flawedammyy | ee573647477339784dcef81024de1be1762833a20e5cc2b89a93e47d05b86b6a

Analysis

max time kernel
124s
max time network
33s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
22/01/2023, 10:00

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General

Target

tmp.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

T1067

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
948	tmp.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1552 wrote to memory of 948	1552	tmp.exe	29
PID 1552 wrote to memory of 948	1552	tmp.exe	29
PID 1552 wrote to memory of 948	1552	tmp.exe	29
PID 1552 wrote to memory of 948	1552	tmp.exe	29

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Writes to the Master Boot Record (MBR)
PID:1616

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe" -service -lunch
1⤵
- Suspicious use of WriteProcessMemory
PID:1552
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  PID:948

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

C:\ProgramData\AMMYY\settings3.bin

Filesize
327B

MD5
60753ea4cc78b184cb93b2eb98f22daa

SHA1
d53b1ca3bff75067f667589e6c389c5a34cd04c3

SHA256
d8b064961049171842797aff55ac3d874be84f0cab2d9a2b7369d8a6017cd0a3

SHA512
2a773a761458cbc7a211b685346503b99bdf7988c7c1be08e9e82378843f7bf603a5002c25d77618e6a0b805e5f630949d76093b368d5c2a6ee43192a45bb964

Download Submit
memory/1616-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

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