Overview

overview

10

Static

static

feb3e6d30b...in.exe

windows7_x64

10

feb3e6d30b...in.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    11-03-2021 22:57

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General

  • Target

    feb3e6d30ba573ba23f3bd1291ca173b7879706d1fe039c34d53a4fdcdf33ede.bin.exe

  • Size

    1.3MB

  • MD5

    c6eeb14485d93f4e30fb79f3a57518fc

  • SHA1

    b7d99521348d319f57d2b2ba7045295fc99cf6a7

  • SHA256

    feb3e6d30ba573ba23f3bd1291ca173b7879706d1fe039c34d53a4fdcdf33ede

  • SHA512

    1cf95db6bb1b4b047ae91711c5f14c618c19ddee2465df44905e082a59c53d3aeee0e69e9aaf562ba117015e2e84ccfaed6b94d863dc6c153ba4ac8a17264ee5

Score
10/10
dearcrypersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\PROGRAM FILES (X86)\ADOBE\ACROBAT READER DC\READER\WEBRESOURCES\RESOURCE0\STATIC\JS\PLUGINS\DESKTOP-CONNECTOR-FILES\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! 2133c369fb115ea61eebd7b62768decf

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 9 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) 58 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 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 47 IoCs
  • Suspicious use of SendNotifyMessage 26 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\feb3e6d30ba573ba23f3bd1291ca173b7879706d1fe039c34d53a4fdcdf33ede.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\feb3e6d30ba573ba23f3bd1291ca173b7879706d1fe039c34d53a4fdcdf33ede.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:412
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2876 -s 5636
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3544
  • 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:4080
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:3464
  • 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:904
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3488 -s 1396
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3888

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

    6879d9fc5f6c6d138f959eac38dac6a2

    SHA1

    c13a36ef8d861dd9c2845627432ebe798cd73a96

    SHA256

    f7cca3ae98a5d55676e7bdf13c177d10373e56a8b0b2200bb0cf77bffec3bc0f

    SHA512

    d89be8da15fece291040eaa39c6454ad2527282f4df36ac19cfe70e5bd7226425a9d53abdd1167c4d6a290e39c45dd4d46ca451c73b0dd43ef14e9cf492b4867

    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

  • C:\Users\All Users\Microsoft\Windows\WER\Temp\WERE187.tmp.WERInternalMetadata.xml
    MD5

    32451207e50bb3e62e14904e1a3fed9a

    SHA1

    e13d34a2f1a715ee3ebdacdb9610de5bc9632a02

    SHA256

    9268bd114781d7891ab175302a93550fdaf31245f0e06e46418f707cdf8d14e8

    SHA512

    2b5616b2b804ea8bf1f46077f20fce779f35af1fe5060b2115b16521dc767690c0d48593df67453ab8ac88ef02256e3ee74908763fb0decba37d4a5c8bae8525

    Download Submit

  • memory/3544-2-0x000002577F2A0000-0x000002577F2A1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3544-3-0x000002577F2A0000-0x000002577F2A1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3888-14-0x00000243FAF90000-0x00000243FAF91000-memory.dmp

    Filesize

    4KB

    Download