6c7ec50485943ef850a67df20d7903522566f00e16506c1c03a772b9dc6bebd2

Analysis

max time kernel
93s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2024 17:36

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General

Target

simityvp.exe
Size

2.6MB
MD5

9f466fa2a0a30ac516f46d4880b22619
SHA1

04d75114ba14a3ef8425329772ddfa969e52570b
SHA256

a26355756d9f2c768ee490a0c8e639b26b3a48a3aa4a1d3ff0aa0bad97b385f4
SHA512

8092180a53226776c974a87964198cab23b17d34e6f68cc6ff9aa2ee2e75031766ab110e1d9c35c63c32121b7cec9ce17bee1e979f19bbecea980bd09955d58b
SSDEEP

49152:u/VlbXp32n+MB8kHd8rKlyOyz7GS+hmpgo9pVzRJHOQe5c6wcBP7KyjRmCHrykb:u/TbZ3mG8dBlW7aUbjNJHredJBzKyjEe

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

19 5000 WScript.exe
22 5000 WScript.exe

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

flow	pid	process
19	5000	WScript.exe
22	5000	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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

simityvp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	simityvp.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral20/memory/464-0-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-2-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-3-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-6-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-4-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-5-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-11-0x00000000008F0000-0x0000000000FC6000-memory.dmp	themida
behavioral20/memory/464-21-0x00000000008F0000-0x0000000000FC6000-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

19 iplogger.org
18 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

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

Processes:

simityvp.exe

pid process

464 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
19	iplogger.org
18	iplogger.org

flow	ioc
3	ip-api.com

pid	process
464	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:

WScript.exesimityvp.exe

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

Modifies registry class 1 IoCs

Processes:

simityvp.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings simityvp.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

simityvp.exe

pid process

464 simityvp.exe
464 simityvp.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000_Classes\Local Settings	simityvp.exe

pid	process
464	simityvp.exe
464	simityvp.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

simityvp.exe

description	pid	process	target process
PID 464 wrote to memory of 5000	464	simityvp.exe	WScript.exe
PID 464 wrote to memory of 5000	464	simityvp.exe	WScript.exe
PID 464 wrote to memory of 5000	464	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 computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\jgpxlow.vbs"
  2⤵
  - Blocklisted process makes network request
  - System Location Discovery: System Language Discovery
  PID:5000

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\E168.tmp

Filesize
291B

MD5
c085beeb6f771b90fed94c1d940f97f6

SHA1
44a994d9175d6abaa9a3b5718e242fa659aed66a

SHA256
ff5681f440a7a4b019a4a59f43ad414393321d1eb6dc3874cea0a84e73a83c51

SHA512
9d000581b287cd3d5464c33c260008090369a4f5f380b7cfa72eb0fc3221ce0e07df0387f6d3d6b38253c215250ac873dec0f52c501e3d6312f0a5437723a76a

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

Filesize
148B

MD5
45792d62fa3bccd5e8b08d07275253ba

SHA1
e6975d9477d0411cf545a05c09e2f302e33d6580

SHA256
9d105c065ddc12674ca1e6ce0b77053c1d1926d1943ae03bdefb5f4095d1f00c

SHA512
5aeb6ccd2975c5fe3edf58c54d89f0ff4b1a47df270a0c3c0d9d0e54787c670273ad3b8d9011b11c8e17a4f65ccb31e61969d0ce373ba2cd2fe28068acfad7c7

Download Submit
memory/464-0-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-1-0x0000000077114000-0x0000000077116000-memory.dmp

Filesize
8KB

Download
memory/464-2-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-3-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-6-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-4-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-5-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-11-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download
memory/464-21-0x00000000008F0000-0x0000000000FC6000-memory.dmp

Filesize
6.8MB

Download