Overview

overview

10

Static

static

1

winprofile

windows7-x64

10

winprofile

windows10-1703-x64

10

Analysis

  • max time kernel
    301s
  • max time network
    176s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08-03-2023 03:56

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General

  • Target

    ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0.exe

  • Size

    308KB

  • MD5

    6bbbf2b1e89ed9d3b1bba44fc9acec53

  • SHA1

    bb6b962ba30a55a9cbb87030bdd282223e42a48d

  • SHA256

    ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0

  • SHA512

    a7651ba72b4b45f3f4a7901412d1d3b41f8847fd59b15b9a61092cb9a2c4bc38aa1a2d274b549e49608e70b4ff1f4ab120a814e1fd5cffe7dd8d1a644aa737a0

  • SSDEEP

    6144:bOsY+HgEiTA14Xn0Ti8v1bbFgXIQdjrfzNt1sEP3:i814Xn0Ti8tbJyIQdjrfzCEP3

Score
10/10
pseudomanuscryptloader

Malware Config

Signatures

  • Detects PseudoManuscrypt payload 29 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 6 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 22 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 gpsvc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:352
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s IKEEXT
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2216
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s WpnService
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2496
  • 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:2516
    • 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:4296
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Winmgmt
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2448
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s LanmanServer
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2236
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ShellHWDetection
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1864
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s SENS
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1428
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s UserManager
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1384
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Themes
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1188
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s ProfSvc
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1100
  • c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s Schedule
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1040
  • C:\Users\Admin\AppData\Local\Temp\ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0.exe
    "C:\Users\Admin\AppData\Local\Temp\ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Users\Admin\AppData\Local\Temp\ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0.exe
      "C:\Users\Admin\AppData\Local\Temp\ad716b9b395d65dca7a31117215c2adedf392162eab7beee500f8061db4785c0.exe" -h
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:2160
  • 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:4276
    • 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:3032

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

    30d5f615722d12fdda4f378048221909

    SHA1

    e94e3e3a6fae8b29f0f80128761ad1b69304a7eb

    SHA256

    b7cb464cd0c61026ec38d89c0a041393bc9369e217303677551eec65a09d2628

    SHA512

    a561a224d7228ec531a966c7dbd6bc88138e2f4a1c8112e5950644f69bf3a43b1e87e03bc1b4fd5e9ca071b5a9353b18697573404602ccd51f2946faf95144c2

    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/352-149-0x000001CC18830000-0x000001CC188A2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/352-134-0x000001CC18830000-0x000001CC188A2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1040-168-0x0000021A59840000-0x0000021A598B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1040-194-0x0000021A59840000-0x0000021A598B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1100-161-0x000001F728A40000-0x000001F728AB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1100-191-0x000001F728A40000-0x000001F728AB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1188-199-0x0000019941D90000-0x0000019941E02000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1188-188-0x0000019941D90000-0x0000019941E02000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1384-201-0x000001E6F3100000-0x000001E6F3172000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1384-222-0x000001E6F3100000-0x000001E6F3172000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1428-195-0x00000266EC560000-0x00000266EC5D2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1428-175-0x00000266EC560000-0x00000266EC5D2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1864-196-0x000001FD05A20000-0x000001FD05A92000-memory.dmp
    Filesize

    456KB

    Download
  • memory/1864-181-0x000001FD05A20000-0x000001FD05A92000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2216-187-0x000001F8FC610000-0x000001F8FC682000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2216-147-0x000001F8FC610000-0x000001F8FC682000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2236-190-0x0000014FE2540000-0x0000014FE25B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2236-155-0x0000014FE2540000-0x0000014FE25B2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2448-209-0x000002260DA30000-0x000002260DAA2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2448-223-0x000002260DA30000-0x000002260DAA2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2496-224-0x000001E62EB40000-0x000001E62EBB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2496-217-0x000001E62EB40000-0x000001E62EBB2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2516-146-0x000002913E850000-0x000002913E8C2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/2516-123-0x000002913E550000-0x000002913E59D000-memory.dmp
    Filesize

    308KB

    Download
  • memory/2516-128-0x000002913E550000-0x000002913E59D000-memory.dmp
    Filesize

    308KB

    Download
  • memory/2516-126-0x000002913E850000-0x000002913E8C2000-memory.dmp
    Filesize

    456KB

    Download
  • memory/3032-143-0x00000000045C0000-0x000000000461E000-memory.dmp
    Filesize

    376KB

    Download
  • memory/3032-220-0x00000000045C0000-0x000000000461E000-memory.dmp
    Filesize

    376KB

    Download
  • memory/3032-141-0x00000000044B0000-0x00000000045B7000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4296-135-0x000001E5F60D0000-0x000001E5F6142000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4296-151-0x000001E5F60D0000-0x000001E5F6142000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4296-145-0x000001E5F60D0000-0x000001E5F6142000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4296-228-0x000001E5F60D0000-0x000001E5F6142000-memory.dmp
    Filesize

    456KB

    Download
  • memory/4296-234-0x000001E5F7D40000-0x000001E5F7D5B000-memory.dmp
    Filesize

    108KB

    Download
  • memory/4296-235-0x000001E5F8600000-0x000001E5F870B000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4296-243-0x000001E5F7D60000-0x000001E5F7D80000-memory.dmp
    Filesize

    128KB

    Download
  • memory/4296-244-0x000001E5F7D90000-0x000001E5F7DAB000-memory.dmp
    Filesize

    108KB

    Download
  • memory/4296-260-0x000001E5F8600000-0x000001E5F870B000-memory.dmp
    Filesize

    1.0MB

    Download
  • memory/4296-261-0x000001E5F7D40000-0x000001E5F7D5B000-memory.dmp
    Filesize

    108KB

    Download