Overview

overview

10

Static

static

3

08734899.exe

windows7-x64

10

08734899.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2023 06:54

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General

  • Target

    08734899.exe

  • Size

    232KB

  • MD5

    60fabd1a2509b59831876d5e2aa71a6b

  • SHA1

    8b91f3c4f721cb04cc4974fc91056f397ae78faa

  • SHA256

    1dacdc296fd6ef6ba817b184cce9901901c47c01d849adfa4222bfabfed61838

  • SHA512

    3e842a7d47b32942adb936cae13293eddf1a6b860abcfe7422d0fb73098264cc95656b5c6d9980fad1bf8b5c277cd846c26acaba1bef441582caf34eb1e5295a

  • SSDEEP

    3072:BMhIBKH7j7DzQi7y5bvl4YAbdY9KWvwn7XHMzqEOf64CEEl64HBVdGXPKD:BMh5H7j5g54YZKXoxOuEEl64HZAi

Score
10/10
chimeraransomwarespywarestealer

Malware Config

Signatures

  • Chimera 64 IoCs

    Ransomware which infects local and network files, often distributed via Dropbox links.

    ransomwarechimera
  • Chimera Ransomware Loader DLL 1 IoCs

    Drops/unpacks executable file which resembles Chimera's Loader.dll.

    ransomware
  • Renames multiple (4256) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 27 IoCs
  • 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 Program Files directory 64 IoCs
  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
    adwarespyware
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08734899.exe
    "C:\Users\Admin\AppData\Local\Temp\08734899.exe"
    1⤵
    • Chimera
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -k "C:\Users\Admin\Music\YOUR_FILES_ARE_ENCRYPTED.HTML"
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2880 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4768

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.8.0_66\jre\YOUR_FILES_ARE_ENCRYPTED.HTML
    Filesize

    4KB

    MD5

    bccd1b2356da1399dc07dc40d2b13231

    SHA1

    36a75204df05067966cb4a1f6884f3622935c3f0

    SHA256

    0a3ffe6d7b3eeeb2e4881033ddd5678259abd5773a9c147465c30c61f904177c

    SHA512

    cfa6f4af5e9812ac2067554b64880d2694273f3783931e331963f5925e275184135721102534c7de332a35c640fbaaed2e8b8b85d5426581f1cb18d01c832cb7

    Download Submit

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
    Filesize

    471B

    MD5

    20e784043bf9dd5a4a234ce3703f825e

    SHA1

    178607f94705ec6161c2c3a88177ef6a5aaded49

    SHA256

    1455f3acd9f00c4a3d7fac6caf8566bdffb868aec09f86fea8acc17a525b6c72

    SHA512

    8ae93f0b68ee867a881dcac4628b8ad77c559925f721b46be904d40ec00f909916280057ce09cf8e28cb3eca938aab58d4e210f4c61e56e3443c3555e113f955

    Download Submit

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
    Filesize

    404B

    MD5

    d8854b554a8644e51922f00c6779f8bc

    SHA1

    406faea8928e20ed1ada46cbd6b0f18aeefcb3d6

    SHA256

    41d0ee07ad3e6aea5d9356ecb5c3e4a20e58cc3b4e2393aab98fbfd6852fb6c4

    SHA512

    de1efd2a44cf36b04259d2c6f0849efe470b9efaa4d983709b31ff540a28d6c2b3538dab575370ea34ca48c1d0d16263974fc5adb67e063538b843dbb39ddf3a

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\UUIKWEAJ\suggestions[1].en-US
    Filesize

    17KB

    MD5

    5a34cb996293fde2cb7a4ac89587393a

    SHA1

    3c96c993500690d1a77873cd62bc639b3a10653f

    SHA256

    c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

    SHA512

    e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    Download Submit

  • C:\Users\Admin\Favorites\Links\YOUR_FILES_ARE_ENCRYPTED.HTML
    Filesize

    4KB

    MD5

    bccd1b2356da1399dc07dc40d2b13231

    SHA1

    36a75204df05067966cb4a1f6884f3622935c3f0

    SHA256

    0a3ffe6d7b3eeeb2e4881033ddd5678259abd5773a9c147465c30c61f904177c

    SHA512

    cfa6f4af5e9812ac2067554b64880d2694273f3783931e331963f5925e275184135721102534c7de332a35c640fbaaed2e8b8b85d5426581f1cb18d01c832cb7

    Download Submit

  • C:\Users\Admin\Favorites\YOUR_FILES_ARE_ENCRYPTED.HTML
    Filesize

    4KB

    MD5

    bccd1b2356da1399dc07dc40d2b13231

    SHA1

    36a75204df05067966cb4a1f6884f3622935c3f0

    SHA256

    0a3ffe6d7b3eeeb2e4881033ddd5678259abd5773a9c147465c30c61f904177c

    SHA512

    cfa6f4af5e9812ac2067554b64880d2694273f3783931e331963f5925e275184135721102534c7de332a35c640fbaaed2e8b8b85d5426581f1cb18d01c832cb7

    Download Submit

  • C:\Users\Admin\Music\YOUR_FILES_ARE_ENCRYPTED.HTML
    Filesize

    4KB

    MD5

    bccd1b2356da1399dc07dc40d2b13231

    SHA1

    36a75204df05067966cb4a1f6884f3622935c3f0

    SHA256

    0a3ffe6d7b3eeeb2e4881033ddd5678259abd5773a9c147465c30c61f904177c

    SHA512

    cfa6f4af5e9812ac2067554b64880d2694273f3783931e331963f5925e275184135721102534c7de332a35c640fbaaed2e8b8b85d5426581f1cb18d01c832cb7

    Download Submit

  • memory/1664-133-0x0000000010000000-0x0000000010010000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1664-138-0x0000000001240000-0x0000000001250000-memory.dmp

    Filesize

    64KB

    Download

  • memory/1664-139-0x00000000050E0000-0x00000000050FA000-memory.dmp

    Filesize

    104KB

    Download

  • memory/1664-795-0x0000000001240000-0x0000000001250000-memory.dmp

    Filesize

    64KB

    Download