7b9e81cf36ee3fb1224156663a138fc6a279a5ae61e53f59a413b3e825b9c1df

Analysis

max time kernel
15s
max time network
20s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 20:26

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General

Target

AtXtpwIJyQWWufbN.exe
Size

14.2MB
MD5

00a57273989a40b1757b890c80c8a92a
SHA1

59a68061603d9e14e8f7b850329ea675ee417062
SHA256

7b9e81cf36ee3fb1224156663a138fc6a279a5ae61e53f59a413b3e825b9c1df
SHA512

d9a962e6ec98f76ad159d64f1e8351729565aa7445f4cc181bd13607ba57d2019dec5ff2f3d3d6b5f46299a14b714705eeeec5c6f1515e6ef3cc0d2946c6690b
SSDEEP

393216:WYJ5Qt9iFsm7tzozxGMJbGVGcZcT+FaJFAorO:WYwKFBCzgM0LAkSO

Score

9^/10

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

Deletes itself 1 IoCs

pid	Process
2776	ldrupd.bin

Executes dropped EXE 1 IoCs

pid	Process
2776	ldrupd.bin

Loads dropped DLL 5 IoCs

pid	Process
1968	AtXtpwIJyQWWufbN.exe
1968	AtXtpwIJyQWWufbN.exe
2892	WerFault.exe
2892	WerFault.exe
2892	WerFault.exe

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	AtXtpwIJyQWWufbN.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2776	1968	AtXtpwIJyQWWufbN.exe	28
PID 1968 wrote to memory of 2776	1968	AtXtpwIJyQWWufbN.exe	28
PID 1968 wrote to memory of 2776	1968	AtXtpwIJyQWWufbN.exe	28
PID 2776 wrote to memory of 2892	2776	ldrupd.bin	29
PID 2776 wrote to memory of 2892	2776	ldrupd.bin	29
PID 2776 wrote to memory of 2892	2776	ldrupd.bin	29

C:\Users\Admin\AppData\Local\Temp\AtXtpwIJyQWWufbN.exe
"C:\Users\Admin\AppData\Local\Temp\AtXtpwIJyQWWufbN.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\ldrupd.bin
  "C:\Users\Admin\AppData\Local\ldrupd.bin"
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2776 -s 100
    3⤵
    - Loads dropped DLL
    PID:2892

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

\Users\Admin\AppData\Local\ldrupd.bin

Filesize
3KB

MD5
a24978a6b77e2cd99823e24c6eb4d055

SHA1
05aab593ba8e0c21f2859d04d4810fdd1ce453c3

SHA256
80ac94c086eb6e52bc3bbebd86e0795f6cb7476153af0c767b9ae4b7e9931140

SHA512
24356ce42d0fd7839166416604fd7bd101cab8754de095676c921bfb664bc110e8a87cb863afefb5fd98450496c1b3e303851943f13a3e19f206350239c2a8db

Download Submit
memory/1968-0-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download
memory/1968-1-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download
memory/1968-2-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download
memory/1968-3-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download
memory/1968-4-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download
memory/1968-13-0x0000000140000000-0x0000000142333000-memory.dmp

Filesize
35.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads