86e6fab2b9c9a219365a962076ddb69f947ec1f35e971703b0ed6cb4da528225

General

Target

Precise Temp.exe
Size

4.5MB
MD5

6509b704aa9ebb7452bc4a77b18a9e9e
SHA1

91bb981b702e16913af49a0e59f64da025bb3af8
SHA256

86e6fab2b9c9a219365a962076ddb69f947ec1f35e971703b0ed6cb4da528225
SHA512

38e6e578f262afe2ecdeedb1bb5103f68c9a61714eb71a494578ff104a2195fca4176e2820c786b7f2907fd6d7ed655684cbf558fed829b445efc6a8b734bfdb
SSDEEP

98304:TX+roAWebtAIaAgq9uAmb7YJrr9/xFJ4E1ZI+9dUbEhP1X:yrxZtXadOG+Pzh

Score

9^/10

discovery 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

Processes:

Precise Temp.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Precise Temp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Precise Temp.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:

Precise Temp.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Precise Temp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Precise Temp.exe

Themida packer 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2420-26-0x0000000000400000-0x0000000000E3E000-memory.dmp	themida
behavioral1/memory/2420-27-0x0000000000400000-0x0000000000E3E000-memory.dmp	themida
behavioral1/memory/2420-34-0x0000000000400000-0x0000000000E3E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Precise Temp.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Precise Temp.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

Precise Temp.exe

pid process

2420 Precise Temp.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2244 2420 WerFault.exe Precise Temp.exe
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
discovery

System Language Discovery
T1614.001

Processes:

Precise Temp.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Precise Temp.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

Precise Temp.exe

pid process

2420 Precise Temp.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Precise Temp.exe

pid	process
2420	Precise Temp.exe

pid	pid_target	process	target process
2244	2420	WerFault.exe	Precise Temp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Precise Temp.exe

pid	process
2420	Precise Temp.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Precise Temp.exe

description	pid	process	target process
PID 2420 wrote to memory of 2244	2420	Precise Temp.exe	WerFault.exe
PID 2420 wrote to memory of 2244	2420	Precise Temp.exe	WerFault.exe
PID 2420 wrote to memory of 2244	2420	Precise Temp.exe	WerFault.exe
PID 2420 wrote to memory of 2244	2420	Precise Temp.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\Precise Temp.exe
"C:\Users\Admin\AppData\Local\Temp\Precise Temp.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2420 -s 628
  2⤵
  - Program crash
  PID:2244

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2420-11-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-10-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-9-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-8-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-7-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-6-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-5-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-4-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-3-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-12-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-2-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-19-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-18-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-22-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-21-0x0000000000400000-0x0000000000E3E000-memory.dmp

Filesize
10.2MB

Download
memory/2420-20-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-17-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-16-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-15-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-14-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-13-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-1-0x0000000076B5E000-0x0000000076B5F000-memory.dmp

Filesize
4KB

Download
memory/2420-0-0x0000000000400000-0x0000000000E3E000-memory.dmp

Filesize
10.2MB

Download
memory/2420-25-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-24-0x0000000076B5E000-0x0000000076B5F000-memory.dmp

Filesize
4KB

Download
memory/2420-26-0x0000000000400000-0x0000000000E3E000-memory.dmp

Filesize
10.2MB

Download
memory/2420-27-0x0000000000400000-0x0000000000E3E000-memory.dmp

Filesize
10.2MB

Download
memory/2420-28-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-29-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-31-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-30-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-32-0x0000000076B50000-0x0000000076B97000-memory.dmp

Filesize
284KB

Download
memory/2420-34-0x0000000000400000-0x0000000000E3E000-memory.dmp

Filesize
10.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads