Overview

overview

10

Static

static

8

New order.xls

windows7_x64

1

New order.xls

windows10_x64

10

Sharing

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General

  • Target

    New order.xls

  • Size

    80KB

  • Sample

    201213-sl6ze1zd2x

  • MD5

    bfa6b801f26f67cc2231d4191a2486e5

  • SHA1

    d6c3fe24036c6b402eeb80e065a11280aa236625

  • SHA256

    076c11df218d9fd86a809bb3e3b4a9c2211caad31e630d731d64592bee49eec4

  • SHA512

    b06a89f9606533c9c7c6c0884c76c7e59919e1b66425e7e7f97d11bb2faafea80ed379c056c440269f3c6b132c297ea90172f54f893600747609d67a1202367b

Score
10/10
asyncratevasionmacrorat

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://tinyurl.com/y6fpv3lj

Extracted

Family

asyncrat

Version

0.5.7B

C2

66.63.162.20:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    RrDsbyhuW4EmI2uyYOZXhcgJIPtjUanF

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    Default

  • host

    66.63.162.20

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    6606

  • version

    0.5.7B

aes.plain

Targets

    • Target

      New order.xls

    • Size

      80KB

    • MD5

      bfa6b801f26f67cc2231d4191a2486e5

    • SHA1

      d6c3fe24036c6b402eeb80e065a11280aa236625

    • SHA256

      076c11df218d9fd86a809bb3e3b4a9c2211caad31e630d731d64592bee49eec4

    • SHA512

      b06a89f9606533c9c7c6c0884c76c7e59919e1b66425e7e7f97d11bb2faafea80ed379c056c440269f3c6b132c297ea90172f54f893600747609d67a1202367b

    Score
    10/10
    asyncratevasionrat

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Async RAT payload

      rat

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks