bee5f76f3cc9bf2ae2a71a4136d7b3d110e43cef60bb253a3a7301b3f58e5d9f

Analysis

max time kernel
4294179s
max time network
123s
platform
windows7_x64
resource
win7-20220310-en
submitted
21/03/2022, 04:12

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General

Target
c15ef7531e3b7f702e31a4a8c6a3533d.exe
Size 291KB
Sample220321-esh3csghe7
SHA256 bee5f76f3cc9bf2ae2a71a4136d7b3d110e43cef60bb253a3a7301b3f58e5d9f
MD5 c15ef7531e3b7f702e31a4a8c6a3533d
SHA1 c9e5cd30b2e18dc42b70a5f6f1276dd883c7abae
SHA512 f3438f70164705ed65e5954af7ad3a09f604c20a2e38f4eb378df938c51693bf7c23735c1ae961d86df8153dc814ddef75f5de02d7163bc65350d74bc9dadb67
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
984	oobeldr.exe

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
2024	schtasks.exe
1636	schtasks.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 2024	1824	c15ef7531e3b7f702e31a4a8c6a3533d.exe	27
PID 1824 wrote to memory of 2024	1824	c15ef7531e3b7f702e31a4a8c6a3533d.exe	27
PID 1824 wrote to memory of 2024	1824	c15ef7531e3b7f702e31a4a8c6a3533d.exe	27
PID 1824 wrote to memory of 2024	1824	c15ef7531e3b7f702e31a4a8c6a3533d.exe	27
PID 928 wrote to memory of 984	928	taskeng.exe	32
PID 928 wrote to memory of 984	928	taskeng.exe	32
PID 928 wrote to memory of 984	928	taskeng.exe	32
PID 928 wrote to memory of 984	928	taskeng.exe	32
PID 984 wrote to memory of 1636	984	oobeldr.exe	33
PID 984 wrote to memory of 1636	984	oobeldr.exe	33
PID 984 wrote to memory of 1636	984	oobeldr.exe	33
PID 984 wrote to memory of 1636	984	oobeldr.exe	33

C:\Users\Admin\AppData\Local\Temp\c15ef7531e3b7f702e31a4a8c6a3533d.exe
"C:\Users\Admin\AppData\Local\Temp\c15ef7531e3b7f702e31a4a8c6a3533d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1824
- 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"
  2⤵
  - Creates scheduled task(s)
  PID:2024

C:\Windows\system32\taskeng.exe
taskeng.exe {F3295A17-7003-43A7-8DBA-954343E18E91} S-1-5-21-2932610838-281738825-1127631353-1000:NXLKCZKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:928
- 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:984
- - 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:1636

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

memory/984-61-0x00000000005FB000-0x000000000060C000-memory.dmp

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memory/984-63-0x00000000005FB000-0x000000000060C000-memory.dmp

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memory/984-64-0x0000000000400000-0x0000000000474000-memory.dmp

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memory/1824-54-0x000000000062B000-0x000000000063C000-memory.dmp

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memory/1824-55-0x0000000075C31000-0x0000000075C33000-memory.dmp

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memory/1824-57-0x0000000000220000-0x0000000000224000-memory.dmp

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memory/1824-56-0x000000000062B000-0x000000000063C000-memory.dmp

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memory/1824-58-0x0000000000400000-0x0000000000474000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads