Overview

overview

10

Static

static

1.exe

windows7_x64

10

1.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    13-03-2021 15:32

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    1.exe

  • Size

    1.3MB

  • MD5

    9f05994819a3d8c1a3769352c7c39d1d

  • SHA1

    eb2457196e04dfdd54f70bd32ed02ae854d45bc0

  • SHA256

    10bce0ff6597f347c3cca8363b7c81a8bff52d2ff81245cd1e66a6e11aeb25da

  • SHA512

    32cac848f47a0096773435c6365fcbd6bdb02115aae2677aec5a86031b6def938033210fdcf0e12f735aa5ceb8cd4be5f7edb5cdc437bbca61f0d79196ec9be8

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. konedieyp@airmail.cc or uenwonken@memail.com And please send me the following hash! 2133c369fb115ea61eebd7b62768decf
Emails

konedieyp@airmail.cc

uenwonken@memail.com

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 4 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) 59 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 1 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 57 IoCs
  • Suspicious use of FindShellTrayWindow 52 IoCs
  • Suspicious use of SendNotifyMessage 28 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1.exe
    "C:\Users\Admin\AppData\Local\Temp\1.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:492
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3016 -s 3540
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3700
  • 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:3384
  • 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:2464
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:3392

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

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\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/3700-2-0x00000252EA3A0000-0x00000252EA3A1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3700-3-0x00000252EA3A0000-0x00000252EA3A1000-memory.dmp
    Filesize

    4KB

    Download