bee5f76f3cc9bf2ae2a71a4136d7b3d110e43cef60bb253a3a7301b3f58e5d9f

Analysis

max time kernel
91s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
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
1312	oobeldr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
956	3768	WerFault.exe	78

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
4012	schtasks.exe
4492	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3768 wrote to memory of 4012	3768	c15ef7531e3b7f702e31a4a8c6a3533d.exe	81
PID 3768 wrote to memory of 4012	3768	c15ef7531e3b7f702e31a4a8c6a3533d.exe	81
PID 3768 wrote to memory of 4012	3768	c15ef7531e3b7f702e31a4a8c6a3533d.exe	81
PID 1312 wrote to memory of 4492	1312	oobeldr.exe	93
PID 1312 wrote to memory of 4492	1312	oobeldr.exe	93
PID 1312 wrote to memory of 4492	1312	oobeldr.exe	93

C:\Users\Admin\AppData\Local\Temp\c15ef7531e3b7f702e31a4a8c6a3533d.exe
"C:\Users\Admin\AppData\Local\Temp\c15ef7531e3b7f702e31a4a8c6a3533d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3768
- 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:4012
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 608
  2⤵
  - Program crash
  PID:956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3768 -ip 3768
1⤵
PID:620

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 WriteProcessMemory
PID:1312
- 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:4492

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/1312-136-0x00000000006DC000-0x00000000006ED000-memory.dmp

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memory/1312-137-0x00000000006DC000-0x00000000006ED000-memory.dmp

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memory/1312-138-0x0000000000400000-0x0000000000474000-memory.dmp

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memory/3768-130-0x000000000060D000-0x000000000061D000-memory.dmp

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memory/3768-131-0x000000000060D000-0x000000000061D000-memory.dmp

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memory/3768-132-0x00000000005D0000-0x00000000005D4000-memory.dmp

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memory/3768-133-0x0000000000400000-0x0000000000474000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads