6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5

Analysis

max time kernel
122s
max time network
141s
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, 10:35

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General

Target
6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
Size 324KB
Sample221101-mm661aahd4
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 5 IoCs

pid	Process
4916	oobeldr.exe
4468	oobeldr.exe
4152	oobeldr.exe
2492	oobeldr.exe
380	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4336 set thread context of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4916 set thread context of 4152	4916	oobeldr.exe	92
PID 2492 set thread context of 380	2492	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
1348	schtasks.exe
748	schtasks.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 4060	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	79
PID 4336 wrote to memory of 4060	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	79
PID 4336 wrote to memory of 4060	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	79
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 4336 wrote to memory of 1404	4336	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	83
PID 1404 wrote to memory of 1348	1404	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	85
PID 1404 wrote to memory of 1348	1404	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	85
PID 1404 wrote to memory of 1348	1404	6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe	85
PID 4916 wrote to memory of 4468	4916	oobeldr.exe	91
PID 4916 wrote to memory of 4468	4916	oobeldr.exe	91
PID 4916 wrote to memory of 4468	4916	oobeldr.exe	91
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4916 wrote to memory of 4152	4916	oobeldr.exe	92
PID 4152 wrote to memory of 748	4152	oobeldr.exe	93
PID 4152 wrote to memory of 748	4152	oobeldr.exe	93
PID 4152 wrote to memory of 748	4152	oobeldr.exe	93
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96
PID 2492 wrote to memory of 380	2492	oobeldr.exe	96

C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
"C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4336
- C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
  C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
  2⤵
  PID:4060
- C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
  C:\Users\Admin\AppData\Local\Temp\6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1404
- - 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:1348

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:4916
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:4468
- 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:4152
- - 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:748

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:2492
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:380

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 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
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 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
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 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
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 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

Submit Download

oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

Submit Download

oobeldr.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
Size 324KB
SHA256 6c527881ef54e9db63b8a734f5d824b8ee1cff981f0ea1b67595515c8efcebb5
MD5 dd70f8eb6e07166d59cc0d7146819662
SHA1 677c9269c098e45113301ecfee96bf6857abaf1f
SHA512 549fd931b4119b6fd3b7696e78b835d28970bbd8ce64dd53bcb2a43185717780f02a13ec0d248f0dd361740c11483a600df1a659399d66fc6ddb06d03f59ec7b
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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memory/1404-142-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1404-140-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1404-138-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/4336-132-0x0000000000C60000-0x0000000000CB6000-memory.dmp

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memory/4336-136-0x0000000005750000-0x000000000576E000-memory.dmp

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memory/4336-135-0x0000000007EF0000-0x0000000007F66000-memory.dmp

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memory/4336-134-0x0000000007C50000-0x0000000007CE2000-memory.dmp

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memory/4336-133-0x0000000008120000-0x00000000086C4000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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