ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c

Analysis

max time kernel
44s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 07:53

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General

Target

ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
Size

276KB
MD5

66111f80bfc9d06d631320e3e48864cf
SHA1

d1658966b71e4fb798613151d7d49769f19baa1d
SHA256

ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c
SHA512

f524e5c1856c42862f551978a3399187df3351f48eb87603ac897a231f13029adc0f510ac075150e86daccd18f27d265eefbea679f03eaf390c3ad6d7f6cc038
SSDEEP

6144:WC1lss/k4KCMyMU/gZcHpu4PhDX6tksiRQgZOkpmAAGRn74tHB4EjVNS:ll0e1rCtpN

Score

8^/10

bootkit persistence upx

Malware Config

Signatures

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1504-69-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/1504-71-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/1504-72-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/1504-76-0x0000000000400000-0x0000000000418000-memory.dmp	upx
behavioral1/memory/1504-75-0x0000000000400000-0x0000000000418000-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

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 852 set thread context of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 1216 set thread context of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 852 wrote to memory of 1216	852	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	27
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1216 wrote to memory of 1504	1216	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	28
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16
PID 1504 wrote to memory of 1128	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	10
PID 1504 wrote to memory of 1128	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	10
PID 1504 wrote to memory of 1128	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	10
PID 1504 wrote to memory of 1240	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	17
PID 1504 wrote to memory of 1240	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	17
PID 1504 wrote to memory of 1240	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	17
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16
PID 1504 wrote to memory of 1280	1504	ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe	16

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1128

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1280
- C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
  "C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:852
- - C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
    "C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe"
    3⤵
    - Writes to the Master Boot Record (MBR)
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1216
  - - C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe
      "C:\Users\Admin\AppData\Local\Temp\ea120f690c239cabc00127591b2c6016f6d77f1ec0902e71292b2fd7320d0e5c.exe"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:1504

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1240

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/852-54-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/1216-57-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1216-58-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1216-60-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1216-63-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1216-84-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1280-77-0x000000007EFC0000-0x000000007EFD2000-memory.dmp

Filesize
72KB

Download
memory/1280-80-0x000000007EF70000-0x000000007EFB5000-memory.dmp

Filesize
276KB

Download
memory/1504-71-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1504-72-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1504-68-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1504-76-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1504-75-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1504-69-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download