Overview

overview

10

Static

static

fdec933ca1...65.exe

windows7_x64

10

fdec933ca1...65.exe

windows10_x64

10

Analysis

  • max time kernel
    141s
  • max time network
    68s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    12-03-2021 20:53

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General

  • Target

    fdec933ca1dd1387d970eeea32ce5d1f87940dfb6a403ab5fc149813726cbd65.exe

  • Size

    1.3MB

  • MD5

    6be28a4523984698e7154671f73361bf

  • SHA1

    b974375ef0f6dcb6ce30558df2ed8570bf1ad642

  • SHA256

    fdec933ca1dd1387d970eeea32ce5d1f87940dfb6a403ab5fc149813726cbd65

  • SHA512

    c3a44431e8cbb76d75ea2a1caca6fe77dfbd2a9565da918620433d415d396c08394ecb1c6454fc69661d61683711e53b60a69435e25518a04e81c20136f62f20

Score
10/10
dearcrypersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\PROGRAMDATA\DESKTOP\readme.txt

Family

dearcry

Ransom Note
Your file has been encrypted! If you want to decrypt, please contact us. [email protected] or [email protected] And please send me the following hash! d37fc1eabc6783a418d23a8d2ba5db5a

Signatures

  • DearCry

    DearCry is a ransomware first seen after the 2021 Microsoft Exchange hacks.

    ransomwaredearcry
  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Modifies extensions of user files 6 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) 56 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies registry class 34 IoCs
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 52 IoCs
  • Suspicious use of SendNotifyMessage 29 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fdec933ca1dd1387d970eeea32ce5d1f87940dfb6a403ab5fc149813726cbd65.exe
    "C:\Users\Admin\AppData\Local\Temp\fdec933ca1dd1387d970eeea32ce5d1f87940dfb6a403ab5fc149813726cbd65.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:1456
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3024 -s 2916
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3836
  • C:\Windows\explorer.exe
    explorer.exe
    1⤵
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:412
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:364
  • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:416
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3460 -s 1096
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3380

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\Windows\Caches\cversions.2.db
    MD5

    4534f12102d235344cf8dda748f0cabf

    SHA1

    7db67baceeecb3a420bf37a7beca4a45185f8f3c

    SHA256

    1bd4db450abc8914c2fac721cace2704ff4c16028e6d07293154dad289835694

    SHA512

    7b4dacdbc6a2fccdd3818eb41b7fa23eeec51f333af0e842d9185c7ae45eba1623369b1caa27b824cba10c4cd6a2cdbf7f127ab2c6f7656eedce5fe25a0b84a2

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\cversions.3.db
    MD5

    4534f12102d235344cf8dda748f0cabf

    SHA1

    7db67baceeecb3a420bf37a7beca4a45185f8f3c

    SHA256

    1bd4db450abc8914c2fac721cace2704ff4c16028e6d07293154dad289835694

    SHA512

    7b4dacdbc6a2fccdd3818eb41b7fa23eeec51f333af0e842d9185c7ae45eba1623369b1caa27b824cba10c4cd6a2cdbf7f127ab2c6f7656eedce5fe25a0b84a2

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\{3DA71D5A-20CC-432F-A115-DFE92379E91F}.3.ver0x000000000000001d.db
    MD5

    001ed257544479fa1d1d84aacbd780a7

    SHA1

    4e95b0b5a1933198ce75f73a422c3b91aac7b27c

    SHA256

    b472e5d0984e03cde3b9fceda14a15fabbdc0bf9a30e90cddadf0d34bb8a54d8

    SHA512

    6b7cbc42f3e2578668453cfef198ccdbf23e6cb90872999345e7865e386c1c24c40e60713f159c27e1f0f21c63b53b1b4b4de12c469efa4733b50f0c839c0b66

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\{3DA71D5A-20CC-432F-A115-DFE92379E91F}.3.ver0x000000000000001d.db.CRYPT
    MD5

    beb546a25cb4fd7005acce8d987260c3

    SHA1

    b5b0e8ab9acaf4586c68b64b74b3ea51d08292cc

    SHA256

    0db5c6265c26de61cd33dc043932a68efe125165376f4b31ee1ed38f8d9bbe0d

    SHA512

    af65029c3bf0bab39919c5855b29761652f63b8ea64a4061ace9691e2113c6ae19c1aecf495bd5b021897113b7317f575ddc6b0f583205b78230e211c383f708

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\{3DA71D5A-20CC-432F-A115-DFE92379E91F}.3.ver0x000000000000001e.db
    MD5

    ee9d7b9b6fc4ab1acf4ac43701498b9d

    SHA1

    9d6e96c3f25b1b18e1f14715dc4057b97969c07d

    SHA256

    796bd017de8f008aed75f5ca9808953f18483269ec4974998cf06847d9832d95

    SHA512

    e053fef2be0f799f15c9af7a4abb5267187dd40c80c02daf553e32b5038d285f3af907dc4f6371a0d8827a3c185f4bcc488004db7136bb482f178be6b305ee54

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Caches\{3DA71D5A-20CC-432F-A115-DFE92379E91F}.3.ver0x000000000000001e.db.CRYPT
    MD5

    00ba95e6ab9b4a8f333dff39db3fbcd2

    SHA1

    fbedfa7c4b6a75114374c240625945129cf26ad0

    SHA256

    7d83e6f807257a0f33edcb73a6fb5493e249878038102ac0bd7e43d5067f71b5

    SHA512

    cf1be2cf7eb4abaf318095d734c11ec55ea57a0763861e34622ba1264211d4cc784fc9a4a2e4e0d46780d31e1f8cb0aa1ca8aaa4f0e61c20517ff1bf764a0f10

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_48.db
    MD5

    e6065c4aa2ab1603008fc18410f579d4

    SHA1

    9a7dcfd9029de86dc088ee6ebbef48df90e7c6cd

    SHA256

    4e29ad18ab9f42d7c233500771a39d7c852b200baf328fd00fbbe3fecea1eb56

    SHA512

    1339d6533a0b875db3f1f607290f8de0e8f79172390faa03fe1ae15cb738b9c64828b08ed11721acc2909cc9394cc9cc115c9d7c9895cefa76f5146614961277

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
    MD5

    d62de45260290993ab8f379c928263eb

    SHA1

    1a885ddfea2427607247084565bf7b547005b7cc

    SHA256

    5443a81a010bc1ff7da14947d3737287a2045bac55e5a7057ce5d17171989c58

    SHA512

    66228c968e4691940ec8e3265de44ca328e7787dcd04fd4a6a0142a63164f70aaada515221e2a9654d7790e90ed1b73cf63024f65c72b3313b05c82c3ee67ec3

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_256.db
    MD5

    e6065c4aa2ab1603008fc18410f579d4

    SHA1

    9a7dcfd9029de86dc088ee6ebbef48df90e7c6cd

    SHA256

    4e29ad18ab9f42d7c233500771a39d7c852b200baf328fd00fbbe3fecea1eb56

    SHA512

    1339d6533a0b875db3f1f607290f8de0e8f79172390faa03fe1ae15cb738b9c64828b08ed11721acc2909cc9394cc9cc115c9d7c9895cefa76f5146614961277

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_48.db
    MD5

    c7c6abfa9cb508f7fc178d4045313a94

    SHA1

    4f130f23896bd6d0e95f2a42b2cb83d17ac8f1a2

    SHA256

    1bda9f0aed80857d43c9329457f28b1ca29f736a0c539901e1ba16a909eb07b4

    SHA512

    9f1c1e438b8cceda02663a61a64c1c5fc6fb6238aa92d30e6d8d1a7b0cb29a8a6f26b63b9964ad876617f71ee7dc3c05205158c4ed4be327149652b1c6900825

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_idx.db
    MD5

    d62de45260290993ab8f379c928263eb

    SHA1

    1a885ddfea2427607247084565bf7b547005b7cc

    SHA256

    5443a81a010bc1ff7da14947d3737287a2045bac55e5a7057ce5d17171989c58

    SHA512

    66228c968e4691940ec8e3265de44ca328e7787dcd04fd4a6a0142a63164f70aaada515221e2a9654d7790e90ed1b73cf63024f65c72b3313b05c82c3ee67ec3

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\counters2.dat
    MD5

    af35b0d348e5162036e183339d385b0c

    SHA1

    2927490ade868795ecdd8febe05214cbd243ef35

    SHA256

    b6ac3cc10386331c765f04f041c147d0f278f2aed8eaa021e2d0057fc6f6ff9e

    SHA512

    6486a74d95f54812a76071f6c6344ab6d34df3da685ec70dc78d9c5804b4ee3c449d9e68a6b52491f8275b838c2cd9102c3c223a620bbee2671edbff2611594e

    Download Submit

  • memory/3380-17-0x00000282F2EB0000-0x00000282F2EB1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3836-2-0x000001DD3E140000-0x000001DD3E141000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3836-3-0x000001DD3E140000-0x000001DD3E141000-memory.dmp

    Filesize

    4KB

    Download