62cd7b447bdee3ec1670c92d9585e1fddbaa5d4ee824dee8f15940005bf95414

General

Target

tmp.exe
Size

3.2MB
MD5

4204b9d4c4df5c4b4d67922db24f342a
SHA1

9255b5e94028f3f55adda2576d60bd39452eaf08
SHA256

62cd7b447bdee3ec1670c92d9585e1fddbaa5d4ee824dee8f15940005bf95414
SHA512

0b4ed4d6397c9f34cf2c72d9c581a6e5d94eabf395da0010073b1600883dac6fcc48c1606ffee29952bd60707caf03b8a6d6cf644b2ac668306b4a418d726423
SSDEEP

49152:l/Ki16IscOcmroPBql2IzydQgfTzTGKr6d61YryTz3onQqHlfBrfgOtat:Ujpreg7zyWsFGd61QYoHBroO4t

Score

10^/10

evasion themida trojan

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

tmp.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\FirewallRules\C:\ = "1"	tmp.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

tmp.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ tmp.exe

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

tmp.exe

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

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/3608-0-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-6-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-7-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-8-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-9-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-10-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-12-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-11-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida
behavioral2/memory/3608-21-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA tmp.exe
Looks up external IP address via web service 4 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

7 api.myip.com
8 api.myip.com
11 ipinfo.io
12 ipinfo.io

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

flow	ioc
7	api.myip.com
8	api.myip.com
11	ipinfo.io
12	ipinfo.io

Drops file in System32 directory 4 IoCs

Processes:

tmp.exe

description	ioc	process
File opened for modification	C:\Windows\System32\GroupPolicy	tmp.exe
File opened for modification	C:\Windows\System32\GroupPolicy\gpt.ini	tmp.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	tmp.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	tmp.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

tmp.exe

pid process

3608 tmp.exe

pid	process
3608	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Modifies firewall policy service
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:3608

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:4804

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3608-0-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-1-0x00007FFE84B50000-0x00007FFE84C0E000-memory.dmp

Filesize
760KB

Download
memory/3608-2-0x00007FFE80000000-0x00007FFE80002000-memory.dmp

Filesize
8KB

Download
memory/3608-3-0x00007FFE83970000-0x00007FFE83C39000-memory.dmp

Filesize
2.8MB

Download
memory/3608-4-0x00007FFE83970000-0x00007FFE83C39000-memory.dmp

Filesize
2.8MB

Download
memory/3608-5-0x00007FFE80030000-0x00007FFE80031000-memory.dmp

Filesize
4KB

Download
memory/3608-6-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-7-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-8-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-9-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-10-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-12-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-11-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-20-0x00007FFE85E50000-0x00007FFE86045000-memory.dmp

Filesize
2.0MB

Download
memory/3608-21-0x00007FF6FAF60000-0x00007FF6FB9C1000-memory.dmp

Filesize
10.4MB

Download
memory/3608-22-0x00007FFE84B50000-0x00007FFE84C0E000-memory.dmp

Filesize
760KB

Download
memory/3608-24-0x00007FFE80000000-0x00007FFE80002000-memory.dmp

Filesize
8KB

Download
memory/3608-25-0x00007FFE83970000-0x00007FFE83C39000-memory.dmp

Filesize
2.8MB

Download
memory/3608-27-0x00007FFE85E50000-0x00007FFE86045000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads