4838d71abaf436eed67d47133dbe5142c5645e165f1448dc6a25d613be573055

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
17/02/2024, 11:24

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General

Target

Perm.exe
Size

5.2MB
MD5

e3090d937f599cc0cc13234d753ae662
SHA1

8f43170c171464ee3af6ba92dbd93afe2d07c530
SHA256

4838d71abaf436eed67d47133dbe5142c5645e165f1448dc6a25d613be573055
SHA512

6b37e554c341b03b475b57e0c38a39e8b634816dccab69ec335cb8ce97e3b5b73b72df650486eefde2a2c1fb5d7c4465883e3a114c65e8ed307831985a40f971
SSDEEP

98304:pR9glbVJJ9R96PVq8+qJz/8jUYJdpgOx1RoX3EbQarsbpH3DG1nno9:r9yJ9r6NfJJr8jBLJfR5Rs5yno

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

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2888-0-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-2-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-3-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-4-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-5-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-6-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-7-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-8-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-9-0x000000013F490000-0x0000000140207000-memory.dmp	themida
behavioral1/memory/2888-12-0x000000013F490000-0x0000000140207000-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	Perm.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2888	Perm.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 3016	2888	Perm.exe	29
PID 2888 wrote to memory of 3016	2888	Perm.exe	29
PID 2888 wrote to memory of 3016	2888	Perm.exe	29
PID 3016 wrote to memory of 3024	3016	cmd.exe	30
PID 3016 wrote to memory of 3024	3016	cmd.exe	30
PID 3016 wrote to memory of 3024	3016	cmd.exe	30
PID 3016 wrote to memory of 2160	3016	cmd.exe	32
PID 3016 wrote to memory of 2160	3016	cmd.exe	32
PID 3016 wrote to memory of 2160	3016	cmd.exe	32
PID 3016 wrote to memory of 2144	3016	cmd.exe	31
PID 3016 wrote to memory of 2144	3016	cmd.exe	31
PID 3016 wrote to memory of 2144	3016	cmd.exe	31
PID 2888 wrote to memory of 3000	2888	Perm.exe	33
PID 2888 wrote to memory of 3000	2888	Perm.exe	33
PID 2888 wrote to memory of 3000	2888	Perm.exe	33
PID 2888 wrote to memory of 2764	2888	Perm.exe	34
PID 2888 wrote to memory of 2764	2888	Perm.exe	34
PID 2888 wrote to memory of 2764	2888	Perm.exe	34
PID 2888 wrote to memory of 2500	2888	Perm.exe	35
PID 2888 wrote to memory of 2500	2888	Perm.exe	35
PID 2888 wrote to memory of 2500	2888	Perm.exe	35
PID 2888 wrote to memory of 2576	2888	Perm.exe	36
PID 2888 wrote to memory of 2576	2888	Perm.exe	36
PID 2888 wrote to memory of 2576	2888	Perm.exe	36
PID 2888 wrote to memory of 2788	2888	Perm.exe	37
PID 2888 wrote to memory of 2788	2888	Perm.exe	37
PID 2888 wrote to memory of 2788	2888	Perm.exe	37
PID 2888 wrote to memory of 2748	2888	Perm.exe	38
PID 2888 wrote to memory of 2748	2888	Perm.exe	38
PID 2888 wrote to memory of 2748	2888	Perm.exe	38

C:\Users\Admin\AppData\Local\Temp\Perm.exe
"C:\Users\Admin\AppData\Local\Temp\Perm.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:2888
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Perm.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3016
- - C:\Windows\system32\certutil.exe
    certutil -hashfile "C:\Users\Admin\AppData\Local\Temp\Perm.exe" MD5
    3⤵
    PID:3024
- - C:\Windows\system32\find.exe
    find /i /v "certutil"
    3⤵
    PID:2144
- - C:\Windows\system32\find.exe
    find /i /v "md5"
    3⤵
    PID:2160
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:3000
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2764
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2500
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2576
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2788
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c cls
  2⤵
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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/2888-0-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-1-0x0000000077920000-0x0000000077AC9000-memory.dmp

Filesize
1.7MB

Download
memory/2888-2-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-3-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-4-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-5-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-6-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-7-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-8-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-9-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-11-0x0000000077920000-0x0000000077AC9000-memory.dmp

Filesize
1.7MB

Download
memory/2888-12-0x000000013F490000-0x0000000140207000-memory.dmp

Filesize
13.5MB

Download
memory/2888-13-0x0000000077920000-0x0000000077AC9000-memory.dmp

Filesize
1.7MB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads