netfilter | a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4

Analysis

max time kernel
7s
max time network
39s
platform
windows7_x64
resource
win7v20210410
submitted
18-06-2021 20:08

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General

Target

a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe
Size

9KB
MD5

8bf00ef4dd6bb308c76849901b03ccbd
SHA1

04e8a8d30869cf60ad42825667224d5cd01ade15
SHA256

a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4
SHA512

551365e55dbe599a156d1de1e59e388878e13d3a491efe963fda241ec58c1c38aaf2d46775c4e1d3c46760d081561f9ab5be9468974e4693a9b3c60a4478b454

Score

10^/10

netfilter persistence rootkit

Malware Config

Signatures

NetFilter
NetFilter is a rootkit first seen in June 2021.
rootkit netfilter
Downloads MZ/PE file
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeLoadDriverPrivilege	1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 1500	1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe	32
PID 1088 wrote to memory of 1500	1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe	32
PID 1088 wrote to memory of 1500	1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe	32
PID 1088 wrote to memory of 1500	1088	a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe	32

C:\Users\Admin\AppData\Local\Temp\a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe
"C:\Users\Admin\AppData\Local\Temp\a5c873085f36f69f29bb8895eb199d42ce86b16da62c56680917149b97e6dac4.bin.exe"
1⤵
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\regini.exe
  "C:\Windows\System32\regini.exe" c.xalm
  2⤵
  PID:1500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1088-59-0x0000000075561000-0x0000000075563000-memory.dmp

Filesize
8KB

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