Overview

overview

10

Static

static

1

dridex

windows10-1703-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10-03-2023 07:02

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General

  • Target

    790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8.exe

  • Size

    328KB

  • MD5

    a48ea904f9779965d0285697eea2a62c

  • SHA1

    93e54c1e722ef60808ce3729f87ed082e3f0e973

  • SHA256

    790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8

  • SHA512

    a4dc0b3511c3dd8bd1b5d4ccaecbb63344551cf0c0de72fd476ba8223969e1c4e508331c75be8c56d2b6f1810cd9de680812c88ed4a06c786f8c4654535cf2b1

  • SSDEEP

    6144:evSBanJK/5kPas8N0HEAAf1vbViarAWbd33XEPT:evjas8uHEAAtvBpkCEPT

Score
10/10
pseudomanuscryptloader

Malware Config

Signatures

  • Detects PseudoManuscrypt payload 28 IoCs
    loader
  • Process spawned unexpected child process 1 IoCs

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

  • PseudoManuscrypt

    PseudoManuscrypt is a malware Lazarus’s Manuscrypt targeting government organizations and ICS.

    loaderpseudomanuscrypt
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 16 IoCs
  • Modifies registry class 64 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Browser
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k WspService
      2⤵
      • Drops file in System32 directory
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      PID:4148
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s WpnService
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2360
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2352
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2344
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2264
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1848
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s SENS
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1452
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1380
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Themes
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1268
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1144
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Schedule
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1040
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s gpsvc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1016
  • C:\Users\Admin\AppData\Local\Temp\790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8.exe
    "C:\Users\Admin\AppData\Local\Temp\790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Users\Admin\AppData\Local\Temp\790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8.exe
      "C:\Users\Admin\AppData\Local\Temp\790decaa7992369cbcdad2c787d66cd9c08556f84bd5f06a0638e5feca0d5fb8.exe" -h
      2⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:4024
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
    1⤵
    • Process spawned unexpected child process
    • Suspicious use of WriteProcessMemory
    PID:1700
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
      2⤵
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4620

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\db.dat
    Filesize

    557KB

    MD5

    4b81022967a53f322b4f0be01179ab04

    SHA1

    f7fe8346bb11e37a9d0bdb5c32cdf9eabfb87fde

    SHA256

    e05152185dc5bb2ae7e1564159166c1fd81702f03473fc793ffa005ca09f2cc1

    SHA512

    125cccf8ae62a3f297c2b7e94585e9f7275a4c213cfaaa419a64fc0a345b6f7a9bc7677fa534785e38714cfd5227dcd5d3beea61e24b33907a63e4b32f330fd1

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\db.dll
    Filesize

    52KB

    MD5

    1b20e998d058e813dfc515867d31124f

    SHA1

    c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

    SHA256

    24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

    SHA512

    79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

    Download Submit
  • \Users\Admin\AppData\Local\Temp\db.dll
    Filesize

    52KB

    MD5

    1b20e998d058e813dfc515867d31124f

    SHA1

    c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

    SHA256

    24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

    SHA512

    79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

    Download Submit
  • memory/1016-136-0x000002B98EE00000-0x000002B98EE72000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1016-165-0x000002B98EE00000-0x000002B98EE72000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1040-217-0x000001DE2E0B0000-0x000001DE2E122000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1040-171-0x000001DE2E0B0000-0x000001DE2E122000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1144-158-0x0000023F73B00000-0x0000023F73B72000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1144-172-0x0000023F73B00000-0x0000023F73B72000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1268-221-0x00000165C2AA0000-0x00000165C2B12000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1268-193-0x00000165C2AA0000-0x00000165C2B12000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1380-222-0x000001B1FBA60000-0x000001B1FBAD2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1380-200-0x000001B1FBA60000-0x000001B1FBAD2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1452-218-0x000001E1777D0000-0x000001E177842000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1452-179-0x000001E1777D0000-0x000001E177842000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1848-220-0x000001E25D040000-0x000001E25D0B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1848-186-0x000001E25D040000-0x000001E25D0B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2264-168-0x000001E0264B0000-0x000001E026522000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2264-145-0x000001E0264B0000-0x000001E026522000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2344-223-0x000001B675E40000-0x000001B675EB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2344-207-0x000001B675E40000-0x000001B675EB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2352-152-0x0000026DA5E40000-0x0000026DA5EB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2352-170-0x0000026DA5E40000-0x0000026DA5EB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2360-213-0x000002199AE10000-0x000002199AE82000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2360-224-0x000002199AE10000-0x000002199AE82000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2796-128-0x000001465B900000-0x000001465B972000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2796-163-0x000001465B900000-0x000001465B972000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2796-130-0x000001465B610000-0x000001465B65D000-memory.dmp
    Filesize

    308KB

    Download
  • memory/2796-125-0x000001465B610000-0x000001465B65D000-memory.dmp
    Filesize

    308KB

    Download
  • memory/4148-242-0x000001E4F1670000-0x000001E4F168B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/4148-166-0x000001E4EFC40000-0x000001E4EFCB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4148-147-0x000001E4EFC40000-0x000001E4EFCB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4148-231-0x000001E4EFC40000-0x000001E4EFCB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4148-137-0x000001E4EFC40000-0x000001E4EFCB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4148-243-0x000001E4F2400000-0x000001E4F250B000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4148-244-0x000001E4F1690000-0x000001E4F16B0000-memory.dmp
    Filesize

    128KB

    Download
  • memory/4148-245-0x000001E4F1700000-0x000001E4F171B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/4148-260-0x000001E4F2400000-0x000001E4F250B000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4620-219-0x0000000000B10000-0x0000000000B6E000-memory.dmp
    Filesize

    376KB

    Download
  • memory/4620-159-0x0000000000C70000-0x0000000000D7C000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4620-162-0x0000000000B10000-0x0000000000B6E000-memory.dmp
    Filesize

    376KB

    Download