903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

Analysis

max time kernel
101s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/11/2022, 08:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe
Size

323KB
MD5

3622e0abe1b75f7e7d42bc9024a321d2
SHA1

2395527f93d9331c653f9c5e9d7a95b729425d66
SHA256

903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893
SHA512

aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
320	oobeldr.exe
1632	oobeldr.exe
2032	oobeldr.exe
2992	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5112 set thread context of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 320 set thread context of 1632	320	oobeldr.exe	91
PID 2032 set thread context of 2992	2032	oobeldr.exe	95

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
4844	schtasks.exe
2248	schtasks.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 5112 wrote to memory of 4852	5112	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	80
PID 4852 wrote to memory of 4844	4852	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	81
PID 4852 wrote to memory of 4844	4852	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	81
PID 4852 wrote to memory of 4844	4852	903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe	81
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 320 wrote to memory of 1632	320	oobeldr.exe	91
PID 1632 wrote to memory of 2248	1632	oobeldr.exe	92
PID 1632 wrote to memory of 2248	1632	oobeldr.exe	92
PID 1632 wrote to memory of 2248	1632	oobeldr.exe	92
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95
PID 2032 wrote to memory of 2992	2032	oobeldr.exe	95

C:\Users\Admin\AppData\Local\Temp\903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe
"C:\Users\Admin\AppData\Local\Temp\903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe
  C:\Users\Admin\AppData\Local\Temp\903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4852
- - 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:4844

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:320
- 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:1632
- - 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:2248

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:2032
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:2992

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

Loading Replay Monitor...

Downloads

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

Filesize
789B

MD5
03d2df1e8834bc4ec1756735429b458c

SHA1
4ee6c0f5b04c8e0c5076219c5724032daab11d40

SHA256
745ab70552d9a0463b791fd8dc1942838ac3e34fb1a68f09ed3766c7e3b05631

SHA512
2482c3d4478125ccbc7f224f50e86b7bf925ed438b59f4dce57b9b6bcdb59df51417049096b131b6b911173550eed98bc92aba7050861de303a692f0681b197b

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

Filesize
323KB

MD5
3622e0abe1b75f7e7d42bc9024a321d2

SHA1
2395527f93d9331c653f9c5e9d7a95b729425d66

SHA256
903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

SHA512
aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9

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

Filesize
323KB

MD5
3622e0abe1b75f7e7d42bc9024a321d2

SHA1
2395527f93d9331c653f9c5e9d7a95b729425d66

SHA256
903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

SHA512
aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9

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

Filesize
323KB

MD5
3622e0abe1b75f7e7d42bc9024a321d2

SHA1
2395527f93d9331c653f9c5e9d7a95b729425d66

SHA256
903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

SHA512
aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9

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

Filesize
323KB

MD5
3622e0abe1b75f7e7d42bc9024a321d2

SHA1
2395527f93d9331c653f9c5e9d7a95b729425d66

SHA256
903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

SHA512
aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9

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

Filesize
323KB

MD5
3622e0abe1b75f7e7d42bc9024a321d2

SHA1
2395527f93d9331c653f9c5e9d7a95b729425d66

SHA256
903b8cda0a5b8c54d331eea250f8c9ab2013703167927794b1e32892bd5d0893

SHA512
aa06551a31558eba0efc126004012a49c52800491b25622efa49261b84140d47f2c9bcff585ffe5352c5937245bcdc51af5186193d9f97de6dba279063e485d9

Download Submit
memory/4852-142-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4852-140-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4852-138-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/5112-132-0x0000000000DF0000-0x0000000000E46000-memory.dmp

Filesize
344KB

Download
memory/5112-136-0x0000000005940000-0x000000000595E000-memory.dmp

Filesize
120KB

Download
memory/5112-135-0x00000000080B0000-0x0000000008126000-memory.dmp

Filesize
472KB

Download
memory/5112-134-0x0000000007E10000-0x0000000007EA2000-memory.dmp

Filesize
584KB

Download
memory/5112-133-0x0000000008320000-0x00000000088C4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads