3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

Analysis

max time kernel
105s
max time network
75s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
05-11-2022 10:53

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General

Target

3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
Size

328KB
MD5

4842dc784b71fa028f1930c495bdafa0
SHA1

3088dde829624dd2719d8929df726c14dfcdcc81
SHA256

3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad
SHA512

f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4924	oobeldr.exe
4872	oobeldr.exe
4364	oobeldr.exe
400	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3540 set thread context of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 4924 set thread context of 4872	4924	oobeldr.exe	71
PID 4364 set thread context of 400	4364	oobeldr.exe	75

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
3612	schtasks.exe
1936	schtasks.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 4880	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	66
PID 3540 wrote to memory of 4880	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	66
PID 3540 wrote to memory of 4880	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	66
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 3540 wrote to memory of 4888	3540	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	67
PID 4888 wrote to memory of 3612	4888	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	68
PID 4888 wrote to memory of 3612	4888	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	68
PID 4888 wrote to memory of 3612	4888	3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe	68
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4924 wrote to memory of 4872	4924	oobeldr.exe	71
PID 4872 wrote to memory of 1936	4872	oobeldr.exe	72
PID 4872 wrote to memory of 1936	4872	oobeldr.exe	72
PID 4872 wrote to memory of 1936	4872	oobeldr.exe	72
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75
PID 4364 wrote to memory of 400	4364	oobeldr.exe	75

C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
"C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3540
- C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
  C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
  2⤵
  PID:4880
- C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
  C:\Users\Admin\AppData\Local\Temp\3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4888
- - 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:3612

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:4924
- 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:4872
- - 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:1936

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:4364
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:400

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
328KB

MD5
4842dc784b71fa028f1930c495bdafa0

SHA1
3088dde829624dd2719d8929df726c14dfcdcc81

SHA256
3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

SHA512
f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb

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

Filesize
328KB

MD5
4842dc784b71fa028f1930c495bdafa0

SHA1
3088dde829624dd2719d8929df726c14dfcdcc81

SHA256
3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

SHA512
f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb

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

Filesize
328KB

MD5
4842dc784b71fa028f1930c495bdafa0

SHA1
3088dde829624dd2719d8929df726c14dfcdcc81

SHA256
3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

SHA512
f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb

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

Filesize
328KB

MD5
4842dc784b71fa028f1930c495bdafa0

SHA1
3088dde829624dd2719d8929df726c14dfcdcc81

SHA256
3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

SHA512
f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb

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

Filesize
328KB

MD5
4842dc784b71fa028f1930c495bdafa0

SHA1
3088dde829624dd2719d8929df726c14dfcdcc81

SHA256
3b8e66e021984031e7c4660d6c833263ed90caecf300c7837ee320959b5327ad

SHA512
f98e3bfa924059a27daf74f23bbcfc72da6b85e602df95f6cdc667fe100efc80424e38d36f4de6b5b08100202ab7808de1844ff300716cfaf06d2e5a59ced2eb

Download Submit
memory/400-394-0x0000000000402354-mapping.dmp

Download
memory/1936-321-0x0000000000000000-mapping.dmp

Download
memory/3540-156-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-118-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-127-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-126-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-129-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-128-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-130-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-131-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-132-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-133-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-135-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-136-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-137-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-134-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-138-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-139-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-140-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-141-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-142-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-143-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-145-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-144-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-146-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-147-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-148-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-149-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-150-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-151-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-152-0x0000000000810000-0x0000000000866000-memory.dmp

Filesize
344KB

Download
memory/3540-153-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-154-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-155-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-124-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-157-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-158-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-159-0x0000000007530000-0x00000000075FC000-memory.dmp

Filesize
816KB

Download
memory/3540-161-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-125-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-160-0x0000000007B00000-0x0000000007FFE000-memory.dmp

Filesize
5.0MB

Download
memory/3540-163-0x0000000005170000-0x0000000005176000-memory.dmp

Filesize
24KB

Download
memory/3540-164-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-165-0x0000000007940000-0x00000000079B6000-memory.dmp

Filesize
472KB

Download
memory/3540-166-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-167-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-168-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-169-0x0000000007620000-0x000000000763E000-memory.dmp

Filesize
120KB

Download
memory/3540-170-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-171-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-172-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-173-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-174-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-175-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-181-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-119-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-162-0x00000000076A0000-0x0000000007732000-memory.dmp

Filesize
584KB

Download
memory/3540-120-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-121-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-122-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3540-123-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/3612-211-0x0000000000000000-mapping.dmp

Download
memory/4872-287-0x0000000000402354-mapping.dmp

Download
memory/4888-187-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-178-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-186-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-182-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-179-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-185-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-177-0x0000000000402354-mapping.dmp

Download
memory/4888-176-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4888-184-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-180-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-188-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-189-0x0000000077550000-0x00000000776DE000-memory.dmp

Filesize
1.6MB

Download
memory/4888-216-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads