56674e8da86b655373cd8f2b0d3ef63437445038338c4cb4f1d72a2cb17994ab

General

Target

6b38a34c6079a6a17e00b6de1be661dc.exe
Size

196KB
MD5

6b38a34c6079a6a17e00b6de1be661dc
SHA1

2074b4800150dc21d44506bee112245a848a26fe
SHA256

56674e8da86b655373cd8f2b0d3ef63437445038338c4cb4f1d72a2cb17994ab
SHA512

c35a11766b3d20578ef8e8ba3d29d70ecc95c598979610fcb79f05e91734846b00e6269b935ff9b35793c5bfd1a39244d6f6301d8bdda861c8cc63e137c07f8b
SSDEEP

3072:OsnbeX7GNhxpETmFFQXKnq0Cc8Ph9aC8SFbjvanpEhlSjUfTfq8Y:rbeX7GNhxpETmDlnq0Cc8KyWEOjU7f

Score

7^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2840-25-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-30-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-29-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-28-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-27-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-22-0x0000000000400000-0x0000000000417000-memory.dmp	upx
behavioral1/memory/2840-19-0x0000000000400000-0x0000000000417000-memory.dmp	upx

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	6b38a34c6079a6a17e00b6de1be661dc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2192 set thread context of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2676 set thread context of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30

Program crash 1 IoCs

pid	pid_target	Process
2808	2840	WerFault.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2192	6b38a34c6079a6a17e00b6de1be661dc.exe
2676	6b38a34c6079a6a17e00b6de1be661dc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2192 wrote to memory of 2676	2192	6b38a34c6079a6a17e00b6de1be661dc.exe	28
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2676 wrote to memory of 2840	2676	6b38a34c6079a6a17e00b6de1be661dc.exe	30
PID 2840 wrote to memory of 2808	2840	6b38a34c6079a6a17e00b6de1be661dc.exe	29
PID 2840 wrote to memory of 2808	2840	6b38a34c6079a6a17e00b6de1be661dc.exe	29
PID 2840 wrote to memory of 2808	2840	6b38a34c6079a6a17e00b6de1be661dc.exe	29
PID 2840 wrote to memory of 2808	2840	6b38a34c6079a6a17e00b6de1be661dc.exe	29

C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe
"C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe
  "C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe"
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe
    "C:\Users\Admin\AppData\Local\Temp\6b38a34c6079a6a17e00b6de1be661dc.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2840

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 48
1⤵
- Program crash
PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2676-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2676-12-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-31-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-14-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-4-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2676-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2840-30-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-19-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-17-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-22-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-27-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-28-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-29-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2840-25-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads