1a4b5d8c8adf2cac325be642c101f223102145b818546d497d71390104b180c7

Analysis

max time kernel
84s
max time network
56s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 14:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

simityvp.exe
Size

2.6MB
MD5

7acd70f3dfdcd33dbe40603e939fcb79
SHA1

d7f63d7b0a37b3d78d13e8ea783e0aba6507aa20
SHA256

069539fb82534ac72239b2f35f4711cd4ac828d26ab29e159c1082f725b9999d
SHA512

4ef930ac69b82f078084212d6e57ea0522568452aca5e35de3a0b85a99a9dae6209fcd394582ea64ac8d45e9708dffefada5d267254332bfa62da780d968cefc
SSDEEP

49152:opjm0WOyUeKHY274eWPaAZOdZ8o5DnWCHZc2w94K0TAA5N:4jm0W24H/YdZ8AE2wOKODN

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:

simityvp.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ simityvp.exe
Blocklisted process makes network request 2 IoCs

Processes:

WScript.exe

flow pid process

8 2784 WScript.exe
10 2784 WScript.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	simityvp.exe

flow	pid	process
8	2784	WScript.exe
10	2784	WScript.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:

simityvp.exe

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

Themida packer 7 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral19/memory/540-0-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-2-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-3-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-4-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-5-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-10-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida
behavioral19/memory/540-20-0x00000000002F0000-0x00000000009B9000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

simityvp.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA simityvp.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

7 iplogger.org
8 iplogger.org
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

simityvp.exe

pid process

540 simityvp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

flow	ioc
7	iplogger.org
8	iplogger.org

flow	ioc
4	ip-api.com

pid	process
540	simityvp.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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:

simityvp.exeWScript.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	simityvp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

simityvp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	simityvp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	simityvp.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

simityvp.exe

pid process

540 simityvp.exe

pid	process
540	simityvp.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

simityvp.exe

description	pid	process	target process
PID 540 wrote to memory of 2784	540	simityvp.exe	WScript.exe
PID 540 wrote to memory of 2784	540	simityvp.exe	WScript.exe
PID 540 wrote to memory of 2784	540	simityvp.exe	WScript.exe
PID 540 wrote to memory of 2784	540	simityvp.exe	WScript.exe

C:\Users\Admin\AppData\Local\Temp\simityvp.exe
"C:\Users\Admin\AppData\Local\Temp\simityvp.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
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:540
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\vkhofakmt.vbs"
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  PID:2784

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\C61.tmp

Filesize
291B

MD5
c085beeb6f771b90fed94c1d940f97f6

SHA1
44a994d9175d6abaa9a3b5718e242fa659aed66a

SHA256
ff5681f440a7a4b019a4a59f43ad414393321d1eb6dc3874cea0a84e73a83c51

SHA512
9d000581b287cd3d5464c33c260008090369a4f5f380b7cfa72eb0fc3221ce0e07df0387f6d3d6b38253c215250ac873dec0f52c501e3d6312f0a5437723a76a

Download Submit
C:\Users\Admin\AppData\Local\Temp\vkhofakmt.vbs

Filesize
148B

MD5
ed2cb8d4df232195c9bd918fdcb916bf

SHA1
ab10a8a3688208fdd0ae2ec4a55af184daacdfab

SHA256
ba27849cc21c37f4d42702c7fd3a5f31a79ee665b478de49e591ca6afd3f4e76

SHA512
5b4b0cf807a68e193f9796854bbff36424864891b4432b36a9d2ee01ab0265471b416fcc841d9526e8092b658dee986804b15291d75d908094b42f6a24da545c

Download Submit
memory/540-0-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-1-0x0000000077320000-0x0000000077322000-memory.dmp

Filesize
8KB

Download
memory/540-2-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-3-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-4-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-5-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-10-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download
memory/540-20-0x00000000002F0000-0x00000000009B9000-memory.dmp

Filesize
6.8MB

Download