941882cbfe48b088fff514c571f0808206d341ac9bd667b29047eb9596540193

Resubmissions

19/09/2022, 20:56

220919-zq94aachaj 9

19/09/2022, 20:53

220919-zpr63scgcq 9

19/09/2022, 20:46

220919-zkhrvahaa7 9

Analysis

max time kernel
36s
max time network
41s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
19/09/2022, 20:56

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General

Target

Vult.exe
Size

3.7MB
MD5

c6079d727ab3a2fa6401f124c3eae974
SHA1

8bb4214f74b91f02e99c0ee84b6efaeee25ba8ab
SHA256

941882cbfe48b088fff514c571f0808206d341ac9bd667b29047eb9596540193
SHA512

4e571d3168189177221213c6877d04e9c39505ecbb967afa18377b29bbe8ec2c05ad7efe57d1b9d5967c4c448feff14a67b967c6cf85f5c9161d25c55c95ae0e
SSDEEP

98304:qUAtPY8eAwqmISy/CsGWPF+e8AnmLpr97eK3:NAt0AwqmI1/dPfnmT7d

Score

9^/10

evasion themida 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__	Vult.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	Vult.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Vult.exe

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1448-54-0x000000013F530000-0x000000013FF1F000-memory.dmp	themida
behavioral1/memory/1448-55-0x000000013F530000-0x000000013FF1F000-memory.dmp	themida
behavioral1/memory/1448-56-0x000000013F530000-0x000000013FF1F000-memory.dmp	themida
behavioral1/memory/1448-57-0x000000013F530000-0x000000013FF1F000-memory.dmp	themida
behavioral1/memory/1448-66-0x000000013F530000-0x000000013FF1F000-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	Vult.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1448	Vult.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 820	1448	Vult.exe	28
PID 1448 wrote to memory of 820	1448	Vult.exe	28
PID 1448 wrote to memory of 820	1448	Vult.exe	28
PID 820 wrote to memory of 960	820	cmd.exe	29
PID 820 wrote to memory of 960	820	cmd.exe	29
PID 820 wrote to memory of 960	820	cmd.exe	29
PID 820 wrote to memory of 1532	820	cmd.exe	30
PID 820 wrote to memory of 1532	820	cmd.exe	30
PID 820 wrote to memory of 1532	820	cmd.exe	30
PID 820 wrote to memory of 1412	820	cmd.exe	31
PID 820 wrote to memory of 1412	820	cmd.exe	31
PID 820 wrote to memory of 1412	820	cmd.exe	31
PID 1448 wrote to memory of 528	1448	Vult.exe	32
PID 1448 wrote to memory of 528	1448	Vult.exe	32
PID 1448 wrote to memory of 528	1448	Vult.exe	32
PID 1448 wrote to memory of 524	1448	Vult.exe	33
PID 1448 wrote to memory of 524	1448	Vult.exe	33
PID 1448 wrote to memory of 524	1448	Vult.exe	33

C:\Users\Admin\AppData\Local\Temp\Vult.exe
"C:\Users\Admin\AppData\Local\Temp\Vult.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
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Vult.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:820
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Vult.exe" MD5
    3⤵
    PID:960
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:1532
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:1412
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c C:/You Like man :laugh: >nul 2>&1
  2⤵
  PID:528
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:524

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

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Downloads

memory/960-63-0x00000000FFD91000-0x00000000FFD93000-memory.dmp

Filesize
8KB

Download
memory/1448-57-0x000000013F530000-0x000000013FF1F000-memory.dmp

Filesize
9.9MB

Download
memory/1448-59-0x0000000077190000-0x0000000077339000-memory.dmp

Filesize
1.7MB

Download
memory/1448-54-0x000000013F530000-0x000000013FF1F000-memory.dmp

Filesize
9.9MB

Download
memory/1448-56-0x000000013F530000-0x000000013FF1F000-memory.dmp

Filesize
9.9MB

Download
memory/1448-55-0x000000013F530000-0x000000013FF1F000-memory.dmp

Filesize
9.9MB

Download
memory/1448-66-0x000000013F530000-0x000000013FF1F000-memory.dmp

Filesize
9.9MB

Download
memory/1448-67-0x0000000077190000-0x0000000077339000-memory.dmp

Filesize
1.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads