c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

Analysis

max time kernel
121s
max time network
149s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
02/11/2022, 04:17

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General

Target

c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
Size

326KB
MD5

d79cc39e7272ad5ada6867288c621475
SHA1

11a635eb3ef3863006513d21de673ad7037ed375
SHA256

c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b
SHA512

834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc
SSDEEP

6144:eKlzr1sYCzek2ciDaP9Xk6Ln1W8W/9InBSkZZmLdGcAdgdY6RKpjS:eGhQ2ciDq9ZL1W8q9InBRqELdolRKpj

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 5 IoCs

pid	Process
8	oobeldr.exe
3492	oobeldr.exe
4092	oobeldr.exe
4580	oobeldr.exe
1604	oobeldr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4696 set thread context of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 8 set thread context of 4092	8	oobeldr.exe	72
PID 4580 set thread context of 1604	4580	oobeldr.exe	76

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
3112	schtasks.exe
5012	schtasks.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 4832	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	66
PID 4696 wrote to memory of 4832	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	66
PID 4696 wrote to memory of 4832	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	66
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4696 wrote to memory of 4840	4696	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	67
PID 4840 wrote to memory of 3112	4840	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	68
PID 4840 wrote to memory of 3112	4840	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	68
PID 4840 wrote to memory of 3112	4840	c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe	68
PID 8 wrote to memory of 3492	8	oobeldr.exe	71
PID 8 wrote to memory of 3492	8	oobeldr.exe	71
PID 8 wrote to memory of 3492	8	oobeldr.exe	71
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 8 wrote to memory of 4092	8	oobeldr.exe	72
PID 4092 wrote to memory of 5012	4092	oobeldr.exe	73
PID 4092 wrote to memory of 5012	4092	oobeldr.exe	73
PID 4092 wrote to memory of 5012	4092	oobeldr.exe	73
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76
PID 4580 wrote to memory of 1604	4580	oobeldr.exe	76

C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
"C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
  C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
  2⤵
  PID:4832
- C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
  C:\Users\Admin\AppData\Local\Temp\c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4840
- - 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:3112

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:8
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:3492
- 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:4092
- - 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:5012

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:4580
- C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  C:\Users\Admin\AppData\Roaming\Microsoft\Protect\oobeldr.exe
  2⤵
  - Executes dropped EXE
  PID:1604

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
db5ef8d7c51bad129d9097bf953e4913

SHA1
8439db960aa2d431bf5ec3c37af775b45eb07e06

SHA256
1248e67f10b47b397af3c8cbe342bad4be75c68b8e10f4ec6341195cc3138bd9

SHA512
04572485790b25e1751347e43b47174051cd153dd75fd55ee5590d25a2579f344cd96cf86cf45bdb7759e3e6d0f734d0ff717148ca70f501b9869e964e036fee

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

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

Filesize
326KB

MD5
d79cc39e7272ad5ada6867288c621475

SHA1
11a635eb3ef3863006513d21de673ad7037ed375

SHA256
c8789bcfa45719a6caf7be4e0b83e3d8667d4bf909af3e1918cb3d8efcf1a84b

SHA512
834b026c458992bc3359e7037a39c2cc6d24ab8dff69d3f8cb60dbfba1cc24b45b949a10501fbc5c5b716cef7d5e5d6f4b670abcb1b7b11d6aaba492ec8e18dc

Download Submit
memory/4696-155-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-162-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-127-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-128-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-129-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-130-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-131-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-132-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-133-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-134-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-135-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-136-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-137-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-138-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-139-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-140-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-141-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-142-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-143-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-144-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-145-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-146-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-147-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-148-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-149-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-150-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-151-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-152-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-153-0x0000000000DA0000-0x0000000000DF6000-memory.dmp

Filesize
344KB

Download
memory/4696-154-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-125-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-156-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-157-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-158-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-159-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-160-0x0000000007A70000-0x0000000007B3C000-memory.dmp

Filesize
816KB

Download
memory/4696-161-0x0000000008040000-0x000000000853E000-memory.dmp

Filesize
5.0MB

Download
memory/4696-126-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-163-0x0000000007BE0000-0x0000000007C72000-memory.dmp

Filesize
584KB

Download
memory/4696-164-0x0000000007B60000-0x0000000007B66000-memory.dmp

Filesize
24KB

Download
memory/4696-165-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-166-0x0000000007F00000-0x0000000007F76000-memory.dmp

Filesize
472KB

Download
memory/4696-167-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-168-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-169-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-170-0x0000000007BB0000-0x0000000007BCE000-memory.dmp

Filesize
120KB

Download
memory/4696-171-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-172-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-173-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-174-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-175-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-176-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-181-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-119-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-120-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-121-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-122-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-123-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4696-124-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-190-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-188-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-189-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-183-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-182-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-231-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4840-186-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-187-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-177-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/4840-180-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-179-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download
memory/4840-185-0x0000000077740000-0x00000000778CE000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads