77bb9c54cbabfcabe18c0e9f0d3ccd2a5093fdece5a30b6c6ad364a2ef654e20

Analysis

max time kernel
4294179s
max time network
122s
platform
windows7_x64
resource
win7-20220311-en
submitted
31/03/2022, 09:26

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General

Target
307f3f5eb22f90dcd76b925904ef5573.exe
Size 287KB
Sample220331-ld6y7sdgem
SHA256 77bb9c54cbabfcabe18c0e9f0d3ccd2a5093fdece5a30b6c6ad364a2ef654e20
MD5 307f3f5eb22f90dcd76b925904ef5573
SHA1 00586bc90bb014d028fbf910c025c4bc954742ef
SHA512 b45a7a89debca5f7cefdec65d1c4fa861b70257ef9f4569908abbf1f12fd612bb2d76642a6a85aecb6b08e1b03a2523eae7b024565f7c9d2a8a6ce453da04d46
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2024	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
1092	schtasks.exe
2012	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1092	1924	307f3f5eb22f90dcd76b925904ef5573.exe	27
PID 1924 wrote to memory of 1092	1924	307f3f5eb22f90dcd76b925904ef5573.exe	27
PID 1924 wrote to memory of 1092	1924	307f3f5eb22f90dcd76b925904ef5573.exe	27
PID 1924 wrote to memory of 1092	1924	307f3f5eb22f90dcd76b925904ef5573.exe	27
PID 804 wrote to memory of 2024	804	taskeng.exe	32
PID 804 wrote to memory of 2024	804	taskeng.exe	32
PID 804 wrote to memory of 2024	804	taskeng.exe	32
PID 804 wrote to memory of 2024	804	taskeng.exe	32
PID 2024 wrote to memory of 2012	2024	oobeldr.exe	33
PID 2024 wrote to memory of 2012	2024	oobeldr.exe	33
PID 2024 wrote to memory of 2012	2024	oobeldr.exe	33
PID 2024 wrote to memory of 2012	2024	oobeldr.exe	33

C:\Users\Admin\AppData\Local\Temp\307f3f5eb22f90dcd76b925904ef5573.exe
"C:\Users\Admin\AppData\Local\Temp\307f3f5eb22f90dcd76b925904ef5573.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- 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:1092

C:\Windows\system32\taskeng.exe
taskeng.exe {A5FE5B3C-41EC-463A-BCAF-82F2F783B988} S-1-5-21-2199625441-3471261906-229485034-1000:DRLQIXCW\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:804
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2024
- - 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:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 287KB
SHA256 77bb9c54cbabfcabe18c0e9f0d3ccd2a5093fdece5a30b6c6ad364a2ef654e20
MD5 307f3f5eb22f90dcd76b925904ef5573
SHA1 00586bc90bb014d028fbf910c025c4bc954742ef
SHA512 b45a7a89debca5f7cefdec65d1c4fa861b70257ef9f4569908abbf1f12fd612bb2d76642a6a85aecb6b08e1b03a2523eae7b024565f7c9d2a8a6ce453da04d46
MD5 SHA1 SHA512

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 287KB
SHA256 77bb9c54cbabfcabe18c0e9f0d3ccd2a5093fdece5a30b6c6ad364a2ef654e20
MD5 307f3f5eb22f90dcd76b925904ef5573
SHA1 00586bc90bb014d028fbf910c025c4bc954742ef
SHA512 b45a7a89debca5f7cefdec65d1c4fa861b70257ef9f4569908abbf1f12fd612bb2d76642a6a85aecb6b08e1b03a2523eae7b024565f7c9d2a8a6ce453da04d46
MD5 SHA1 SHA512

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memory/1924-55-0x0000000074F31000-0x0000000074F33000-memory.dmp

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memory/1924-58-0x0000000000220000-0x0000000000224000-memory.dmp

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memory/1924-57-0x000000000064E000-0x0000000000657000-memory.dmp

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memory/1924-59-0x0000000000400000-0x000000000048C000-memory.dmp

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memory/1924-54-0x000000000064E000-0x0000000000657000-memory.dmp

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memory/2024-63-0x00000000005EF000-0x00000000005F8000-memory.dmp

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memory/2024-66-0x00000000005EF000-0x00000000005F8000-memory.dmp

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memory/2024-67-0x0000000000400000-0x000000000048C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads