcSEuEx4UmmTcdW54xl5YUhIRUc/cqmlZPIf:noCJMI3crqcLMVbm3Hm4dFL5YyIUc/cg

Score

9^/10

evasion

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__	rundll32.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
836	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3680	836	WerFault.exe	85

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
836	rundll32.exe
836	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 836	3380	rundll32.exe	85
PID 3380 wrote to memory of 836	3380	rundll32.exe	85
PID 3380 wrote to memory of 836	3380	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\jli.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\jli.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:836
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 836 -s 900
    3⤵
    - Program crash
    PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 836 -ip 836
1⤵
PID:4400

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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/836-133-0x0000000002BF0000-0x000000000335D000-memory.dmp

Filesize
7.4MB

Download
memory/836-134-0x0000000004530000-0x0000000004531000-memory.dmp

Filesize
4KB

Download
memory/836-135-0x0000000004510000-0x0000000004511000-memory.dmp

Filesize
4KB

Download
memory/836-137-0x00000000045C0000-0x00000000045C1000-memory.dmp

Filesize
4KB

Download
memory/836-136-0x0000000004520000-0x0000000004521000-memory.dmp

Filesize
4KB

Download
memory/836-138-0x0000000004610000-0x0000000004611000-memory.dmp

Filesize
4KB

Download
memory/836-139-0x00000000045D0000-0x00000000045D1000-memory.dmp

Filesize
4KB

Download
memory/836-140-0x0000000004670000-0x0000000004671000-memory.dmp

Filesize
4KB

Download
memory/836-141-0x0000000004570000-0x0000000004571000-memory.dmp

Filesize
4KB

Download
memory/836-142-0x00000000046D0000-0x00000000046D1000-memory.dmp

Filesize
4KB

Download
memory/836-144-0x0000000004780000-0x0000000004782000-memory.dmp

Filesize
8KB

Download
memory/836-143-0x0000000004550000-0x0000000004551000-memory.dmp

Filesize
4KB

Download
memory/836-145-0x0000000004540000-0x0000000004541000-memory.dmp

Filesize
4KB

Download