4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24

Analysis

max time kernel
96s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
31/10/2022, 22:08

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General

Target
4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe
Size 322KB
Sample221031-12ebesdef6
SHA256 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 4 IoCs

pid	Process
4480	oobeldr.exe
2832	oobeldr.exe
1300	oobeldr.exe
3452	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1264 set thread context of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 4480 set thread context of 2832	4480	oobeldr.exe	93
PID 1300 set thread context of 3452	1300	oobeldr.exe	97

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
4516	schtasks.exe
3132	schtasks.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1264 wrote to memory of 1236	1264	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	82
PID 1236 wrote to memory of 4516	1236	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	86
PID 1236 wrote to memory of 4516	1236	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	86
PID 1236 wrote to memory of 4516	1236	4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe	86
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 4480 wrote to memory of 2832	4480	oobeldr.exe	93
PID 2832 wrote to memory of 3132	2832	oobeldr.exe	94
PID 2832 wrote to memory of 3132	2832	oobeldr.exe	94
PID 2832 wrote to memory of 3132	2832	oobeldr.exe	94
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97
PID 1300 wrote to memory of 3452	1300	oobeldr.exe	97

C:\Users\Admin\AppData\Local\Temp\4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe
"C:\Users\Admin\AppData\Local\Temp\4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe
  C:\Users\Admin\AppData\Local\Temp\4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1236
- - 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:4516

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:4480
- 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:2832
- - 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:3132

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:1300
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3452

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 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
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 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
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 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
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 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
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 4c39e26434f9e47546e32814853e06d9cd491c3795cef61a2cb57ba862ffcc24
MD5 66dfc574be139178929a8900dcfe9cdb
SHA1 62de99d3a4493ce2dd3c5733c25b2def88a13a61
SHA512 e8d83607884ca28d8ba3e8d266cb22269eee7cd277ffa5faf8256fbf748c8d42c57d39ab21411ccaac2330488b1871b528fdc593976e6392ceaa06ebdf4e1da6
SSDEEP 6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj
MD5 SHA1 SHA512 SSDEEP

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memory/1236-142-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1236-140-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1236-138-0x0000000000400000-0x0000000000406000-memory.dmp

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memory/1264-136-0x0000000005350000-0x000000000536E000-memory.dmp

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memory/1264-135-0x0000000007D90000-0x0000000007E06000-memory.dmp

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memory/1264-132-0x0000000000850000-0x00000000008A6000-memory.dmp

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memory/1264-134-0x0000000007860000-0x00000000078F2000-memory.dmp

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memory/1264-133-0x0000000007E10000-0x00000000083B4000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads