3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6

Analysis

max time kernel
300s
max time network
120s
platform
windows7_x64
resource
win7-en-20211208
submitted
18/01/2022, 04:03

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General

Target
3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
Size 3.4MB
Sample220118-emrgjsgfb7
SHA256 3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6
MD5 2b695c8132a1ab1b4014b4fc2f4a2eb4
SHA1 87905c51244903f99bcc3c55fbe3122a5303043e
SHA512 a24b2b3a238713b38c9fb6b8f53e156aec0da4c01adca220e1c87497596d938b828b0991a28d541b0688a0b3834abd652735cbec742f6645655f8e857e19ebd1
MD5 SHA1 SHA512

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1616	OTPGenerator.exe
1612	AWastUI.exe
1732	rdpclipe.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00070000000125df-56.dat	upx
behavioral1/files/0x00070000000125df-57.dat	upx

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AWastUI.exe.lnk	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rdpclipe.exe.lnk	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe

Loads dropped DLL 3 IoCs

pid	Process
1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe

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

System Information Discovery
T1082

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
1964	systeminfo.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
564	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1732	rdpclipe.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	564	powershell.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
1616	OTPGenerator.exe
1616	OTPGenerator.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 1616	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	27
PID 1684 wrote to memory of 1616	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	27
PID 1684 wrote to memory of 1616	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	27
PID 1684 wrote to memory of 1616	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	27
PID 1684 wrote to memory of 1612	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	28
PID 1684 wrote to memory of 1612	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	28
PID 1684 wrote to memory of 1612	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	28
PID 1684 wrote to memory of 1612	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	28
PID 1612 wrote to memory of 612	1612	AWastUI.exe	29
PID 1612 wrote to memory of 612	1612	AWastUI.exe	29
PID 1612 wrote to memory of 612	1612	AWastUI.exe	29
PID 1612 wrote to memory of 612	1612	AWastUI.exe	29
PID 1612 wrote to memory of 564	1612	AWastUI.exe	31
PID 1612 wrote to memory of 564	1612	AWastUI.exe	31
PID 1612 wrote to memory of 564	1612	AWastUI.exe	31
PID 1612 wrote to memory of 564	1612	AWastUI.exe	31
PID 612 wrote to memory of 1964	612	cmd.exe	33
PID 612 wrote to memory of 1964	612	cmd.exe	33
PID 612 wrote to memory of 1964	612	cmd.exe	33
PID 612 wrote to memory of 1964	612	cmd.exe	33
PID 564 wrote to memory of 1012	564	powershell.exe	36
PID 564 wrote to memory of 1012	564	powershell.exe	36
PID 564 wrote to memory of 1012	564	powershell.exe	36
PID 564 wrote to memory of 1012	564	powershell.exe	36
PID 1684 wrote to memory of 1732	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	37
PID 1684 wrote to memory of 1732	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	37
PID 1684 wrote to memory of 1732	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	37
PID 1684 wrote to memory of 1732	1684	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	37

C:\Users\Admin\AppData\Local\Temp\3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
"C:\Users\Admin\AppData\Local\Temp\3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Users\Admin\AppData\Local\Temp\OTPGenerator.exe
  C:\Users\Admin\AppData\Local\Temp\OTPGenerator.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1616
- C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\AWastUI.exe
  C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\AWastUI.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:1612
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c systeminfo >> C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\SysInfo_UP_18_05_04.pdf
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:612
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:1964
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell $dir = 'C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\';$gps = @('A','B','C','D','E','F','G','H','I','H','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');foreach ($gp in $gps){$drv = $gp + ':\';if([System.IO.Directory]::Exists($drv)){$path = $dir + '\UP' + $gp;tree /f "$drv" | Out-File -Encoding default -FilePath $path -Width 5000;} }
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:564
  - - C:\Windows\SysWOW64\tree.com
      "C:\Windows\system32\tree.com" /f C:\
      4⤵
      PID:1012
- C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\rdpclipe.exe
  C:\Users\Admin\AppData\Local\MICROS~1\Outlooka\rdpclipe.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  PID:1732

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/564-63-0x0000000002370000-0x0000000002FBA000-memory.dmp

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memory/564-64-0x0000000002370000-0x0000000002FBA000-memory.dmp

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memory/564-65-0x0000000002370000-0x0000000002FBA000-memory.dmp

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memory/1684-55-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

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