672bb2fa74f841402c1a32e7f707993825922b609dbbe8cf479f4eb6b09d49d2

Analysis

max time kernel
119s
max time network
22s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-07-2024 06:35

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General

Target

a1cd11798083cb237667b0097a02f1d0N.exe
Size

498KB
MD5

a1cd11798083cb237667b0097a02f1d0
SHA1

58d90968a048a996421824d5a4d9e25e8b029e65
SHA256

672bb2fa74f841402c1a32e7f707993825922b609dbbe8cf479f4eb6b09d49d2
SHA512

e03d457ecbee9ab45d8284815add6f4caef02521e7aa53978dd0cd2a5c173c8e700d80fd0ba8b45a3696fc878dec59a7237c846dbe9b8d180ad4e7b2386cdcea
SSDEEP

12288:YTFERriEKHWHqlha0vW2cSaFOG7WHuJCXD:YToiEKHWHUaocSaVrkD

Score

9^/10

discovery evasion

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__	a1cd11798083cb237667b0097a02f1d0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2568	s7799.exe

Loads dropped DLL 4 IoCs

pid	Process
1976	a1cd11798083cb237667b0097a02f1d0N.exe
1976	a1cd11798083cb237667b0097a02f1d0N.exe
1976	a1cd11798083cb237667b0097a02f1d0N.exe
1976	a1cd11798083cb237667b0097a02f1d0N.exe

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

System Information Discovery
T1082

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1cd11798083cb237667b0097a02f1d0N.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	a1cd11798083cb237667b0097a02f1d0N.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	a1cd11798083cb237667b0097a02f1d0N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1976	a1cd11798083cb237667b0097a02f1d0N.exe
1976	a1cd11798083cb237667b0097a02f1d0N.exe
2568	s7799.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	s7799.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2568	s7799.exe
2568	s7799.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1976 wrote to memory of 2568	1976	a1cd11798083cb237667b0097a02f1d0N.exe	30
PID 1976 wrote to memory of 2568	1976	a1cd11798083cb237667b0097a02f1d0N.exe	30
PID 1976 wrote to memory of 2568	1976	a1cd11798083cb237667b0097a02f1d0N.exe	30
PID 1976 wrote to memory of 2568	1976	a1cd11798083cb237667b0097a02f1d0N.exe	30

C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.exe
"C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\n7799\s7799.exe
  "C:\Users\Admin\AppData\Local\Temp\n7799\s7799.exe" ins.exe /e 3322052 /u 4dbeaee0-8534-4a51-afb3-339e5bc06ebe /v "C:\Users\Admin\AppData\Local\Temp\a1cd11798083cb237667b0097a02f1d0N.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2568

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n7799\s7799.exe

Filesize
282KB

MD5
29c1470cbf58838dc6a3f9d624b4527f

SHA1
e8d1d1306e44b47e36b03ade24deb56e98bb82d4

SHA256
dd056f949a90c1de581ddb0b16c5d49309cfe99926cd397fc31cff7e4895141d

SHA512
9e90bcd2f0ff30b035531c1fd885034f6e6763d4e566bf0a0ee5b8238fdfc62d581c6c3f4e97cf36f374e1b8597fe0b39544bb30c9b7d8802cef98cc4880bd57

Download Submit
memory/2568-18-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp

Filesize
9.6MB

Download
memory/2568-17-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp

Filesize
9.6MB

Download
memory/2568-16-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp

Filesize
9.6MB

Download
memory/2568-15-0x0000000000430000-0x000000000043A000-memory.dmp

Filesize
40KB

Download
memory/2568-14-0x000007FEF611E000-0x000007FEF611F000-memory.dmp

Filesize
4KB

Download
memory/2568-19-0x000007FEF5E60000-0x000007FEF67FD000-memory.dmp

Filesize
9.6MB

Download