5b7f12b80400ba50da8abe6741aaf3003e03a224b7371ff7ffcb513e29870a87

General

Target
2a7e0ab1a0d21f4c.exe
Size 3.0MB
Sample260420-nnbbdsc14v
SHA256 5b7f12b80400ba50da8abe6741aaf3003e03a224b7371ff7ffcb513e29870a87
MD5 ae9850d2ef70db39b8a597c0ff763eb8
SHA1 99244b727630ebe9152806a1391a497e35469d36
SHA512 77a16a66734fa8b6c265b9ba6af4c4e4748a06cc6e6d8c56c73f73427daf42e53b77fec581aeecca7c92bb8017d8eac7a5480e1dcd94ec23e5f0597082889a43
SSDEEP 49152:HoLdzQEp8KvBBcTgNIjZnIKhsU65k3Qb8I3LOq3KHLhbBWIHSSvqK1fWifciy:FEXEgNIjlIKR6eA8I3tKhbUIyqqcuOy
TLSH
T168E5233933B510A5F9ABB634DE45A3A3D2F6B1026390F3AF06B066791F43965F41E384
MD5 SHA1 SHA512 SSDEEP TLSH

Score

9^/10

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

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2a7e0ab1a0d21f4c.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2a7e0ab1a0d21f4c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2a7e0ab1a0d21f4c.exe

Deletes itself 1 IoCs

pid	Process
3796	2a7e0ab1a0d21f4c.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

resource	yara_rule
behavioral2/memory/3796-0-0x0000000140000000-0x000000014077C000-memory.dmp	themida
behavioral2/memory/3796-20-0x0000000140000000-0x000000014077C000-memory.dmp	themida
behavioral2/memory/3796-17-0x0000000140000000-0x000000014077C000-memory.dmp	themida
behavioral2/memory/3796-21-0x0000000140000000-0x000000014077C000-memory.dmp	themida
behavioral2/memory/3796-57-0x0000000140000000-0x000000014077C000-memory.dmp	themida

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2a7e0ab1a0d21f4c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3796	2a7e0ab1a0d21f4c.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3796	2a7e0ab1a0d21f4c.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 1636	3796	2a7e0ab1a0d21f4c.exe	79
PID 3796 wrote to memory of 1804	3796	2a7e0ab1a0d21f4c.exe	80

C:\Users\Admin\AppData\Local\Temp\2a7e0ab1a0d21f4c.exe
"C:\Users\Admin\AppData\Local\Temp\2a7e0ab1a0d21f4c.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Deletes itself
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3796
- C:\Program Files\Google\Chrome\Application\chrome.exe
  C:\Program Files\Google\Chrome\Application\chrome.exe
  2⤵
  PID:1636
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  2⤵
  PID:1804

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:2564

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:2532