c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

Analysis

max time kernel
132s
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
03-02-2023 07:09

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General

Target

c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe
Size

328KB
MD5

c546de3fefa38c9255829684d5b030a4
SHA1

6b1e7a99021ff171d7299c956af426c406e1f461
SHA256

c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930
SHA512

3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4396	oobeldr.exe
604	oobeldr.exe
1928	oobeldr.exe
3640	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 764 set thread context of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 4396 set thread context of 604	4396	oobeldr.exe	86
PID 1928 set thread context of 3640	1928	oobeldr.exe	96

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
3408	schtasks.exe
4984	schtasks.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 764 wrote to memory of 2240	764	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	81
PID 2240 wrote to memory of 3408	2240	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	82
PID 2240 wrote to memory of 3408	2240	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	82
PID 2240 wrote to memory of 3408	2240	c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe	82
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 4396 wrote to memory of 604	4396	oobeldr.exe	86
PID 604 wrote to memory of 4984	604	oobeldr.exe	87
PID 604 wrote to memory of 4984	604	oobeldr.exe	87
PID 604 wrote to memory of 4984	604	oobeldr.exe	87
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96
PID 1928 wrote to memory of 3640	1928	oobeldr.exe	96

C:\Users\Admin\AppData\Local\Temp\c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe
"C:\Users\Admin\AppData\Local\Temp\c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:764
- C:\Users\Admin\AppData\Local\Temp\c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe
  C:\Users\Admin\AppData\Local\Temp\c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2240
- - 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:3408

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:4396
- 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:604
- - 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:4984

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:1928
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3640

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
c546de3fefa38c9255829684d5b030a4

SHA1
6b1e7a99021ff171d7299c956af426c406e1f461

SHA256
c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

SHA512
3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702

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

Filesize
328KB

MD5
c546de3fefa38c9255829684d5b030a4

SHA1
6b1e7a99021ff171d7299c956af426c406e1f461

SHA256
c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

SHA512
3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702

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

Filesize
328KB

MD5
c546de3fefa38c9255829684d5b030a4

SHA1
6b1e7a99021ff171d7299c956af426c406e1f461

SHA256
c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

SHA512
3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702

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

Filesize
328KB

MD5
c546de3fefa38c9255829684d5b030a4

SHA1
6b1e7a99021ff171d7299c956af426c406e1f461

SHA256
c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

SHA512
3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702

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

Filesize
328KB

MD5
c546de3fefa38c9255829684d5b030a4

SHA1
6b1e7a99021ff171d7299c956af426c406e1f461

SHA256
c1d355029858fe03442e184aa08f8f1bfe3f3a4eeb0405301c0566e44090e930

SHA512
3f1dd437cee84037717eca91e41e24aacdf15a89bab2cd85eddae3204e680181692c53b9b32906496665c2d82903145a3823d293e273160a8250128d77eb1702

Download Submit
memory/764-136-0x0000000007930000-0x000000000794E000-memory.dmp

Filesize
120KB

Download
memory/764-132-0x00000000009A0000-0x00000000009F6000-memory.dmp

Filesize
344KB

Download
memory/764-135-0x0000000007C80000-0x0000000007CF6000-memory.dmp

Filesize
472KB

Download
memory/764-134-0x0000000007960000-0x00000000079F2000-memory.dmp

Filesize
584KB

Download
memory/764-133-0x0000000007E70000-0x0000000008414000-memory.dmp

Filesize
5.6MB

Download
memory/2240-142-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2240-140-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2240-138-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads