b45a8a96ffb1bd92e2c7cae9c8acd2f18d1b3c4f62eec7910ac95cf0510f3722

General

Target

2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
Size

1.8MB
MD5

e4e81d7711386e7e3a42851b29f24434
SHA1

8143610c47f6af9007a4c44ef24878f4adb8a107
SHA256

2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af
SHA512

aba953eb6a5fc3d81a8b1929689b5f8b8ef479e153b03c98e9cfff21066093439af1844c19fb8ec58170b3b2f407eb2f46630e40afb43db3fa9ada550cd14d81
SSDEEP

49152:AiSzCD+K95aLs7zeqLTVtXtHFIDP8EehiM8qZA:AiSzCD+K95aUeqFtXtHwEEehig

Score

9^/10

evasion trojan

Malware Config

Signatures

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

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	oobeldr.exe

Executes dropped EXE 1 IoCs

pid	Process
1668	oobeldr.exe

Checks BIOS information in registry 2 TTPs 4 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	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	oobeldr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	oobeldr.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	oobeldr.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
1668	oobeldr.exe
1668	oobeldr.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1680	schtasks.exe
696	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
1668	oobeldr.exe
1668	oobeldr.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 1680	1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe	27
PID 1696 wrote to memory of 1680	1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe	27
PID 1696 wrote to memory of 1680	1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe	27
PID 1696 wrote to memory of 1680	1696	2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe	27
PID 560 wrote to memory of 1668	560	taskeng.exe	30
PID 560 wrote to memory of 1668	560	taskeng.exe	30
PID 560 wrote to memory of 1668	560	taskeng.exe	30
PID 560 wrote to memory of 1668	560	taskeng.exe	30
PID 1668 wrote to memory of 696	1668	oobeldr.exe	31
PID 1668 wrote to memory of 696	1668	oobeldr.exe	31
PID 1668 wrote to memory of 696	1668	oobeldr.exe	31
PID 1668 wrote to memory of 696	1668	oobeldr.exe	31

C:\Users\Admin\AppData\Local\Temp\2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.exe
"C:\Users\Admin\AppData\Local\Temp\2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af.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
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Windows\SysWOW64\schtasks.exe
  /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
  2⤵
  - Creates scheduled task(s)
  PID:1680

C:\Windows\system32\taskeng.exe
taskeng.exe {8141CB5E-4609-4A22-85BD-3651B3C4EFD9} S-1-5-21-4063495947-34355257-727531523-1000:RYNKSFQE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:560
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Executes dropped EXE
  - Checks BIOS information in registry
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\schtasks.exe
    /C /create /F /sc minute /mo 1 /tn "Telemetry Logging" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe"
    3⤵
    - Creates scheduled task(s)
    PID:696

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
1.8MB

MD5
e4e81d7711386e7e3a42851b29f24434

SHA1
8143610c47f6af9007a4c44ef24878f4adb8a107

SHA256
2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af

SHA512
aba953eb6a5fc3d81a8b1929689b5f8b8ef479e153b03c98e9cfff21066093439af1844c19fb8ec58170b3b2f407eb2f46630e40afb43db3fa9ada550cd14d81

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
1.8MB

MD5
e4e81d7711386e7e3a42851b29f24434

SHA1
8143610c47f6af9007a4c44ef24878f4adb8a107

SHA256
2f3433364eb52eeaf9597ba819769ca9dd4c597ffad8157650269a507cf952af

SHA512
aba953eb6a5fc3d81a8b1929689b5f8b8ef479e153b03c98e9cfff21066093439af1844c19fb8ec58170b3b2f407eb2f46630e40afb43db3fa9ada550cd14d81

Download Submit
memory/1668-67-0x0000000000D10000-0x000000000102F000-memory.dmp

Filesize
3.1MB

Download
memory/1668-76-0x0000000077C50000-0x0000000077DD0000-memory.dmp

Filesize
1.5MB

Download
memory/1668-75-0x0000000000D10000-0x000000000102F000-memory.dmp

Filesize
3.1MB

Download
memory/1668-74-0x0000000077C50000-0x0000000077DD0000-memory.dmp

Filesize
1.5MB

Download
memory/1668-73-0x00000000000F0000-0x0000000000134000-memory.dmp

Filesize
272KB

Download
memory/1668-72-0x0000000000D10000-0x000000000102F000-memory.dmp

Filesize
3.1MB

Download
memory/1668-70-0x0000000000D11000-0x0000000000D13000-memory.dmp

Filesize
8KB

Download
memory/1696-61-0x0000000077C50000-0x0000000077DD0000-memory.dmp

Filesize
1.5MB

Download
memory/1696-55-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/1696-56-0x0000000000F61000-0x0000000000F63000-memory.dmp

Filesize
8KB

Download
memory/1696-54-0x0000000000F60000-0x000000000127F000-memory.dmp

Filesize
3.1MB

Download
memory/1696-63-0x0000000077C50000-0x0000000077DD0000-memory.dmp

Filesize
1.5MB

Download
memory/1696-62-0x0000000000F60000-0x000000000127F000-memory.dmp

Filesize
3.1MB

Download
memory/1696-57-0x0000000000F61000-0x0000000000F63000-memory.dmp

Filesize
8KB

Download
memory/1696-60-0x00000000002B0000-0x00000000002F4000-memory.dmp

Filesize
272KB

Download
memory/1696-59-0x0000000000F60000-0x000000000127F000-memory.dmp

Filesize
3.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads