91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

Analysis

max time kernel
123s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2023, 07:50

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General

Target

91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
Size

328KB
MD5

9dd260f59b27ecb1ccd98a741f60f36f
SHA1

54b672925a7dd7d14a7c48b7509445b050cf829d
SHA256

91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28
SHA512

831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4808	oobeldr.exe
4092	oobeldr.exe
816	oobeldr.exe
3712	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4648 set thread context of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4808 set thread context of 4092	4808	oobeldr.exe	85
PID 816 set thread context of 3712	816	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
4208	schtasks.exe
4252	schtasks.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 5048	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	79
PID 4648 wrote to memory of 5048	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	79
PID 4648 wrote to memory of 5048	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	79
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4648 wrote to memory of 4644	4648	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	80
PID 4644 wrote to memory of 4208	4644	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	81
PID 4644 wrote to memory of 4208	4644	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	81
PID 4644 wrote to memory of 4208	4644	91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe	81
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4808 wrote to memory of 4092	4808	oobeldr.exe	85
PID 4092 wrote to memory of 4252	4092	oobeldr.exe	86
PID 4092 wrote to memory of 4252	4092	oobeldr.exe	86
PID 4092 wrote to memory of 4252	4092	oobeldr.exe	86
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95
PID 816 wrote to memory of 3712	816	oobeldr.exe	95

C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
"C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
  C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
  2⤵
  PID:5048
- C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
  C:\Users\Admin\AppData\Local\Temp\91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4644
- - 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:4208

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:4808
- 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:4092
- - 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:4252

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:816
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3712

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
03d2df1e8834bc4ec1756735429b458c

SHA1
4ee6c0f5b04c8e0c5076219c5724032daab11d40

SHA256
745ab70552d9a0463b791fd8dc1942838ac3e34fb1a68f09ed3766c7e3b05631

SHA512
2482c3d4478125ccbc7f224f50e86b7bf925ed438b59f4dce57b9b6bcdb59df51417049096b131b6b911173550eed98bc92aba7050861de303a692f0681b197b

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

Filesize
328KB

MD5
9dd260f59b27ecb1ccd98a741f60f36f

SHA1
54b672925a7dd7d14a7c48b7509445b050cf829d

SHA256
91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

SHA512
831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720

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

Filesize
328KB

MD5
9dd260f59b27ecb1ccd98a741f60f36f

SHA1
54b672925a7dd7d14a7c48b7509445b050cf829d

SHA256
91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

SHA512
831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720

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

Filesize
328KB

MD5
9dd260f59b27ecb1ccd98a741f60f36f

SHA1
54b672925a7dd7d14a7c48b7509445b050cf829d

SHA256
91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

SHA512
831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720

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

Filesize
328KB

MD5
9dd260f59b27ecb1ccd98a741f60f36f

SHA1
54b672925a7dd7d14a7c48b7509445b050cf829d

SHA256
91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

SHA512
831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720

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

Filesize
328KB

MD5
9dd260f59b27ecb1ccd98a741f60f36f

SHA1
54b672925a7dd7d14a7c48b7509445b050cf829d

SHA256
91e8136d9082efd2a2da0d113070d49efc043c25aef780db246132b6c955bd28

SHA512
831d39782f7329c428f5ed343402963ca6eb7d5dba772eedae5a72b294d87a7d3b31d23037c5da7d1559476448f2efa98b97e8252c2eed70c128aa88fe7a7720

Download Submit
memory/4644-142-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4644-140-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4644-138-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4648-132-0x0000000000630000-0x0000000000686000-memory.dmp

Filesize
344KB

Download
memory/4648-136-0x0000000005240000-0x000000000525E000-memory.dmp

Filesize
120KB

Download
memory/4648-135-0x00000000078E0000-0x0000000007956000-memory.dmp

Filesize
472KB

Download
memory/4648-134-0x0000000007640000-0x00000000076D2000-memory.dmp

Filesize
584KB

Download
memory/4648-133-0x0000000007B50000-0x00000000080F4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads