flawedammyy | 0a3f9c54fca6da0147b6b29f0d2d67341ac46d6b5d6116c01a2cbe2d1474b0d1

Analysis

max time kernel
128s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
20-09-2023 06:42

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General

Target

Device/HarddiskVolume3/Users/WissamIH/AppData/Local/Microsoft/Edge/User Data/Default/Cache/Cache_Data/f_000d12.exe
Size

798KB
MD5

90aadf2247149996ae443e2c82af3730
SHA1

050b7eba825412b24e3f02d76d7da5ae97e10502
SHA256

ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a
SHA512

eec32bb82b230dd309c29712e72d4469250e651449e127479d178eddbafd5a46ec8048a753bc2c1a0fdf1dc3ed72a9453ca66fb49cbf0f95a12704e5427182be
SSDEEP

24576:Uj0JJ4p/A4npt3XojeQG5EtzRtO7GvmDguXd:UjoJ4u4zojegylDN

Score

10^/10

flawedammyy bootkit persistence trojan

Malware Config

Signatures

FlawedAmmyy RAT
Remote-access trojan based on leaked code for the Ammyy remote admin software.
trojan flawedammyy

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	f_000d12.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4152 wrote to memory of 4200	4152	f_000d12.exe	87
PID 4152 wrote to memory of 4200	4152	f_000d12.exe	87
PID 4152 wrote to memory of 4200	4152	f_000d12.exe	87

C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe"
1⤵
- Writes to the Master Boot Record (MBR)
PID:4376

C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe
"C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:4152
- C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe
  "C:\Users\Admin\AppData\Local\Temp\Device\HarddiskVolume3\Users\WissamIH\AppData\Local\Microsoft\Edge\User Data\Default\Cache\Cache_Data\f_000d12.exe"
  2⤵
  PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\AMMYY\settings3.bin

Filesize
327B

MD5
27b4a77ae13808eafc079a48ac73da1a

SHA1
f6517712173befd62e270a4a87f7b9fc96eee5ac

SHA256
2af3b7e9eab22c699e717d2870472f2d15fa14225b946f5419953937c60183d6

SHA512
396fa64679089a9b72249c1987b4e35b9db18a64825d5e43731e6c85ace47cfd2c1b6e39ab507c3d035c5bf8043d4d7adbec1ab74ba8da506f555eb4dba85c5f

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads