48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d

Analysis

max time kernel
131s
max time network
154s
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, 01:39

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General

Target
48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
Size 322KB
Sample221101-b3dzlsfac5
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
3800	oobeldr.exe
1800	oobeldr.exe
4844	oobeldr.exe
1240	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4772 set thread context of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 3800 set thread context of 1800	3800	oobeldr.exe	92
PID 4844 set thread context of 1240	4844	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
2056	schtasks.exe
1476	schtasks.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 4772 wrote to memory of 4732	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	80
PID 4772 wrote to memory of 4732	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	80
PID 4772 wrote to memory of 4732	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	80
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 4772 wrote to memory of 5104	4772	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	84
PID 5104 wrote to memory of 2056	5104	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	86
PID 5104 wrote to memory of 2056	5104	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	86
PID 5104 wrote to memory of 2056	5104	48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe	86
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 3800 wrote to memory of 1800	3800	oobeldr.exe	92
PID 1800 wrote to memory of 1476	1800	oobeldr.exe	93
PID 1800 wrote to memory of 1476	1800	oobeldr.exe	93
PID 1800 wrote to memory of 1476	1800	oobeldr.exe	93
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96
PID 4844 wrote to memory of 1240	4844	oobeldr.exe	96

C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
"C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4772
- C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
  C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
  2⤵
  PID:4732
- C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
  C:\Users\Admin\AppData\Local\Temp\48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5104
- - 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:2056

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:3800
- 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:1800
- - 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:1476

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:4844
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:1240

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

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Downloads

oobeldr.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\oobeldr.exe.log
Size 789B
SHA256 745ab70552d9a0463b791fd8dc1942838ac3e34fb1a68f09ed3766c7e3b05631
MD5 03d2df1e8834bc4ec1756735429b458c
SHA1 4ee6c0f5b04c8e0c5076219c5724032daab11d40
SHA512 2482c3d4478125ccbc7f224f50e86b7bf925ed438b59f4dce57b9b6bcdb59df51417049096b131b6b911173550eed98bc92aba7050861de303a692f0681b197b
MD5 SHA1 SHA512

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 322KB
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 322KB
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 322KB
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 322KB
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 322KB
SHA256 48408825eec926371ffa144d89565a670990f61f59f9dac5da2ceec9e243845d
MD5 f81dbf422ad5ac87b216a1c0580a3406
SHA1 a9a1e707de74379e25d1cb75cadac4ceb33ca46e
SHA512 f28c560011646ea7d96c69e3aedda7fcad60990b9d8f8346d6022da4ab44f4bb460ce561d7fc493d68384ad13baa611dbb3024e3cde57b7741efde15e4e35eb1
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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memory/4772-132-0x0000000000CA0000-0x0000000000CF6000-memory.dmp

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memory/4772-136-0x00000000057F0000-0x000000000580E000-memory.dmp

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memory/4772-135-0x0000000007F80000-0x0000000007FF6000-memory.dmp

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memory/4772-134-0x0000000007CE0000-0x0000000007D72000-memory.dmp

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memory/4772-133-0x00000000081F0000-0x0000000008794000-memory.dmp

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memory/5104-142-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/5104-140-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/5104-138-0x0000000000400000-0x0000000000406000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads