f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35

Analysis

max time kernel
181s
max time network
188s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 08:59

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General

Target

f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe
Size

9KB
MD5

24c416f16d5e82856fbabc63c80d4e44
SHA1

be3104a97d36295dcbf307bdfe24b816909772a9
SHA256

f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35
SHA512

db4f94d834ccc82c9096909362305422b2b8776d96da064b214c655a5b13c0e353d906c66278c05d392bb65e417da3e4fefebc8f222757f423697400a95bb279
SSDEEP

192:zbSd4ExcXZYadRxM8i6vbn4P0e+/E3J5gERKb6LnFk3fAr:fExGZZjM8i6Tn46IfK6LnFkPA

Score

8^/10

evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1792	netsh.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\system32\\kernels88.exe"	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\kernels88.exe	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe
File opened for modification	C:\Windows\SysWOW64\dlh9jkd1q8.exe	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe
File created	C:\Windows\SysWOW64\kernels88.exe	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4068 wrote to memory of 1792	4068	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe	76
PID 4068 wrote to memory of 1792	4068	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe	76
PID 4068 wrote to memory of 1792	4068	f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe	76

C:\Users\Admin\AppData\Local\Temp\f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe
"C:\Users\Admin\AppData\Local\Temp\f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4068
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall set allowedprogram 'C:\Users\Admin\AppData\Local\Temp\f836e00fdb05593b9f014698b620121ff1cc504946f5b9f2a47c57d2714eff35.exe' enable
  2⤵
  - Modifies Windows Firewall
  PID:1792

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4068-132-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4068-134-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download