3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6

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
204	OTPGenerator.exe
1416	AWastUI.exe
3048	rdpclipe.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000002211c-133.dat	upx
behavioral2/files/0x000700000002211c-134.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

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
840	systeminfo.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3048	rdpclipe.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
204	OTPGenerator.exe
204	OTPGenerator.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 204	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	52
PID 1824 wrote to memory of 204	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	52
PID 1824 wrote to memory of 204	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	52
PID 1824 wrote to memory of 1416	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	56
PID 1824 wrote to memory of 1416	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	56
PID 1824 wrote to memory of 1416	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	56
PID 1416 wrote to memory of 3408	1416	AWastUI.exe	59
PID 1416 wrote to memory of 3408	1416	AWastUI.exe	59
PID 1416 wrote to memory of 3408	1416	AWastUI.exe	59
PID 1416 wrote to memory of 3440	1416	AWastUI.exe	61
PID 1416 wrote to memory of 3440	1416	AWastUI.exe	61
PID 1416 wrote to memory of 3440	1416	AWastUI.exe	61
PID 3408 wrote to memory of 840	3408	cmd.exe	63
PID 3408 wrote to memory of 840	3408	cmd.exe	63
PID 3408 wrote to memory of 840	3408	cmd.exe	63
PID 1824 wrote to memory of 3048	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	70
PID 1824 wrote to memory of 3048	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	70
PID 1824 wrote to memory of 3048	1824	3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe	70

C:\Users\Admin\AppData\Local\Temp\3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe
"C:\Users\Admin\AppData\Local\Temp\3275f42c85c9e2fcb80d1f8c1c6227c2bcde9c0e719905ddbd2ca7373c6a8ec6.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824
- 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:204
- 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:1416
- - 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:3408
  - - C:\Windows\SysWOW64\systeminfo.exe
      systeminfo
      4⤵
      Gathers system information
      PID:840
- - 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⤵
    PID:3440
  - - C:\Windows\SysWOW64\tree.com
      "C:\Windows\system32\tree.com" /f C:\
      4⤵
      PID:2248
- 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:3048

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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