66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03/02/2023, 09:39

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General

Target

66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe
Size

329KB
MD5

0e3bb9b05a6dc18f2f3e6ac692647263
SHA1

89948240b9983f7158c382aeecfcbafc539fb01e
SHA256

66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4
SHA512

905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 10 IoCs

pid	Process
3824	oobeldr.exe
3504	oobeldr.exe
3048	oobeldr.exe
2092	oobeldr.exe
4984	oobeldr.exe
3672	oobeldr.exe
4448	oobeldr.exe
4880	oobeldr.exe
3528	oobeldr.exe
1640	oobeldr.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 3824 set thread context of 2092	3824	oobeldr.exe	93
PID 4984 set thread context of 4880	4984	oobeldr.exe	100
PID 3528 set thread context of 1640	3528	oobeldr.exe	102

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
4276	schtasks.exe
788	schtasks.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 2104 wrote to memory of 3340	2104	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	80
PID 3340 wrote to memory of 4276	3340	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	84
PID 3340 wrote to memory of 4276	3340	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	84
PID 3340 wrote to memory of 4276	3340	66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe	84
PID 3824 wrote to memory of 3504	3824	oobeldr.exe	90
PID 3824 wrote to memory of 3504	3824	oobeldr.exe	90
PID 3824 wrote to memory of 3504	3824	oobeldr.exe	90
PID 3824 wrote to memory of 3048	3824	oobeldr.exe	91
PID 3824 wrote to memory of 3048	3824	oobeldr.exe	91
PID 3824 wrote to memory of 3048	3824	oobeldr.exe	91
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 3824 wrote to memory of 2092	3824	oobeldr.exe	93
PID 2092 wrote to memory of 788	2092	oobeldr.exe	94
PID 2092 wrote to memory of 788	2092	oobeldr.exe	94
PID 2092 wrote to memory of 788	2092	oobeldr.exe	94
PID 4984 wrote to memory of 3672	4984	oobeldr.exe	98
PID 4984 wrote to memory of 3672	4984	oobeldr.exe	98
PID 4984 wrote to memory of 3672	4984	oobeldr.exe	98
PID 4984 wrote to memory of 4448	4984	oobeldr.exe	99
PID 4984 wrote to memory of 4448	4984	oobeldr.exe	99
PID 4984 wrote to memory of 4448	4984	oobeldr.exe	99
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 4984 wrote to memory of 4880	4984	oobeldr.exe	100
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102
PID 3528 wrote to memory of 1640	3528	oobeldr.exe	102

C:\Users\Admin\AppData\Local\Temp\66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe
"C:\Users\Admin\AppData\Local\Temp\66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Users\Admin\AppData\Local\Temp\66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe
  C:\Users\Admin\AppData\Local\Temp\66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3340
- - 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:4276

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:3824
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3504
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3048
- 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:2092
- - 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:788

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:4984
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3672
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:4448
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:4880

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:3528
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:1640

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\oobeldr.exe.log

Filesize
789B

MD5
03d2df1e8834bc4ec1756735429b458c

SHA1
4ee6c0f5b04c8e0c5076219c5724032daab11d40

SHA256
745ab70552d9a0463b791fd8dc1942838ac3e34fb1a68f09ed3766c7e3b05631

SHA512
2482c3d4478125ccbc7f224f50e86b7bf925ed438b59f4dce57b9b6bcdb59df51417049096b131b6b911173550eed98bc92aba7050861de303a692f0681b197b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe

Filesize
329KB

MD5
0e3bb9b05a6dc18f2f3e6ac692647263

SHA1
89948240b9983f7158c382aeecfcbafc539fb01e

SHA256
66f7ff2cb8f7e38f54225b01271efc9feea9c4f796aaf520f122963d3be8ace4

SHA512
905e311b1e19105b27ce18ef16aa21f9a9f98433c412f68289f1a5dfcfeda4befa079bf74199c2c48b6d13faee6df0b3eeb7d3335291a3492c072a81623b7c6c

Download Submit
memory/2104-136-0x0000000005C00000-0x0000000005C1E000-memory.dmp

Filesize
120KB

Download
memory/2104-132-0x0000000000FF0000-0x0000000001046000-memory.dmp

Filesize
344KB

Download
memory/2104-134-0x0000000008060000-0x00000000080F2000-memory.dmp

Filesize
584KB

Download
memory/2104-133-0x0000000008610000-0x0000000008BB4000-memory.dmp

Filesize
5.6MB

Download
memory/2104-135-0x0000000008300000-0x0000000008376000-memory.dmp

Filesize
472KB

Download
memory/3340-142-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3340-140-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3340-138-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads