4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

Analysis

max time kernel
144s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
01/11/2022, 14:18

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General

Target

4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe
Size

324KB
MD5

b1990c29817b094f13a1a3e03df4eca3
SHA1

4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59
SHA256

4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625
SHA512

462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4020	oobeldr.exe
4120	oobeldr.exe
3144	oobeldr.exe
756	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3812 set thread context of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 4020 set thread context of 4120	4020	oobeldr.exe	70
PID 3144 set thread context of 756	3144	oobeldr.exe	74

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
2836	schtasks.exe
3100	schtasks.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 3812 wrote to memory of 4128	3812	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	66
PID 4128 wrote to memory of 2836	4128	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	67
PID 4128 wrote to memory of 2836	4128	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	67
PID 4128 wrote to memory of 2836	4128	4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe	67
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4020 wrote to memory of 4120	4020	oobeldr.exe	70
PID 4120 wrote to memory of 3100	4120	oobeldr.exe	71
PID 4120 wrote to memory of 3100	4120	oobeldr.exe	71
PID 4120 wrote to memory of 3100	4120	oobeldr.exe	71
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74
PID 3144 wrote to memory of 756	3144	oobeldr.exe	74

C:\Users\Admin\AppData\Local\Temp\4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe
"C:\Users\Admin\AppData\Local\Temp\4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3812
- C:\Users\Admin\AppData\Local\Temp\4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe
  C:\Users\Admin\AppData\Local\Temp\4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4128
- - 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:2836

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4020
- 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:4120
- - 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:3100

C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3144
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:756

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\oobeldr.exe.log

Filesize
789B

MD5
db5ef8d7c51bad129d9097bf953e4913

SHA1
8439db960aa2d431bf5ec3c37af775b45eb07e06

SHA256
1248e67f10b47b397af3c8cbe342bad4be75c68b8e10f4ec6341195cc3138bd9

SHA512
04572485790b25e1751347e43b47174051cd153dd75fd55ee5590d25a2579f344cd96cf86cf45bdb7759e3e6d0f734d0ff717148ca70f501b9869e964e036fee

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

Filesize
324KB

MD5
b1990c29817b094f13a1a3e03df4eca3

SHA1
4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59

SHA256
4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

SHA512
462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c

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

Filesize
324KB

MD5
b1990c29817b094f13a1a3e03df4eca3

SHA1
4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59

SHA256
4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

SHA512
462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c

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

Filesize
324KB

MD5
b1990c29817b094f13a1a3e03df4eca3

SHA1
4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59

SHA256
4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

SHA512
462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c

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

Filesize
324KB

MD5
b1990c29817b094f13a1a3e03df4eca3

SHA1
4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59

SHA256
4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

SHA512
462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c

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

Filesize
324KB

MD5
b1990c29817b094f13a1a3e03df4eca3

SHA1
4d1ec5d5b29d555b1736824c4d21bf8b29dc6e59

SHA256
4a0227be81990c3fb5fa454e66afb0d7dd6378f8854aa72c3c26d40ac091e625

SHA512
462ed248666e9482e5551e38590a26a07b298de538c84157dcfdae851cf20711ff93de6dac8d535e2d1015ac2fe50a52e6e6fe663729de8374063cda7daaf06c

Download Submit
memory/3812-153-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-159-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-124-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-125-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-126-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-127-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-128-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-129-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-130-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-160-0x0000000007B00000-0x0000000007B92000-memory.dmp

Filesize
584KB

Download
memory/3812-133-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-134-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-135-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-136-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-137-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-131-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-138-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-139-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-140-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-141-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-143-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-142-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-144-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-145-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-146-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-147-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-148-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-151-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-150-0x0000000000C70000-0x0000000000CC6000-memory.dmp

Filesize
344KB

Download
memory/3812-149-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-152-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-122-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-156-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-155-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-157-0x0000000005480000-0x000000000554C000-memory.dmp

Filesize
816KB

Download
memory/3812-154-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-123-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-158-0x0000000008000000-0x00000000084FE000-memory.dmp

Filesize
5.0MB

Download
memory/3812-132-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-161-0x0000000005550000-0x0000000005556000-memory.dmp

Filesize
24KB

Download
memory/3812-162-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-163-0x0000000007DA0000-0x0000000007E16000-memory.dmp

Filesize
472KB

Download
memory/3812-164-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-165-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-166-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-167-0x00000000056F0000-0x000000000570E000-memory.dmp

Filesize
120KB

Download
memory/3812-169-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-173-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-172-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-171-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-170-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-168-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-180-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-116-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-117-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-118-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-119-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-120-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/3812-121-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-174-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4128-183-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-184-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-185-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-179-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-176-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-178-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-177-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-182-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-186-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-187-0x0000000077440000-0x00000000775CE000-memory.dmp

Filesize
1.6MB

Download
memory/4128-214-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads